MP7731 – 5W – 30W CLASS D MONO BRIDGED AUDIO AMPLIFIER
PACKAGE REFERENCE
ABSOLUTE MAXIMUM RATINGS
(1)
Supply Voltage V
DD
............................................. 26V
BS Voltage ............................ V
SW
-0.3V to V
SW
+6.5V
Enable Voltage V
EN
................................. -0.3V to 6V
V
SW
, V
PIN
, V
NIN
..................................... -1V to V
DD
+1V
AGND to PGND................................... -0.3V to 0.3V
Junction Temperature......................................150˚C
Lead Temperature ...........................................260˚C
Storage Temperature ....................... -65˚C to 150˚C
NC
PIN1
NIN1
AGND1
NC
EN1
NIN2
PIN2
AGND2
EN2
1
2
3
4
5
6
7
8
9
10
20
19
18
17
PGND1
SW1
VDD1
BS1
NC
PGND2
SW2
VDD2
BS2
NC
MP7731
16
15
14
13
12
11
Recommended Operating Conditions
(2)
Supply Voltage V
DD
................................ 9.5V to 18V
Operating Temperature T
A
................. -40˚C to 85˚C
Thermal Resistance
(3)
TSSOP20 ............................... 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.
θ
JA
θ
JC
EXPOSED PAD
Part Number*
MP7731DF
*
Package
TSSOP20
Temperature
–40°C to +85°C
For Tape & Reel, add suffix –Z (eg. MP7731DF–Z)
For RoHS compliant packaging, add suffix –LF (eg.
MP7731DF–LF–Z)
ELECTRICAL CHARACTERISTICS
(4)
V
DD
= 16.5V, V
EN
= 5V, R
L
= 4Ω, T
A
= +25°C, unless otherwise noted.
Parameter
Standby Current
Quiescent Current
SW On Resistance
Short Circuit Current
PIN, NIN Input Common Mode
Voltage Range
PIN, NIN Input Current
EN Enable Threshold Voltage
EN Enable Input Current
Thermal Shutdown Trip Point
Thermal Shutdown Hysteresis
Sourcing and Sinking
Sourcing and Sinking
0
V
PIN
=V
NIN
=8V
V
EN
Rising
V
EN
Falling
V
EN
= 5V
T
J
Rising
0.4
Symbol Condition
V
EN
= 0V
Min
Typ
2
3
0.18
5.0
V
DD
/2
1
1.4
1.2
1
150
30
V
DD
-1.5
5
2.0
Max
10
6
Units
µA
mA
Ω
A
V
µA
V
V
µA
°C
°C
MP7731 Rev. 1.8
9/25/2006
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2006 MPS. All Rights Reserved.
2
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