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TS4871| Datasheet

By datasheet - April 3rd, 2008

TS4871, TS4871EIDT, TS4871ID, TS4871IDT, TS4871IQT, TS4871IST

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TS4871
OUTPUT RAIL TO RAIL 1W AUDIO POWER AMPLIFIER WITH STANDBY MODE
s OPERATING FROM VCC = 2.5V to 5.5V s 1W RAIL TO RAIL OUTPUT POWER @
Vcc=5V, THD=1%, f=1kHz, with 8 Load MODE (10nA) PIN CONNECTIONS (Top View)
TS4871IST - MiniSO8
1 2 3 4 8 7 6 5

s ULTRA LOW CONSUMPTION IN STANDBY
Standby Bypass VIN+ VINVOUT2 GND VCC VOUT1

s 75dB PSRR @ 217Hz from 5V to 2.6V s ULTRA LOW POP & CLICK s ULTRA LOW DISTORTION (0.1%) s UNITY GAIN STABLE s AVAILABLE IN SO8, MiniSO8 & DFN8 3x3mm
DESCRIPTION

TS4871ID-TS4871IDT - SO8

Standby

1 2 3 4

8 7 6 5

VOUT2 GND VCC VOUT1

The TS4871 is an Audio Power Amplifier capable of delivering 1W of continuous RMS Ouput Power into 8 load @ 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 thermal shutdown protection is also provided. The TS4871 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. APPLICATIONS

Bypass VIN+ VIN-

TS4871IQT - DFN8

STANDBY BYPASS VIN+ VIN-

1 2 3 4

8 7 6 5

VOUT 2 GND Vcc VOUT 1

s Mobile Phones (Cellular / Cordless) s Laptop / Notebook Computers s PDAs s Portable Audio Devices
ORDER CODE
Part Number TS4871 Temperature Range: I -40, +85 C Package Marking D S Q 4871I 4871
Vcc Audio Input

TYPICAL APPLICATION SCHEMATIC
Cfeed Rfeed Vcc 6 Vcc Cs

Rin Cin

4 3

VinVin+

+

Vout1 5

RL 8 Ohms Av=-1 + Vout2 8

2 Rstb 1

Bypass Standby Bias GND

TS4871

Cb

7

MiniSO & DFN only available in Tape & Reel with T suffix(IST & IQT) D = Small Outline Package (SO) - also available in Tape & Reel (DT)

June 2003

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