MC34271FB View Datasheet(PDF) - ON Semiconductor
Part Name
Description
Manufacturer
MC34271FB Datasheet PDF : 12 Pages
| |||
MC34271
Figure 13. EL PANEL Drive Circuit
Vin 6.0 V
2.2 M
160 k
8.25 k
MC34271
SW1
32
Circuit #1 Bias Supply
En
EN1
ÎÎÎ 26
VDD
S
Q
R
÷N
8 Drv1
÷2
31 Sync
OSC
9.1 k 30 RT
Vref
Vref
0.1 27 1.25 V
µF
S
2 Ref1
Q
R
D1
7
S1 6
ELD 400 Hz
9
0.1
µF
VDD
11
Mode
10
D2
18
S2 19
+
10 µF
MR856
8
0.22 µF
200 V
34
4T 4T
#36 #36
65
120T
1 #36
15 k
7 MPSA44
120T
#36
2
1.0 k
MR856
EL
PANEL
10
MTP3055EL
2.2 k
4.3 M 15 pF 3 FB1
22 k
4 Comp1
SS1
1.0 k
0.1 µF 5
10 k MMBT2907
DS1
1
1.0 k DAC
Ref2
23
VB
22 FB2
Comp2
21 SS2
20
8.2 k
DS2
24
25 EN2
VA
28
BIAS
Gnd
29
ÎÎÎVDD
VDD2
Circuit #2
Bias Supply
VB
VB
17
V0
V0
16
V1
15
V2
14
VDD2
V3
13
VDD2
V4
12
V1
V2
V3
LCD
Display
V4
NOTES::1. Transformer information TDK Core # PC40EEM12.7/13.7–Z
Bobbin # BEPC–10–118G 2 mil gap. LP = 1.6 µhy.
2. EL PANEL: DUREL™ 3/SL ORANGE
http://onsemi.com
9
Share Link: 