HT82V73A Datasheet, PDF (1/9 Pages) Holtek Semiconductor Inc – 1500mW Audio Power Amp with Shutdown

HT82V73A
1500mW Audio Power Amp with Shutdown
Features
• Operating voltage: 2.2V to 5.5V
• High signal-to-noise ratio
• Low distortion
• Large output voltage swing
• Low power consumption
• Output power 1500mW at 10% THD+N into 8Ω
(VDD=5V)
• Wide temperature operating range
• Low power-on and chip enable or disable POP noise
• Low standby current
• Power off control
• Can directly drive speakers
• 8-pin SOP package
Applications
• Wide range of audio applications
General Description
The HT82V73A is an integrated class AB mono
speaker driver contained in an SOP 8-pin package.
The device is capable of delivering 1500mW of
output power into an 8Ω load with less than 10%
(THD+N) distortion from a 5V power supply. When
in the shutdown mode the very low standby current
is an important feature for a wide range of battery
powered audio applications.
Block Diagram
O U TN
R
A u d In
VREF
10R
AM P1
B IA S
AM P2
O U TP
R
R
VDD
VSS
CE
Pin Assignment
O U TN 1
8 VDD
A u d In 2 _{G N D} 7 O U T P
VREF 3 ^PAD 6 NC
VSS 4
5 CE
H T82V 73A
8 S O P -A (E P A D )
Rev. 1.00
1
October 16, 2014