TS4902 ACTIVE LOW Datasheet

TS4902 Datasheet, PDF, Equivalent


Part Number

TS4902

Description

300mW at 3.3V SUPPLY AUDIO POWER AMPLIFIER WITH STANDBY MODE ACTIVE LOW

Manufacture

STMicroelectronics

Total Page 19 Pages
Datasheet
Download TS4902 Datasheet


TS4902
TS4902
300mW at 3.3V SUPPLY AUDIO POWER AMPLIFIER
WITH STANDBY MODE ACTIVE LOW
s OPERATING FROM VCC = 2.2V to 5.5V
s 0.7W OUTPUT POWER @ Vcc=5V, THD=1%,
f=1kHz, with an 8load
s 0.3W OUTPUT POWER @ Vcc=3.3V,
THD=1%, f=1kHz, with an 8load
s ULTRA LOW CONSUMPTION IN STANDBY
MODE (10nA)
s 77dB PSRR @ 217Hz from 5V to 2.2V
s ULTRA LOW POP & CLICK
s ULTRA LOW DISTORTION (0.1%)
s UNITY GAIN STABLE
s AVAILABLE IN MiniSO8 & SO8
DESCRIPTION
The TS4902 is an audio power amplifier designed
to provide the best price to power ratio while pre-
serving high audio quality.
Available in MiniSO8 & SO8 package, it is capable
of delivering up to 0.7W of continuous RMS ouput
power into an 8load @ 5V.
TS4902 is also exhibiting an outstanding 0.1%
distortion level (THD) from a 5V supply for a Pout
of 200mW RMS.
An externally controlled standby mode reduces
the supply current to less than 10nA. It also in-
cludes an internal thermal shutdown protection.
The unity-gain stable amplifier can be configured
by external gain setting resistors.
APPLICATIONS
s Mobile Phones (Cellular / Cordless)
s PDAs
s Portable Audio Devices
ORDER CODE
Part Number
TS4902IST
TS4902ID
Temperature
Range
-40, +85°C
Package
ST D
S = MiniSO Package (MiniSO) is only available in Tape & Reel (ST)
D = Small Outline Package (SO) - also available in Tape & Reel (DT)
January 2002
PIN CONNECTIONS (top view)
TS4902IS-TS4902IST - MiniSO8
Standby
Bypass
VIN+
VIN-
1
2
3
4
8 VOUT2
7 GND
6 VCC
5 VOUT1
TS4902ID-TS4902IDT - SO8
Standby
Bypass
VIN+
VIN-
1
2
3
4
8 VOUT2
7 GND
6 VCC
5 VOUT1
TYPICAL APPLICATION SCHEMATIC
Audio
Input
Rin
Cin
VCC
Rstb
Cfeed
Rfeed VCC
6
4 Vin- -
3 Vin+ +
V
C
Cs
Vout 1 5
2 Bypass
1 Standby Bias
-
AV = -1
+
GND
Cb 7
Vout 2 8
TS4902
RL
8 Ohms
1/19

TS4902
TS4902
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
VCC
Vi
Toper
Tstg
Tj
Rthja
Supply voltage 1)
Input Voltage 2)
Operating Free Air Temperature Range
Storage Temperature
Maximum Junction Temperature
Thermal Resistance Junction to Ambient 3)
SO8
MiniSO8
Pd Power Dissipation 4)
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, will cause abnormal operation.
OPERATING CONDITIONS
Symbol
Parameter
VCC Supply Voltage
VICM Common Mode Input Voltage Range
VSTB
Standby Voltage Input :
Device ON
Device OFF
RL Load Resistor
Rthja
Thermal Resistance Junction to Ambient 1)
SO8
MiniSO8
1. This thermal resistance can be reduced with a suitable PCB layout (see Power Derating Curves)
Value
6
GND to VCC
-40 to + 85
-65 to +150
150
175
215
See the power derating
curves Fig 20.
2
200
Class A
250
Value
2.2 to 5.5
GND to VCC - 1.5V
1.5 VSTB VCC
GND VSTB 0.5
4 - 32
150
190
Unit
V
V
°C
°C
°C
°C/W
kV
V
°C
Unit
V
V
V
°C/W
2/19


Features TS4902 300mW at 3.3V SUPPLY AUDIO POWER AMPLIFIER WITH STANDBY MODE ACTIVE LOW s OPERATING FROM VCC = 2.2V to 5.5V s 0 .7W OUTPUT POWER @ Vcc=5V, THD=1%, f=1k Hz, with an 8Ω load PIN CONNECTIONS ( top view) s 0.3W OUTPUT POWER @ Vcc=3. 3V, THD=1%, f=1kHz, with an 8Ω load s ULTRA LOW CONSUMPTION IN STANDBY MODE (10nA) s 77dB PSRR @ 217Hz from 5V to 2.2V s ULTRA LOW POP & CLICK s ULTRA LO W DISTORTION (0.1%) s UNITY GAIN STABLE s AVAILABLE IN MiniSO8 & SO8 DESCRIPTI ON The TS4902 is an audio power amplifi er designed to provide the best price t o power ratio while preserving high aud io quality. Available in MiniSO8 & SO8 package, it is capable of delivering up to 0.7W of continuous RMS ouput power into an 8Ω load @ 5V. TS4902 is also exhibiting an outstanding 0.1% distorti on level (THD) from a 5V supply for a P out of 200mW RMS. An externally control led standby mode reduces the supply cur rent to less than 10nA. It also include s an internal thermal shutdown protection. The unity-gain stable ampl.
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