TS4990IST STMicroelectronics, TS4990IST Datasheet - Page 12

• Manufacturer Part Number: TS4990IST
• Description: IC AMP AUDIO PWR 1.2W MONO 8MSOP
• Manufacturer: STMicroelectronics
• Type: Class ABr

Specifications of TS4990IST

• Output Type: 1-Channel (Mono)
• Max Output Power X Channels @ Load: 1.2W x 1 @ 8 Ohm
• Voltage - Supply: 2.2 V ~ 5.5 V
• Features: Depop, Differential Inputs, Standby, Thermal Protection
• Mounting Type: Surface Mount
• Package / Case: 8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
• For Use With: 497-6383 - BOARD DEMO FOR TS4990
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-4451-2

Electrical characteristics
12/32
Figure 26. Output power vs. power supply
Figure 28. Output power vs. load resistor
Figure 30. Output power vs. load resistor
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0.6
0.5
0.4
0.3
0.2
0.1
0.0
1.0
0.8
0.6
0.4
0.2
0.0
4
RL = 16 Ω
F = 1kHz
BW < 125kHz
Tamb = 25 ° C
2.5
voltage
8
8
THD+N=1%
THD+N=1%
3.0
12
Load Resistance ( )
Load Resistance ( )
THD+N=10%
3.5
THD+N=10%
THD+N=10%
16
16
Vcc (V)
4.0
20
THD+N=1%
4.5
24
24
Vcc = 3.3V
F = 1kHz
BW < 125kHz
Tamb = 25 ° C
Vcc = 2.6V
F = 1kHz
BW < 125kHz
Tamb = 25 ° C
5.0
28
5.5
32
32
Figure 27. Output power vs. load resistor
Figure 29. Output power vs. power supply
Figure 31. Power dissipation vs. P
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0.6
0.5
0.4
0.3
0.2
0.1
0.0
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0.0
4
RL = 32 Ω
F = 1kHz
BW < 125kHz
Tamb = 25 ° C
Vcc=5V
F=1kHz
THD+N<1%
2.5
voltage
0.2
8
THD+N=1%
3.0
0.4
12
Load Resistance ( )
THD+N=10%
0.6
3.5
Output Power (W)
THD+N=10%
16
RL=16 Ω
Vcc (V)
0.8
4.0
20
1.0
THD+N=1%
4.5
RL=8 Ω
24
RL=4 Ω
1.2
Vcc = 5V
F = 1kHz
BW < 125kHz
Tamb = 25 ° C
out
5.0
28
1.4
TS4990
5.5
1.6
32