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MC34271FB データシートの表示(PDF) - ON Semiconductor
部品番号
コンポーネント説明
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MC34271FB
Liquid Crystal Display and Backlight Integrated Controller
ON Semiconductor
MC34271FB Datasheet PDF : 12 Pages
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MC34271
Representative Block Diagram
Vin
EL
Panel
EL
Control
µ
P Control
From DAC
VB
SW1
32
On/Off
EN1
26
VDD
Circuit #1
PWM
D1
7
S1
6
ELD
Drv1
9
8
÷
2
Sync 31
ELD
EN
OSC
VDD
VDD
11
Mode
Vin
RT 30
VRef
27
Ref1
2
FB1
3
Comp1
4
EN2
25
Vref
1.25 V
Circuit #2
PWM
10
D2
18 S2
19
VB
17
VB
Ref2
FB2 23
22
Comp2
V0
16
V0
V1
15
V1
21
VA = 5.0 V
28
BIAS
V2
V2
14
BIAS Output
Buffers
V3
13
V3
Gnd
29
V4
12
V4
This device contains 350 active transistors.
http://onsemi.com
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