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SIEMENS BTS 771 G User Guide and Manual

Summary

This integrated quad switch driver provides a highly efficient solution with built-in H-Bridge functionality for demanding DC motor control applications. Featuring ultra-low on-resistance, the device reduces power dissipation while offering sophisticated protection against overtemperature, short circuits, and open loads. This technical manual serves as a comprehensive resource detailing pin definitions, block diagrams, application circuits, and functional specifications. It is intended for electrical engineers and hardware designers working in advanced automotive and industrial control systems who require reliable, high-performance switching components.

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Page 1 Text Content

Trilith IC BTS

Overview

Features Quad switch driver Free configurable as bridge or quad-switch Optimized for DC motor management applications

Ultra low RDS °C: ON @

High-side switch: typ. 85 mΩ, P-DSO-28-9 Low-side switch: typ. 40 mΩ Very high peak current capability Very low quiescent current Space- and thermal optimized power P-DSO-Package Load and GND-short-circuit-protected Operates up to 40 V Status flag diagnosis Overtemperature shut down with hysteresis Short-circuit detection and diagnosis Open-load detection and diagnosis C-MOS compatible inputs Internal clamp diodes Isolated sources for external current sensing Over- and under-voltage detection with hysteresis

Type Ordering Code Package BTS Q67007-A9274 P-DSO-28-9

Description The BTS G is a Trilith IC contains one double high-side switch and two low-side switches in one P-DSO-28-9 -Package.

“Silicon instead of heatsink” becomes true

The ultra low RDS

ON of this device avoids powerdissipation. It saves costs in mechanical

construction and mounting and increases the efficiency. The high-side switches are produced in the SIEMENS SMART SIPMOS® technology. It is fully protected and contains the signal conditioning circuitry for diagnosis. (The comparable standard high-side product is the BTS 621L1.)

Semiconductor Group 1999-01-07

Page Summary Contents For SIEMENS BTS 771 G User Guide and Manual

Page 1 Trilith IC BTS Overview Features Quad switch driver Free configurable as bridge or quad-switch Optimized for DC motor management applications Ultra low RDS °C: ON @ High-side switch: typ. 85 mΩ, P-DS...
Page 2 For minimized RDS SIEMENS Millifet ON the two low-side switches are produced in the logic level technology (The comparable standard product is the BUZ 103AL). Each drain of these three chips is mounte...
Page 3 DL1 DL1 GL1 SL1 DL1 SL1 LS-Lead Frame 1 N.C. DL1 DHVS DHVS GND SH1 GH1 SH1 HS-Lead Frame ST SH2 GH2 SH2 DHVS DHVS N.C. DL2 DL2 LS-Lead Frame 2 SL2 GL2 SL2 DL2 DL2 AEP02071 Figure 1 Pin Configuration (...
Page 4 Pin Definitions and Functions Pin No. Symbol Function 1, 3, 25, 28 DL1 Drain of low-side switch1 Leadframe 1 GL1 Gate of low-side switch1 N.C. not connected 5, 10, 19, 24 DHVS Drain of high-side switc...
Page 5 Diagnosis Biasing and Protection Driver GH1 IN OUT LL00 2120, GH2 LH01 Ωk3.5 HH11 DI2 DL2 C6V1 22, SH1 25, 283,1, DL1 SL1 SL2 AEB02072 Figure 2 Block Diagram Semiconductor Group 1999-01-07
Page 6 Circuit Description Input Circuit The control inputs GH1,2 consist of TTL/CMOS compatible Schmitt-Triggers with hysteresis. Buffer amplifiers are driven by these stages and convert the logic signal in...
Page 7 Overvoltage-Lockout (OVLO) When VS reaches the switch-off voltage VOVOFF the High-Side output transistors are switched off with a hysteresis. The IC becomes active if the supply voltage VS drops below...
Page 8 Truthtable and Diagnosis (valid only for the High-Side-Switches) Flag GH1 GH2 SH1 SH2 ST Remarks Inputs Outputs stand-by mode Normal operation; switch2 active identical with functional truth table swi...
Page 9 Electrical Characteristics Absolute Maximum Ratings – 40 °C < Tj < 150 °C Parameter Symbol Limit Values Unit Remarks min. max. High-Side-Switches (Pins DHVS, GH1,2 and SH1,2) Supply voltage VS –...
Page 10 Operating Range Parameter Symbol Limit Values Unit Remarks min. max. Supply voltage VS VUVOFF After VS rising above VUVON Input voltages VGH – 0.3 Input voltages VGL – 9 Output current IST m A HS-junc...
Page 11 Electrical Characteristics ISH1 = ISH2 = ISL1 = ISL2 = 0 A; – 40 °C < Tj < 150 °C; 8 V > VS > 18 V unless otherwise specified Parameter Symbol Limit Values Unit Test Condition min. typ. ma...
Page 12 Electrical Characteristics (cont’d) ISH1 = ISH2 = ISL1 = ISL2 = 0 A; – 40 °C < Tj < 150 °C; 8 V > VS > 18 V unless otherwise specified Parameter Symbol Limit Values Unit Test Condition min...
Page 13 Electrical Characteristics (cont’d) ISH1 = ISH2 = ISL1 = ISL2 = 0 A; – 40 °C < Tj < 150 °C; 8 V > VS > 18 V unless otherwise specified Parameter Symbol Limit Values Unit Test Condition min...
Page 14 Electrical Characteristics (cont’d) ISH1 = ISH2 = ISL1 = ISL2 = 0 A; – 40 °C < Tj < 150 °C; 8 V > VS > 18 V unless otherwise specified Parameter Symbol Limit Values Unit Test Condition min...
Page 15 CS CL FH1, 470n F F100 ST, STLKΙ ST 5, 10, 19, 24 Diagnosis Biasing and Protection VDSH1 DSH2V FH1V--VFH2 Driver GH1 I1R 7GH1 IN OUT VSTL DI1 LL00 O2R SH2Ι C6V1 SH2 RI2 HL10 GH2Ι VUVON GH2 10 kΩ Ω10 k...
Page 16 Watchdog Reset TLE 4268G RQ CQ CD CS WD DHVS ST 5, 10, 19, 24 Diagnosis Biasing and Protection Driver IN OUT LL00 O2R C6V1 SH2 RI2 HL10 GH2 Ωk10 Ω3.5 k 12, 14, 15, 18 DL2 22, 23 SH1 M1 1, 3, DL1 25, 2...
Page 17 Package Outlines P-DSO-28-9 (Plastic Dual Small Outline Package) 2. ax Index Marking 1) Does not include plastic or metal protrusions of 0.15 max rer side 8˚ ax 2) Does not include dambar protrusion o...

Manual Details

Brand Siemens
Pages 17
File Size 110.70 KB
Published June 02, 2026
61 views

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Frequently Asked Questions

What applications is the BTS 771 G suitable for?

It is suited for a wide range of automotive and industrial applications, including H-Bridge configurations.

How do I reset the device using the watchdog timer?

Apply a 12V signal to inputs QDO1 and QDO2 on the Watchdog Reset circuit.

What safety features does the BTS 771 G offer?

It provides short-circuit protection, overtemperature shutdown with hysteresis, open-load detection, and overload protection for high-side switches.

Is it possible to add external current sensing?

Yes, the device includes isolated sources for external current sensing by allowing the addition of current sense resistors.