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:
D Wide range of regulating input line voltage: AC 80V to 280V
D The output power transistor is doubly protected by the current limitter and the shut down circuit
D No visual noise due to horizontal synchronous operation
D A terminal for remote control, timer operation and etc. of the power supply is provided
D Shut down circuit is easily resetable using ON/OFF terminal
D Low stand–by and starting current
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Supply Current, I8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30mA
Sink of Output Terminal, I7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10mA
Input Voltages of Current Limitter, V5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.0V
Input Voltage ON/OFF Circuit, V4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V8V
Sink of ON/OFF Circuit, I3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5mA
Input Voltages of Duty Limit Circuit, V2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V8 V
External Oscillation Resistor, RO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5kΩ to ∞
External Oscillation Capacitor, CO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0µF to 1µF
Input Voltage of Error Amplifier, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V8 V
Reference Voltage, V14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V8 V
Drain of Error Amplifier, I13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –2mA to 0mA
Input Voltage of Shut Down Circuit, V12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V8 V
Integration Voltage of Shut Down Circuit, V6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V8 V
Power Dissipation (TA = +75°C), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150mW
Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +75°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +125°C
5秒后页面跳转
MAX7219驱动8段数码管详解及数据手册关键信息
ATMEGA328P技术资料深入分析
AT24C02芯片手册管脚信息、参数分析、应用领域详解
AT24C256芯片手册参数分析、引脚说明、读写程序示例
微信公众号
抖音公众号
浙公网安备 33010502006866号 浙ICP备10014259号-119
营业执照ICP证
数据手册
如果您发现信息不准确，
