Introduction. Features. Applications

Transcription

1 Standard Products UT6CAN333x CAN FD Transceivers Product Brief August 20 The most important thing we build is trust Features Compatible with ISO 9-2 and 9- Standards 0kbps to Mbps baud rates Single 3.3V Supply Voltage Class 2 ESD for non-can bus pins Class 3B ESD for CAN bus pins (, CANH) Bus-Pin Fault Protection: ±36 V terrestrial and ±6 V in Orbit Common-mode range: - to +2 V Transient Protection: -60 to +0V Over current protection Low current standby mode: IDD 00 μa V tolerant digital I/O Cold Spare of digital I/O Product Options: Sleep mode (Figure ) Diagnostic loopback mode (Figure 2) Loopback for Auto-baud mode (Figure 3) Operational environment: Total dose: up to 00 krad(si) Latch-up immune (LET 00 MeV-cm2/mg) Packaging: -lead ceramic flatpack Standard Microelectronics Drawing (SMD) QML Q, V Pending Introduction (formerly Aeroflex) UT6- CAN333x series of Controller Area Network (CAN) transceivers are developed in accordance with the ISO 9-2 and 9- standards. The CAN transceiver provides the physical layer that permits operation on a differential CAN bus. This series of CAN transceivers are capable of baud rates between 0 kbps to Mbps and include a slope-control mode to control the slew rate of the transmissions for baud rates of up to 00kbps. A standby mode disables the transmitter circuit to conserve power while monitoring the bus for activity. The UT6CAN333x series of transceivers can support up to 20 nodes. The three transceiver options are: The UT6CAN3330 provides a low power sleep mode of operation. The UT6CAN333 supports a bus isolated diagnostic loopback. The UT6CAN3332 offers the ability to monitor bus traffic enabling the local controller to change its baud rate to match the operations of the bus. Applications Avionic/Aerospace sensor monitoring Avionic/Aerospace system telemetry Avionic/Aerospace command and control Utility Plane Communication Smart Sensor Communication ARINC2 applications Time Triggered (TTP/C and TTP/A) applications - -

2 August 20 Overview Overview The UT6CAN333x series CAN transceivers are low power serial communications devices developed to handle the demands of harsh space and terrestrial environments. The UT6CAN333x transceivers are compatible with the ISO 9-2 and 9- standards and operate as the physical layer between the bus and the CAN controller. All of the transceivers operate on a single +3.3V power supply and receive data with an input common-mode in the range of -V to +2V. The CANH and outputs are fault protected against short-circuits by over-current shutdown circuitry. Each UT6CAN333x CAN transceiver is capable of: Operations on any V bus or 3V bus Being a cold spare back-up to an active transceiver Programmable slew control on the bus driver Operating at baud rates up to Mbps Low-power standby mode. The standby mode permits the transceiver to enter a low-current, listen only, mode by disabling the driver while the receiver remains active. The local controller has the option to disable low-power standby mode when bus activity resumes Along with the common functionality just described, the UT6CAN333x family of transceivers includes three members, each with a unique mode of operation. The UT6CAN3330, Figure, provides the option to place the transceiver into a low power sleep mode to conserves power when CAN activity is suspended. Sleep mode disables the driver and receiver circuit when the ZZ pin is biased V IL. The part resumes operations when the ZZ pin is biased V IH. ZZ 6 CANH V SS V DD CANH ZZ Figure UT6CAN3330 (Sleep) The UT6CAN333, Figure 2, provides the option to isolate the transceiver bus connections to permit local node diagnostics, without interrupting operations on the bus. Diagnostic Loopback mode is enabled when the LBK pin is biased VIH. Diagnostic Loopback mode is disabled when the LBK pin is biased V IL

3 August 20 Overview LBK 6 CANH V SS V DD CANH LBK Figure 2 UT6CAN333 (Diagnostic Loopback) The UT6CAN3332, Figure 3, provides the option to automatically synchronize the baud rate of the transceiver by matching the bit timing to the traffic on the bus. The Auto Baud Loopback mode is enabled when the AB pin is biased V IH. Auto Baud Loopback mode is disabled when the AB pin is biased V IL. AB 6 CANH V SS V DD CANH AB Figure 3 UT6CAN3332 (Autobaud Loopback) The pin on the UT6CAN333x series CAN transceivers provides three functional modes of operation:. High-speed: The high-speed mode of operation is selected by connecting pin directly to ground, allowing the driver output to achieve a baud rate up to Mbps 2. Slope control: The rise and fall slopes are adjusted by connecting a resistor to ground at pin. The slope of the driver output signal is proportional to the pin's output current. This slope control is implemented with an external resistor value between 0kΩ to 00kΩ. These values control to slew rates between ~2.0 V/us to ~20 V/us. 3. Low-power standby mode: If is set to a high-level input (> 0.*VDD), the transceiver enters a low-current, listen only mode of operations. In this mode, the CAN bus driver is disabled and the receiver remains active. The CAN controller has ability to disable low-power standby mode once bus activity resumes. Table. Pin Function Definition Pin Function I IPU IPD O I/O Description LVTTL Compatible Input LVTTL Compatible Input with Internal Pull-up LVTTL Compatible Input with Internal Pull-down LVTTL Compatible Output LVTTL Compatible Bi-Direct - 3 -

4 August 20 Overview Table. Pin Function Definition Pin Function AI AO DI/O Description Analog Multi-Function Input Analog Output Differential Bi-Direct Table 2. Pin List and Description Pin Name Function Pin Number Default Description IPU -- Driver Input Data O * Receiver Output Data CANH DI/O * High-Level CAN Voltage Input/Output DI/O 6 * Low-Level CAN Voltage Input/Output ZZ IPD -- Active LOW, low-current sleep mode where both the driver and receiver circuits deactivate (UT6CAN3330 only) LBK IPD -- Active High, diagnostic loopback mode pin (UT6CAN333 only) AB IPD -- Active HIGH, bus listen-only loopback mode pin (UT6CAN3332 only) AI 0.V Operational Mode Select: Slope Control High speed Standby VDD Power 3 -- Supply voltage VSS Power 2 -- Ground NOTE Output follows the input (=Logic Low (Dominant) causes CANH- = 3.0V(Dominant) and = Logic Low (Dominant)) or input (=Logic High (Recessive) causes CANH- = 0V(Recessive) and = Logic High (Recessive)) - -

5 August 20 Electrical Characteristics 2 Electrical Characteristics Table 3. Absolute Maximum Ratings Symbol Description Min Max Unit V DD Supply Voltage Range V V I/O Voltage on TTL pins during operation,,, AB, -0.3 V DD +0.3 V V CANH/L Voltage on CANH and bus terminal pin V (On-orbit) Voltage on CANH and bus terminal pin V (Terrestrial) I I/O LVTTL Input/Output DC Current ma? JC Thermal resistance, junction-to-case 3 -- C/W T J Junction Temperature C T STG Storage Temperature C P 3 D V P HBM HBM Maximum package power dissipation permitted at T C =2 C Transient Overvoltage per ISO 63-3, Pulse 3A and 3B (, CANH) ESD Human Body Model per MIL-STD-3 Method 30 (, CANH) ESD Human Body Model per MIL-STD-3 Method 30 (,,,,AB) --.6 W V -- kv -- 2 kv NOTES. Stresses greater than those listed in the following table can result in permanent damage to the device. Functional operation under these conditions or at any other condition beyond those indicated in the operational sections of this standard is not implied. 2. Maximum junction temperature may be increased to + C during burn-in and life test. 3. Per MIL-STD-3, method 02., section 3.., PD=(Tj(max) - Tc(max)) /?jc - -

6 August 20 Packaging 3 Packaging Figure -lead Ceramic Flatpack (Units in mm) - 6 -

7 August 20 Ordering Information Ordering Information. UT6CAN333x CAN Transceiver UT6CAN *** * * * * Lead Finish: (A) = Hot solder dipped (C) = Gold (X) = Factory option (gold or solder) Screening: (C) = HiRel flow (- C to +2 C) (P) = Prototype flow (+2 C only) Package Type: (U) = -lead Flatpack (dual-in-line) Access Time: (-) Device Type: 3330 = Sleep 333 = Diagnostic Loopback 3332 = Auto-baud Loopback NOTES. Lead finish (A,C, or X) must be specified. 2. If an X is specified when ordering, then the part marking will match the lead finish and will be either A (solder) or C (gold). 3. Prototype flow per Aeroflex Manufacturing Flows Document. Tested at 2 C only. Lead finish is GOLD ONLY. Radiation neither tested nor guaranteed.. HiRel Temperature Range flow per Aeroflex Manufacturing Flows Document. Devices are tested at - C, room temp, and +2 C. Radiation neither tested nor guaranteed. - -

8 August 20 Ordering Information.2 UT6CAN333x SMD: XXXXX * * * * * Lead Finish: (Notes & 2) A = Solder C = Gold X = Optional Package Type: X = -lead ceramic bottom-brazed dual-in-line Flatpack Class Designator: Q = QML Class Q V = QML Class V Device Type: 0 = UT6CAN3330 w/sleep 02 = UT6CAN333 w/diagnostic Loopback 03 = UT6CAN3332 w/autobaud Loopback Total Dose: (Note 3) R = E rads(si) Drawing Number: TBD NOTES. Lead finish (A,C, or X) must be specified. 2. If an X is specified when ordering, part marking will match the lead finish and will be either A (solder) or C (gold). 3. Total dose radiation must be specified when ordering. QML Q and QML V not available without radiation hardening. For prototype inquiries, contact factory. - -

9 August 20 Ordering Information This product is controlled for export under the U.S. Department of Commerce (DoC). A license may be required prior to the export of this product from the United States. 30 Centennial Blvd Colorado Springs, CO 090 E: info-ams@aeroflex.com T: Advanced Datasheet - Product In Development Preliminary Datasheet - Shipping Prototype Datasheet - Shipping QML & Reduced Hi Rel Aeroflex Colorado Springs Inc., DBA, reserves the right to make changes to any products and services described herein at any time without notice. Consult Aeroflex or an authorized sales representative to verify that the information in this data sheet is current before using this product. Aeroflex does not assume any responsibility or liability arising out of the application or use of any product or service described herein, except as expressly agreed to in writing by Aeroflex; nor does the purchase, lease, or use of a product or service from Aeroflex convey a license under any patent rights, copyrights, trademark rights, or any other of the intellectual rights of Aeroflex or of third parties