MP1909

30V, 2.2MHz, 2A Half-Bridge

Gate Driver in SOT583 Package

MP1909 Rev. 1.0

www.MonolithicPower.com

1

7/10/2020

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© 2020 MPS. All Rights Reserved.

DESCRIPTION

The MP1909 is a high-frequency, 30V, half-

bridge, N-channel power MOSFET driver. Its

low-side and high-side driver channels are

controlled by a signal input. Internal adaptive

dead time control circuitry reduces the switching

power loss and prevents shoot-through.

Both outputs are disabled when the EN pin is

pulled low. The integrated bootstrap diode

reduces external component count. Under-

voltage lockout (UVLO) functionality protects the

IC from operating at insufficient power supplies.

Thermal shutdown protection functions can

protect the IC from over-temperature conditions.

FEATURES

 Drives N-Channel MOSFET Half-Bridge

 Up to 50V V

BST Voltage

 4.5V to 12V Gate Drive Voltage

 On-Chip Bootstrap Diode

 Up to 2.2MHz Switching Frequency

 One PWM Signal Generates Both Drives

 Low Quiescent Current

 100% Duty Support

 UVLO for High-Side and Low-Side Gate

Drives

 Available in an 8-Pin SOT583

(1.6mmx2.1mm) Package

APPLICATIONS

 Electronic Cigarettes

 Wireless Charging

 Drones

 Avionics DC/DC Converters

 Active-Clamp Forward Converters

All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive.

For MPS green status, please visit the MPS website under Quality

Assurance. “MPS”, the MPS logo, and “Simple, Easy Solutions” are

trademarks of Monolithic Power Systems, Inc. or its subsidiaries.

TYPICAL APPLICATION

MP1909

BST

DRVH

SW

DRVL

GND

PWM

VCC

EN

VIN

VOUT

VCC

C1

1µF

C2

1µF

C3

22µF

Q1

Q2

L1

C4

47µF

L1

R1

4.7

Ω