UC3543M 电源监控电路_BDTIC代理TI 德州仪器UC3543M

UC3543M 电源监控电路

The monolithic integrated circuits contain all the functions necessary to monitor and control the output of a sophisticated power supply system. Over-voltage (O.V.) sensing with provision to trigger an external SCR "crowbar" shutdown; an undervoltage (U.V.) circuit which can be used to monitor either the output or to sample the input line voltage; and a third op amp/comparator usable for current sensing (C.L.) are all included in this device, together with an independent, accurate reference generator.

Both over- and under-voltage sensing circuits can be externally programmed for minimum time duration of fault before triggering. All functions contain open collector outputs which can be used independently or wire-or’ed together, and although the SCR trigger is directly connected only to the over-voltage sensing circuit, it may be optionally activated by any of the other outputs, or from an external signal

	UC3543M
	UC3543M
# of supplies monitored	1
Iq (Typ) (uA)	7000
Output Driver Type / Reset Output	Active-low,Open-drain
Reset Threshold Accuracy (%)	1
Time Delay (ms)	Programmable
VCC (Min) (V)	4.5
VCC (Max) (V)	40
Threshold Voltage 1 (typ) (Typ) (V)	2.5
Monitored Voltage 1 (typ) (Nom) (V)	Adjustable
Pin/Package	16CDIP
Rating	Military

UC3543M 特性

Includes Over-Voltage, Under-Voltage, and Current Sensing Circuits
Internal 1% AccurateReference
Programmable Time Delays
SCR "Crowbar" Drive of 300 mA
Remote Activation Capability
Optional Over-Voltage Latch
Uncommitted Comparator Inputs for Low Voltage Sensing (UC1544 Series Only)

UC3543M 芯片订购指南

器件	状态	温度 (oC)	价格（美元）	封装 \| 引脚	封装数量 \| 封装载体	丝印标记
UC3543J	ACTIVE	0 to 70	13.49 \| 100u	CDIP (J) \| 16	1 \| TUBE

UC3543M 质量与无铅数据

器件	环保计划*	铅/焊球涂层	MSL 等级/回流焊峰	环保信息与无铅 (Pb-free)	DPPM / MTBF / FIT 率
UC3543J	TBD	A42	N/A for Pkg Type	UC3543J	UC3543J

UC3543M 工具与软件

培训内容	型号	软件/工具类型
最常用开关模式电源的功率级设计器	POWERSTAGE-DESIGNER	分析软件