MP7782 – 50W CLASS D MONO BRIDGED AUDIO AMPLIFIER
MP7782 Rev. 1.2
www.MonolithicPower.com
2
8/3/2005
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2005 MPS. All Rights Reserved.
TM
PACKAGE REFERENCE
NC*
FB2
FB1
AGND
NC*
EN
FB2
FB1
AGND
EN
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
PGND1
SW1
VDD1
BS1
NC*
PGND2
SW2
VDD2
BS2
NC*
TOP VIEW
* ALL NC PINS SHOULD BE GROUNDED IN LAYOUT
MP7782_PD01-TSSOP20F
EXPOSED PAD
Part Number*
Package
Temperature
MP7782DF
TSSOP20F
–40
°C to +85°C
* For Tape & Reel, add suffix –Z (eg. MP7782DF–Z)
For Lead Free, add suffix –LF (eg. MP7782DF–LF–Z)
ABSOLUTE MAXIMUM RATINGS (1)
Supply Voltage VDD...................................... 26V
BS Voltage.................. VSW – 0.3V to VSW + 6.5V
Enable Voltage VEN........................ –0.3V to +6V
VSW, VFB2, VFB1 ...........................–1V to VDD + 1V
AGND to PGND.......................... –0.3V to +0.3V
Junction Temperature...............................150
°C
Lead Temperature ....................................260
°C
Storage Temperature .............. –65
°C to +150°C
Recommended Operating Conditions
(2)
Supply Voltage VDD.......................... 9.5V to 24V
Operating Temperature TA.........–40°C to +85°C
Thermal Resistance
(3)
θJA
θJC
TSSOP20F ............................. 40 ....... 6....
°C/W
Notes:
1) Exceeding these ratings may damage the device.
2) The device is not guaranteed to function outside of its
operating conditions.
3) Measured on approximately 1” square of 1 oz copper.
ELECTRICAL CHARACTERISTICS
(VDD = 24V, VEN = 5V, TA = +25˚C, unless otherwise noted.)
Parameter
Symbol Condition
Min
Typ
Max
Units
Supply Current
Standby Current
VEN = 0V
2
10
µA
Quiescent Current
3
6
mA
Output Drivers
SW On Resistance
Sourcing and Sinking
0.18
Ω
Short Circuit Current
Sourcing and Sinking
5.0
A
Inputs
FB1, FB2
Input Common Mode Voltage Range
0
VDD/2
VDD–1.5
V
FB1, FB2
Input Current
VFB2 = VFB1 = 8V
1
5
µA
VEN Rising
1.4
2.0
V
EN Enable Threshold Voltage
VEN Falling
0.4
1.2
V
EN Enable Input Current
VEN = 5V
1
µA
Thermal Shutdown
Thermal Shutdown Trip Point
TJ Rising
150
°C
Thermal Shutdown Hysteresis
30
°C
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