datasheet4u.com

900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf




Toshiba Electronic Components Datasheet

TB62731FU Datasheet

Step up DC-DC converter

No Preview Available !

TB62731FU pdf
TOSHIBA BiCD Digital Integrated Circuit Silicon Monolithic
TB62731FU
TB62731FU
Step-up DC-DC Converter for White LED Driver
The TB62731FU is an LED driver which uses a high power
efficiency step-up DC-DC converter. The converter turns on/off
from 2 to 6 white LEDs in series.
The IC incorporates an N-channel MOSFET transistor which
switches a coil. Also, a function which reduces LED current
depending on 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.
Weight: 0.016 g (typ.)
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.) @VIN = 3.2~5.5 V
Built-in low Ron power MOS switch
Pin assignment (top view)
K
GND
SHDN
A
GND
VCC
1 2006-06-14


Toshiba Electronic Components Datasheet

TB62731FU Datasheet

Step up DC-DC converter

No Preview Available !

TB62731FU pdf
Block Diagram
VCC
A
OSC
350 kHz
SHDN
STB
SRQ
Buffer
REF
i (add)
i (sub)
A
TB62731FU
K
GND
GND
Pin Functions
No Symbol
Function
1
K
Pin connecting LED cathode to resistor used to set current.
Feedback pin for voltage waveforms for controlling LED constant current.
2, 5 GND Ground pin for logic
3
SHDN
IC enable pin.
When Low, Standby Mode and pin A turned off.
4
VCC
Input pin for power supply for operating the IC.
Operating voltage range: 3.0~5.5 V
6
A
DC-DC converter switch pin.
The switch is an N-channel MOSFET transistor.
Note: Connect both GND pins to ground.
2 2006-06-14


Part Number TB62731FU
Description Step up DC-DC converter
Maker Toshiba
Total Page 19 Pages
PDF Download
TB62731FU pdf
TB62731FU Datasheet PDF
[partsNo] view html
View PDF for Mobile








Similar Datasheet

1 TB62731FU Step up DC-DC converter Toshiba
Toshiba
TB62731FU pdf





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z

Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy