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参数资料
| 型号： | GM38C44D8T |
| 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： | 7/11页 |
| 文件大小： | 166K |
| 代理商： | GM38C44D8T |
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
ELECTRICAL CHARACTERISTICS
(T = -40°C to 85°C, Note 4, V
= 15V, C =3.3 nF, R =11kW, unless otherwise noted )
A
DD
T
TEST CONDITIONS
TYP
MAX
UNIT
CHARACTERISTICS
TEST CONDITIONS
MIN
Output Section
Undervoltage Lockout Section
PWM Section
Total Standby Current
R
High
DS(ON)
R
Low
DS(ON)
Start Threshold
Maximum Duty Cycle
Start - Up Current
Minimum Operating Voltage
Rise Time
Fall Time
I
= 200mA
SOURCE
GM38C42, GM38C44
V
= 13V for GM38C42, GM38C44
DD
V
= 7.5V for GM38C43, GM38C45
DD
I
= 200mA
SINK
T = 25°C, C = 1nF
AL
T = 25°C, C = 1nF
AL
20
14.5
96
50
9
11
8.4
50
7.6
40
30
80
60
W
A
ns
Minimum Duty Cycle
Operating Supply Current
Zener Voltage (V
)
DD
V
= V
= 0V
FB
ISNS
I
= 25 mA, Note 6
DD
4
37
0
6
%
mA
V
GM38C43, GM38C45
GM38C42, GM38C44
GM38C43, GM38C45
13.5
8
7.8
7.0
15.5
10
9.0
8.2
V
GM38C42, GM38C43
GM38C44, GM38C45
94
46
%
200
30
Note 1: These parameters, although guaranteed, are not 100% tested in production.
Note 2: Parameter measured at trip point of latch with V
= 0.
EA
Note 3: Gain defined as:
A =
; 0
V
(I
)
0.8V
TH
SNS
Note 4: Adjust V
above the start threshold before setting at 15V.
DD
Note 5: Output frequency equals oscillator frequency for the GM38C42 and GM38C43. Output frequency for the
GM38C44, and GM38C45 equals one half the oscillator frequency.
Note 6: On 8-pin version, 18V is maximum input on pin 7, as this is also the supply pin for the output stage.
DV
PIN1
V
(I
)
TH
SNS
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| GM38C44S8R | HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS |
| GM38C44S8T | HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS |
| GM38C44 | HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS |
| GM38C45D8T | HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| GM38C44S8R | 制造商:GAMMA 制造商全称:GAMMA 功能描述:HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS |
| GM38C44S8T | 制造商:GAMMA 制造商全称:GAMMA 功能描述:HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS |
| GM38C45 | 制造商:GAMMA 制造商全称:GAMMA 功能描述:HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS |
| GM38C45D8T | 制造商:GAMMA 制造商全称:GAMMA 功能描述:HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS |
| GM38C45S8R | 制造商:GAMMA 制造商全称:GAMMA 功能描述:HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS |
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