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GM1937 데이터 시트보기 (PDF) - Gamma Microelectronics Inc.
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GM1937
WHITE LED STEP-UP CONVERTER
Gamma Microelectronics Inc.
GM1937 Datasheet PDF : 9 Pages
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GM1937
WHITE LED STEP-UP CONVERTER
Electrical Characteristics
(T
A
= 25
℃
, V
cc
= 3V, V
CE
= 3V, unless otherwise noted)
Parameter
Symbol
Condition
Min Typ Max Unit
Feeback Voltage
FB Pin Bias Current
V
FB
I
SW
= 100mA, Duty Cycle = 66% 86
IFB
10
95 104 mV
45 100 nA
Supply Current
Switching Frequency
Maximum Duty Cycle
Switch Current Limit
Switch V
CESAT
Switch Leakage current
CE Voltage High
I
CC(ON)
I
CC(OFF)
f
SW
D
MAX
I
SW
V
SAT
I
LEAK
V
CE
= 0V
I
SW
= 250mA
V
SW
= 5V
1.9 2.5 mA
0.1 1.0
µ
A
0.8 1.2 1.6 MHz
85 90
%
320
mA
350
mV
0.00
1
5
µ
A
1.5
V
CE Voltage Low
0.4 V
CE Pin Bias Current
I
CE
65
µ
A
4
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