DESCRIPTION

· The A2557 is designed for cost-effective relay-driving applications with up to 300 mA drive current per channel.
· It can also drive incandescent lamps where turn-on time is not critical.
· Features include a low-power Sleep Mode, overcurrent protection, and fault-detection circuitry.
· The device supports supply voltages up to 32 V and has a minimum breakdown voltage of 60 V.
· It includes integral output flyback/clamp diodes and is compatible with TTL and 5 V CMOS inputs.

FEATURES

· 300 mA output current per channel.
· Independent overcurrent protection and thermal limiting for each driver.
· Output voltage up to 60 V with SOA protection.
· Fault-detection circuitry for open or shorted load conditions.
· Low quiescent current Sleep Mode reduces supply current to below 100 μA.
· Integral output flyback/clamp diodes enhance reliability.

APPLICATIONS

· Relay-driving applications requiring up to 300 mA per channel.
· Driving incandescent lamps in non-time-critical applications.
· Systems requiring fault detection and overcurrent protection.
· Low-power applications utilizing Sleep Mode for energy efficiency.