UC2544-W

更新时间： 2024-09-15 12:02:19

品牌	Logo	应用领域
德州仪器 - TI		监控
页数	文件大小	规格书
20页	1242K
描述
Power Supply Supervisory Circuit

阅读下载

中文翻译

获取价格

技术参数
数据手册

如果您发现信息不准确，欢迎纠错

UC2544-W 技术参数

是否无铅：	含铅	生命周期：	Obsolete
包装说明：	DIE,	Reach Compliance Code：	unknown
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.71	可调阈值：	NO
模拟集成电路 - 其他类型：	POWER SUPPLY SUPPORT CIRCUIT	JESD-30 代码：	R-XUUC-N
信道数量：	1	功能数量：	1
最高工作温度：	85 °C	最低工作温度：	-25 °C
封装主体材料：	UNSPECIFIED	封装代码：	DIE
封装形状：	RECTANGULAR	封装形式：	UNCASED CHIP
最大供电电压 (Vsup)：	40 V	最小供电电压 (Vsup)：	4.7 V
标称供电电压 (Vsup)：	10 V	表面贴装：	YES
温度等级：	OTHER	端子形式：	NO LEAD
端子位置：	UPPER	Base Number Matches：	1

UC2544-W 数据手册

UC1543, UC1544

UC2543, UC2544

UC3543, UC3544

www.ti.com

SLUS188A–APRIL 1997–REVISED FEBRUARY 2007

Power Supply Supervisory Circuit

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. The O.V.

circuit also includes an optional latch and external

reset capability.

FEATURES

•

Includes Over-Voltage, Under-Voltage, and

Current Sensing Circuits

•

Internal 1% Accurate Reference

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)

The UC1544/2544/3544 devices have the added

versatility of completely uncommitted inputs to the

voltage sensing comparators so that levels less than

2.5 V may be monitored by dividing down the internal

reference voltage. The current sense circuit may be

used with external compensation as a linear amplifier

or as a highgain comparator. Although nominally set

for zero input offset, a fixed threshold may be added

with an external resistor. Instead of current limiting,

this circuit may also be used as an additional voltage

monitor.

DESCRIPTION

The monolithic integrated circuits contain all the

functions necessary to monitor and control the output

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.

The reference generator circuit is internally trimmed

to eliminate the need for external potentiometers and

the entire circuit may be powered directly from either

the output being monitored or from a separate bias

voltage.

BLOCK DIAGRAM

NOTE:

For each terminal, first number refers to 1543 series, second to 1544 series.

*On 1543 series, this function is internally connected to VREF.

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...20

中文翻译

下载PDF

与UC2544-W相关器件

型号	品牌	获取价格	描述	数据表
UC2548	TI	获取价格	Primary Side PWM Controller
UC2548DW	ETC	获取价格	Current-Mode SMPS Controller
UC2548DWTR	ETC	获取价格	Current-Mode SMPS Controller
UC2548J	ETC	获取价格	Current-Mode SMPS Controller
UC2548L	ETC	获取价格	Current-Mode SMPS Controller
UC2548N	ETC	获取价格	Current-Mode SMPS Controller
UC2548Q	ETC	获取价格	Current-Mode SMPS Controller
UC2548QTR	ETC	获取价格	Current-Mode SMPS Controller
UC2572	TI	获取价格	Negative Output Flyback Pulse Width Modulator
UC2572_08	TI	获取价格	Negative Output Flyback Pulse Width Modulator

与UC2544-W相关文章

摩尔斯微电子在美国约书亚树国家公园测试 Wi-Fi HaLow
2024-09-18

6
贸泽上架Tallysman TW5386智能GNSS天线
2024-09-18

6
SL74HC10N：高性能三输入与非门解析
2024-09-03

84
AIC1781A 电池充电控制器深度解析
2024-09-03

78

产品中心

服务支持

精选活动

关于我们

帮助中心

UC2544-W

UC2544-W 技术参数

UC2544-W 数据手册

与UC2544-W相关器件

与UC2544-W相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

UC2544-W

UC2544-W 技术参数

UC2544-W 数据手册

与UC2544-W相关器件

与UC2544-W相关文章

您还可以找

您在本页遇到什么问题？