SC440MLTRT Semtech, SC440MLTRT Datasheet - Page 7

• Manufacturer Part Number: SC440MLTRT
• Description: IC LED DRVR WHITE BCKLGT 24-MLPQ
• Manufacturer: Semtech
• Type: Backlight, White LEDr

Specifications of SC440MLTRT

• Constant Current: Yes
• Topology: PWM, Step-Up (Boost)
• Number Of Outputs: 6
• Internal Driver: Yes
• Type - Primary: Backlight
• Frequency: 640kHz ~ 960kHz
• Voltage - Supply: 4.5 V ~ 21 V
• Voltage - Output: 40V
• Mounting Type: Surface Mount
• Package / Case: 24-MLPQ
• Current - Output / Channel: 30mA
• Internal Switch(s): Yes
• Efficiency: 91%
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Operating Temperature: -
• Other names: SC440MLTR

Typical Characteristics (continued)
© 2010 Semtech Corp.
SW
10V/DIV
VOUT (AC)
50mV/DIV
VIN
5V/DIV
SS
2V/DIV
VOUT
20V/DIV
IO1
0.5V/DIV
Main Power Switching Waveform
Conditions: VIN=5V, Load = 30mA x 6 strings,
8 LEDs per string
Conditions: VIN=5V, Load = 30mA x 6 strings,
8 LEDs per string
NOT RECOMMENDED FOR NEW DESIGNS: SEE SC440A
Start up
Time (10ms/DIV)
Time (0.5us/DIV)
SW
10V/DIV
VOUT (AC)
50mV/DIV
VIN
2V/DIV
VOUT
10V/DIV
IO1
5V/DIV
Main Power Switching Waveform
Conditions: VIN=5V, Load = 30mA x 6 strings,
8 LEDs per string
Conditions: VIN=12V, Load = 30mA x 6 strings,
8 LEDs per string
Shut down
Time (10ms/DIV)
Time (0.5us/DIV)
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