IC AMP AUDIO PWR 1W MONO 8SOIC

TS4890ID

Manufacturer Part NumberTS4890ID
DescriptionIC AMP AUDIO PWR 1W MONO 8SOIC
ManufacturerSTMicroelectronics
TypeClass AB
TS4890ID datasheet
 


Specifications of TS4890ID

Output Type1-Channel (Mono)Max Output Power X Channels @ Load1W x 1 @ 8 Ohm
Voltage - Supply2.5 V ~ 5.5 VFeaturesDepop, Standby, Thermal Protection
Mounting TypeSurface MountPackage / Case8-SOIC (3.9mm Width)
ProductClass-AOutput Power1 W
Thd Plus Noise0.15 %Operating Supply Voltage3 V, 5 V
Supply Current6 mAMaximum Operating Temperature+ 85 C
Mounting StyleSMD/SMTAudio Load Resistance8 Ohms
Input Offset Voltage- 0.3 V to + 0.3 VInput Signal TypeSingle
Minimum Operating Temperature- 40 COutput Signal TypeDifferential
Supply TypeSingleSupply Voltage (max)5.5 V
Supply Voltage (min)2.2 VOperational ClassClass-A
Audio Amplifier Output Configuration1-Channel MonoOutput Power (typ)1x1@8OhmW
Audio Amplifier FunctionSpeakerTotal Harmonic Distortion0.15@8Ohm@250mW%
Single Supply Voltage (typ)3/5VDual Supply Voltage (typ)Not RequiredV
Supply Current (max)8@5VmAPower Supply RequirementSingle
Unity Gain Bandwidth Product (typ)2MHzRail/rail I/o TypeRail to Rail Output
Power Supply Rejection Ratio77dBSingle Supply Voltage (min)2.2V
Single Supply Voltage (max)5.5VDual Supply Voltage (min)Not RequiredV
Dual Supply Voltage (max)Not RequiredVOperating Temp Range-40C to 85C
Operating Temperature ClassificationIndustrialMountingSurface Mount
Pin Count8Package TypeSO
Lead Free Status / RoHS StatusContains lead / RoHS non-compliantOther names497-2292-5
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Components
Inverting input resistor which sets the closed loop gain in conjunction with Rfeed. This resistor also
Rin
forms a high pass filter with Cin (fc = 1 / (2 x Pi x Rin x Cin))
Cin
Input coupling capacitor which blocks the DC voltage at the amplifier input terminal
Rfeed
Feed back resistor which sets the closed loop gain in conjunction with Rin
Cs
Supply Bypass capacitor which provides power supply filtering
Cb
Bypass pin capacitor which provides half supply filtering
Low pass filter capacitor allowing to cut the high frequency
Cfeed
(low pass filter cut-off frequency 1 / (2 x Pi x Rfeed x Cfeed))
Rstb
Pull-down resistor which fixes the right supply level on the standby pin
Gv
Closed loop gain in BTL configuration = 2 x (Rfeed / Rin)
REMARKS
1. All measurements, except PSRR measurements, are made with a supply bypass capacitor Cs = 100µF.
1. External resistors are not needed for having better stability when supply @ Vcc down to 3V. The
quiescent current still remains the same.
2. The standby response time is about 1µs.
Functional Description
TS4890
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