P8304
P8304
XXXYW
XXXYW
A Product Line of
Diodes Incorporated
PAM8304
3W MONO CLASS D AUDIO AMPLIFIER
Description Pin Assignments
The PAM8304 is a mono filter-less Class-D amplifier with high SNR
DFN3X3-8L
and differential input that helps eliminate noise. The PAM8304
Top View
supports 2.8V to 6V operation make it idea for up to 4 cells alkaline
battery applications. The PAM8304 is capable of driving speaker
OUT+ 1 8 OUT-
loads as low as 3 speaker with a 5V supply maximizing the output
power.
PVDD 2 GND
7
Features like greater than 90% efficiency and small PCB area make
VDD 3 6 SD
the PAM8304 Class-D amplifier ideal for portable applications. The
output uses a filter-less architecture minimizing the number of
IN- 4 5 IN+
external components and PCB area whilst providing a high
performance, simple and lower cost system.
MSOP-8L
Top View
The PAM8304 features short circuit protection, thermal shutdown and
under voltage lock-out.
OUT+
1 OUT-
8
The PAM8304 is available in DFN3030-8L and MOP-8L packages.
GND
PVDD 2 7
VDD 3 6 SD
Features
IN- 5 IN+
Supply Voltage from 2.8V to 6.0 V 4
3 Driving Capability
3.0W@10% THD Output with a 4 Load and 5V Supply
High Efficiency up to 90% @1W with an 8 Load
Shutdown Current <1 A
Applications
Superior Low Noise without Input
MP4/MP3
Short Circuit Protection
GPS
Thermal Shutdown
Set-Top-Box
Available in Space Saving DFN3030-8L and MSOP-8L
Tablets/Digital Photo Frame
Packages
Electronic Dictionary
Pb-Free Package
Portable Game Machines
Typical Applications Circuit
VDD
1F
PVDD VDD
0.1 F
VIN
IN+
OUT+
0.1 F
IN-
PAM 8304
/SD /SD
OUT-
PGND GND
1 of 11 October 2013
PAM8304
Diodes Incorporated
www.diodes.com
Document number: DS36589 Rev. 1 - 2
NEW PRODUCT
A Product Line of
Diodes Incorporated
PAM8304
Pin Descriptions
Pin Name MSOP-8L/DFN3x3-8L Function
OUT+ 1 Positive BTL Output
PVDD 2 Power Supply
VDD 3 Analog Power Supply
IN- 4 Negative Differential Input
IN+ 5 Positive Differential Input
/SD 6 Shutdown Terminal, Active Low
GND 7 Ground
OUT- 8 Negative BTL Output
Exposed Pad NC
Functional Block Diagram
VDD
IN+
PVDD
Gate
OUT+
Drive
PWM
-
Modulator
+
Gate
OUT-
IN-
Drive
SC
SD
SD
UVLO
Protect
Startup GND
Bias and
OTP
OSC
Vref Protection
Absolute Maximum Ratings (@T = +25C, unless otherwise specified.)
A
Parameter Rating Unit
Supply Voltage (VDD) 6.5 V
Input Voltage (IN+, IN-, /SD) -0.3 to V +0.3 V
DD
Storage Temperature -65 to +150 C
Maximum Junction Temperature 150 C
Recommended Operating Conditions (@T = +25C, unless otherwise specified.)
A
Symbol Parameter Min Max Unit
V Supply Voltage 2.8 6.0 V
DD
T Operating Ambient Temperature Range -40 +85 C
A
T Junction Temperature Range -40 +125 C
J
2 of 11 October 2013
PAM8304
Diodes Incorporated
www.diodes.com
Document number: DS36589 Rev. 1 - 2
NEW PRODUCT