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MPS
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MP8048 Datasheet Preview

MP8048 Datasheet

4A Quad Channel Power Half-Bridge

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MP8048 pdf
The Future of Analog IC Technology
MP8048
22V, 4A Quad Channel Power Half-Bridge
DESCRIPTION
The MP8048 is a configurable dual channel full-
bridge or quad channel half-bridge that can be
configured as the output stage of a Class-D
audio amplifier. Each full-bridge can be driven
independently as stereo single ended audio
amplifiers or driven complementary in a bridge
tied load (BTL) audio amplifier configuration.
The MP8048 features a low current shutdown
mode, standby mode, input under voltage
protection, current limit, thermal shutdown and
fault flag signal output. All channels of drivers
interface with standard logic signals.
The MP8048 is available in a 40 lead QFN 6X6
package.
FEATURES
4A Peak Current Output
Up to 600KHz Switching Frequency
Protected Integrated Power 0.2Switches
30ns Switch Dead Time
All Switches Current Limited
Internal Under Voltage Protection
Internal Thermal Protection
3.4mA Operating Current
Fault Output Flag
Single Ended Output Power: 8W/Channel at 22V,
8
Bridge Tied Load Output Power: 30W/Channel
at 22V, 8
APPLICATIONS
Class D Audio Drivers
Motor Drivers
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of
Monolithic Power Systems, Inc.
TYPICAL APPLICATION
VDD
C1
1000uF
35V
C2
1uF
C5
0.1uF
U1
PWM1A
PWM1B
FAULT
SHDN
PWM2A
STBY
PWM2B
BST1A
PWM1A
PWM1B
FAULTB
SHDNB
AGND
PWM2A
STBYB
PWM2B
BST2B
MP8048
PGND1B
PGND1B
BST1B
VDR1B
VDR1A
AGND
VDR2B
VDR2A
BST2A
PGND2A
C11
0.1uF
VDD
C15
1000uF
35V
C16
1uF
C6
0.1uF
L1
D1 22uH
L2
D4 22uH
CN1
C3
0.22uF
C4
0.47uF
OUT1A
OUT1B
C7
0.22uF
C13
0.1uF
C9
0.1uF
C8
0.1uF
L3
D6 22uH
L4
D8 22uH
CN2
C10
0.22uF
C12
0.47uF
OUT2A
C14
0.22uF
OUT2B
M8048 Rev. 1.1
9/10/2009
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2009 MPS. All Rights Reserved.
1



MPS
MPS

MP8048 Datasheet Preview

MP8048 Datasheet

4A Quad Channel Power Half-Bridge

No Preview Available !

MP8048 pdf
MP8048 - 22V, 4A QUAD CHANNEL POWER HALF-BRIDGE
Part Number*
MP8048DQK
ORDERING INFORMATION
Package
QFN 40 (6mm x 6mm)
Top Marking
MP8048DQK
Temperature
–40°C to +85°C
* For Tape & Reel, add suffix –Z (e.g. MP8048DQK–Z). For Lead Free, add suffix –LF
(e.g. MP8048DQK–LF–Z)
PACKAGE REFERENCE
N/C 1
SW1B 2
SW1B 3
VSP1B 4
VSP1B 5
VSP1A 6
SW1A 7
SW1A 8
PGND1A 9
PGND1A 10
30 PGND2A
29 SW2A
28 SW2A
27 VSP2A
26 VSP2A
25 VSP2B
24 SW2B
23 SW2B
22 PGND2B
21 PGND2B
ABSOLUTE MAXIMUM RATINGS (1)
VSP Supply Voltage .................................... 24V
SW1/2 Pin Voltage.............. –0.3V to VDD + 0.3V
SW1/2 to BST1/2 ...........................–0.3V to +6V
Voltage at All Other Pins................–0.3V to +6V
Continuous Power Dissipation.. (TA = +25°C) (2)
………………………………………….… ...4.2W
Storage Temperature.............. –55°C to +150°C
Junction Temperature.............................150°C
Lead Temperature .................................260°C
Recommended Operating Conditions (3)
VSP Supply Voltage ........................7.5V to 22V
Peak Output Current ......................4A Maximum
Operating Temperature............. –40°C to +85°C
Thermal Resistance (4) θJA θJC
QFN40 (6mm x 6mm) ............. 30 ....... 6.... °C/W
Notes:
1) Exceeding these ratings may damage the device.
2) The maximum allowable power dissipation is a function of
the maximum junction temperature TJ (MAX), the junction-to-
ambient thermal resistance θJA, and the ambient temperature
TA. The maximum allowable continuous power dissipation at
any ambient temperature is calculated by PD (MAX) = (TJ
(MAX)-TA)/θJA. Exceeding the maximum allowable power
dissipation will cause excessive die temperature, and the
regulator will go into thermal shutdown. Internal thermal
shutdown circuitry protects the device from permanent
damage.
3) The device is not guaranteed to function outside of its
operating conditions.
4) Measured on JESD51-7, 4-layer PCB.
M8048 Rev. 1.1
9/10/2009
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2009 MPS. All Rights Reserved.
2


Part Number MP8048
Description 4A Quad Channel Power Half-Bridge
Maker MPS
Total Page 10 Pages
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