Dual P-Channel 40 V (D-S) MOSFET



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Si7905DN Dual P-Channel 0 V (D-S) MOSFET PRODUCT SUMMARY V DS (V) R DS(on) ( ) I D (A) Q g (Typ.) - 0 0.060 at V GS = - 0 V - 6 e nc 0.089 at V GS = -.5V - 5 f FEATURES Halogen-free According to IEC 69-- Definition TrenchFET Power MOSFET Low Thermal Resistance PowerPAK Package with Small Size and Low.07 mm Profile 00 % R g and UIS Tested Compliant to RoHS Directive 00/95/EC APPLICATIONS Load Switch PowerPAK -8 S S S 3.30 mm 3.30 mm G S 3 G G G D 8 D 7 D 6 D 5 Bottom View D D Ordering Information: Si7905DN-T-E3 (Lead (Pb)-free) Si7905DN-T-GE3 (Lead (Pb)-free and Halogen-free) P-Channel MOSFET P-Channel MOSFET ABSOLUTE MAXIMUM RATINGS (T A = 5 C, unless otherwise noted) Parameter Symbol Limit Unit Drain-Source Voltage V DS - 0 V Gate-Source Voltage V GS ± 0 T C = 5 C - 6 e T Continuous Drain Current (T J = 50 C) C = 70 C - 5 I D T A = 5 C - 5 a, b T A = 70 C - a, b A Pulsed Drain Current I DM - 0 T Continuous Source-Drain Diode Current C = 5 C - 6 I e S T A = 5 C - a, b Avalanche Current I AS - 5 L = 0. mh Single-Pulse Avalanche Energy E AS.5 mj T C = 5 C 0.8 T Maximum Power Dissipation C = 70 C 3.3 P D W T A = 5 C.5 a, b T A = 70 C.6 a, b Operating Junction and Storage Temperature Range T J, T stg - 55 to 50 C Soldering Recommendations (Peak Temperature) c, d 60 Notes: a. Surface mounted on " x " FR board. b. t = 0 s. c. See solder profile (/ppg?7357). The PowerPAK -8 is a leadless package. The end of the lead terminal is exposed copper (not plated) as a result of the singulation process in manufacturing. A solder fillet at the exposed copper tip cannot be guaranteed and is not required to ensure adequate bottom side solder interconnection. d. Rework conditions: manual soldering with a soldering iron is not recommended for leadless components. e. Package limited. f. T C = 5 C. Document Number: 6990 S-87-Rev. C, 07-Nov- This document is subject to change without notice. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT /doc?9000

Si7905DN THERMAL RESISTANCE RATINGS Parameter Symbol Typical Maximum Unit Maximum Junction-to-Ambient a, b t 0 s R thja 38 50 Maximum Junction-to-Case (Drain) Steady State R thjc.5 6 C/W Notes: a. Surface mounted on " x " FR board. b. Maximum under steady state conditions is 9 C/W. SPECIFICATIONS (T J = 5 C, unless otherwise noted) Parameter Symbol Test Conditions Min. Typ. Max. Unit Static Drain-Source Breakdown Voltage V DS V GS = 0 V, I D = - 50 µa - 0 V V DS Temperature Coefficient V DS /T J - I D = - 50 µa V GS(th) Temperature Coefficient V GS(th) /T J.3 mv/ C Gate-Source Threshold Voltage V GS(th) V DS = V GS, I D = - 50 µa - - 3 V Gate-Source Leakage I GSS V DS = 0 V, V GS = ± 0 V ± 00 na V DS = - 0 V, V GS = 0 V - Zero Gate Voltage Drain Current I DSS V DS = - 0 V, V GS = 0 V, T J = 55 C - 0 µa On-State Drain Current a I D(on) V DS - 5 V, V GS = - 0 V - 0 A Drain-Source On-State Resistance a V R GS = - 0 V, I D = - 5 A 0.08 0.060 DS(on) V GS = -.5 V, I D = - A 0.065 0.089 Forward Transconductance a g fs V DS = - 5 V, I D = - 5 A 5 S Dynamic b Input Capacitance C iss 880 Output Capacitance C oss V DS = - 0 V, V GS = 0 V, f = MHz 00 pf Reverse Transfer Capacitance C rss 80 V Total Gate Charge Q DS = - 0 V, V GS = - 0 V, I D = - 5 A 0 30 g 6.5 nc Gate-Source Charge Q gs V DS = - 0 V, V GS = -.5 V, I D = - 5 A 3 Gate-Drain Charge Q gd 5 Gate Resistance R g f = MHz 5.7 8.6 Turn-On Delay Time t d(on) 65 Rise Time t r V DD = - 0 V, R L = 5 00 50 Turn-Off DelayTime t d(off) I D - A, V GEN = -.5 V, R g = 0 Fall Time t f 7 Turn-On Delay Time t d(on) 6 0 ns Rise Time t r V DD = - 0 V, R L = 5 3 0 Turn-Off DelayTime t d(off) I D - A, V GEN = - 0 V, R g = 6 0 Fall Time t f 0 6 Drain-Source Body Diode Characteristics Continuous Source-Drain Diode Current I S T C = 5 C - 6 Pulse Diode Forward Current a I SM - 0 A Body Diode Voltage V SD I F = - A - 0.8 -. V Body Diode Reverse Recovery Time t rr 0 30 ns Body Diode Reverse Recovery Charge Q rr 5 3 nc I F = - A, di/dt = 00 A/µs, T J = 5 C Reverse Recovery Fall Time t a ns Reverse Recovery Rise Time t b 6 Notes: a. Pulse test; pulse width 300 µs, duty cycle %. b. Guaranteed by design, not subject to production testing. Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Document Number: 6990 S-87-Rev. C, 07-Nov- This document is subject to change without notice. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT /doc?9000

Si7905DN TYPICAL CHARACTERISTICS (5 C, unless otherwise noted) 0 V GS =0thru 5 V 3.0 5 V GS =V. I D - Drain Current (A) 0 5 V GS =3V I D - Drain Current (A).8. 0.6 T C =5 C T C = 5 C V GS =V 0 0.0 0.6..8. 3.0 V DS - Drain-to-Source Voltage (V) Output Characteristics 0. T C = - 55 C 0.0 0 3 V GS - Gate-to-Source Voltage (V) Transfer Characteristics 500 - D to S On-Resistance (Ω) R DS(on) 0.09 0.06 0.03 V GS =.5V V GS =0V C - Capacitance (pf) 00 900 600 300 C iss C oss 0.00 0 5 0 5 0 I D - Drain Current (A) On-Resistance vs. Drain Current and Gate Voltage C rss 0 0 8 6 3 0 V DS - Drain-to-Source Voltage (V) Capacitance 0.8 I D =5A - Gate-to-Source Voltage (V) V GS 8 6 V DS =0V V DS =3V R DS(on) - On-Resistance (Normalized).5. 0.9 V GS =0V, I D =5A V GS =.5V, I D =A 0 0 8 6 0 Q g - Total Gate Charge (nc) Gate Charge 0.6-50 - 5 0 5 50 75 00 5 50 T J -Junction Temperature ( C) On-Resistance vs. Junction Temperature Document Number: 6990 S-87-Rev. C, 07-Nov- 3 This document is subject to change without notice. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT /doc?9000

Si7905DN TYPICAL CHARACTERISTICS (5 C, unless otherwise noted) 00 0.0 - Source Current (A) IS 0 0. 0.0 T J = 50 C T J = 5 C - On-Resistance (Ω) R DS(on) 0.5 0.0 0.05 I D =5A T A = 5 C T A = 5 C 0.00 0.0 0.3 0.6 0.9. V SD -Source-to-Drain Voltage (V) Source-Drain Diode Forward Voltage. 0.00 0 6 8 0 V GS -Gate-to-Source Voltage (V) On-Resistance vs. Gate-to-Source Voltage 50.0 0 (V) V GS(th).8.6 I D = 50 µa Power (W) 30 0. 0. - 50-5 0 5 50 75 00 5 50 T J - Temperature ( C) Threshold Voltage 0 0.00 0.0 0. 0 00 000 Time (s) Single Pulse Power, Junction-to-Ambient 00 Limited by R DS(on) * 0 00 µs - Drain Current (A) I D 0. ms 0 ms 00 ms s 0 s T A = 5 C DC Single Pulse 0.0 0. 0 00 V DS - Drain-to-Source Voltage (V) * V GS > minimum V GS at which R DS(on) is specified Safe Operating Area, Junction-to-Ambient Document Number: 6990 S-87-Rev. C, 07-Nov- This document is subject to change without notice. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT /doc?9000

Si7905DN TYPICAL CHARACTERISTICS (5 C, unless otherwise noted) 6 I D - Drain Current (A) 8 Package Limited 0 0 5 50 75 00 5 50 T C - Case Temperature ( C) Current Derating* 5.6 0. Power (W) 5 0 Power (W) 0.8 5 0. 0 0 5 50 75 00 5 50 0.0 0 5 50 75 00 5 50 T C - Case Temperature ( C) Power, Junction-to-Case T A -Ambient Temperature ( C) Power, Junction-to-Ambient * The power dissipation P D is based on T J(max) = 50 C, using junction-to-case thermal resistance, and is more useful in settling the upper dissipation limit for cases where additional heatsinking is used. It is used to determine the current rating, when this rating falls below the package limit. Document Number: 6990 S-87-Rev. C, 07-Nov- 5 This document is subject to change without notice. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT /doc?9000

Si7905DN TYPICAL CHARACTERISTICS (5 C, unless otherwise noted) Duty Cycle = 0.5 Normalized Effective Transient Thermal Impedance 0. 0. 0. 0.05 0.0 0.0 Single Pulse Notes: Square Wave Pulse Duration (s) Normalized Thermal Transient Impedance, Junction-to-Ambient P DM t t t. Duty Cycle, D = t. Per Unit Base = R thja =9 C 3. T JM -T A =P DM Z (t) thja. Surface Mounted 0.00 0-0 -3 0-0 - 0 00 000 Duty Cycle = 0.5 Normalized Effective Transient Thermal Impedance 0. 0. 0. 0.05 0.0 Single Pulse 0.0 0-0 -3 0-0 - Square WavePulse Duration (s) Normalized Thermal Transient Impedance, Junction-to-Foot maintains worldwide manufacturing capability. Products may be manufactured at one of several qualified locations. Reliability data for Silicon Technology and Package Reliability represent a composite of all qualified locations. For related documents such as package/tape drawings, part marking, and reliability data, see /ppg?6990. 6 Document Number: 6990 S-87-Rev. C, 07-Nov- This document is subject to change without notice. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT /doc?9000

θ PowerPAK, (Single/Dual) Package Information W D H E E K L 8 M e Z D D D D5 3 5 b θ θ θ L A E3 Backside View of Single Pad c A H E E K L E E Notes:. Inch will govern Dimensions exclusive of mold gate burrs Detail Z H D D3(x) D D D K D5 3 b 3. Dimensions exclusive of mold flash and cutting burrs E3 Backside View of Dual Pad DIM. MILLIMETERS INCHES MIN. MAX. MIN. MAX. A 0.79. 0.03 0.0 A 0 0.05 0 0.00 b 0.3 0. 0.009 0.06 c 0.3 0.33 0.005 0.03 D 3.00 3.6 0.8 0. D.95 3. 0.6 0.6 D.98.70 0.078 0.06 D 0.3 TYP. 0.0 TYP. E 3.00 3.6 0.8 0. E.95 3. 0.6 0.6 E.7. 0.058 0.087 E3.75.98 0.069 0.078 E 0.535 TYP. 0.0 TYP. e 0.65 BSC 0.06 BSC K 0.6 0.0 K 0.35 0.0 H 0.5 0.5 0.006 0.00 L 0.5 0.56 0.006 0.0 L 0.05 0.0 0.00 0.008 θ 0 0 W 0.5 0.36 0.006 0.0 M 0.5 TYP. 0.005 TYP. ECN: C5-0077-Rev. K, 6-Jan-5 DWG: 588 Revison: 6-Jan-5 Document Number: 7656 THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT /doc?9000

AN8 PowerPAK Mounting and Thermal Considerations Johnson Zhao MOSFETs for switching applications are now available with die on resistances around mω and with the capability to handle 85 A. While these die capabilities represent a major advance over what was available just a few years ago, it is important for power MOSFET packaging technology to keep pace. It should be obvious that degradation of a high performance die by the package is undesirable. PowerPAK is a new package technology that addresses these issues. The PowerPAK -8 provides ultra-low thermal impedance in a small package that is ideal for space-constrained applications. In this application note, the PowerPAK -8 s construction is described. Following this, mounting information is presented. Finally, thermal and electrical performance is discussed. THE PowerPAK PACKAGE The PowerPAK -8 package (Figure ) is a derivative of PowerPAK SO-8. It utilizes the same packaging technology, maximizing the die area. The bottom of the die attach pad is exposed to provide a direct, low resistance thermal path to the substrate the device is mounted on. The PowerPAK -8 thus translates the benefits of the PowerPAK SO-8 into a smaller package, with the same level of thermal performance. (Please refer to application note PowerPAK SO-8 Mounting and Thermal Considerations. ) The PowerPAK -8 has a footprint area comparable to TSOP-6. It is over 0 % smaller than standard TSSOP-8. Its die capacity is more than twice the size of the standard TSOP-6 s. It has thermal performance an order of magnitude better than the SO-8, and 0 times better than TSSOP-8. Its thermal performance is better than all current SMT packages in the market. It will take the advantage of any PC board heat sink capability. Bringing the junction temperature down also increases the die efficiency by around 0 % compared with TSSOP-8. For applications where bigger packages are typically required solely for thermal consideration, the PowerPAK -8 is a good option. Both the single and dual PowerPAK -8 utilize the same pin-outs as the single and dual PowerPAK SO-8. The low.05 mm PowerPAK height profile makes both versions an excellent choice for applications with space constraints. PowerPAK SINGLE MOUNTING To take the advantage of the single PowerPAK -8 s thermal performance see Application Note 86, Recommended Minimum Pad Patterns With Outline Drawing Access for MOSFETs. Click on the PowerPAK -8 single in the index of this document. In this figure, the drain land pattern is given to make full contact to the drain pad on the PowerPAK package. This land pattern can be extended to the left, right, and top of the drawn pattern. This extension will serve to increase the heat dissipation by decreasing the thermal resistance from the foot of the PowerPAK to the PC board and therefore to the ambient. Note that increasing the drain land area beyond a certain point will yield little decrease in foot-to-board and foot-toambient thermal resistance. Under specific conditions of board configuration, copper weight, and layer stack, experiments have found that adding copper beyond an area of about 0.3 to 0.5 in of will yield little improvement in thermal performance. Figure. PowerPAK Devices Document Number 768 03-Mar-06

AN8 PowerPAK DUAL To take the advantage of the dual PowerPAK -8 s thermal performance, the minimum recommended land pattern can be found in Application Note 86, Recommended Minimum Pad Patterns With Outline Drawing Access for MOSFETs. Click on the PowerPAK -8 dual in the index of this document. The gap between the two drain pads is 0 mils. This matches the spacing of the two drain pads on the PowerPAK -8 dual package. This land pattern can be extended to the left, right, and top of the drawn pattern. This extension will serve to increase the heat dissipation by decreasing the thermal resistance from the foot of the PowerPAK to the PC board and therefore to the ambient. Note that increasing the drain land area beyond a certain point will yield little decrease in foot-to-board and foot-toambient thermal resistance. Under specific conditions of board configuration, copper weight, and layer stack, experiments have found that adding copper beyond an area of about 0.3 to 0.5 in of will yield little improvement in thermal performance. REFLOW SOLDERING surface-mount packages meet solder reflow reliability requirements. Devices are subjected to solder reflow as a preconditioning test and are then reliability-tested using temperature cycle, bias humidity, HAST, or pressure pot. The solder reflow temperature profile used, and the temperatures and time duration, are shown in Figures and 3. For the lead (Pb)-free solder profile, see http:/// doc?7357. Ramp-Up Rate + 6 C /Second Maximum Temperature at 55 ± 5 C 0 Seconds Maximum Temperature Above 80 C 70-80 Seconds Maximum Temperature 0 + 5/- 0 C Time at Maximum Temperature 0-0 Seconds Ramp-Down Rate + 6 C/Second Maximum Figure. Solder Reflow Temperature Profile 0-0 C 0 s (max) 3 C/s (max) C/s (max) 0-70 C 83 C 3 C/s (max) 60 s (min) Pre-Heating Zone 50 s (max) Reflow Zone Maximum peak temperature at 0 C is allowed. Figure 3. Solder Reflow Temperatures and Time Durations Document Number 768 03-Mar-06

AN8 TABLE : EQIVALENT STEADY STATE PERFORMANCE Package SO-8 TSSOP-8 TSOP-8 PPAK PPAK SO-8 Configuration Single Dual Single Dual Single Dual Single Dual Single Dual Thermal Resiatance R thjc (C/W) 0 0 5 83 0 90. 5.5.8 5.5 PowerPAK Standard SO-8 Standard TSSOP-8 TSOP-6 9.8 C 85 C 9 C 5 C. C/W 0 C/W 5 C/W 0 C/W PC Board at 5 C Figure. Temperature of Devices on a PC Board THERMAL PERFORMANCE Introduction A basic measure of a device s thermal performance is the junction-to-case thermal resistance, Rθjc, or the junction to- foot thermal resistance, Rθjf. This parameter is measured for the device mounted to an infinite heat sink and is therefore a characterization of the device only, in other words, independent of the properties of the object to which the device is mounted. Table shows a comparison of the PowerPAK -8, PowerPAK SO-8, standard TSSOP-8 and SO-8 equivalent steady state performance. By minimizing the junction-to-foot thermal resistance, the MOSFET die temperature is very close to the temperature of the PC board. Consider four devices mounted on a PC board with a board temperature of 5 C (Figure ). Suppose each device is dissipating W. Using the junction-to-foot thermal resistance characteristics of the PowerPAK -8 and the other SMT packages, die temperatures are determined to be 9.8 C for the PowerPAK -8, 85 C for the standard SO-8, 9 C for standard TSSOP-8, and 5 C for TSOP-6. This is a.8 C rise above the board temperature for the Power- PAK -8, and over 0 C for other SMT packages. A.8 C rise has minimal effect on r DS(ON) whereas a rise of over 0 C will cause an increase in r DS(ON) as high as 0 %. Spreading Copper Designers add additional copper, spreading copper, to the drain pad to aid in conducting heat from a device. It is helpful to have some information about the thermal performance for a given area of spreading copper. Figure 5 and Figure 6 show the thermal resistance of a PowerPAK -8 single and dual devices mounted on a -in. x -in., four-layer FR- PC boards. The two internal layers and the backside layer are solid copper. The internal layers were chosen as solid copper to model the large power and ground planes common in many applications. The top layer was cut back to a smaller area and at each step junction-to-ambient thermal resistance measurements were taken. The results indicate that an area above 0. to 0.3 square inches of spreading copper gives no additional thermal performance improvement. A subsequent experiment was run where the copper on the back-side was reduced, first to 50 % in stripes to mimic circuit traces, and then totally removed. No significant effect was observed. Document Number 768 03-Mar-06 3

AN8 05 30 95 Spreading Copper (sq. in.) 0 0 Spreading Copper (sq. in.) 85 00 R t hj A ( C/W) 75 65 00 % 55 50 % 0 % 5 0.00 0.5 0.50 0.75.00.5.50.75.00 Figure 5. Spreading Copper - Si70DN R thj A ( C/W) 90 80 70 60 50 50 % 00 % 0 % 0.00 0.5 0.50 0.75.00.5.50.75.00 Figure 6. Spreading Copper - Junction-to-Ambient Performance CONCLUSIONS As a derivative of the PowerPAK SO-8, the PowerPAK -8 uses the same packaging technology and has been shown to have the same level of thermal performance while having a footprint that is more than 0 % smaller than the standard TSSOP-8. Recommended PowerPAK -8 land patterns are provided to aid in PC board layout for designs using this new package. The PowerPAK -8 combines small size with attractive thermal characteristics. By minimizing the thermal rise above the board temperature, PowerPAK simplifies thermal design considerations, allows the device to run cooler, keeps r DS(ON) low, and permits the device to handle more current than a same- or larger-size MOS- FET die in the standard TSSOP-8 or SO-8 packages. Document Number 768 03-Mar-06

Application Note 86 RECOMMENDED MINIMUM PADS FOR PowerPAK -8 Dual 0.5 0.5 (3.860) (3.860) 0.039 0.039 (0.990) (0.990) 0.068 0.068 (.75) (.75) 0.00 (0.55) 0.06 0.06 (0.05) (0.05) 0.039 (0.990) 0.00 (0.5) APPLICATION NOTE 0.088 (.35) 0.09 (.390) 0.09 (.390) 0.06 (0.660) 0.06 (0.660) 0.05 (0.635) 0.039 (0.990) 0.030 (0.760) 0.05 0.030 (0.635) (0.760) Recommended Minimum PADs for PowerPAK -8 Dual Dimensions in Inches/(mm) Recommended Minimum Pads Dimensions in Inches/(mm) Return to Index Return to Index Document Number: 7598 Revision: -Apr-08

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