BTS 781 GP is part of the TrilithIC family, which contains a double high-side switch and two low-side switches. It can be configured as a bridge or quad-switch and is optimized for DC motor management applications. Its features include low RDS ON, maximum peak current, very low quiescent current, small outline, thermal optimized PowerPak, status flag for over temperature, open load detection, etc.
The BTS 781 GP is a TrilithIC quad‑switch device that integrates one double high‑side switch and two low‑side switches in a single TO‑263‑15 package. It offers configurable bridge or quad‑switch operation, low on‑resistance (26 mΩ high‑side, 14 mΩ low‑side) and is optimized for DC motor management.
The datasheet details pin configuration, functional block diagram, circuit description, electrical characteristics, and package dimensions, providing designers with the necessary information for implementation and protection features such as short‑circuit, over‑temperature, undervoltage lockout, and open‑load detection.
| Maximum peak current | typ. 42 A @ 25 °C |
|---|---|
| Low‑side Rds(on) | 14 mΩ (typical @ 25 °C) |
| High‑side Rds(on) | 26 mΩ (typical @ 25 °C) |
| Quiescent current | typ. 4 µA @ 25 °C |
| Operating voltage range | Up to 40 V |
The device can handle a typical peak current of 42 A at 25 °C.
The high‑side switch has an on‑resistance of about 26 mΩ, while each low‑side switch is about 14 mΩ (typical at 25 °C).
The quiescent current is typically 4 µA at 25 °C.