MPQ1925

100V, 4A, High-Frequency,

Half-Bridge Gate Driver

MPQ1925 Rev. 1.0

MonolithicPower.com

1

3/8/2022

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© 2022 MPS. All Rights Reserved.

DESCRIPTION

The MPQ1925 is a high-frequency, N-channel

MOSFET, half-bridge gate driver.

The device’s

low-side MOSFET (LS-FET) and high-side

MOSFET

(HS-FET)

driver

channels

are

independently controlled, and are matched with

less than 5ns in time delay. In the case of an

insufficient supply, the

device’s HS-FET and

LS-FET

under-voltage

lockout

(UVLO)

protection

forces

the

outputs

low.

The

MPQ1925 also features an integrated bootstrap

(BST) diode to reduce the external component

count.

The

MPQ1925

is

available

in

a

QFN-8

(4mmx4mm) package.

FEATURES

• Drives an N-Channel MOSFET Half-Bridge

• 115V Bootstrap Voltage (V

BST) Range

• On-Chip Bootstrap (BST) Diode

• Typical 20ns Propagation Delay

• <5ns Gate Driver Matching Time

• Drives a 2.2nF Load with a 15ns Rise Time

and 10ns Fall Time at 12V VDD

• Transistor-to-Transistor Logic (TTL)-

Compatible Input

• <150µA Quiescent Current (I

Q)

• High-Side MOSFET (HS-FET) and Low-

Side MOSFET (LS-FET) Under-Voltage

Lockout (UVLO) Protection

• Available in a QFN-8 (4mmx4mm) Package

APPLICATIONS

• Motor Drivers

• Telecommunication Half-Bridge Power

Supplies

• Avionics DC/DC Converters

• Two-Switch Forward 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

M

V

DD

DRVH

DRVL

SW

BST

VSS

VSS

VDD

VDD

DRVH

DRVL

SW

BST

INH

INL

INH

INL

MOTOR

DRIVER

12V