TS4998IQT STMicroelectronics, TS4998IQT Datasheet - Page 19

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TS4998IQT

Manufacturer Part Number
TS4998IQT
Description
IC AMP AUDIO PWR 1W STER 16QFN
Manufacturer
STMicroelectronics
Type
Class ABr
Datasheet

Specifications of TS4998IQT

Output Type
2-Channel (Stereo)
Max Output Power X Channels @ Load
1W x 2 @ 8 Ohm
Voltage - Supply
2.7 V ~ 5.5 V
Features
Depop, Differential Inputs, Standby, Thermal Protection
Mounting Type
Surface Mount
Package / Case
16-QFN
Operational Class
Class-AB
Audio Amplifier Output Configuration
2-Channel Stereo
Output Power (typ)
1x2@8OhmW
Audio Amplifier Function
Speaker
Total Harmonic Distortion
0.5@8Ohm@700mW%
Single Supply Voltage (typ)
3/5V
Dual Supply Voltage (typ)
Not RequiredV
Power Supply Requirement
Single
Unity Gain Bandwidth Product (typ)
1.5MHz
Rail/rail I/o Type
No
Power Supply Rejection Ratio
80dB
Single Supply Voltage (min)
2.7V
Single Supply Voltage (max)
5.5V
Dual Supply Voltage (min)
Not RequiredV
Dual Supply Voltage (max)
Not RequiredV
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
16
Package Type
QFN EP
For Use With
497-8259 - BOARD EVAL BASED ON TS4998
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-6842-2
TS4998
Figure 62. Power dissipation vs. output power Figure 63. Power derating curves
400
350
300
250
200
150
100
50
0
0
50
100
150
Output Power (mW)
RL=16
200
250
Ω
RL=8
300
Ω
Vcc = 2.7V
F = 1kHz
THD+N < 1%
350
RL=4
400
Ω
450
3.0
2.8
2.6
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0
No Heat sink -AMR value
25
Ambiant Temperature (
50
Mounted on 4-layer PCB
with vias
Electrical characteristics
75
Mounted on 2-layer PCB
with vias
100
°
C)
125
19/33
150

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