TM
MP8042
High Current, Dual Channel
Power Half-Bridge
The Future of Analog IC Technology
TM
INITIAL RELEASE – SPECIFICATIONS SUBJECT TO CHANGE
DESCRIPTION
The MP8042 is a dual channel power half-
bridge that can be configured as the output
stage of a Class-D audio amplifier. Each
channel can be driven independently as stereo
single ended audio amplifiers, or driven
complementary in a bridge tied load (BTL)
audio amplifier configuration.
The MP8042 features a low current shutdown
mode, standby mode, input under voltage
protection, thermal shutdown and fault flag
signal output. Both channels of the driver
interface with standard logic signals. The
MP8042 is available in a 20-pin TSSOP (with
Exposed Pad) package.
FEATURES
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±5A Peak Current Output
Up to 600KHz Switching Frequency
Protected Integrated Power 150mΩ Switches
30ns Switch Dead Time
All Switches Current Limited
Internal Under Voltage Protection
Internal Thermal Protection
2.1mA Operating Current
Fault Output Flag
Stereo Single Ended: 20W/Channel, 4Ω Load
Bridge Tied Load Output Power: 40W, 8Ω Load
Class D Audio Drivers
Full or Half-Bridge
Regulators
Motor Drivers
APPLICATIONS
DC-DC
Switching
EVALUATION BOARD REFERENCE
Board Number
EV8042DF-00B
Dimensions
3.5”X x 4.0”Y x 1.0”Z
“MPS” and “The Future of Analog IC Technology” are Trademarks of Monolithic
Power Systems, Inc.
TYPICAL APPLICATION
VDD
+
GND
CN1
VCC
U1
1
2
3
4
5
PWM2
FAULT
6
7
8
9
10
NC
VDR1
20
19
18
17
16
15
14
13
12
11
D2
1N4148
AGND1
BST1
VCC
D5
PWM1
PWM1
PGND1
STBY
STBY
OUT1
PWM2
MP8042
VDD1
D4
CN2
OUT1
FAULT
NC
VCC
D6
OUT2
SHDN
SHDN
VDD2
AGND2
OUT2
NC
PGND2
D7
VDR2
BST2
D3
1N4148
MP8042 Rev. 0.9
5/23/2006
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2006 MPS. All Rights Reserved.
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