TS4902
TS4902 is 300mW at 3.3V SUPPLY AUDIO POWER AMPLIFIER WITH STANDBY MODE ACTIVE LOW manufactured by STMicroelectronics.
DESCRIPTION
The TS4902 is an audio power amplifier designed to provide the best price to power ratio while preserving high audio quality. Available in Mini SO8 & 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% distortion level (THD) from a 5V supply for a Pout of 200m W RMS. An externally controlled standby mode reduces the supply current to less than 10n A. It also includes 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
TS4902IS-TS4902IST
- Mini SO8
Standby Bypass VIN+ VIN-
1 2 3 4
8 7 6 5
VOUT2 GND VCC VOUT1
TS4902ID-TS4902IDT
- SO8
Standby Bypass VIN+ VIN-
1 2 3 4
8 7 6 5
VOUT2 GND VCC VOUT1
TYPICAL APPLICATION SCHEMATIC
Cfeed Rfeed VCC 6 Audio Input Cin 3 Vin+ + RL 8 Ohms VCC AV = -1 2 1 Bypass Standby Bias GND Cb 7 TS4902 + Vout 2 8 Cs
Rin
Vin-
- V C Vout 1 5
- D
- Rstb
S = Mini SO Package (Mini SO) is only available in Tape & Reel (ST) D = Small Outline Package (SO)
- also available in Tape & Reel (DT)
January 2002
1/19
ABSOLUTE MAXIMUM RATINGS
Symbol VCC Vi Toper Tstg Tj Rthja Supply voltage Input Voltage
2) 1)
Parameter
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
Unit V V °C °C °C °C/W
Operating Free Air Temperature Range Storage Temperature Maximum Junction Temperature Thermal Resistance Junction to Ambient 3) SO8 Mini SO8 Power Dissipation 4)
Pd
ESD Human Body Model ESD Machine Model Latch-up Latch-up Immunity Lead Temperature (soldering, 10sec)
1. 2. 3. 4. All voltages values are measured with respect to the ground pin. The magnitude of input signal must never exceed VCC + 0.3V / G ND
- 0.3V Device is protected in case...