UM SSL2109ADB channel DC-to-DC LED driver demo board. Document information

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1 UM0689 SSL09ADB 4-channel DC-to-DC LED driver demo board Rev.. May 0 User manual Document information Info Keywords Abstract Content SSL09T, SSL09AT, SSL09ADB, buck, controller, reference board, LED driver, PWM This document explains the operation and application of the SSL09AT 4-channel, small form factor demo board. The demo board incorporates four independent DC-to-DC switch mode current drivers with a common input power stage. By default, the board is optimized to drive A (typical) per channel. The board is particularly suitable for use in street and high-bay lighting applications. Multiple user configuration options are available for the demo board; some options require components changes.

2 UM0689 Revision history Rev Date Description v Section..6 and Section 4. added; Table reformatted v. 006 first issue Contact information For more information, please visit: For sales office addresses, please send an to: UM0689 All information provided in this document is subject to legal disclaimers. NXP B.V. 0. All rights reserved. User manual Rev.. May 0 of 6

3 UM0689. Introduction WARNING Lethal voltage and fire ignition hazard The non-insulated high voltages that are present when operating this product, constitute a risk of electric shock, personal injury, death and/or ignition of fire. This product is intended for evaluation purposes only. It shall be operated in a designated test area by personnel qualified according to local requirements and labor laws to work with non-insulated mains voltages and high-voltage circuits. This product shall never be operated unattended. The SSL09AT 4-channel demo board demonstrates the LED driving capabilities of the SSL09AT device. The SSL09T (with Short-Winding Protection (SWP)) could replace the SSL09AT on the demo board if SWP is required. Typical target applications for the demo board include LED street lighting, high and low bay lighting, and refrigeration lighting. Each channel is individually dimmable using Pulse Width Modulation (PWM). The circuit contains four Boundary Conduction Mode (BCM) buck converters and a common input power stage. The BCM buck converter is a true switch-mode current source. Key features of the board include: Up to 98 % efficiency User-configurable output current (no custom-made magnetic components needed) Intrinsically protected against short-circuit, open load and overtemperature conditions BCM buck converters operate as true switch-mode current sources Operates with input voltages ranging from V (DC) to 600 V (DC) with some component changes Low-cost LED driver solution Small form factor PWM dimming Independent or combined channel control No LED binning required Applications: Street lighting High and low bay lighting Refrigeration lighting Figure is a populated view of the demo board; Figure shows the connections. UM0689 All information provided in this document is subject to legal disclaimers. NXP B.V. 0. All rights reserved. User manual Rev.. May 0 of 6

4 UM0689 aaa aaa-0069 Fig. a. top view b. bottom view SSL09ADB demo board PWM input Ch and Ch Optional Auxiliary supply 48-5 V GND () () () (4) (5) (6) Ch: 4- LEDs -4 A Ch: 4- LEDs -4 A - + Ch: 4- LEDs -4 A - + (6) Ch4: 4- LEDs -4 A (5) PWM input Ch and Ch4 aaa-0069 Fig. () Main DC supply input (48 V to 5 V) () Main supply ground (GND) () Optional auxiliary supply (5 V to 0 V) (4) Jumper for internal/external V CC supply (5) PWM inputs (Ch to Ch4) (6) LED string connections (Ch to Ch4) SSL09ADB demo board showing connections UM0689 All information provided in this document is subject to legal disclaimers. NXP B.V. 0. All rights reserved. User manual Rev.. May 0 4 of 6

5 UM0689. Specifications. Functional description Table. Demo board specifications Parameter Value Comment Output current A the channels can be configured individually Supply voltage 48 V (DC) to 5 V (DC) the board can be used with other combinations of input/output voltages; it is recommended to keep the switching frequency between 0 khz and 00 khz Output voltage V to 4 V at 5 V (DC) input voltage Efficiency > 90 % see Figure 5 Auxiliary supply voltage 5 V (DC) to 0 V (DC) optional Switching frequency 65 khz to 0 khz at 5 V (DC) input voltage PWM frequency 0. khz to khz dimming resolution < % Board dimensions 5 mm 58.5 mm length width. Introduction The SSL09AT multi-channel demo board circuit consists of a general power input section and four SSL09AT current source sections. Each of the current source sections contains the following blocks: common power input, dimming input, switching circuit, current measurement/feedback and output. Figure 9 is a circuit diagram of the demo board default configuration. The BOM component list is detailed in Table... General power input section The common power input section of the default demo board consists of a buffer capacitor (C8) and terminal TB5. TB5 has two ports and must be connected to the mains input DC voltage (48 V to 5 V) and to ground, as marked on the board. J4 can be connected to an auxiliary power supply (5 V (DC) to 0 V (DC)). By default, jumper J (a -way female jumper) connects the V CC supply voltage to the SSL09ATs via resistors R, R, R4 and R5. So the auxiliary supply is not needed in the default configuration... PWM dimming sections The PWM dimming input signals are connected to the IC input ports via J and J, as indicated on the PCB (see Figure ). 0 nf capacitors are used for low-pass filtering. Voltage reference D9 is provided for fast booting of the SSL09AT ICs. Alternatively, C, C4, C5 and C6 can be tied to ground. The dimming input signals are connected to the SSL09AT control pins (NTC). When a low voltage signal ( 0.4 V < V low < 0. V) is supplied to this pin, the SSL09AT converter is effectively disabled. A high voltage (0.5 V < V high < 5. V) on the same pin causes the SSL09AT to be fully enabled. The light output can be varied by toggling between low and high voltages on pin NTC. Typically, the light output is exactly proportional to the duty ratio of the PWM dimming signal. In principle, any PWM frequency is acceptable for PWM dimming. In practice, a very low PWM frequency can give the impression that the LED string is flickering. A very high frequency can result in inaccurate dimming, since PWM dimming resolution is proportional to the ratio between the switching frequency and PWM frequency. The UM0689 All information provided in this document is subject to legal disclaimers. NXP B.V. 0. All rights reserved. User manual Rev.. May 0 5 of 6

6 UM0689 slew-rate of the PWM signal must be steep enough (> 00V/sec between 0. V and 0. V) to prevent the SSL09AT activating overtemperature protection. See the SSL09 data sheet for more information. A PWM frequency in the range 00 Hz to khz is recommended for most applications. SMD coils are mounted on the default demo board. SMD coils generate the least amount of audible noise when PWM dimming is used. Cheaper through-hole coils can be substituted if PWM dimming is not used (as specified in the BOM, see Table ). Typical PWM input (yellow) and output current (pink) waveforms are shown in Figure. aaa Fig. Typical PWM input and output current waveforms.. SSL09 demagnetization detection A new cycle starts when the primary switch is turned on and the current starts to ramp up via the current sense resistors (R, R, R, R4). The switch is turned off when the current reaches I peak, and it starts to ramp down again. When the current reaches zero, the drain voltage starts to oscillate. The peak-to-peak amplitude equals V O. A special feature called valley detection is integrated into the SSL09. Dedicated built-in circuitry senses the voltage on the DRAIN pin. A valley is detected when the differential voltage between V HV and V DRAIN falls to 5 V. Therefore, the minimum output voltage is.5 V. If a valid valley is not detected, the secondary stroke continues until the maximum off-time of the SSL09 (t off(high) ) has been exceeded. A new cycle then begins...4 Output selection The switching section generates a sawtooth-shaped current waveform in the inductor. The current ramps up linearly from 0 A to I peak and then ramps down again linearly from I peak to 0 A. This waveform is not applied directly to the LED load. Capacitors C9, C0, C and C in the output sections reduce the ripple on the LED current. The output current ripple is relatively high by default (<0%, see Figure ) and is dependent on the LED load. Ripple can be reduced by adding extra output capacitance, although higher output capacitance will affect the transient response speed at the output. The transient response time must be fast for PWM dimming. UM0689 All information provided in this document is subject to legal disclaimers. NXP B.V. 0. All rights reserved. User manual Rev.. May 0 6 of 6

7 UM Different voltage and current versions Some components would need to be changed to allow the demo board to be used to drive longer LED strings (higher output voltage) and operate at a higher supply voltage. The input voltage rating of the circuit can be increased by substituting components with a higher input voltage rating for C8, C9, C0, C, C, C5, C6, C7, C8, Q, Q, Q, Q4, D5, D6, D7 and D8. For maximum efficiency, it is recommended to use either the auxiliary supply or the DVDT supply (C, C4, C5, C6) for higher input voltages. The output current can be controlled by changing the values of R, R, R and R4. Inductance value may also need to be changed in order to maintain a suitable switching frequency. D, D, D and D4 can be used instead of D5, D6, D7 and D8 if lower output currents are required...6 Extra low output voltage A voltage swing of at least 5 V is required in order for the valley detection circuitry of the SSL09A to detect a valley. Therefore, the minimum output voltage is limited to.5 V. The output voltage range can be extended below.5 V by replacing the buck coil with a transformer. The secondary side of the transformer can be connected to the DRAIN pin on the SSL09A. The secondary side of the transformer should have more windings than the primary side; this will increase the magnitude of the ringing voltage (see the schematic diagram, Figure 4). R6 is required to filter the ringing caused by the transformer leakage inductance. The converter still operates as a true boundary conduction mode buck SMPS. Table provides an overview of the output voltage versus efficiency for this configuration. Table. Extra low output voltage measurements P I (W) V I (V) I O (ma) V O (V) efficiency (%) Vin C5 μf 00 V D PMEG600EP C9. μf 6 V TB LED+ LED- PWM HV U 8 7 NTC SSL09A 6 SOURCE 4 5 DRAIN GND DVDT DRIVER D0 PMEG600EP 4 R6 00 kω Q PHT6NQ0T 4 6 OSTTC006 T N(4,6):N(,)=:5 Vin C 0 nf R5 0 kω C μf R 0.5 Ω aaa Fig 4. SSL09A extra low output power schematic UM0689 All information provided in this document is subject to legal disclaimers. NXP B.V. 0. All rights reserved. User manual Rev.. May 0 7 of 6

8 UM Performance data 4. Efficiency The SSL09AT 4-channel demo board is suitable for driving long or short LED strings. High efficiency figures (98 %) are normally only obtained with relatively long LED strings. Figure 5 gives an indication of the level of efficiency that can be expected from the demo board. Efficiency levels are consistent over a wide range of output voltages. 00 % 90 aaa Vout Fig 5. Efficiency curve UM0689 All information provided in this document is subject to legal disclaimers. NXP B.V. 0. All rights reserved. User manual Rev.. May 0 8 of 6

9 UM Load and Line regulation The output current of the SSL09AT 4-channel demo board varies slightly with the load and the supply voltage. The curves in Figure 5 and Figure 6 demonstrate that the demo board has excellent load and line regulation properties, which is ideal for general lighting purposes (line regulation was measured by changing the critical default capacitors to similar types with higher voltage ratings). The slight variations in light output intensity are barely visible to the human eye. 00 LED current (A) 900 aaa Vout Fig 6. Load regulation 00 LED current (A) 900 aaa Vin Fig 7. Line regulation UM0689 All information provided in this document is subject to legal disclaimers. NXP B.V. 0. All rights reserved. User manual Rev.. May 0 9 of 6

10 UM Output current accuracy One hundred SSL09ADB demo boards were constructed, each containing four SSL09AT current source sections. The current at the output of all four hundred LED string drivers was measured under typical conditions. Figure 8 shows how the measurement results were distributed. 50 number of measurments 00 aaa V O (A) Fig 8. Distribution chart of V O measurements for all 400 LED drivers 5. ElectroMagnetic Interference (EMI) The SSL09AT 4-channel demo board is pre-compliant with EMC regulations. UM0689 All information provided in this document is subject to legal disclaimers. NXP B.V. 0. All rights reserved. User manual Rev.. May 0 0 of 6

11 User manual Rev.. May 0 of 6 UM0689 All information provided in this document is subject to legal disclaimers. NXP B.V. 0. All rights reserved. xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxx x x x xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xx xx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxx x x xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx xxx 6. Schematic Fig 9. Vin VDD 5 V PWM Vin VDD 5 V PWM R5 0 kω R6 0 kω C 0 nf C4 0 nf R 80 Ω C5 μf 00 V R kω D PMEG600EP n.m. U HV DRAIN 8 GND 7 NTC DVDT 6 SOURCE DRIVER 4 5 C SSL09AT μf C6 μf 00 V D PMEG600EP n.m. U HV DRAIN 8 GND 7 NTC DVDT 6 SOURCE DRIVER 4 5 C SSL09AT μf OSTTC005 B8 J TSW-50--L-S CES-50-0-S-S R kω R0 4.7 kω R4 kω D9 BZX84-C5V C 00 nf 00 V n.m. 4 R5 kω D5 V8P0-M/86A L L n.m. Q PHT6NQ0T R 0.5 Ω Schematic diagram of demo board default configuration C4 00 nf 00 V n.m μh 47 μh D6 V8P0-M/86A L C7 00 nf L n.m. Q PHT6NQ0T R 0.5 Ω 47 μh 47 μh Vin C8 0 μf 6 V 5 V C9. μf 6 V C0. μf 6 V C9. μf 00 V n.m. C0. μf 00 V n.m. OSTTCC006 OSTTCC006 J PWM 4 PWM 5 5 V CES-50-0-S-S Vin VDD 5 V PWM Vin VDD 5 V PWM4 R7 0 kω R8 0 kω C5 0 nf C6 0 nf J PWM4 4 PWM 5 5 V CES-50-0-S-S C7 μf 00 V D PMEG600EP n.m. U HV DRAIN 8 GND 7 NTC DVDT 6 SOURCE DRIVER 4 5 C SSL09AT μf C8 μf 00 V D4 PMEG600EP n.m. U4 HV DRAIN 8 GND 7 NTC DVDT 6 SOURCE DRIVER 4 5 C4 SSL09AT μf C5 00 nf 00 V n.m. 4 D7 V8P0-M/86A L C6 00 nf 00 V n.m. 4 L n.m. Q PHT6NQ0T R 0.5 Ω 47 μh 47 μh D8 V8P0-M/86A L4 L4 n.m. Q4 PHT6NQ0T R4 0.5 Ω 47 μh 47 μh C. μf 6 V C. μf 6 V C. μf 00 V n.m. C. μf 00 V n.m. OSTTCC006 TB LED+ LED- TB LED+ LED- TB LED+ LED- TB5 Vin+ Vin- J4 Vaux+ Vaux- TB4 LED+ LED- OSTTCC006 aaa NXP Semiconductors UM0689

12 UM Bill of materials (BOM) Table. BOM for 4-channel SSL09AT demo board Reference Description and values Part number Manufacturer C capacitor; F; ; 0805; X7R; 0 % tolerance CC0805KKX7R8BB05 Yageo C capacitor; F; ; 0805; X7R; 0 % tolerance CC0805KKX7R8BB05 Yageo C capacitor; F; ; 0805; X7R; 0 % tolerance CC0805KKX7R8BB05 Yageo C4 capacitor; F; ; 0805; X7R; 0 %tolerance CC0805KKX7R8BB05 Yageo C5 capacitor; F; 00 V; 06; X7R; 0 % tolerance C6X7RA05M TDK C6 capacitor; F; 00 V; 06; X7R; 0 % tolerance C6X7RA05M TDK C7 capacitor; F; 00 V; 06; X7R; 0 % tolerance C6X7RA05M TDK C8 capacitor; F; 00 V; 06; X7R; 0 % tolerance C6X7RA05M TDK C9 capacitor;. F; 6 V; MKT; 5 % tolerance R60DF40506AJ Kemet C0 capacitor;. F; 6 V; MKT; 5 % tolerance R60DF40506AJ Kemet C capacitor;. F; 6 V; MKT; 5 % tolerance R60DF40506AJ Kemet C capacitor;. F; 6 V; MKT; 5 % tolerance R60DF40506AJ Kemet C capacitor; 0 nf; ; 0805; X7R; 0 % tolerance C4 capacitor; 0 nf; ; 0805; X7R; 0 % tolerance C5 capacitor; 0 nf; ; 0805; X7R; 0 % tolerance C6 capacitor; 0 nf; ; 0805; X7R; 0 % tolerance C7 capacitor; 00 nf; ; 0805; X7R; 0 % tolerance 08055C04KATA AVX C8 capacitor; 0 F; 6 V; ALU; 0 % tolerance ELXY60ELLML0S United Chemi-Con C9 capacitor;. F; 00 V; 0; X7S; 0 % tolerance; C5X7SA5K TDK not mounted C0 capacitor;. F; 00 V; 0; X7S; 0 % tolerance; C5X7SA5K TDK not mounted C capacitor;. F; 00 V; 0; X7S; 0 % tolerance; C5X7SA5K TDK not mounted C capacitor;. F; 00 V; 0; X7S; 0 % tolerance; C5X7SA5K TDK not mounted C capacitor; 00 nf; 00 V; 0805; X7R; 0 % tolerance; 08055C04KATA AVX not mounted C4 capacitor; 00 nf; 00 V; 0805; X7R; 0 % tolerance; 08055C04KATA AVX not mounted C5 capacitor; 00 nf; 00 V; 0805; X7R; 0 % tolerance; 08055C04KATA AVX not mounted C6 capacitor; 00 nf; 00 V; 0805; X7R; 0 % tolerance; 08055C04KATA AVX not mounted D diode; Schottky; A; 60 V; SOD8; not mounted PMEG600EP NXP Semiconductors D diode; Schottky; A; 60 V; SOD8; not mounted PMEG600EP NXP Semiconductors D diode; Schottky; A; 60 V; SOD8; not mounted PMEG600EP NXP Semiconductors D4 diode; Schottky; A; 60 V; SOD8; not mounted PMEG600EP NXP Semiconductors D5 diode; Schottky; 8 A; 00 V; TO-77A V8P0-M/86A Vishay D6 diode; Schottky; 8 A; 00 V; TO-77A V8P0-M/86A Vishay D7 diode; Schottky; 8 A; 00 V; TO-77A V8P0-M/86A Vishay UM0689 All information provided in this document is subject to legal disclaimers. NXP B.V. 0. All rights reserved. User manual Rev.. May 0 of 6

13 UM0689 Table. BOM for 4-channel SSL09AT demo board Reference Description and values Part number Manufacturer D8 diode; Schottky; 8 A; 00 V; TO-77A V8P0-M/86A Vishay D9 diode; Zener; 5. V; 50 mw; SO- BZX84-C5V Fairchild J -way male header connector with -way female jumper J 5-way female receptacle connector J 5-way female receptacle connector J4 -way female header connector L choke; 47 H;.8 A; 0 % tolerance Würth Elektronik L choke; 47 H;.8 A; 0 % tolerance Würth Elektronik L choke; 47 H;.8 A; 0 % tolerance Würth Elektronik L4 choke; 47 H;.8 A; 0 % tolerance Würth Elektronik L choke; 47 H; A; 0 % tolerance; not mounted Würth Elektronik L choke; 47 H; A; 0 % tolerance; not mounted Würth Elektronik L choke; 47 H; A; 0 % tolerance; not mounted Würth Elektronik L4 choke; 47 H; A; 0 % tolerance; not mounted Würth Elektronik Q MOSFET-N; 00 V; 6.5 A; SOT PHT6NQ0T NXP Semiconductors Q MOSFET-N; 00 V; 6.5 A; SOT PHT6NQ0T NXP Semiconductors Q MOSFET-N; 00 V; 6.5 A; SOT PHT6NQ0T NXP Semiconductors Q4 MOSFET-N; 00 V; 6.5 A; SOT PHT6NQ0T NXP Semiconductors R resistor; 0.5 ; 5 W; %; 06 R resistor; 0.5 ; 5 W; %; 06 R resistor; 0.5 ; 5 W; %; 06 R4 resistor; 0.5 ; 5 W; %; 06 R5 resistor; 0 k ; 0.5 W; 5 %; 0805 R6 resistor; 0 k ; 0.5 W; 5 %; 0805 R7 resistor; 0 k ; 0.5 W; 5 %; 0805 R8 resistor; 0 k ; 0.5 W; 5 %; 0805 R0 resistor; 4.7 k ; 0.5 W; 5 %; 0805 R resistor; 80 ; 0.5 W; 5 %; 06 R resistor; k ; 0.5 W; 5 %; 0805 R resistor; k ; 0.5 W; 5 %; 0805 R4 resistor; k ; 0.5 W; 5 %; 0805 R5 resistor; k ; 0.5 W; 5 %; 0805 TB -way terminal block TB -way terminal block TB -way terminal block TB4 -way terminal block TB5 -way terminal block U IC; LED driver SSL09AT NXP Semiconductors U IC; LED driver SSL09AT NXP Semiconductors U IC; LED driver SSL09AT NXP Semiconductors U4 IC; LED driver SSL09AT NXP Semiconductors UM0689 All information provided in this document is subject to legal disclaimers. NXP B.V. 0. All rights reserved. User manual Rev.. May 0 of 6

14 UM Board layout aaa aaa Fig 0. a. top b. bottom Board layout UM0689 All information provided in this document is subject to legal disclaimers. NXP B.V. 0. All rights reserved. User manual Rev.. May 0 4 of 6

15 UM Legal information 9. Definitions Draft The document is a draft version only. The content is still under internal review and subject to formal approval, which may result in modifications or additions. NXP Semiconductors does not give any representations or warranties as to the accuracy or completeness of information included herein and shall have no liability for the consequences of use of such information. 9. Disclaimers Limited warranty and liability Information in this document is believed to be accurate and reliable. However, NXP Semiconductors does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information. NXP Semiconductors takes no responsibility for the content in this document if provided by an information source outside of NXP Semiconductors. In no event shall NXP Semiconductors be liable for any indirect, incidental, punitive, special or consequential damages (including - without limitation - lost profits, lost savings, business interruption, costs related to the removal or replacement of any products or rework charges) whether or not such damages are based on tort (including negligence), warranty, breach of contract or any other legal theory. Notwithstanding any damages that customer might incur for any reason whatsoever, NXP Semiconductors aggregate and cumulative liability towards customer for the products described herein shall be limited in accordance with the Terms and conditions of commercial sale of NXP Semiconductors. Right to make changes NXP Semiconductors reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any time and without notice. This document supersedes and replaces all information supplied prior to the publication hereof. Suitability for use NXP Semiconductors products are not designed, authorized or warranted to be suitable for use in life support, life-critical or safety-critical systems or equipment, nor in applications where failure or malfunction of an NXP Semiconductors product can reasonably be expected to result in personal injury, death or severe property or environmental damage. NXP Semiconductors and its suppliers accept no liability for inclusion and/or use of NXP Semiconductors products in such equipment or applications and therefore such inclusion and/or use is at the customer s own risk. Applications Applications that are described herein for any of these products are for illustrative purposes only. NXP Semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. Customers are responsible for the design and operation of their applications and products using NXP Semiconductors products, and NXP Semiconductors accepts no liability for any assistance with applications or customer product design. It is customer s sole responsibility to determine whether the NXP Semiconductors product is suitable and fit for the customer s applications and products planned, as well as for the planned application and use of customer s third party customer(s). Customers should provide appropriate design and operating safeguards to minimize the risks associated with their applications and products. NXP Semiconductors does not accept any liability related to any default, damage, costs or problem which is based on any weakness or default in the customer s applications or products, or the application or use by customer s third party customer(s). Customer is responsible for doing all necessary testing for the customer s applications and products using NXP Semiconductors products in order to avoid a default of the applications and the products or of the application or use by customer s third party customer(s). NXP does not accept any liability in this respect. Export control This document as well as the item(s) described herein may be subject to export control regulations. Export might require a prior authorization from competent authorities. Evaluation products This product is provided on an as is and with all faults basis for evaluation purposes only. NXP Semiconductors, its affiliates and their suppliers expressly disclaim all warranties, whether express, implied or statutory, including but not limited to the implied warranties of non-infringement, merchantability and fitness for a particular purpose. The entire risk as to the quality, or arising out of the use or performance, of this product remains with customer. In no event shall NXP Semiconductors, its affiliates or their suppliers be liable to customer for any special, indirect, consequential, punitive or incidental damages (including without limitation damages for loss of business, business interruption, loss of use, loss of data or information, and the like) arising out the use of or inability to use the product, whether or not based on tort (including negligence), strict liability, breach of contract, breach of warranty or any other theory, even if advised of the possibility of such damages. Notwithstanding any damages that customer might incur for any reason whatsoever (including without limitation, all damages referenced above and all direct or general damages), the entire liability of NXP Semiconductors, its affiliates and their suppliers and customer s exclusive remedy for all of the foregoing shall be limited to actual damages incurred by customer based on reasonable reliance up to the greater of the amount actually paid by customer for the product or five dollars (US$5.00). The foregoing limitations, exclusions and disclaimers shall apply to the maximum extent permitted by applicable law, even if any remedy fails of its essential purpose. Safety of high-voltage evaluation products The non-insulated high voltages that are present when operating this product, constitute a risk of electric shock, personal injury, death and/or ignition of fire. This product is intended for evaluation purposes only. It shall be operated in a designated test area by personnel that is qualified according to local requirements and labor laws to work with non-insulated mains voltages and high-voltage circuits. The product does not comply with IEC based national or regional safety standards. NXP Semiconductors does not accept any liability for damages incurred due to inappropriate use of this product or related to non-insulated high voltages. Any use of this product is at customer s own risk and liability. The customer shall fully indemnify and hold harmless NXP Semiconductors from any liability, damages and claims resulting from the use of the product. 9. Trademarks Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners. UM0689 All information provided in this document is subject to legal disclaimers. NXP B.V. 0. All rights reserved. User manual Rev.. May 0 5 of 6

16 UM Contents Introduction Specifications Functional description Introduction General power input section PWM dimming sections SSL09 demagnetization detection Output selection Different voltage and current versions Extra low output voltage Performance data Efficiency Load and Line regulation Output current accuracy ElectroMagnetic Interference (EMI) Schematic Bill of materials (BOM) Board layout Legal information Definitions Disclaimers Trademarks Contents Please be aware that important notices concerning this document and the product(s) described herein, have been included in section Legal information. NXP B.V. 0. All rights reserved. For more information, please visit: For sales office addresses, please send an to: [email protected] Date of release: May 0 Document identifier: UM0689