參數(shù)資料
型號: TB62731FUG
廠商: Toshiba Corporation
元件分類: LED驅動器
英文描述: Step-up DC-DC Converter for White LED Driver
中文描述: 升壓型DC - DC轉換器,用于白光LED驅動器
文件頁數(shù): 1/20頁
文件大?。?/td> 250K
代理商: TB62731FUG
TB62731FUG
2006-06-14
1
TOSHIBA BiCD Digital Integrated Circuit Silicon Monolithic
TB62731FUG
Step-up DC-DC Converter for White LED Driver
The TB62731FUG is an LED driver that uses a high power
efficiency step-up DC-DC converter. The converter turns on/off 2
to 6 white LEDs in series.
The IC incorporates an N-channel MOSFET transistor used for
coil-switching and a function that reduces the LED current in
response to increase in temperature.
The mean LED current can be easily set using an external
resistor.
The IC is ideal as a driver for LED light sources used as liquid
crystal backlights for PDAs, cellular phones, and handy
terminals.
The suffix (G) appended to the part number represents a Lead
(Pb) -Free product.
Features
Maximum output voltage: Vo
28 V
Mean LED current values set according to external resistor
14 mA (typ.) @R_sens = 2.7
20 mA (typ.) @R_sens = 1.8
Supply power: Up to 320 mW supported
Compact package: SSOP6-P-0.95B, 6 pins
Built-in temperature derating function: LED current derated automatically depending on temperature
High power efficiency
Up to 80% of peak power efficiency achieved using recommended components
Ron = 2.0
(typ.) @V
IN
= 3.2~5.5 V
Built-in low Ron power MOS switch
Pin assignment
(top view)
Weight: 0.016 g (typ.)
K
GND
SHDN
A
GND
V
CC
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