2557 Datasheet - Allegro

2557 PROTECTED QUAD LOW-SIDE DRIVER

AND APPLICATION The A2557 low-current quad power drivers provide the same protected output driver function as (and are pin compatible with) the UDx2543/49/59 devices, combined with a fault diagnostic scheme similar to the UDx2547, plus an automatic low-current Sleep-Mode function. These devices mon.

Data Sheet 29317.16E 2557 PROTECTED QUAD LOW-SIDE DRIVER WITH FAULT DETECTION & SLEEP MODE A2557xLB OUT1 1 K2 OUT2 3 GROUND 4 GROUND 5 OUT3 6 FAULT 7 OUT4 8 16 IN1 15 IN2 14 ENABLE 13 GROUND 12 GROUND 11 V CC 10 IN 3 9 IN 4 Dwg. PP-017-4 Note that the A2557xB (DIP) and the A2557xLB (SOIC) are electrically identical and share a common terminal number assignment. ABSOLUTE MAXIMUM RATINGS Output Voltage, VO 60 V Over-Current Protected Output Voltage, VO 32 V Output Current, IO 500 mA .

2557 Features

* I 300 mA Output Current per Channel I Independent Over-Current Protection &Thermal Limiting for Each Driver I Output Voltage to 60 V I Output SOA Protection I Fault-Detection Circuitry for Open or Shorted Load I Low Quiescent Current Sleep Mode I Integral Output Flyback/Clamp Diodes I TTL- and 5 V C

2557-Allegro.pdf