參數(shù)資料
型號: R1218XXX2A
廠商: Ricoh Co., Ltd.
英文描述: Step-up DC/DC converter for Whilte LED Backlight
中文描述: 升壓直流/直流轉(zhuǎn)換器Whilte LED背光
文件頁數(shù): 4/14頁
文件大?。?/td> 321K
代理商: R1218XXX2A
R1218X
PLP1820-6
4
Pin No
Symbol
Pin Description
1
CE
Chip Enable Pin
2
V
FB
Feedback Pin
3
Lx
Switching Pin (Open Drain Output)
4
GND
Ground Pin
5
V
IN
Power Supply Input Pin
6
V
OUT
Output Voltage
ABSOLUTE MAXIMUM RATINGS
Symbol
Item
Rating
Unit
V
IN
V
IN
Pin Voltage
6.5
V
V
CE
CE Pin Voltage
-0.3 to V
IN
+0.3
V
V
FB
V
FB
Pin Voltage
-0.3 to V
IN
+0.3
V
R1218XXX1A
-0.3 to 22.0
V
OUT
V
OUT
Pin Voltage
R1218XXX2A
-0.3 to 32.0
V
R1218XXX1A
-0.3 to 22.0
V
LX
Lx Pin Voltage
R1218XXX2A
-0.3 to 32.0
V
I
LX
Lx Pin Current
1000
mA
R1218NXXXA suspended in air
250
P
D
Power Dissipation
R1218KXXXA*Note1
880
mW
Topt
Operating Temperature Range
-40 to +85
°
C
°
C
Tstg
Storage Temperature Range
-55 to 125
(*Note 1) Mounted on board. Conditions: Board material: FR4 Board Dimensions: 40*40*1.6(mm), Double layer,
Wiring Ratio=50%(Both sides), Thermal via: 0.54mm*30pcs, Wind velocity: 0m/s
ELECTRICAL CHARACTERISTICS
Common
(Topt=25
°
C)
Symbol
Item
Conditions
MIN.
TYP.
MAX.
Unit
V
IN
Operating Input Voltage
1.8
5.5
V
I
IN
Supply Current
V
IN
=5.5V, V
FB
=0V, Lx at no load
0.5
1.0
mA
I
STB
Standby Current
V
IN
=5.5V, V
CE
=0V
0.0
3.0
μ
A
V
V
UVLO1
UVLO Detector Threshold
V
IN
falling
1.5
1.6
1.7
V
UVLO2
UVLO Released Voltage
V
IN
rising
V
UVLO1
+0.1
1.8
V
V
CEH
CE “H” Input Voltage
V
IN
=5.5V
1.5
V
V
CEL
CE “L” Input Voltage
V
IN
=1.8V
0.5
V
R
CE
CE Pull Down Resistance
V
IN
=3.6V
600
1200
1600
k
ms
Tshudn
CE Shutdown Delay
V
IN
=3.6V
10
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