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SC5010 Datasheet(PDF) 5 Page - Semtech Corporation

Part # SC5010
Description  High Effi ciency 8-Channel LED Driver with I2C Interface and Phase-Shifted PWM Dimming
PDF  36 Pages
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Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC5010 Datasheet(HTML) 5 Page - Semtech Corporation

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SC5010
5
Electrical Characteristics (continued)
Parameter
Symbol
Conditions
Min
Typ
Max
Units
Current Sink (IO1 to IO8)
IOx Dimming Minimum Pulse Width
T
PWM(MIN)
F
PWM(LED)
= 100Hz - 30kHz
300
ns
ISET pin voltage
V
ISET
1.23
V
Regulation Voltage
V
IOn(REG)
Voltage of Regulating String
0.6
V
Current Sink Disable Threshold
V
IOn(DIS)
Checked at Power-up
0.6
V
Current Sink Rise/Fall Time (1)
t
RISE/FALL
R
ising edge from 10% to 90% of I
O(n)
25
ns
LED Current Accuracy
I
On(ACC%)
PWMI = 100%, T
A
= +25°C
19.7
20
20.3
mA
LED Current Matching (2)
I
On(MATCH)
PWMI = 100%, T
A
= +25 °C
±1
%
PWMI = 100%, T
A
= -40 °C to +85 °C
±2
%
I
On
Off Leakage Current
I
On(LEAK)
PWMI = 0V, EN = 0V, V
IO1
~ V
IO8
= 25V
0.1
1
μA
IO Switching Frequency
F
PWM(IO)
FAST_FREQ = 0
10
kHz
FAST_FREQ = 1 (Default Setting)
20
Phase Delay Time between IO Pins
(IO1 to IO8)
t
PD
FAST_FREQ = 1 (default setting)
t
PD
= (1/8)*(1/F
PWM(IO)
), 8 Strings On
6.25
μs
PWM Output Resolution
F
PWM(IO)
= 10kHz
10
bits
F
PWM(IO)
= 20kHz
9
Fault Protection
LED Short Circuit Protection Threshold
V
IOn(SCP)
R
4
and R
5
(3)
17xV
SCP
20xV
SCP
23xV
SCP
V
LED Open Circuit Protection Threshold
V
IO_OCP
0.2
V
LED Short Circuit Fault Delay
t
SCP(DELAY)
V
OVP
set to 1.5V, FLT goes low
1
μs
FLT Pin Leakage Current
I
FLT(LEAK)
V
EN
= 0V, V
FLT
= 5.0V
-1
1
μA
FLT Output Low
V
FLT(LOW)
-5mA from FLT to V
CC
0.3
V
Over-Temperature Protection
Thermal Shutdown Temperature
150
°C
Thermal Shutdown Hysteresis
10
°C



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