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SC622A bảng dữ liệu(PDF) 5 Page - Semtech Corporation

tên linh kiện SC622A
Giải thích chi tiết về linh kiện  LED Light Management Unit Charge Pump, 400mA Flash LED, Dual LDOs, and I2C Interface
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nhà sản xuất  SEMTECH [Semtech Corporation]
Trang chủ  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC622A bảng dữ liệu(HTML) 5 Page - Semtech Corporation

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SC622A
5
Electrical Characteristics (continued)
Parameter
Symbol
Conditions
Min
Typ
Max
Units
LDO Electrical Specifications (continued)
Load Regulation
ΔV
LOAD
V
LDO1
= 3.3V, V
IN
= 3.7V,
I
LDO1
= 1mA to 100 mA
25
mV
V
LDO2
= 1.8V, V
IN
= 3.7V,
I
LDO2
= 1mA to 100 mA
20
Dropout Voltage(3)
V
D
I
LDO1
= 100mA
100
150
mV
Current Limit
I
LIM
200
mA
Power Supply
Rejection Ratio
PSRR
LDO1
2.5V < V
LDO1
< 3V, f < 1kHz, C
BYP
= 22nF, I
LDO1
= 50mA,
V
IN
= 3.7V with 0.5V
P-P
ripple
50
dB
PSRR
LDO2
f < 1kHz, C
BYP
= 22nF, I
LDO2
= 50mA,
V
IN
= 3.7V with 0.5V
P-P
ripple
60
Output Voltage Noise
e
n-LDO1
LDO1, 10Hz < f < 100kHz, C
BYP
= 22nF, C
LDO
= 1μF,
I
LDO1
= 50 mA, V
IN
= 3.7V, 2.5V < V
LDO1
< 3V
100
μV
RMS
e
n-LDO2
LDO2, 10Hz < f < 100kHz, C
BYP
= 22nF,
C
LDO
= 1μF, I
LDO2
= 50 mA, V
IN
= 3.7V
50
Minimum Output Capacitor
C
LDO(MIN)
1μF
Digital I/O Electrical Specifications (FLEN, EN)
Input High Threshold
V
IH
V
IN
= 5.5V
1.6
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
1.6
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


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