STMicroelectronics TS4995
The TS4995 is an audio power amplifier capable of delivering 1.2 W of continuous RMS output power into an 8 Ω load at 5 V. TS4995 - Flip chip 9 Pin connections (top view) Gnd VO- 7 6 5 VO+ Bypass 8 9 4 Stdby VIN+ 1 2 3 VIN- VCC Stdby Mode The TS4995 features an internal fixed gain at 6dB which reduces the number of external components on the application board.FEATURES
● Differential inputs● 90 dB PSRR @ 217 Hz with grounded inputs
● Operates from VCC = 2.5 V to 5.5 V
● 1.2 W rail-to-rail output power @ VCC=5 V, THD+N=1%, F=1 kHz, with an 8 Ω load
● 6 dB integrated fixed gain
● Ultra-low consumption in standby mode (10 nA)
● Selectable standby mode (active low or active high)
● Ultra-fast startup time: 10 ms typ. at VCC=3.3 V
● Available in 9-bump flip chip (300 mm bump diameter)
● Ultra-low pop and click
APPLICATIONS
● Mobile phones (cellular / cordless)● PDAs
● Laptop / notebook computers
● Portable audio devices
DESCRIPTION
Thanks to its differential inputs, it exhibits outstanding noise immunity. An external standby mode control reduces the supply current to less than 10 nA. A STBY MODE pin allows the standby pin to be active high or low. An internal thermal shutdown protection is also provided, making the device capable of sustaining short-circuits. The device is equipped with common mode feedback circuitry allowing outputs to be always biased at VCC/2 regardless of the input common mode voltage.