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SC635 데이터시트(PDF) 3 Page - Semtech Corporation

부품명 SC635
상세설명  Charge Pump Flash LED Driver
PDF  12 Pages
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제조업체  SEMTECH [Semtech Corporation]
홈페이지  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC635 데이터시트(HTML) 3 Page - Semtech Corporation

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 2005SemtechCorp.
www.semtech.com
POWER MANAGEMENT
SC635
Parameter
Symbol
Conditions
Min
Typ
Max
Units
Flash Mode Start-up Time(1)
t
F-SU
t = 0 when FLASH goes high to I
OUT = 90%
of final value
1
ms
Flash Mode Pulse Duration
t
FLASH
3.3V < V
VIN < 4.2V
I
OUT = 200mA, VVOUT > 2.8V
indefinite
s
Spotlight Mode Start-up Time(1)
t
S-SU
t = 0 when CTRL goes high to I
OUT = 90%
of final value
1
ms
Oscillator Frequency
f
OSC
Device enabled
250
kHz
Oscillator Frequency Accuracy
D
f
OSC
-15
15
%
Short-circuit Output Current
Limit
I
SC
VOUT shorted to GND
465
mA
Input Current Limit
I
LIMIT
3.3V < V
VIN < 4.2V
1.0
2.1
A
Over-temperature Protection(1)
T
OT
150
°C
Hysteresis
10
Logic Input High Threshold
V
IH
FLASH, CTRL
1.5
V
Logic Input Low Threshold
V
IL
FLASH, CTRL
0.4
V
Logic Input High Current
I
IH
FLASH
1
20
35
µA
CTRL
2
40
70
Logic Input High Current
I
IL
FLASH, CTRL
0.1
2.0
µA
ISET Ripple Voltage(1)
V
ISET(P-P)
Spotlight mode - I
OUT = 80mA
25
mV
FLASH mode - I
OUT = 200mA
100
Notes:
(1)Guaranteedbydesign-nottestedinproduction.
ElectricalCharacteristics(Cont.)



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