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参数资料
| 型号： | GM3843AD8T |
| 厂商： | American Power Management Inc. |
| 英文描述： | HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS |
| 中文描述： | 高性能电流模式PWM控制器 |
| 文件页数： | 17/19页 |
| 文件大小： | 304K |
| 代理商： | GM3843AD8T |
G
M
3
8
4
2
A
,
G
M
3
8
4
3
A
,
G
M
3
8
4
A
,
G
M
3
8
4
5
A
7
TYPICAL PERFORMANCE CHARACTERISTICS
90
80
70
60
50
40
1
2
3
5
R (kW)
T
Dmax
(%)
Figure 3. Maximum Output Duty Cycle vs.
Timing Resistor (GM3842A/43A)
V
= 15V
CC
C = 3.3nF
T =25°C
A
T
80
60
40
20
0
-20
10
100
1k
10k
100k
1M
f (Hz)
(dB)
Figure 4. Error Amp Open-Loop Gain vs.
Frequency
V
= 15V
CC
V = 2V to 4V
R = 100K
L
T
O
= 25°C
A
1.0
0.8
0.6
0.4
0.2
0
2
4
6
V (V)
O
Vth
(V)
Figure 5. Current Sense Input Threshold vs.
Error Amp Output Voltage
100
90
80
70
60
50
0
25
50
75
100 T (°C)
A
ISC
(mA)
Figure 6. Reference Short Circuit Current vs.
Temperature
V
= 15V
CC
T = 25°C
A
T = 125°C
A
-1
-2
3
2
1
0
200
400
600
I
(mA)
O
Vsat
(V)
Figure 7. Output Saturation Voltage vs.
Load Current T = 25°C
A
Sourse Saturation
(Load to Ground)
V
= 15V
CC
80s Pulsed Load 120Hz Rate
Sink Saturation
(Load to V
)
CC
Figure 8. Supply Current vs. Supply Voltage
20
15
10
5
0
10
20
30
V
(V)
CC
ICC
(mA) I
= 0V
Sense
V
R
= 0V
FB
= 10K
T
T = 25°C
A
C = 3.3nF
T
G
M
3
8
4
2
A
/
4
A
G
M
3
8
4
3
A
/
4
5
A
V
= 15V
CC
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相关代理商/技术参数 |
参数描述 |
|---|---|
| GM3843AS8R | 制造商:GAMMA 制造商全称:GAMMA 功能描述:CURRENT MODE PWM CONTROLLER |
| GM3843AS8T | 制造商:GAMMA 制造商全称:GAMMA 功能描述:HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS |
| GM3844A | 制造商:GAMMA 制造商全称:GAMMA 功能描述:HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS |
| GM3844AD8T | 制造商:GAMMA 制造商全称:GAMMA 功能描述:CURRENT MODE PWM CONTROLLER |
| GM3844AS8R | 制造商:GAMMA 制造商全称:GAMMA 功能描述:CURRENT MODE PWM CONTROLLER |
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