TS4990IST STMicroelectronics

TS4990 1.2 W audio power amplifier with active-low standby mode Datasheet - production data Features ViVinn++ VCCVCC STSTBYBY Operating range from V = 2.2 V to 5.5 V CC 1.2 W output power at V =5V, THD= 1%, CC VOVOUUTT11 GGNNDD VOUTVOUT22 F = 1 kHz, with 8 load Ultra-low consumption in standby mode Vin-Vin- GNGNDD BBYYPPAASSSS (10 nA) 62 dB PSRR at 217 Hz in grounded mode TS4990EIJT - Flip-chip 9 bumps Near-zero pop and click Ultra-low distortion (0.1%) Unity gain stable Available in 9-bump flip-chip, miniSO-8 and DFN8 packages Applications Mobile phones (cellular / cordless) TS4990IST - MiniSO-8 Laptop / notebook computers PDAs V Portable audio devices STANDBY 1 8 OUT2 BYPASS 2 7 GND Description V IN+ 3 6 V CC The TS4990 is designed for demanding audio V 4 5 OUT1 VIN applications such as mobile phones to reduce the number of external components. This audio power amplifier is capable of delivering TS4990IQT - DFN8 1.2 W of continuous RMS output power into an 8 load at 5 V. 11 88 VOUT2VOUT2 STBYSTBY An externally controlled standby mode reduces the supply current to less than 10 nA. It also 22 77 BYPASSBYPASS GNDGND includes an internal thermal shutdown protection. The unity-gain stable amplifier can be configured 33 66 VIN+VIN+ VV CCCC by external gain setting resistors. 44 55 VOVOUT1UT1 VIN-VIN- TS4990IDT - SO-8 January 2019 DocID9309 Rev 14 1/33 This is information on a product in full production. www.st.comContents TS4990 Contents 1 Absolute maximum ratings and operating conditions . 3 2 Typical application schematics 4 3 Electrical characteristics . 5 4 Application information . 18 4.1 BTL configuration principle 18 4.2 Gain in a typical application . 18 4.3 Low and high frequency response 18 4.4 Power dissipation and efficiency . 19 4.5 Decoupling of the circuit 20 4.6 Wake-up time (t ) . 21 WU 4.7 Standby time . 21 4.8 Pop performance . 22 4.9 Application example: differential input, BTL power amplifier 23 5 Package information 25 5.1 Flip-chip package information . 25 5.2 MiniSO-8 package information . 28 5.3 DFN8 package information 29 5.4 SO-8 package information 30 6 Ordering information . 31 7 Revision history . 32 2/33 DocID9309 Rev 14