TS4990IST STMicroelectronics, TS4990IST Datasheet - Page 13

• 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

TS4990
Figure 32. Power dissipation vs. P
Figure 34. Clipping voltage vs. power supply
Figure 36. Clipping voltage vs. power supply
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0.0
Vcc=3.3V
F=1kHz
THD+N<1%
Tamb = 25 ° C
Tamb = 25 ° C
voltage and load resistor
voltage and load resistor
2.5
2.5
0.1
RL=16 Ω
0.2
3.0
3.0
Power supply Voltage (V)
Power supply Voltage (V)
Output Power (W)
0.3
3.5
3.5
RL = 4 Ω
RL = 8 Ω
RL = 4 Ω
0.4
RL = 8 Ω
4.0
4.0
0.5
RL = 16 Ω
RL = 16 Ω
RL=8 Ω
out
RL=4 Ω
4.5
4.5
0.6
0.7
5.0
5.0
Figure 33. Power derating curves
Figure 35. Power dissipation vs. P
Figure 37. Current consumption vs. power
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0.00
1.2
1.0
0.8
0.6
0.4
0.2
0.0
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0.0
0
0
No load
Tamb=25 ° C
Vcc=2.6V
F=1kHz
THD+N<1%
supply voltage
25
No Heat sink
1
0.1
RL=16 Ω
Ambiant Temperature ( C)
Power Supply Voltage (V)
50
Output Power (W)
2
Electrical characteristics
Heat sink surface ≈ 100mm
(See demoboard)
75
0.2
RL=8 Ω
3
100
0.3
out
4
125
RL=4 Ω
2
150
0.4
5
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