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BD6155FVM fiches techniques PDF

ROHM Semiconductor - DC/DC converter for LCD back light

Numéro de référence BD6155FVM
Description DC/DC converter for LCD back light
Fabricant ROHM Semiconductor 
Logo ROHM Semiconductor 





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BD6155FVM fiche technique
Communication ICs
BD6155FVM
DC/DC converter for LCD back light
BD6155FVM
BD6155FVM is an ideal IC to drive white LED used for the LCD back light of cellular phones, and PDA etc.
This IC incorporates charging pump step-up circuit to drive white LED with high VF. It also integrates a driver to drive
white LED with 4-step constant current. Only one external resistor can set the current value.
!Applications
Small portable appliances, such as cellular phones, PHS, PDA
Battery-powered equipments using the white LED.
!Features
1) Built-in charging pump step-up circuit.
2) Built-in constant current driver for LED. (Current value : 4 steps variable)
3) Ultra small MSOP8 package. (Height 0.9mm Max.)
!Absolute maximum ratings (Ta=25°C)
Parameter
Symbol
Maximum supply voltage
VBAT
Maximum input voltage
VIN
Power dissipation
Pd
Operating temperature
Topr
Storage temperature
Tstg
Reduce to 3.5mW/°C when Ta=25°C or above.
Limits
0.3~+6.0
0.3~+6.0
350
25~+75
55~+125
Unit
V
V
mW
°C
°C
!Recommended operating conditions (Ta=25°C)
Parameter
Power supply
Symbol
VBAT
Min.
2.9
Typ.
Max.
5.5
Unit
V
1/7

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