Application Note, Rev. 1.1, March 2008 BTS 3160D How to use the Demoboard Automotive Power Demoboard BTS 3160D Abstract 1 Abstract This Application Note is intended to provide a fast start with the BTS 3160D Demoboard. In normal application usage the BTS 3160D is designed to interact with some kind of µC, therefore it is a little bit effort to set up a circuit in the lab. To minimize this effort we supply You with the BTS 3160D Demoboard. 2 Introduction The BTS 3160 Demoboard is a small PCB (7 cm × 8 cm) where a engineering sample is already mounted with a 6 cm2 copper cooling area. LEDs show the device status. All device pins can be directly accessed and a jumper disconnects the attached logic from the device to avoid interferences for customer measurements. 3 Circuit Description Out of the application circuit from Figure 1 the Demoboard was developed. L1 R1 L2 R2 ECU / PCB VS LDO GND V S BTS3160D V bb Logic VS I/O IN/Fault µC GND I/O Supply2.emf Figure 1 Typical Application Circuit It was assumed that You want to see the device Status immediately and might also use the Status signal for diagnosis purposes. We did not implement a µC to give You still direct access to the device IN pin. Application Note Rev. 1.1, 2008-03-03 Demoboard BTS 3160D Circuit Description As the Demoboard will be used for evaluation we also implemented a easy way (jumper) to access the device without additional components on the IN path. 3.1 Demoboard Circuit The Demoboard is using two XOR and LEDs to give a feedback of the device status. A LDO voltage regulator TLE 4295 is used to supply the two XOR logic devices and the LEDs. The Capacitors C1 and C2 are needed to stabilize the 5 V-Regulator. C1 is also used to stabilize VS. The voltage on the VS pin must not reach undervoltage lockout during operation. The voltage on the IN pin together with R1 is used to feedback the status of BTS 3160D. By removing the Jumper J1 the IN pin is separated from the logic circuit and can be directly accessed from the measurement point called “Status”. In this case the signal on the IN connector will not reach the BTS 3160D anymore and also there will be no output on the STATUS connector of the PCB. Vbat Vbat C1 Load STATUS VS IN BTS3160D R1 Logic IN/Fault TLE4295 5V D1 D2 C2 GND Figure 2 Demoboard Circuitry Application Note 3 Rev. 1.1, 2008-03-03 Demoboard BTS 3160D Additional Information 3.2 Bill of Material The following Table 1 is showing the important parts on the Demoboard and the values used in partitioning. Table 1 Extract of Bill of Material Part Number Value Functional Description R1 C1 C2 3k3 used to generate digital status feedback 100 n (100 V) stabilize Vbat 2u2 needed for 5 V-regulator D1 LED Green OK active if no fault and device is switched on D2 LED Red FAILURE active if device is switched on and fault occurred 4 Additional Information This description should be a help to get the Demoboard working. For device behaviour please refer to the data sheet. Application Note 4 Rev. 1.1, 2008-03-03 Demoboard BTS 3160D Revision History 5 Revision History BTS 3160D Revision History: 2008-03-03 Previous Version: 2006-03-02 grey version of BTS3160D Page Rev. 1.1 Subjects (major changes since last revision) no changes in description on grren & robust logo added Application Note 5 Rev. 1.1, 2008-03-03 Edition 2008-03-03 Published by Infineon Technologies AG 81726 München, Germany © Infineon Technologies AG 2008. All Rights Reserved. LEGAL DISCLAIMER THE INFORMATION GIVEN IN THIS APPLICATION NOTE IS GIVEN AS A HINT FOR THE IMPLEMENTATION OF THE INFINEON TECHNOLOGIES COMPONENT ONLY AND SHALL NOT BE REGARDED AS ANY DESCRIPTION OR WARRANTY OF A CERTAIN FUNCTIONALITY, CONDITION OR QUALITY OF THE INFINEON TECHNOLOGIES COMPONENT. THE RECIPIENT OF THIS APPLICATION NOTE MUST VERIFY ANY FUNCTION DESCRIBED HEREIN IN THE REAL APPLICATION. INFINEON TECHNOLOGIES HEREBY DISCLAIMS ANY AND ALL WARRANTIES AND LIABILITIES OF ANY KIND (INCLUDING WITHOUT LIMITATION WARRANTIES OF NON-INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OF ANY THIRD PARTY) WITH RESPECT TO ANY AND ALL INFORMATION GIVEN IN THIS APPLICATION NOTE. Information For further information on technology, delivery terms and conditions and prices please contact your nearest Infineon Technologies Office (www.infineon.com). Warnings Due to technical requirements components may contain dangerous substances. For information on the types in question please contact your nearest Infineon Technologies Office. Infineon Technologies Components may only be used in life-support devices or systems with the express written approval of Infineon Technologies, if a failure of such components can reasonably be expected to cause the failure of that life-support device or system, or to affect the safety or effectiveness of that device or system. Life support devices or systems are intended to be implanted in the human body, or to support and/or maintain and sustain and/or protect human life. If they fail, it is reasonable to assume that the health of the user or other persons may be endangered. w w w . i n f i n e o n . c o m Published by Infineon Technologies AG