A3941KLPTR-T
数据手册.pdf
Allegro MicroSystems
急速微电子
主动器件
A3941KLPTR-T 编带
The is a full bridge MOSFET driver in 28 pin TSSOP package. This is a full bridge controller for use with external N channel power MOSFETs. A unique charge pump regulator provides full gate drive greater than 10V for battery voltages down to 7V and allows the A3941 to operate with reduced gate drive down to 5.5V. A bootstrap capacitor is used to provide above battery supply voltage required for N channel MOSFETs. An internal charge pump for high side drive allows DC 100% duty cycle operation. Integrated diagnostics provide indication of undervoltage, overtemperature, power bridge faults and can be configured to protect power MOSFETs under most short circuit conditions.
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- High side or low side PWM switching
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- Charge pump for low supply voltage operation
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- Top off charge pump for 100% PWM
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- Cross conduction protection with adjustable dead time
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- Supply voltage range from 5.5V to 50V
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- 90ns turn off propagation delay
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- 90ns turn on propagation delay
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- Diagnostics output
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- Low current sleep mode
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- Operating temperature range from -40°C to 150°C