The bootstrap voltage regulator is optimized for gate charges up to 500 nC per FET at 20 kHz PWM. The trickle charge pump allows 100% pulse width modulation (PWM) operation despite the use of bootstrap capacitors.
FULL BRIDGE MOSFET DRIVER DRIVERS
The high side gate drivers are supplied via bootstrap circuits. This device is able to control four external N-FETs for full H-bridge control in the supply range from 4.5 volt to 28 volt, by means of the integrated charge pump. Very small footprint: 28-pin TSSOP with exposed pad.Sleep mode with low quiescent current (Wide supply voltage operating range: V.AEC-Q100 grade 1 qualification (TJ=150˚C).Diagnostics settings (VDS level, masking time.Hardware protection settings (auto-shutdown).Programmable current sense amplifier gain: 8 to 48.Low offset, low drift, high bandwidth current sense amplifierįault interrupt and feedback to microcontrollerĮxternal FET drain-source VDS and gate-source VGS voltage monitoring
Optional charge pump for low supply voltage operationĬharge pump configuration provides N-FET reverse polarity driveĬompatible with 3 V and 5 V microcontroller IO Read more Top featuresĬonverts 2 or 4 PWM inputs from a microcontroller to drive 4 external N-FETs
For sensorless BLDC applications see also our embedded-MCU BLDC controllers MLX8120x family. This device is used to drive brushed DC motors in combination with a microcontroller and four discrete power N-FETs.įor brushless (BL)DC applications see also the MLX83203 of the same pre-driver family. The MLX83100 is a two-phase pre-driver (also called bridge driver or gate driver) IC with integrated current sense amplifier.