TM
MP8040
High Current
Integrated Half Bridge + Driver
The Future of Analog IC Technology
TM
DESCRIPTION
The MP8040 is a general purpose, high
frequency half bridge power driver capable of
driving a 9A load. The devices integrates both
top and bottom N-Channel MOSFET power
switches and is fully protected from both
sourcing and sinking current by a preset
cycle-by-cycle current limit. It has a wide input
voltage range from 7.5V to 25V.
The MP8040 features a low-current shutdown
mode, input under-voltage protection, thermal
shutdown, and fault flag signal output. It
interfaces with standard logic signals and is
available in a small 8-pin SOIC with exposed
pad package.
FEATURES
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±9A Peak Current Output
±4.25A Continuous Current Output
Up to 1.2MHz Switching Frequency
Protected Integrated Power 100mΩ Switches
All Switches Current Limited
Integrated Under-Voltage Protection
Integrated Thermal Protection
2.5µA Standby Mode
True 2-Quadrant Operation
Sources and Sinks Current
Fault Indicator Output
Class D Audio Driver
o
25W/4Ω/10% Output Power Single Ended
o
70W/4Ω/10% Output Power Full Bridge
Full or Half Bridge DC-DC Switching Regulator
Motor Driver
APPLICATIONS
EVALUATION BOARD REFERENCE
Board Number
EV0041
Dimensions
3.5”X x 3.5”Y x 1.2”Z
“MPS” and “The Future of Analog IC Technology” are Trademarks of
Monolithic Power Systems, Inc.
TYPICAL APPLICATION
V
SP
2
7
SP
DRV
+
FAULT
ENABLE
PWM
SIGNAL
8
6
1
FLT
SHDN
PWM
MP8040
BS
SW
5
3
47nF
V
OUT
GND
4
MP8040_TAC_S01
MP8040 Rev. 1.5
5/3/2005
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2005 MPS. All Rights Reserved.
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