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參數(shù)資料
| 型號： | MC34271FB |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Internal power supply connectors (C-UL, TUV), Discrete wire connectors; HRS No: 680-1089-7 00; Connector Type: Wire; Contact Gender: Female; Termination Style: Crimping; Contact Mating Area Plating: Tin; Operating Temperature Range (degrees C): -35 to 85; General Description: Female contact |
| 中文描述： | 0.5 A DUAL SWITCHING CONTROLLER, 140 kHz SWITCHING FREQ-MAX, PQFP32 |
| 封裝： | PLASTIC, LQFP-32 |
| 文件頁數(shù)： | 9/12頁 |
| 文件大?。?/td> | 343K |
| 代理商： | MC34271FB |
MC34271
http://onsemi.com
9
Figure 13. EL PANEL Drive Circuit
R
S
Q
Vin 6.0 V
D1
S1
SW1
VDD
Sync
Drv1
EN1
ELD
Mode
R
S
Q
RT
SS1
Vref
1.25 V
Ref1
FB1
Comp1
Circuit #1 Bias Supply
VDD
En
OSC
D2
S2
VB
V0
V1
V2
V3
V4
VDD
Circuit #2
Bias Supply
Ref2
FB2
Comp2
SS2
DS2
EN2
VA
Gnd
BIAS
VB
V2
V3
V4
VDD2
VDD2
VDD2
160 k
16
15
14
13
12
19
18
17
10
11
9
6
7
32
26
8
31
30
27
2
3
4
5
23
22
21
20
24
25
28
29
LCD
Display
÷
2
÷
N
V1
V0
Vref
DS1
1
MC34271
DAC
VB
EL
PANEL
2.2 M
8.25 k
9.1 k
0.1
μ
F
4.3 M 15 pF
0.1
μ
F
8.2 k
1.0 k
400 Hz
0.1
μ
F
10
2.2 k
MTP3055EL
MR856
10
μ
F
4T
#36
4T
#36
6
5
3
4
MR856
8
7
0.22
μ
F
200 V
120T
#36
2
1
15 k
1.0 k
NOTES:
:1.Transformer information TDK Core # PC40EEM12.7/13.7–Z
Bobbin # BEPC–10–118G 2 mil gap. LP = 1.6
μ
hy.
2.EL PANEL: DUREL
3/SL ORANGE
+
MPSA44
120T
#36
10 k
1.0 k
22 k
MMBT2907
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