A2550 Description
Large numbers of relay-based applications require the use of a microprocessor which implements plex system control. In these systems, there is the need for microprocessor logic supply voltage, power-on reset circuitry, and watchdog capabilities. The Allegro™ A2550 bines the functions of voltage regulator, watchdog, and reset, as well as three low-side DMOS relay driver outputs.
A2550 Key Features
- Three independent low-side DMOS output drivers
- Short-circuit protection of drivers
- Eliminates need for flyback diodes on relays
- Thermal shutdown
- Separate precision 5 V regulator (2%)
- Current clamp on 5 V regulator
- 16-pin TSSOP package with exposed thermal pad
- Programmable reset (NPOR) delay time
- Programmable watchdog
- Automotive voltage and temperature ranges