SA5777A Overview
The SA5777A is a monolithic driver for controlling air-core (or differential) meters typically used in automotive instrument cluster applications. The circuit interfaces with a microprocessor through a serial bus and directly drives the air-core meter. The SA5777A has 10-bit resolution (0.35 degree) and is guaranteed to be monotonic.
SA5777A Key Features
- 10-Bit resolution (0.35 degrees)
- Exceptional accuracy (0.5 degrees, typical)
- High-torque capability
- Active differential drivers eliminate back-EMF issues
- No RFI/EMI generation issues
- Simple serial interface
- Simple cascading capability for multiple meters
- Internal fault protection
- Only one external ponent required (bypass capacitor)
- Instrumentation utilizing air-core meters