BD9206EFV Datasheet, PDF (4/13 Pages) Rohm – Simple Structure Constant Current Backlight Driver for LCD panels (Non-step type)

BD9206EFV
●Reference data(Unless specified,VCC=24V, Ta=25℃)
0.05
STBY=L
0.04
EN=L
0.03
0.02
0.01
0.00
0 4 8 12 16 20 24 28 32 36
VCC [V]
Fig..4-1 Circuit electric current
(at the time of OFF mode)
3.0
STBY=H
2.5
EN=L
2.0
1.5
1.0
0.5
0.0
0 4 8 12 16 20 24 28 32 36
VCC [V]
Fig..4-2 Circuit electric current
(at the time of stand by mode)
35
30
25
20
15
10
5
0
0 0.5 1 1.5 2 2.5 3 3.5
VSET [V]
Fig..4-4 VSET Constant electric
current Characteristics
10
9
Io=0mA
8
7
6
5
4
3
2
1
0
0 4 8 12 16 20 24 28 32 36
VCC [V]
Fig..4-7 VREG_VCC characteristic
8
7
6
5
4
3
2
1
0
0
0.5
1
1.5
2
2.5
3
VEN [V]
Fig..4-10 EN Threshold voltage
32
VSET=2V
28
24
20
16
12
8
4
0
0
1
2
3
4
5
6
VSET [V]
Fig..4-5 VLED Dependency of ILED
5.5
5.4
Io=0mA
5.3
5.2
5.1
5.0
4.9
4.8
4.7
4.6
4.5
-40 -20 0 20 40 60 80 100
TEMP [℃]
Fig..4-8 VREG temperature
characteristic
Technical Note
5
STBY=H
4
EN=H
3
2
1
0
0 4 8 12 16 20 24 28 32 36
VCC [V]
Fig..4-3 Circuit electric current
(at the time of operating mode)
24
VSET=2V
23
22
21
20
19
18
17
-40 -20
0 20 40 60
TEMP [℃]
80 100
Fig..4-6 Constant electric current
temperature characteristic
8
7
6
5
4
3
2
1
0
0
0.5
1
1.5
2
2.5
3
VSTBY [V]
Fig..4-9 STBY Threshold voltage
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4/12
2009.07 - Rev.A