SC4538ULTRT Semtech, SC4538ULTRT Datasheet - Page 9

• Manufacturer Part Number: SC4538ULTRT
• Description: IC LED DRIVR WHITE BCKLGT MLPD-8
• Manufacturer: Semtech
• Type: Backlight, White LEDr

Specifications of SC4538ULTRT

• Constant Current: Yes
• Topology: PWM, Step-Up (Boost)
• Number Of Outputs: 1
• Internal Driver: Yes
• Type - Primary: Backlight
• Frequency: 680kHz ~ 920kHz
• Voltage - Supply: 2.8 V ~ 5.5 V
• Voltage - Output: 5 V ~ 38 V
• Mounting Type: Surface Mount
• Package / Case: MLPD-8
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 30mA
• Internal Switch(s): Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Efficiency: -
• Other names: SC4538ULTR

Block Diagram
EN
BL
IN
8
2
6
UVLO
Reference and
Regulator
Internal
Shutdown
Thermal
ADJ
OSC
EN
Setpoint
ISET
S
LED
3
OVP
OUT
5
R
Comparator
Q
ADJ
and Summation
Error Signal
Selection
Sense Amp
RSENSE
SC4538
1
7
4
GND
COMP
LX
9