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SC628AEVB 数据表(PDF) 4 Page - Semtech Corporation

部件名 SC628AEVB
功能描述  LED Flash Driver Charge Pump with 1000mA Flash Mode, 275mA Spotlight Mode, and I2C Interface
PDF  21 Pages
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制造商  SEMTECH [Semtech Corporation]
网页  http://www.semtech.com
标志 SEMTECH - Semtech Corporation

SC628AEVB 数据表(HTML) 4 Page - Semtech Corporation

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SC628A
4
Parameter
Symbol
Conditions
Min
Typ
Max
Units
Fault Protection (continued)
Undervoltage Lockout
V
UVLO
Increasing V
IN
2.7
V
V
UVLO-HYS
Hysteresis
800
mV
Charge Pump Electrical Specifications
Maximum Total Output
Current
I
OUT(MAX)
V
IN
> 3.5V, V
OUT(MAX)
= 4.0V
1000
mA
Flash Current Settling Time
t
FL_SET
maximum time for current to settle
1
ms
Flash Current Setting
I
FL
Nominal setting for FL
25
1000
mA
Flash Current Accuracy
I
FL_ACC
V
IN
= 3.7V, I
FL
= 450mA, T
A
= 25°C
-13
± 5
13
%
1x Mode to 1.5x Mode
Falling Transition Voltage
V
TRANS1x
I
OUT
= 150mA, V
OUT
= 3.3V
3.37
V
1.5x Mode to 2x Mode
Falling Transition Voltage
V
TRANS1.5x
I
OUT
= 150mA, V
OUT
= 4.5V(2)
3.3
V
Current Sink Off-State
Leakage Current
I
BLn
V
IN
= V
FL
= 4.2V
0.1
1
μA
Pump Frequency
f
PUMP
V
IN
= 3.2V
250
kHz
Digital I/O Electrical Specifications (FLEN, EN)
Input High Threshold
V
IH
V
IN
= 5.5V
1.4
V
Input Low Threshold
V
IL
V
IN
= 3.0V
0.4
V
Input High Current
I
IH
V
IN
= 5.5V
-1
+1
μA
Input Low Current
I
IL
V
IN
= 5.5V
-1
+1
μA
I2C Interface
Interface complies with slave mode I2C interface as described by Philips I2C specification version 2.1 dated January, 2000.
Digital Input Voltage
V
B-IL
0.4
V
V
B-IH
1.4
V
SDA Output Low Level
I
DIN
(SDA) ≤ 3mA
0.4
V
Digital Input Current
I
B-IN
-0.2
0.2
μA
Hysteresis of
Schmitt Trigger Inputs
V
HYS
0.1
V
Maximum Glitch Pulse
Rejection
t
SP
50
ns
I/O Pin Capacitance
C
IN
10
pF
Electrical Characteristics (continued)



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