The UC3178 full-bridge power amplifier is designed for demanding servo applications. It features precision current control, programmable over-current control, range control, and compensation adjust. The device operates in both 5V and 12V systems and has low saturation voltage and current protection.
The UC3178 is a full-bridge power amplifier rated for continuous output currents up to 0.45 Amperes, intended for use in demanding servo applications. It features a precision current sense amplifier that senses load current using a single series resistor and includes protection mechanisms such as current limiting and thermal shutdown.
| Continuous Output Current | 0.45 A |
|---|---|
| Supply Voltage Range | 3V to 15V |
| Quiescent Supply Current (Inhibited) | < 1.5 mA |
| Operating Junction Temperature | +150°C |
| Thermal Shutdown Temperature | 165 °C |
The typical total saturation voltage (Vsat) is 1.2V at a load current of 450mA.
The closed loop transconductance can be switched between a high and low range with a single logic input, providing a 4:1 change in gain.