Datasheet > UC1904J

UC1904J

更新时间： 2024-11-14 20:29:27

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
6页	306K
描述
4-CHANNEL POWER SUPPLY SUPPORT CKT, CDIP18, CERAMIC, DIP-18

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UC1904J 技术参数

是否Rohs认证：	不符合	生命周期：	Obsolete
零件包装代码：	DIP	包装说明：	DIP, DIP18,.3
针数：	18	Reach Compliance Code：	not_compliant
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.46	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	信道数量：	4
功能数量：	1	端子数量：	18
最高工作温度：	125 °C	最低工作温度：	-55 °C
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	最大供电电压 (Vsup)：	18 V
最小供电电压 (Vsup)：	4.75 V	标称供电电压 (Vsup)：	15 V
表面贴装：	NO	技术：	BIPOLAR
温度等级：	MILITARY	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

UC1904J 数据手册

UC1904

UC2904

UC3904

Precision Quad Supply and Line Monitor

FEATURES

DESCRIPTION

•

Inputs for Monitoring Up to Four

Supply Voltages

The UC1904 Quad Supply Monitor will respond to under- and over-volt-

age conditions on up to four continuously monitored voltage levels. Four

independent positive voltages can be monitored or, alternatively, two of

the sense inputs are preset to monitor -5V and -12V supplies. The de-

vice also monitors Over-Current and Line Sense inputs, both with preci-

sion input thresholds.

•

Two Inputs Preset for -5V and -12V

Monitoring, or Programmable

Positive Levels

•

Precision 2.5V Reference

Four open collector outputs on the UC1904 give the following re-

sponses: 1. The OV/OC output is a latched over-voltage, or over-current

response. 2. A Power Good signal responds low with any fault detection

– on power-up a programmable delay is used to hold this output low for

a system Power On Reset signal. 3. The PWRW output responds only to

a Line Sense input, for early warning of power failures. 4. The last open

collector, the ON/OFF output, generates a delayed supply OFF control

signal in response to an OFF input command, under-voltage condition,

or line fault detection.

Separate Inputs for Over-Current and

Line Fault Sensing

•

Adjustable Under- to Over-Voltage

Fault Windows

Latched Over-Voltage and

Over-Current Output

Power Good and Power Warning

Outputs

The OV-UV fault window is adjustable with a programming input. The

thresholds are centered around the precision 2.5V reference, with a

scaled hysteresis for precise, glitch free operation. In the positive mode

of operation, the fault windows at each of the sense inputs can be inde-

pendently scaled using external resistors and the 2.5V reference output.

An Auto Restart function couples with the under-voltage and line sens-

ing circuits to allow controlled power supply start-up and shutdown.

Auto Restart Function with ON/OFF

Control, and Programmable Delay

Programmable Pwr On Reset Delay

This device will operate over a supply range of 4.75V to 18V. The device

is available in a DIP, SOIC, or PLCC outline. This device is ESD pro-

tected on all pins.

BLOCK DIAGRAM

Note: Pin Numbers refer to J, N, and DW Packages.

4/97

12 3 4 5 6

中文翻译

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与UC1904J相关器件

型号	品牌	获取价格	描述	数据表
UC1904N	TI	获取价格	UC1904N
UC1904Q	TI	获取价格	UC1904Q
UC1904QTR	ETC	获取价格	Analog IC
UC1907	TI	获取价格	Load Share Controller
UC1907DW	TI	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16, 0.150 INCH, PLASTIC, SOIC-16
UC1907DWTR	TI	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16, 0.150 INCH, PLASTIC, SOIC-16
UC1907J	TI	获取价格	LOAD SHARE CONTROLLER
UC1907J883B	TI	获取价格	LOAD SHARE CONTROLLER
UC1907L	TI	获取价格	LOAD SHARE CONTROLLER
UC1907L883B	TI	获取价格	LOAD SHARE CONTROLLER

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