The document introduces the features of BTS 771 G, including but not limited to: Quad switch driver, Free configurable as bridge or quad-switch, Optimized for DC motor management applications, Ultra low RDS ON @ 25 °C: High-side switch: typ. 85 mΩ, 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
The BTS771G is a quad switch driver from TrilithIC that can be configured as a bridge or a four‑switch topology. It is optimized for DC motor management and features ultra‑low on‑resistance (high‑side typical 85 mΩ, low‑side typical 40 mΩ) and high peak current capability.
Key features include load and GND short‑circuit protection, over‑temperature shutdown with hysteresis, short‑circuit and open‑load detection, and over/under‑voltage protection. The device is supplied in a P‑DSO‑28‑9 package and supports both H‑bridge and other switch configurations with optional current‑sense resistors.
| Supply voltage (VS) | 0.3 V – 43 V |
|---|---|
| High‑side switch RDS(on) (typical) | 85 mΩ |
| Low‑side switch RDS(on) (typical) | 40 mΩ |
| HS‑drain current (IDHS) | 10 A (internally limited) |
| Input voltage range (VGH) | 0.3 V – 15 V |
| Junction temperature range (Tj) | 40 °C – 150 °C |
The high‑side switch has a typical on‑resistance of 85 mΩ.
It includes load and GND short‑circuit protection, over‑temperature shutdown with hysteresis, short‑circuit detection, open‑load detection, and over/under‑voltage detection.
The device can be used in an H‑Bridge configuration or any other switch configuration, with optional current‑sense resistors.
The chip operates up to 40 V (absolute maximum rating 43 V).