MP8042 MPS, MP8042 Datasheet

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MP8042

Manufacturer Part Number
MP8042
Description
High Current, Dual Channel Power Half-bridge
Manufacturer
MPS
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MP8042DF
Manufacturer:
MPS
Quantity:
3
Part Number:
MP8042DF-LF-Z
Manufacturer:
MPS/美国芯源
Quantity:
20 000
The Future of Analog IC Technology
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
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.
EVALUATION BOARD REFERENCE
TYPICAL APPLICATION
MP8042 Rev. 0.9
9/21/2007
EV8042DF-00B
Board Number
ended
FAULT
PWM2
PWM1
SHDN
STBY
audio
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
10
amplifiers,
1
2
3
4
5
6
7
8
9
3.5”X x 4.0”Y x 1.0”Z
NC
AGND1
PWM1
STBY
PWM2
FAULT
SHDN
AGND2
NC
VDR2
Dimensions
MP8042
GND
1N4148
VDD
U1
D3
CN1
or
PGND1
PGND2
VDR1
OUT1
VDD1
VDD2
OUT2
BST1
BST2
© 2007 MPS. All Rights Reserved.
NC
driven
www.MonolithicPower.com
20
19
18
17
16
15
14
13
12
11
+
1N4148
VCC
D2
FEATURES
APPLICATIONS
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of
Monolithic Power Systems, Inc.
±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
Regulators
Motor Drivers
D6
D7
D4
D5
VCC
VCC
or
High Current, Dual Channel
Half-Bridge
Power Half-Bridge
CN2
DC-DC
OUT1
OUT2
MP8042
Switching
1

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MP8042 Summary of contents

Page 1

... The Future of Analog IC Technology 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, complementary in a bridge tied load (BTL) audio amplifier configuration. ...

Page 2

... AGND2 VDR2 10 EXPOSED PAD Part Number* Package MP8042DF TSSOP20F * For Tape & Reel, add suffix –Z (eg. MP8042DF–Z) For RoHS Compliant Packaging, add suffix –LF (eg. MP8042DF–LF–Z) ELECTRICAL CHARACTERISTICS 12V, = 5V, T DD1 DD2 SHDN Parameters VDD Operating Current ...

Page 3

... MP8042 – HIGH CURRENT, DUAL CHANNEL POWER HALF-BRIDGE ELECTRICAL CHARACTERISTICS 12V, = 5V, T DD1 DD2 SHDN Parameters OUT Switching Frequency (5) OUT Maximum Duty Cycle (4) OUT Rise/Fall Time PWM Pulse Width (4) Dead Time PWM to OUT Delay Time Rising PWM to OUT Delay Time Falling ...

Page 4

... Driver Logic Input 2. Drive PWM2 with the signal that controls the MP8042 OUT2. Drive PWM high to turn on the high-side switch; drive PWM low to turn on the low-side switch. 6 FAULT Fault Output. A low output at FAULT indicates that the MP8042 has detected an over temperature, over current condition or the voltage to the driver is less than 5V. This output is open drain. ...

Page 5

... MP8042 – HIGH CURRENT, DUAL CHANNEL POWER HALF-BRIDGE TYPICAL PERFORMANCE CHARACTERISTICS 12V, = 5V, T DD1 DD2 SHDN Short Circuit Positive Current V SW 10V/div 5A/div. V FAULT 2V/div. Input/Output Waveform Negative Pulse V OUT1 10V/div. V PWM1 2V/div. 100ns/div. Output Fall-Time V OUT1 5V/div. 5ns/div. ...

Page 6

... MP8042 – HIGH CURRENT, DUAL CHANNEL POWER HALF-BRIDGE TYPICAL PERFORMANCE CHARACTERISTICS 12V, = 5V, T DD1 DD2 SHDN Start- 10V/div. V PWM1 5V/div 5A/div. V OUT1 10V/div. 50ms/div. Standby V STBY 2V/div. V OUT1 10V/div. MP8042 Rev. 0.9 9/21/2007 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. ...

Page 7

... MP8042 – HIGH CURRENT, DUAL CHANNEL POWER HALF-BRIDGE OPERATION The MP8042 is a high voltage, dual channel power half- bridge that can be configured as the output of a Class D amplifier. The output is in phase with the input, and the dead time is optimized for symmetrical regardless of load conditions ...

Page 8

... MP8042 – HIGH CURRENT, DUAL CHANNEL POWER HALF-BRIDGE BLOCK DIAGRAM PWM1 VDD1 REGULATOR VDR1 AGND1 SHDN STBY FAULT PWM2 VDD2 REGULATOR VDR2 AGND2 MP8042 Rev. 0.9 9/21/2007 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. HIGH-SIDE DRIVER LOGIC CONTROL OVER CURRENT SENSE ...

Page 9

... MP8042 – HIGH CURRENT, DUAL CHANNEL POWER HALF-BRIDGE PACKAGE INFORMATION 0.0256(0.650)TYP 0.105 (2.67) 0.118 (3.00) pad width 0.030(0.750) PIN 1 IDENT. 0.150 (3.80) 0.030(0.750) 0.165 (4.19) pad length 0.252 (6.400) 0.260 (6.600) 0.047(1.200) max 0.007(0.190) 0.012(0.300) NOTE: 1) Control dimension is in inches. Dimension in bracket is millimeters. ...

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