Datasheet > TC54VC3502EZBRT

TC54VC3502EZBRT

更新时间： 2024-11-06 20:07:15

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
页数	文件大小	规格书
3页	27K
描述
1-CHANNEL POWER SUPPLY SUPPORT CKT, PBCY3, TO-92, 3 PIN

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TC54VC3502EZBRT 技术参数

是否Rohs认证：	符合	生命周期：	Obsolete
零件包装代码：	TO-92	包装说明：	TO-92,
针数：	3	Reach Compliance Code：	compliant
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.56	可调阈值：	NO
模拟集成电路 - 其他类型：	POWER SUPPLY SUPPORT CIRCUIT	JESD-30 代码：	O-PBCY-T3
JESD-609代码：	e3	信道数量：	1
功能数量：	1	端子数量：	3
最高工作温度：	85 °C	最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	TO-92
封装形状：	ROUND	封装形式：	CYLINDRICAL
峰值回流温度（摄氏度）：	NOT SPECIFIED	认证状态：	Not Qualified
最大供电电压 (Vsup)：	10 V	最小供电电压 (Vsup)：	0.7 V
标称供电电压 (Vsup)：	2.1 V	表面贴装：	NO
技术：	CMOS	温度等级：	INDUSTRIAL
端子面层：	Matte Tin (Sn)	端子形式：	THROUGH-HOLE
端子位置：	BOTTOM	处于峰值回流温度下的最长时间：	NOT SPECIFIED
Base Number Matches：	1

TC54VC3502EZBRT 数据手册

APPLICATION NOTE 2

USING THE TELCOM TC54

VOLTAGEDETECTOR

USING THE TELCOM TC54

VOLTAGE DETECTOR

AN-2

INTRODUCTION

OPERATION

TelCom's TC54 series of voltage detectors are de-

signedtosupersedeavarietyofdiscretecomparatorcircuits

and bipolar technology voltage detectors.

The TC54VN equivalent circuit is shown in Figure 1.

The internal precision temperature-compensated reference

and comparator circuit consistently monitor V_INfor an under-

voltagecondition. Whensuchaconditionoccurs, theoutput

isforcedtotheactive(LOW)stateandremainsthereuntilV_IN

is once again within tolerance. As shown in the timing

diagram of Figure 1, the output is forced active when V_IN<

(–V_DET) (Where (–V_DET) is the threshold voltage) and returns

HIGH when V_INexceeds (–V_DET) plus 5% hysteresis (ex-

ample: if (–V_DET) = 2.0V, the output will go HIGH when V_IN>

2.1V).

These voltage detectors are especially suited for appli-

cation in battery powered systems because of their ex-

tremely low 1µA operating current. Each part is laser

programmed to the desired trip point voltage over the range

of 0.8V to 6.0V in 100mV steps. For complete design

flexibility, complementary or open-drain output versions are

available. TC54 package options include surface mount

SOT-23 and SOT-89 or through-hole TO-92 types.

TC54 BLOCK DIAGRAM AND TIMING

TC54VC only

INPUT VOLTAGE

RELEASE

VOLTAGE (+ V_DET

)

HYSTERESIS

VOLTAGE

DETECT VOLTAGE (- V_DET

)

MINIMUM OPERATING

VOLTAGE

GROUND LEVEL

OUT

–

OUTPUT VOLTAGE

GROUND LEVEL

REF

Figure 1.

TC54 AS A MICROPROCESSOR RESET

GENERATOR

Following a power outage, microprocessors require a

reset to get them back into their starting state. Commonly

used simple Schmitt trigger/capacitor circuits are inad-

equate since they do not accurately monitor the power

supply voltage tolerance. The TC54 series overcomes this

problem with precise voltage detection. Figure 2 shows a

reset circuit using a standard TC54 and external RC time

constant, replacing bipolar integrated voltage detectors

(see Table 1).

OUT

Microprocessor

Circuit

TC54VN

Figure 2. Microprocessor Reset Circuit using TC54

and External Delay

AN2-2 8/22/97

12 3

中文翻译

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与TC54VC3502EZBRT相关器件

型号	品牌	获取价格	描述	数据表
TC54VC3502EZBRTP	TELCOM	获取价格	VOLTAGE DETECTOR
TC54VC3502EZBSTP	TELCOM	获取价格	VOLTAGE DETECTOR
TC54VC3601ECB	TELCOM	获取价格	VOLTAGE DETECTOR
TC54VC3601ECB713	MICROCHIP	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, +3.6VV, CMOS, PDSO3,
TC54VC3601ECB723	MICROCHIP	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO3, SOT-23A, 3 PIN
TC54VC3601ECBRT	MICROCHIP	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO3, EIAJ, SC-59, SOT-23A, 3 PIN
TC54VC3601ECBRTP	TELCOM	获取价格	VOLTAGE DETECTOR
TC54VC3601ECBSTP	TELCOM	获取价格	VOLTAGE DETECTOR
TC54VC3601ECT713	MICROCHIP	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5, EIAJ, SC-74A, SOT-23A, 5 PIN
TC54VC3601EMB	TELCOM	获取价格	VOLTAGE DETECTOR

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