SC440MLTRT Semtech, SC440MLTRT Datasheet - Page 10

• 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

Block Diagram
© 2010 Semtech Corp.
SCP_EN
OVPRTN
IOGND
FFLAG
OVPIN
IOSET
VOUT
IO3
IO1
IO6
IO5
IO4
IO2
SS
LED CURRENT
SETTING
NOT RECOMMENDED FOR NEW DESIGNS: SEE SC440A
ONE IO CHANNEL SHOWN
CIRCUIT PROTECTION
Detect
LED OPEN / SHORT
OVP
HICCUP
OVP
Fault
CURRENT
SOURCE
5uA
4uA
3V3
Figure 1. SC440 Block Diagram
DISABLE1
FAULT-1
CONTROL
HICCUP
LOGIC
HICCUP
HICCUP
I to V
Fault
TSD
UVLO
-
OSC
ILIM
ISENSE
UVLO & TSD
SS
S
R
Bandgap
Q
-
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-
SC440
SW
SW
PGND
PGND
PWM
VIN
EN
AGND
COMP
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