TS4994IQT STMicroelectronics, TS4994IQT Datasheet - Page 10

IC AMP AUDIO PWR 1W MONO 10DFN

TS4994IQT

Manufacturer Part Number
TS4994IQT
Description
IC AMP AUDIO PWR 1W MONO 10DFN
Manufacturer
STMicroelectronics
Type
Class ABr
Datasheet

Specifications of TS4994IQT

Output Type
1-Channel (Mono)
Max Output Power X Channels @ Load
1W x 1 @ 8 Ohm
Voltage - Supply
2.5 V ~ 5.5 V
Features
Depop, Differential Inputs, Short-Circuit and Thermal Protection, Standby
Mounting Type
Surface Mount
Package / Case
10-DFN
For Use With
497-6396 - BOARD EVAL FOR LV TS4984IQT497-6395 - BOARD EVAL FOR LP DIFF TS4994IQT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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Electrical characteristics
10/35
Figure 9.
Figure 11. Output power vs. power supply
Figure 13. Output power vs. load resistance
1.0
0.8
0.6
0.4
0.2
0.0
1.0
0.8
0.6
0.4
0.2
0.0
0.3
0.2
0.1
0.0
2.5
0.0
8 8
Cb = 1 μ F
F = 1kHz
BW < 125kHz
Tamb = 25 ° C
Vcc=3.5V
Power dissipation vs. output power
voltage
12
3.0
0.1
Vcc=3V
Vcc=5V
RL=16 Ω
Load Resistance
16
16
3.5
Output Power (W)
Vcc=2.5V
Vcc=4.5V
0.2
Vcc (V)
20
RL=8 Ω
4.0
Vcc=4V
8 Ω
24
24
0.3
16 Ω
THD+N=1%
Cb = 1 F
F = 1kHz
BW < 125kHz
Tamb = 25 ° C
32 Ω
4.5
Vcc=3.3V
F=1kHz
THD+N<1%
28
0.4
5.0
32
32
Figure 10. Power dissipation vs. output power
Figure 12. Output power vs. power supply
Figure 14. Power derating curves
0.20
0.15
0.10
0.05
0.00
1.5
1.0
0.5
0.0
1.50
1.25
1.00
0.75
0.50
0.25
0.00
0.0
0
2.5
Vcc=2.6V
F=1kHz
THD+N<1%
Cb = 1 μ F
F = 1kHz
BW < 125kHz
Tamb = 25 ° C
voltage
25
3.0
AMR Value
Ambiant Temperature ( C)
0.1
Output Power (W)
50
3.5
Vcc (V)
RL=16 Ω
with 4 layers PCB
75
4.0
8 Ω
0.2
RL=8 Ω
100
16 Ω
4.5
TS4994
32 Ω
5.0
125
0.3

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