ACTIVE LOW. TS4890 Datasheet


TS4890 LOW. Datasheet pdf. Equivalent


TS4890


RAIL TO RAIL OUTPUT 1W AUDIO POWER AMPLIFIER WITH STANDBY MODE ACTIVE LOW
TS4890
RAIL TO RAIL OUTPUT 1W AUDIO POWER AMPLIFIER WITH STANDBY MODE ACTIVE LOW
s OPERATING FROM VCC = 2.2V to 5.5V s 1W RAI L TO RAIL OUTPUT POWER @
Vcc=5V, THD=1%, f=1kHz, with 8Ω Load MODE (10nA) PIN CONNECTIONS (Top View)
TS4890ID, TS4890IDT - SO8
Standby Bypass VIN+ VIN1 2 3 4 8 7 6 5 VOUT2 GND VCC VOUT1

s ULTRA LOW CONSUMPTION IN STANDBY s 75dB PSRR @ 217Hz from 5 to 2.2V s POP & CLICK REDUCTION CIRCUITRY s ULTRA LOW DISTORTION (0.1%) s UNITY GAIN STABLE s AVAILABLE IN SO8, MiniSO8 & DFN8
DESCRIPTION The TS4890 (MiniSO8 & SO8) is an Audio Power Amplifier capable of delivering 1W of continuous RMS. ouput power into 8Ω 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 TS4890 have 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
TYPICAL APPLICATION SCHEMATIC

TS4890IST - MiniSO8

Standby Bypass VIN+ VIN-

1 2 3 4

8 7 6 5

VOUT2 GND VCC VOUT1

TS4890IQT - 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 ...



TS4890
TS4890
RAIL TO RAIL OUTPUT 1W AUDIO POWER AMPLIFIER WITH
STANDBY MODE ACTIVE LOW
s OPERATING FROM VCC = 2.2V to 5.5V
s 1W RAI L TO RAIL OUTPUT POWER @
Vcc=5V, THD=1%, f=1kHz, with 8Load
s ULTRA LOW CONSUMPTION IN STANDBY
MODE (10nA)
s 75dB PSRR @ 217Hz from 5 to 2.2V
s POP & CLICK REDUCTION CIRCUITRY
s ULTRA LOW DISTORTION (0.1%)
s UNITY GAIN STABLE
s AVAILABLE IN SO8, MiniSO8 & DFN8
DESCRIPTION
The TS4890 (MiniSO8 & SO8) is an Audio Power
Amplifier capable of delivering 1W of continuous
RMS. ouput power into 8load @ 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 TS4890 have 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.
PIN CONNECTIONS (Top View)
TS4890ID, TS4890IDT - SO8
Standby
Bypass
VIN+
VIN-
1
2
3
4
8 VOUT2
7 GND
6 VCC
5 VOUT1
TS4890IST - MiniSO8
Standby
Bypass
VIN+
VIN-
1
2
3
4
8 VOUT2
7 GND
6 VCC
5 VOUT1
TS4890IQT - DFN8
STANDBY 1
BYPASS 2
VIN+ 3
VIN- 4
8 VOUT 2
7 GND
6 Vcc
5 VOUT 1
APPLICATIONS
s Mobile Phones (Cellular / Cordless)
s Laptop / Notebook Computers
s PDAs
s Portable Audio Devices
ORDER CODE
Part
Number
TS4890
Temperature
Range
-40, +85°C
Package
S DQ
Marking
4890I
4890
4890
MiniSO & DFN only available in Tape & Reel: with T suffix.
SO is available in Tube (D) and of Tape & Reel (DT)
June 2003
TYPICAL APPLICATION SCHEMATIC
Audio
Input
Rin
Cin
Cfeed
Rfeed Vcc
6
4 Vin- -
3 Vin+ +
Vcc
2 Bypass
1 Standby
Bias
Rstb
Cb
7
Cs
Vout1 5
-
Av=-1
+
Vout2 8
RL
8 Ohms
TS4890
1/32

TS4890
TS4890
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
VCC Supply voltage 1)
6
Vi Input Voltage 2)
GND to VCC
Toper Operating Free Air Temperature Range
-40 to + 85
Tstg Storage Temperature
-65 to +150
Tj Maximum Junction Temperature
150
Rthja
Thermal Resistance Junction to Ambient3)
SO8
MiniSO8
DFN8
175
215
70
Pd Power Dissipation4)
See Power Derating Curves
Fig. 24
ESD Human Body Model
2
ESD Machine Model
200
Latch-up Immunity
Class A
Lead Temperature (soldering, 10sec)
260
1. All voltages values are measured with respect to the ground pin.
2. The magnitude of input signal must never exceed VCC + 0.3V / GND - 0.3V
3. Device is protected in case of over temperature by a thermal shutdown active @ 150°C.
4. Exceeding the power derating curves during a long period may involve abnormal working of the device.
Unit
V
V
°C
°C
°C
°C/W
W
kV
V
°C
OPERATING CONDITIONS
Symbol
Parameter
Value
VCC
VICM
Supply Voltage
Common Mode Input Voltage Range
2.2 to 5.5
GND + 1V to VCC
VSTB
RL
Rthja
Standby Voltage Input :
Device ON
Device OFF
Load Resistor
Thermal Resistance Junction to Ambient1)
SO8
MiniSO8
DFN8 2)
1.5 VSTB VCC
GND VSTB 0.5
4 - 32
150
190
41
1. This thermal resistance can be reduced with a suitable PCB layout (see Power Derating Curves Fig. 24)
2. When mounted on a 4 layers PCB
Unit
V
V
V
°C/W
2/32




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