A3935 Description
TheA3935 is designed specifically for automotive applications that require high-power motors. Each provides six high-current gate drive outputs capable of driving a wide range of N-channel power MOSFETs. A requirement of automotive systems is steady operation over a varying battery input range.
A3935 Key Features
- Drives wide range of N-channel MOSFETs in 3-phase bridges
- PFM boost converter for use with low-voltage battery supplies
- Internal LDO regulator for gate-driver supply
- Bootstrap circuits for high-side gate drivers
- Current monitor output
- Adjustable battery overvoltage detection
- Diagnostic outputs
- Motor lead short-to-battery, short-to-ground, and bridge
- Undervoltage protection
- 40°C to 150°C TJ operation
A3935 Applications
- Drives wide range of N-channel MOSFETs in 3-phase bridges
- PFM boost converter for use with low-voltage battery supplies
- Internal LDO regulator for gate-driver supply
- Bootstrap circuits for high-side gate drivers