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參數(shù)資料
| 型號(hào)： | NTE1678 |
| 廠商： | NTE Electronics, Inc. |
| 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(kāi)關(guān)穩(wěn)壓9V輸出 |
| 文件頁(yè)數(shù)： | 1/3頁(yè) |
| 文件大小： | 30K |
| 代理商： | NTE1678 |
NTE1678
Integrated Circuit
Switching Regulator for TV
Description:
The NTE1687 is a switching regulator integrated circuit in a 14–Lead DIP type package especially
designed for TV sets. This device can be used for both types of TV sets, insulated type and non–insu-
lated types.
The NTE1687 operates in synchronizing with the horizontal retrace pulse, so it does not generate any
visual noise in the picture on the CRT. The output transistor in the powersupply circuit is protected
doubly by the internal protection circuit for over load.
The ON/OFF operation of the power supply is able to operate easily without any mechanical relay
using the provided terminal, so timer operation, remote control, etc. are very easy.
Features:
Wide range of regulating input line voltage: AC 80V to 280V
The output power transistor is doubly protected by the current limitter and the shut down circuit
No visual noise due to horizontal synchronous operation
A terminal for remote control, timer operation and etc. of the power supply is provided
Shut down circuit is easily resetable using ON/OFF terminal
Low stand–by and starting current
Absolute Maximum Ratings:
(T
A
= +25
°
C unless otherwise specified)
Supply Current, I
8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sink of Output Terminal, I
7
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input Voltages of Current Limitter, V
5
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input Voltage ON/OFF Circuit, V
4
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sink of ON/OFF Circuit, I
3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input Voltages of Duty Limit Circuit, V
2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
External Oscillation Resistor, R
O
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
External Oscillation Capacitor, C
O
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input Voltage of Error Amplifier, V
I
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reference Voltage, V
14
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Drain of Error Amplifier, I
13
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input Voltage of Shut Down Circuit, V
12
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Integration Voltage of Shut Down Circuit, V
6
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Dissipation (T
A
= +75
°
C), P
D
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Temperature Range, T
opr
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Temperature Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
30mA
10mA
3.0V
V
8
V
1.5mA
V
8
V
5k
to
∞
0
μ
F to 1
μ
F
V
8
V
V
8
V
–2mA to 0mA
V
8
V
V
8
V
150mW
–20
°
to +75
°
C
–40
°
to +125
°
C
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