參數(shù)資料
型號: BD6155FVM
廠商: Rohm CO.,LTD.
英文描述: DC/DC converter for LCD back light
中文描述: 直流/直流轉(zhuǎn)換器,用于LCD背光
文件頁數(shù): 1/8頁
文件大?。?/td> 111K
代理商: BD6155FVM
BD6155FVM
Communication ICs
DC/DC converter for LCD back light
BD6155FVM
1/7
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 V
F
. 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
Limits
Unit
Pd
350
25~
+
75
55~
+
125
mW
Power dissipation
Maximum supply voltage
V
BAT
V
0.3~
+
6.0
0.3~
+
6.0
Maximum input voltage
V
IN
V
Topr
°
C
°
C
Operating temperature
Storage temperature
Tstg
Reduce to 3.5mW/
°
C when Ta=25
°
C or above.
!
Recommended operating conditions
(Ta=25
°
C)
Parameter
Power supply
V
BAT
2.9
5.5
V
Symbol
Min.
Typ.
Max.
Unit
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