參數(shù)資料
型號(hào): R1218X
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): 12/14頁(yè)
文件大?。?/td> 321K
代理商: R1218X
R1218X
7.
PWM Dimming Control (6 LED)
VIN=3.6V,R1=10
7-1. Duty vs. LED Current (Topt=25
°
C)
12
7-2. Output Voltage Waveform (Topt=25
°
C)
8. VFB Voltage vs. Temperature
9. UVLO Detector Threshold/Released Voltage vs. Temperature
0
2.5
5
7.5
10
12.5
15
17.5
20
22.5
25
0
20
40
60
80
100
DUTY (%)
L
L
5kHz
1kHz
200Hz
R1218X062A
R1218X062A
0
10
20
30
40
50
0
0.04
0.08
0.12
0.16
0.2
Time (ms)
O
O
0
5
10
C
C
CE Input Voltage
Fosc=5kHz
Output Voltage
R1218X062A
0
10
20
30
40
50
0
0.8
1.6
2.4
3.2
4
Time (ms)
O
O
0
5
10
C
C
CE Input Voltage
Fosc=200Hz
Output Voltage
0.185
0.19
0.195
0.2
0.205
0.21
0.215
-50
-25
0
25
50
75
100
Temperature Topt (°C)
V
F
R1218x041A
V
IN
=3.6V
1.5
1.54
1.58
1.62
1.66
1.7
-50
-25
0
25
50
75
100
Temperature
Topt (
°
C)
U
U
R1218x041A
V
IN
=3.6V
UVLO Detector
UVLO Released
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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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