UC3903J

更新时间： 2024-11-25 12:01:43

品牌	Logo	应用领域
德州仪器 - TI		电源电路电源管理电路监视器
页数	文件大小	规格书
16页	808K
描述
Quad Supply and Line Monitor

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技术参数
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UC3903J 技术参数

是否无铅：	含铅	是否Rohs认证：	不符合
生命周期：	Obsolete	零件包装代码：	DIP
包装说明：	CERAMIC, DIP-18	针数：	18
Reach Compliance Code：	not_compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.83
Is Samacsys：	N	可调阈值：	YES
模拟集成电路 - 其他类型：	POWER SUPPLY SUPPORT CIRCUIT	JESD-30 代码：	R-GDIP-T18
长度：	22.606 mm	信道数量：	4
功能数量：	1	端子数量：	18
最高工作温度：	70 °C	最低工作温度：
封装主体材料：	CERAMIC, GLASS-SEALED	封装代码：	DIP
封装等效代码：	DIP18,.3	封装形状：	RECTANGULAR
封装形式：	IN-LINE	峰值回流温度（摄氏度）：	NOT SPECIFIED
认证状态：	Not Qualified	座面最大高度：	5.08 mm
子类别：	Power Management Circuits	最大供电电流 (Isup)：	18 mA
最大供电电压 (Vsup)：	40 V	最小供电电压 (Vsup)：	8 V
标称供电电压 (Vsup)：	15 V	表面贴装：	NO
技术：	BIPOLAR	温度等级：	COMMERCIAL
端子形式：	THROUGH-HOLE	端子节距：	2.54 mm
端子位置：	DUAL	处于峰值回流温度下的最长时间：	NOT SPECIFIED
宽度：	7.62 mm	Base Number Matches：	1

UC3903J 数据手册

UC1903

UC2903

UC3903

www.ti.com ........................................................................................................................................ SLUS233A–OCTOBER 1999–REVISED SEPTEMBER 2008

Quad Supply and Line Monitor

FEATURES

DESCRIPTION

•

Inputs for Monitoring up to Four Separate

Supply Voltage Levels

The UC1903 family of quad supply and line monitor

integrated circuits will respond to under- and

over-voltage conditions on up to four continuously

monitored voltage levels. An internal op-amp inverter

allows at least one of these levels to be negative. A

separate line/switcher sense input is available to

provide early warning of line or other power source

failures.

Internal Inverter for Sensing a Negative Supply

Voltage

Line/Switch Sense Input for Early Power

Source Failure Warning

Programmable Under- and Over-Voltage Fault

Thresholds with Proportional Hysteresis

The fault window adjustment circuit on these devices

provides easy programming of under- and

over-voltage thresholds. The thresholds, centered

around a precision 2.5-V reference, have an input

hysteresis that scales with the window width for

precise, glitch-free operation. A reference output pin

allows the sense input fault windows to be scaled

independently using simple resistive dividers.

•

A Precision 2.5-V Reference

General Purpose Op-Amp for Auxiliary Use

Three High Current, >3 0mA, Open-Collector

Outputs Indicate Over-Voltage, Under-Voltage

and Power OK Conditions

•

8-V to 40-V Supply Operation with 7-mA

Stand-By Current

The three open collector outputs on these devices

sink in excess of 30 mA of load current when active.

The under- and over-voltage outputs respond after

separate, user defined, delays to respective fault

conditions. The third output is active during any fault

condition including under- and over-voltage,

line/switcher faults, and input supply under-voltage.

The off state of this output indicates a "power OK"

situation.

BLOCK DIAGRAM

Note: Pin numbers refer to J, N and DW packages.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...16

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UC3903J 替代型号

型号	品牌	替代类型	描述	数据表
UC3903NG4	TI	完全替代	Quad Supply and Line Monitor
UC3903N	TI	完全替代	Quad Supply and Line Monitor
UC2903J	TI	类似代替	Quad Supply and Line Monitor

与UC3903J相关器件

型号	品牌	获取价格	描述	数据表
UC3903L	ETC	获取价格	Industrial Control IC
UC3903N	TI	获取价格	Quad Supply and Line Monitor
UC3903NG4	TI	获取价格	Quad Supply and Line Monitor
UC3903Q	TI	获取价格	Quad Supply and Line Monitor
UC3903QG3	TI	获取价格	Quad Supply and Line Monitor
UC3903QTR	ETC	获取价格	Voltage Detector
UC3904	TI	获取价格	Precision Quad Supply and Line Monitor
UC3904DW	TI	获取价格	Precision Quad Supply and Line Monitor
UC3904DWTR	TI	获取价格	Precision Quad Supply and Line Monitor
UC3904J	ETC	获取价格	Analog IC

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