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參數資料
| 型號： | MC34129P |
| 廠商： | MOTOROLA INC |
| 元件分類： | 穩壓器 |
| 英文描述： | HIGH PERFORMANCE CURRENT MODE CONTROLLERS |
| 中文描述： | 1 A SWITCHING CONTROLLER, 300 kHz SWITCHING FREQ-MAX, PDIP14 |
| 封裝： | PLASTIC, DIP-14 |
| 文件頁數： | 14/16頁 |
| 文件大?。?/td> | 347K |
| 代理商： | MC34129P |
MC34129 MC33129
14
MOTOROLA ANALOG IC DEVICE DATA
Figure 29. Isolated 2.0 W Flyback Regulator
T1: Primary = 35T #32 AWG
Feedback = 12T #32 AWG
Secondary
±
5 V = 7T #32 AWG
Gap = 0.004
″
, for Lp of 180
μ
H
Core = Ferroxcube 813E187–3C8
Bobbin = Ferroxcube E187PCB1–8
12
0.1
7
24k
470pF
6
5
4
2.5V
OSC
R
S
Q
1.25V
220k
13
14
8
9
10
11
1
2
Gnd
–5V/20mA
Vin = 20V to 48V
0.1
2.7k
1
2
6
5
4
10k
128kHz
Sync
MOC5007
2.2k
2N5551
100
1N5819
180
pF
2
0.1
140k
330
20k
T1
1N5819
5V/380mA
100
100
1N5819
MTP
2N20
100pF
100
+
–
+
–
+
–
+
–
+
–
+
–
+
1N5819
+
+
+
3
Test
Conditions
Results
Line Regulation 5.0 V
Vin = 20 V to 40 V, Iout 5.0 V = 380 mA, Iout –5.0 V = 20 mA
Vin = 30 V, Iout 5.0 V = 100 mA to 380 mA, Iout –5.0 V = 20 mA
Vin = 30 V, Iout 5.0 V = 380 mA, Iout –5.0 V = 20 mA
Vin = 30 V, Iout 5.0 V = 380 mA, Iout –5.0 V = 20 mA
= 1.0 mV
Load Regulation 5.0 V
= 15 mV
Output Ripple 5.0 V
150 mVpp
Efficiency
73%
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