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SC441DEVB Fiches technique(PDF) 7 Page - Semtech Corporation

No de pièce SC441DEVB
Description  High Efficiency Integrated Driver for 4-Strings of 150mA LEDs
PDF  21 Pages
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Fabricant  SEMTECH [Semtech Corporation]
Site Internet  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC441DEVB Fiches technique(HTML) 7 Page - Semtech Corporation

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SC441D
7
Typical Characteristics (continued)
Temperature (oC)
Efficiency ( P
BOOST_OUTPUT / PINPUT)
Boost Section Output Current (mA)
LED Current (mA)
LED Current Source Saturation Voltage
vs. LED Current
OVPIN Threshold Voltage
vs. Temperature
PWM Dimming Minimum Pulse Width
vs. PWM Dimming Frequency
PWM Dimming Minimum Pulse Width
vs. PWM Dimming Frequency
PWM Dimming Frequency (kHz)
Condition: VIN = 2V, VOUT = 26.7V / 0mA x 4
strings
PWM Dimming Minimum Duty Cycle
vs. PWM Dimming Frequency
PWM Dimming Frequency (kHz)
VIN = 2V
LED Current source saturation voltage vs led current
Led current (ma)
TA=25
Ovpin threshold voltage vs temperature
Temperature ( )
VIN=12V
efficiency
5VIN
12VIN
21VIN
PWM Dimming Minimum Duty Cycle
vs. PWM Dimming Frequency
PWM Dimming Frequency (kHz)
Condition: VIN = 2V, VOUT = 26.7V / 0mA x 4
strings
PWM Dimming Frequency (kHz)
Condition: VIN = 2V, VOUT = 32V / 50mA x 4
strings
Minimum pulse width vs frequency
Minimum pulse width vs frequency
Minimum duty cycle vs frequency
Minimum duty cycle vs frequency
Condition: VIN = 2V, VOUT = 32V / 50mA x 4
strings
0S4P



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