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MP7740DN-LF-Z

P1-P3P4-P6P7-P9P10-P12
MP7740
15W Class D Mono
Single Ended Audio Amplifer
MP7740 Rev. 0.9 www.MonolithicPower.com 1
9/22/2009 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2009 MPS. All Rights Reserved.
The Future of Analog IC Technology
DESCRIPTION
The MP7740 is a mono 15W Class D Audio
Amplifier. It is one of MPS’ products of fully
integrated audio amplifiers which dramatically
reduces solution size by integrating the
following:
250m power MOSFETs
Startup / Shutdown pop elimination
Short circuit protection circuits
The MP7740 utilizes a single ended output
structure capable of delivering 15W into 4
speakers. MPS Class D Audio Amplifiers exhibit
the high fidelity of a Class A/B amplifier at high
efficiencies. The circuit is based on the MPS’
proprietary variable frequency topology that
delivers excellent linearity, fast response time
and operates on a single power supply.
FEATURES
• 15W Output at V
DD
= 24V into a 4 load
• THD+N = 0.05% at 1W, 8
• 90% Efficiency at 15W & V
DD
=24V
• Low Noise (103µV Typical)
• Switching Frequency Up to 1MHz
• 9.5V to 36V Operation from a Single Supply
• Integrated Startup and Shutdown Pop
Elimination Circuit
• Thermal and Short Circuit Protection
• Integrated Power FETs
• Pin Compatible with MP7720
• Available in Tiny 8-Pin SOIC Package
APPLICATIONS
• Portable Docking Stations
• Surround Sound DVD Systems
• Televisions
• Flat Panel Monitors
• Multimedia Computers
• Home Stereo Systems
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of
Monolithic Power Systems, Inc.
AAM (Analog Adaptive Modulation) is a Trademark of Monolithic Power
Systems, Inc.
TYPICAL APPLICATION
+
AUDIO
INPUT
OFF ON
V
DD
MP7740
SW
BS
PGND
VDD
PIN
EN
NIN
AGND
8
6
5
7
1
4
2
3
THD+N vs. P
OUT
V
DD
=24V
,
Freq=1kHz,A-wtd
THD+N (%)
0.01
20
0.02
0.05
0.1
0.2
0.5
1
2
5
10
60m 200m 1 5 20
P
OUT
(W)
MP7740 – 15W CLASS D MONO SINGLE ENDED AUDIO AMPLIFIER
MP7740 Rev. 0.9 www.MonolithicPower.com 2
9/22/2009 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2009 MPS. All Rights Reserved.
ORDERING INFORMATION
*For Tape & Reel, add suffix –Z (eg. MP7740DN–Z); For RoHS compliant packaging, add suffix –LF (eg.
MP7740DN–LF–Z)
PACKAGE REFERENCE
PIN
NIN
AGND
EN
PGND
SW
VDD
BS
1
2
3
4
8
7
6
5
TOP VIEW
EXPOSED PAD
ON BACKSIDE
ABSOLUTE MAXIMUM RATINGS
(1)
Supply Voltage V
DD
...................................... 40V
BS Voltage.................. V
SW
– 0.3V to V
SW
+ 6.5V
Enable Voltage V
EN
........................–0.3V to +6V
V
SW
................... –1V (-5V for <10ns) to V
DD
+ 1V
V
PIN
, V
NIN
................................... –1V to V
DD
+ 1V
AGND to PGND ..........................–0.3V to +0.3V
Continuous Power Dissipation (T
A
= +25°C)
(2)
………………………………………………...2.5W
Junction Temperature............................... 150
°C
Lead Temperature ....................................260°C
Storage Temperature.............. –65°C to +150°C
Recommended Operating Conditions
(3)
Supply Voltage V
DD
..........................9.5V to 36V
Operating Temperature T
A
........ –40°C to +85°C
Thermal Resistance
(4)
θ
JA
θ
JC
SOIC8E .................................. 50 ....... 8.........°C
Notes:
1) Exceeding these ratings may damage the device.
2) The maximum allowable power dissipation is a function of the
maximum junction temperature T
J
(MAX), the junction-to-
ambient thermal resistance
JA
, and the ambient temperature
T
A
. The maximum allowable continuous power dissipation at
any ambient temperature is calculated by P
D
(MAX) = (T
J
(MAX)-T
A
)/
JA
. Exceeding the maximum allowable powe
r
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.
Part Number* Package Top Marking Temperature
MP7740DN SOIC8E MP7740DN
–40°C to +85°C
MP7740 – 15W CLASS D MONO SINGLE ENDED AUDIO AMPLIFIER
MP7740 Rev. 0.9 www.MonolithicPower.com 3
9/22/2009 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2009 MPS. All Rights Reserved.
ELECTRICAL CHARACTERISTICS
(5, 6)
V
DD
= 24V, V
EN
= 5V, T
A
= +25°C, unless otherwise noted.
Parameters Symbol Condition Min Typ Max Units
Supply Current
Standby Current V
EN
= 0V 20 50 µA
Quiescent Current SW=0V 1.5 3.0 mA
Output Drivers
SW On Resistance Sourcing and Sinking 0.25
Short Circuit Current Sourcing and Sinking 4.5 A
Inputs
PIN, NIN Input Common Mode
Voltage Range
0
V
DD
2
V
DD
– 1.5 V
PIN, NIN Input Current V
PIN
= V
NIN
= 12V 1 5 µA
V
EN
Rising 1.8 2.5 V
EN Enable Threshold Voltage
V
EN
Falling 0.8 1.2 V
EN Enable Input Current V
EN
= 5V 1 µA
Thermal Shutdown
Thermal Shutdown Trip Point T
J
Rising 150
°C
Thermal Shutdown Hysteresis 30
°C
Notes:
5) The device is not guaranteed to function outside its operating rating.
6) Electrical Characteristics are for the IC only with no external components except bypass capacitors.
OPERATING SPECIFICATIONS
(7)
Circuit of Figure 1, V
DD
= 24V, V
EN
= 5V, T
A
= +25°C, unless otherwise noted.
Parameters Symbol Condition Min Typ Max Units
Standby Current V
EN
= 0V 130 µA
Quiescent Current 13 mA
f = 1KHz, THD+N = 10%, 4
Load
15 W
Power Output
f = 1KHz, THD+N = 10%, 8
Load
8 W
P
OUT
= 1W, f = 1kHz, 4 Load 0.05 %
THD+ Noise
P
OUT
= 1W, f = 1kHz, 8 Load 0.018 %
f = 1KHz, P
OUT
= 15W, 4 Load 90 %
Efficiency
f = 1KHz, P
OUT
= 8W, 8 Load 90 %
Maximum Power Bandwidth 20 kHz
Dynamic Range 97 dB
Noise Floor A-Weighted 103 µV
f = 1kHz -60 dB
Power Supply Rejection
V
CC
=24V,
Gain=8.25V/V,
V
RIPPLE
=200mV
PP
C
R
=100µF
f = 100Hz -60 dB
Notes:
7) Operating Specifications are for the IC in Typical Application circuit (Figure 1).
P1-P3P4-P6P7-P9P10-P12

MP7740DN-LF-Z

Mfr. #:
Buy MP7740DN-LF-Z
Manufacturer:
Monolithic Power Systems (MPS)
Description:
Audio Amplifiers 15W Class-D Mono Single End Audio Amp
Lifecycle:
New from this manufacturer.
Delivery:
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