A4910 Overview
The A4910 is a three-phase controller for use with N-channel external power MOSFETs and is specifically designed for automotive applications. A unique charge-pump regulator provides full (>10 V) gate drive for battery voltages down to 7 V, and allows the A4910 to operate with a reduced gate drive down to 5.5 V. A bootstrap capacitor is used to provide the above battery supply voltage required for N-channel MOSFETs.
A4910 Key Features
- High-current 3-phase gate drive for N-channel MOSFETs
- 3-phase current sense amplifiers
- SPI-patible serial or direct parallel control
- Cross-conduction protection
- Programmable dead time
- Top-off charge pump for 100% PWM
- Unmitted buffer amplifier
- 5.5 to 50 V supply voltage range
- CMOS inputs, 3.3 to 5 V logic supply
- Extensive diagnostics output