MP18021
100V High Frequency
Half-Bridge Gate Driver
The Future of Analog IC Technology
DESCRIPTION
The MP18021 is a high frequency, 100V half
bridge N-channel power MOSFET driver. Its low
side and high side driver channels are
independently controlled and matched with less
than 5ns in time delay. Under voltage lock-out on
both high side and low side supplies force their
outputs low in case of insufficient supply. The
integrated bootstrap diode reduces external
component count.
FEATURES
Drives N-channel MOSFET half bridge
100V V
BST
voltage range
On-chip bootstrap diode
Typical 16ns propagation delay time
Less than 5ns gate drive matching
Drive 1nF load with 12ns/9ns rise/fall times
with 12V VDD
TTL compatible input
Less than 150A quiescent current
UVLO for both high side and low side
In SOIC8 EPAD Package
Telecom half bridge power supplies
Avionics DC-DC converters
Two-switch forward converters
Active clamp forward converters
APPLICATIONS
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of
Monolithic Power Systems, Inc.
TYPICAL APPLICATION
+12V
48V
VDD
BST
INH
PWM
CONTROLLER
DRIVE
HI
DRVH
SW
DRVL
SECONDARY
SIDE
CIRCUIT
INL
CONTROL
DRIVE
LO
MP18021
VSS
ISOLATION
AND
FEEDBACK
MP18021 Rev. 1.0
8/8/2012
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2012 MPS. All Rights Reserved.
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