A4940
A4940 is Automotive Full Bridge MOSFET Driver manufactured by Allegro MicroSystems.
A4940 Automotive Full-Bridge MOSFET Driver
Features
AND BENEFITS
- High-current gate drive for N-channel MOSFET full bridge
- Independent control of each MOSFET
- Charge pump for low supply voltage operation
- Cross-conduction protection with adjustable dead time
- 5.5 to 50 V supply voltage range
- Diagnostics output
- Low current sleep mode
PACKAGE: 24-pin TSSOP with exposed thermal pad (suffix LP)
Not to scale
DESCRIPTION
The A4940 is a full-bridge controller for use with external N-channel power MOSFETs and is specifically designed for automotive applications with high-power inductive loads such as brush DC motors.
A unique charge pump regulator provides full ( >10 V ) gate drive for...
