R1218XXX1A RICOH [RICOH electronics devices division], R1218XXX1A Datasheet - Page 14
R1218XXX1A
Manufacturer Part Number
R1218XXX1A
Description
Step-up DC/DC converter for Whilte LED Backlight
Manufacturer
RICOH [RICOH electronics devices division]
Datasheet
1.R1218XXX1A.pdf
(14 pages)
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14
15. OVP Transient Response (Topt=25 C)
16. Efficiency dependence on inductors
R1218X
12.5
35
30
25
20
15
10
7.5
2.5
5
0
15
10
90
85
80
75
70
65
60
55
50
5
0
0
0
0
OVP Voltage
20
R1218X021A
OVP Voltage
R1218X041A [Internal D iode Type]
20
5
LED Current I
40
R1218X062A
40
Time (ms)
Time (ms)
10
60
60
LED
[m A]
LQH 32CN 220K53
LQH 32CN 100K53
GLF2012T220K
GLF2012T100K
80
80
15
V
IN
=3.6V
100
100
20
25
20
15
10
5
0
0
20
OVP Voltage
R1218X041A
40
Time (ms)
60
80
100
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