ACS761ELF-20B Description
The ACS761 bines Allegro™ Hall-effect current sense technology with a hot-swap controller resulting in a more efficient integrated controller for 12 V applications. By eliminating the need for a shunt resistor, the I2R losses in the power path are reduced. When the ACS761 is externally enabled, and the voltage rail is above the internal UVLO threshold, the internal charge pump drives the gate of the external FET.
ACS761ELF-20B Key Features
- Hall-effect current monitor-no external sense resistor required
- PGOOD and ¯P¯¯G¯¯¯O¯¯O¯¯¯D¯ indication
- Analog output voltage (factory trimmed for gain and offset)
- External high-side FET gate drive
- 240V-A power fault protection with user-selectable delay
- Overcurrent fault protection with user-selectable delay
- Fault protection isolates failed supply from output in < 2 μs
- 1.5 mΩ internal conductor resistance
- Active low latched Fault indicator output signal
- User controlled soft start / hot-swap function