DatasheetsPDF.com |
CAT4237 Driver Datasheet PDFHigh Voltage CMOS Boost White LED Driver High Voltage CMOS Boost White LED Driver |
 
 
 
Part Number | CAT4237 |
---|---|
Description | High Voltage CMOS Boost White LED Driver |
Feature | www. DataSheet4U. com CAT4237 High Volta ge CMOS Boost White LED Driver Features • • • • • • • • • †¢ • Drives 6 to 8 White LEDs in serie s from 3V Up to 87% Efficiency Low Quie scent Ground Current 0. 6mA Adjustable O utput Current (up to 40mA) High Frequen cy 1MHz Operation High Voltage Power Sw itch Shutdown current less than 1µA Op en LED low power mode Automatic Shutdow n at 1. 9V (UVLO) Thermal shutdown prote ction Thin SOT23 5-Lead (1mm max height ) Product Description The CAT4237 is a DC/DC step-up converter that delivers an accurate constant current ideal for driving LEDs. Operation at a constant . |
Manufacture | Catalyst Semiconductor |
Datasheet |
![]() |
 
 
 
 
 
 
Part Number | CAT4237 |
---|---|
Description | High Voltage CMOS Boost White LED Driver |
Feature | CAT4237
High Voltage CMOS Boost
White L ED Driver
Description
The CAT4237 is a DC/DC step−up converter that delivers an accurate constant current ideal for driving LEDs. Operation at a constant switching frequency of 1 MHz allows the device to be used with small value ext ernal ceramic capacitors and inductor. LEDs connected in series are driven wit h a regulated current set by the extern al resistor R1. LED currents up to 40 m A can be supported over a wide range of input supply voltages from 2. 8 V to 5. 5 V, making the device ideal for batter y−powered applications. The CAT4237 h igh−voltage output . |
Manufacture | ON Semiconductor |
Datasheet |
![]() |
 
 
 
 
@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact) |