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STMicroelectronics Electronic Components Datasheet

TS4990 Datasheet

1.2 W audio power amplifier

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TS4990
1.2 W audio power amplifier with active-low standby mode
Vin+
VCC
STBY
VOUT1 GND
VOUT2
Vin-
GND
BYPASS
TS4990EIJT - Flip-chip 9 bumps
TS4990IST - MiniSO-8
STANDBY 1
BYPASS 2
VIN+ 3
VIN– 4
8 VOUT2
7 GND
6 VCC
5 VOUT1
TS4990IQT - DFN8
STBY 1
BYPASS 2
8 VOUT2
7 GND
VIN+ 3
VIN- 4
6 VCC
5 VOUT1
TS4990IDT - SO-8
Datasheet - production data
Features
Operating range from VCC = 2.2 V to 5.5 V
1.2 W output power at VCC = 5 V, THD = 1%,
F = 1 kHz, with 8 load
Ultra-low consumption in standby mode
(10 nA)
62 dB PSRR at 217 Hz in grounded mode
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)
Laptop / notebook computers
PDAs
Portable audio devices
Description
The TS4990 is designed for demanding audio
applications such as mobile phones to reduce the
number of external components.
This audio power amplifier is capable of delivering
1.2 W of continuous RMS output power into an
8 load at 5 V.
An externally controlled standby mode reduces
the supply current to less than 10 nA. It also
includes an internal thermal shutdown protection.
The unity-gain stable amplifier can be configured
by external gain setting resistors.
January 2019
This is information on a product in full production.
DocID9309 Rev 14
1/33
www.st.com


STMicroelectronics Electronic Components Datasheet

TS4990 Datasheet

1.2 W audio power amplifier

No Preview Available !

Contents
Contents
TS4990
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 (tWU) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
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


Part Number TS4990
Description 1.2 W audio power amplifier
Maker STMicroelectronics
Total Page 30 Pages
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