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參數(shù)資料
| 型號： | MC33365 |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Isolated Flyback Switching Regulator with 9V Output |
| 中文描述： | 隔離反激式開關(guān)穩(wěn)壓9V輸出 |
| 文件頁數(shù)： | 6/12頁 |
| 文件大?。?/td> | 233K |
| 代理商： | MC33365 |
MC33365
6
MOTOROLA ANALOG IC DEVICE DATA
00
Figure 15. P Suffix (DIP–16) Thermal Resistance and
Maximum Power Dissipation versus P.C.B. Copper Length
100
L
Graphs represent symmetrical layout
3.0 mm
Printed circuit board heatsink example
L
80
60
40
20
10
20
30
40
50
L, LENGTH OF COPPER (mm)
PD
5.0
4.0
3.0
2.0
1.0
0
PD(max) for TA = 70
°
C
Copper
R
θ
JA
R
θ
,
J
J
°
PIN FUNCTION DESCRIPTION
Pin
Function
Description
áááááááááááááááááááááááááááááááá
á
á
áááááááááááááááááááááááááááááááá
áááááááááááááááááááááááááááááááá
á
ááááááááááááááááááááááááááááááááá
á
ááááá
á
áááááááááááááááááááááááááááááááá
á
ááááááááááááááááááááááááááááááááá
áááááááááááááááááááááááááááááááá
á
á
ááááááááááááááááááááááááááááááááá
á
ááááááááááááááááááááááááááááááááá
á
ááááááááááááááááááááááááááááááááá
ááá
ááá
á
1
á
áááá
áááá
ááá
á
ááááááááááááááááááááááááá
Regulator Output
of at least 1.0
μ
F for stability.
Startup Input
á
á
an external capacitor that connects from the V
pin to ground.
ááááááááááááááááááááááá
ááááááááááááááááááááááá
áááá
á
á
This pin connects directly to the rectified ac line voltage source. Internally Pin 1 is tied to the drain
á
á
the V
CC
potential on Pin 3.
áááááááááááááááááááááááááááááááá
3
VCC
ááááááááááááááááááááááá
This is the positive supply voltage input. During startup, power is supplied to this input from Pin 1.
R
T
ááááááááááááááááááááááá
programs the Oscillator frequency.
á
path from the die to the printed circuit board.
áááááááááááááááááááááááááááááááá
ááá
ááá
ááá
ááá
ááá
áááááááááááááááááááááááááááááááá
ááá
ááá
6
á
ááááááááááááááááááááááá
Resistor RT connects from this pin to ground. The value selected will program the Current Limit
á
áááá
Compensation
áááá
áááá
Bulk OK Input
áááá
áááá
Drain
áááá
á
output.
T
á
á
á
This pin is the Error Amplifier output and is made available for loop compensation. It can be used as
ááááááááááááááááááááááá
á
9
á
á
á
á
This is the non–inverting input of the bulk capacitor voltage comparator. It has an input threshold
ááááááááááááááááááááááá
ááááááááááááááááááááááá
ááááááááááááááááááááááá
Power Switch Drain, and the ground potential on Pins 12 and 13.
á
á
11
á
á
ááááááááááááááááááááááá
maximum of 700 V and 1.0 A.
á
á
á
á
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