參數(shù)資料
型號(hào): R1218XXX1A
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(yè)數(shù): 5/14頁(yè)
文件大?。?/td> 321K
代理商: R1218XXX1A
R1218X
5
Symbol
Item
Conditions
MIN.
TYP.
MAX.
Unit
V
FB
V
FB
Voltage Tolerance
V
IN
=3.6V
0.19
0.20
0.21
V
V
FB
/
T
V
FB
Voltage Temperature
Coefficient
V
IN
=3.6V, -40
°
C
Topt
85
°
C
±
150
ppm
/
°
C
μ
A
μΑ
μΑ
mA
I
FB
V
FB
Input Current
V
IN
=5.5V, V
FB
=0V or 5.5V
-0.1
0.1
R
ON
Switch On Resistance
V
IN
=3.6V, I
SW
=100mA
1.5
0.0
0.0
700
1200
91
9.5
14.0
18.5
23.0
27.5
R1218XXX1A
V
LX
=20V
3.0
I
OFF
Switch Leakage Current
R1218XXX2A
V
LX
=29V
3.0
I
LIM
Switch Current Limit
V
IN
=3.6V
400
1000
f
OSC
Oscillator Frequency
V
IN
=3.6V, V
OUT
=V
FB
=0V
1000
1400
kHz
Maxduty
Maximum Duty Cycle
V
IN
=3.6V, V
OUT
=V
FB
=0V
86
%
R1218X021A
8.5
10.5
V
R1218X031A
13.0
15.0
V
R1218X041A
17.0
20.0
V
R1218X052A
21.5
24.5
V
V
OVP1
OVP Detector Threshold
V
IN
=3.6V
V
OUT
rising
R1218X062A
26.0
29.0
V
R1218X021A
V
OVP1
-0.5
V
OVP1
-0.75
V
R1218X031A
V
R1218X041A
V
OVP1
-1.0
V
R1218X052A
V
OVP1
-1.25
V
V
OVP2
OVP Released Voltage
V
IN
=3.6V
V
OUT
falling
R1218X062A
V
OVP1
-1.5
V
R1218XXX1A
Symbol
Item
Conditions
MIN.
TYP.
MAX.
Unit
V
F
Diode Forward Voltage
I
DIODE
=100mA
0.8
V
I
R
Diode Leakage Current
V
OUT
=20V, V
LX
=0V
10
μ
A
TEST CIRCUITS
Supply Current Test Circuit
UVLO Detector Threshold/ UVLO Released Voltage
V
IN
CE
GND
FB
V
IN
L
X
CE
GND
FB
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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