SC440MLTRT Semtech, SC440MLTRT Datasheet - Page 8

• 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.
OVPIN
0.5V/DIV
SS
1V/DIV
FLAG
5V/DIV
SS
2V/DIV
FLAG
2V/DIV
VOUT
10V/DIV
Conditions: VIN=5V, Load = 30mA x 6 strings,
8 LEDs per string
Conditions: VIN=5V, Load = 30mA x 6 strings,
8 LEDs per string
OTP and OTP Recovery
NOT RECOMMENDED FOR NEW DESIGNS: SEE SC440A
Time (20ms/DIV)
Time (0.1S/DIV)
OVP
Io
50mA/DIV
VIN
5V/DIV
VOUT
5V/DIV
IO1
5V/DIV
PWM
2V/DIV
SW
20V/DIV
Conditions: VIN=5V, Load = 30mA x 6 strings,
8 LEDs per string
Conditions: VIN = 7V to 19V, slew rate is
645V/us, RIOSET = 4.53k, SCP_EN is
grounded. Loop parameters: 10k+4.7nF,
L = 4.7uH, Co = 10uF
VIN Adaptor Plug-in Case
PWM dimming
Time (0.1ms/DIV)
Time (5ms/DIV)
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