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SC668 Datasheet(PDF) 5 Page - Semtech Corporation

Part # SC668
Description  8 LED Light Management Unit Automatic Dropout Prevention , Ambient Light Sense Input, PWM Dimming, and 4 LDOs
PDF  46 Pages
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Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC668 Datasheet(HTML) 5 Page - Semtech Corporation

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SC668
5
Electrical Characteristics (continued)
Parameter
Symbol
Conditions
Min
Typ
Max
Units
Digital Input Electrical Specifications (PWM, EN, SDA, SCL)
Input High Threshold (7) (8)
V
IH
V
IN = 5.5V
1.6
V
Input Low Threshold (7) (8)
V
IL
V
IN = 2.9V
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
PWM Input Specification (PWM)
PWM Input Frequency
f
PWM
0.2
50
kHz
I2C Interface
Interface complies with slave mode I2C interface as described by Philips I2C specification version 2.1 dated January, 2000.
Digital Input Voltage (7)
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
I/O Pin Capacitance
C
IN
10
pF
I2C Timing
Clock Frequency (7)
f
SCL
400
440
kHz
SCL Low Period (7) (8)
t
LOW
1.3
µs
SCL High Period (7) (8)
t
HIGH
0.6
µs
Data Hold Time (7) (8)
t
HD_DAT
0
µs
Data Setup Time (7) (8)
t
SU_DAT
100
ns
Setup Time for Repeated
START Condition (7) (8)
t
SU_STA
0.6
µs
Hold Time for Repeated
START Condition (7) (8)
t
HD_STA
0.6
µs
Setup Time for STOP Condition (7) (8)
t
SU_STO
0.6
µs
Bus-Free Time Between
STOP and START (7) (8)
t
BUF
1.3
µs
Interface Start-up Time (7) (8)
t
EN
Bus start-up time after EN pin is pulled high
900
µs



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