TYPICAL PERFORMANCE CHARACTERISTICS
Supply Current vs.Shutdown Voltage
5
V
+
= 3.6V
4
Supply Current(mA)
3
2
OFF
1
0
-1
0
1
2
Shutdown Voltage(V)
3
ON
Supply Current(mA)
5
4
3
V
+
= 3V
2
1
0
-1
0
1
2
Shutdown Voltage(V)
3
V
+
= 2.6V
Supply Current vs.Shutdown Voltage
V
+
= 5V
V
+
= 3.6V
Clipping(Dropout) Voltage vs.Supply Voltage
0.9
0.8
Dropout Voltage(V)
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0
1
2
3
4
Supply Voltage(V)
5
6
R
L
= 8Ω Bottom
Power Dissipation vs.Output Power
1
Power Dissipation (W)
R
L
= 4Ω Top
R
L
= 4Ω Bottom
R
L
= 8Ω Top
0.8
0.6
0.4
0.2
0
0
0.2
V
+
= 5V
R
L
= 8Ω
f = 1kHz
THD
≤
1.0%
0.4
0.6
Output Power (W)
0.8
1
Power Dissipation vs.Output Power
0.3
Power Dissipation(W)
0.25
0.2
0.15
0.1
0.05
0
0
0.1
0.2
0.3
0.4
0.5
Output Power(W)
V
+
= 3V
R
L
= 8Ω
f = 1kHz
THD
≤
1.0%
6
SGM4890
SGMICRO [ Shengbang Microelectronics Co, Ltd ]
