TS4972 ACTIVE HIGH Datasheet

TS4972 Datasheet, PDF, Equivalent


Part Number

TS4972

Description

1.2W AUDIO POWER AMPLIFIER WITH STANDBY MODE ACTIVE HIGH

Manufacture

STMicroelectronics

Total Page 28 Pages
Datasheet
Download TS4972 Datasheet


TS4972
TS4972
1.2W AUDIO POWER AMPLIFIER
WITH STANDBY MODE ACTIVE HIGH
s OPERATING FROM VCC = 2.5V to 5.5V
s RAIL TO RAIL OUTPUT
s 1.2W OUTPUT POWER @ Vcc=5V, THD=1%,
F=1kHz, with 8Load
s ULTRA LOW CONSUMPTION IN STANDBY
MODE (10nA)
s 75dB PSRR @ 217Hz from 2.5 to 5V
s LOW POP & CLICK
s ULTRA LOW DISTORTION (0.05%)
s UNITY GAIN STABLE
s FLIP CHIP PACKAGE 8 x 300µm bumps
DESCRIPTION
The TS4972 is an Audio Power Amplifier capable
of delivering 1.6W of continuous RMS ouput pow-
er into a 4load @ 5V.
This Audio Amplifier is exhibiting 0.1% distortion
level (THD) from a 5V supply for a Pout = 250mW
RMS. An external standby mode control reduces
the supply current to less than 10nA. An internal
shutdown protection is provided.
The TS4972 has been designed for high quality
audio applications such as mobile phones and to
minimize the number of external components.
The unity-gain stable amplifier can be configured
by external gain setting resistors.
PIN CONNECTIONS (Top View)
TS4972JT - FLIP CHIP
7 65
Vin+ Vcc Stdby
8 Vout1
Vout2 4
Vin Gnd Bypass
123
APPLICATIONS
s Mobile Phones (Cellular / Cordless)
s PDAs
s Laptop/Notebook computers
s Portable Audio Devices
ORDER CODE
Part
Number
TS4972IJT
Temperature Package
Range
J
-40, +85°C
Marking
4972
J = Flip Chip Package - only available in Tape & Reel (JT))
January 2003
TYPICAL APPLICATION SCHEMATIC
Audio
Input
Rin
Cin
VCC
Rstb
Cfeed
Rfeed
VCC
6
VCC
1 Vin- -
7 Vin+ +
3 Bypass
5 Standby Bias
-
AV = -1
+
GND
Cb 2
Cs
Vout 1 8
Vout 2 4
RL
8 Ohms
TS4972
1/28

TS4972
TS4972
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
VCC
Vi
Toper
Tstg
Tj
Rthja
Pd
Supply voltage 1)
Input Voltage 2)
Operating Free Air Temperature Range
Storage Temperature
Maximum Junction Temperature
Thermal Resistance Junction to Ambient 3)
Power Dissipation
ESD Human Body Model
ESD Machine Model
Latch-up Latch-up Immunity
Lead Temperature (soldering, 10sec)
1. All voltages values are measured with respect to the ground pin.
2. The magnitude of input signal must never exceed VCC + 0.3V / GND - 0.3V
3. Device is protected in case of over temperature by a thermal shutdown active @ 150°C.
4. Exceeding the power derating curves during a long period, involves abnormal operating condition.
Value
6
GND to VCC
-40 to + 85
-65 to +150
150
200
Internally Limited4)
2
200
Class A
250
OPERATING CONDITIONS
Symbol
Parameter
VCC
VICM
Supply Voltage
Common Mode Input Voltage Range
VSTB
Standby Voltage Input :
Device ON
Device OFF
RL Load Resistor
Rthja Thermal Resistance Junction to Ambient 1)
1. With Heat Sink Surface = 125mm2
Value
2.5 to 5.5
GND to VCC - 1.2V
GND VSTB 0.5V
VCC - 0.5V VSTB VCC
4 - 32
90
Unit
V
V
°C
°C
°C
°C/W
kV
V
°C
Unit
V
V
V
°C/W
2/28


Features TS4972 1.2W AUDIO POWER AMPLIFIER WITH S TANDBY MODE ACTIVE HIGH s OPERATING FRO M VCC = 2.5V to 5.5V s RAIL TO RAIL OUT PUT s 1.2W OUTPUT POWER @ Vcc=5V, THD=1 %, F=1kHz, with 8Ω Load MODE (10nA) P IN CONNECTIONS (Top View) TS4972JT - F LIP CHIP s ULTRA LOW CONSUMPTION IN ST ANDBY s 75dB PSRR @ 217Hz from 2.5 to 5 V s LOW POP & CLICK s ULTRA LOW DISTORT ION (0.05%) s UNITY GAIN STABLE s FLIP CHIP PACKAGE 8 x 300µm bumps DESCRIPTI ON The TS4972 is an Audio Power Amplifi er capable of delivering 1.6W of contin uous RMS ouput power into a 4Ω load @ 5V. This Audio Amplifier is exhibiting 0.1% distortion level (THD) from a 5V supply for a Pout = 250mW RMS. An exter nal standby mode control reduces the su pply current to less than 10nA. An inte rnal shutdown protection is provided. T he TS4972 has been designed for high qu ality audio applications such as mobile phones and to minimize the number of e xternal components. The unity-gain stab le amplifier can be configured by external gain setting resistors. T.
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