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参数资料
| 型号： | GM38C45S8R |
| 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： | 5/11页 |
| 文件大小： | 166K |
| 代理商： | GM38C45S8R |
PACKAGE PIN DESCRIPTION
FUNCTION
COMP
Compensation: Connect external Compensation network to modify the error amplifier
output.
PIN LEAD
1
FB
Feedback (Input): Error amplifier input .Feedback is 2.5Vat desired output voltage.
2
I
SNS
Current Sense (Input): Current sense comparator input. Connect to current sensing
resistor or current transformer.
3
R / C
TT
Timing Resistor / Timing Capacitor: Connect external RC network to select switching
frequency.
4
5
GND
OUT
Ground: Combined analog and power ground.
Power Output: Totem - pole output.
6
V
DD
Analog Supply (Input): Controller circuitry supply input. Return to analog ground (AGND).
5V Reference (Output): Connect external RC network.
V
REF
BLOCK DIAGRAM
7
8
G
M
3
8
C
4
2
,
G
M
3
8
C
4
3
,
G
M
3
8
C
4
,
G
M
3
8
C
4
5
3
PARAMETER
SYMBOL
VALUE
UNIT
30
mA
I
DD
ABSOLUTE MAXIMUM RATINGS
Supply Voltage(Note 6)
Switch Supply Voltage
Current Sense Voltage
Feedback Voltage
Output Current
Storage Temperature
18
- 0.3 to + 5.5
0.5
V
A
°C
V
DD
V
D
V
ISNS
V
FB
I
OUT
T
A
- 0.3 to + 5.5
- 50 to + 150
Zener Current
Operation at
16V may require special precautions(Note6)
V
DD
7
V
REF
8
R / C
TT
4
FB
2
35V
OUTPUT
6
5V
Reference
UVLO
Oscillator
2.5V
2R
R
S
R
+
-
+
Q
T
COMP
1
GND*
5
I
SNS
3
*
* 8 - lead versions only
-
+
PARAMETER
SYMBOL
VALUE
UNIT
150
T
J
OPERATING RATINGS
Junction Temperature
°C
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| GM38C45S8T | 制造商:GAMMA 制造商全称:GAMMA 功能描述:HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS |
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