RC4152M

更新时间： 2024-02-24 08:30:03

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		转换器光电二极管
页数	文件大小	规格书
12页	78K
描述
Voltage-to-Frequency Converters

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技术参数
数据手册

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RC4152M 技术参数

是否Rohs认证：	不符合	生命周期：	Obsolete
Reach Compliance Code：	unknown	风险等级：	5.88
转换器类型：	VOLTAGE TO FREQUENCY CONVERTER	JESD-30 代码：	O-MBCY-W8
JESD-609代码：	e0	端子数量：	8
最高工作温度：	70 °C	最低工作温度：
封装主体材料：	METAL	封装等效代码：	CAN8,.2
封装形状：	ROUND	封装形式：	CYLINDRICAL
电源：	15 V	认证状态：	Not Qualified
子类别：	Analog Special Function Converters	最大压摆率：	6 mA
标称供电电压：	15 V	温度等级：	COMMERCIAL
端子面层：	Tin/Lead (Sn/Pb)	端子形式：	WIRE
端子位置：	BOTTOM	Base Number Matches：	1

RC4152M 数据手册

RC4152

PRODUCT SPECIFICATION

(pin 5) and ends the timing period when the voltage reaches

2/3 of the supply voltage. At the end of the timing period, the

capacitor is discharged by a transistor similar to the open

collector output transistor.

Principles of Operation

The RC4152 contains the following components: an open

loop comparator, a precision one-shot timer, a switched volt-

age reference, a switched current source, and an open collec-

tor logic output transistor. These functional blocks are

internally interconnected. Thus, by adding some external

resistors and capacitors, a designer can create a complete

voltage-to-frequency converter.

Meanwhile, during the timing period of the one-shot, the

switched current source, the switched voltage reference, and

the open collector output transistor all will be switched on.

The switched current source (pin 1) will deliver a current

proportional to both the reference and an external resistor,

RS. The switched reference (pin 2) will supply an output

voltage equal to the internal reference voltage (2.25V). The

open collector output transistor we be turned on, forcing the

logic output (pin 3) to a low state. At the end of the timing

period all of these outputs will turn off. The switched voltage

reference has produced an off-on-off voltage pulse, the

switched current source has emitted a quanta of charge, and

the open collector output has transmitted a logic pulse.

The comparator’s output controls the one-shot (monostable

timer). The one-shot in turn controls the switched voltage

reference, the switched current source and the open collector

output transistor. The functional block diagram shows the

components and their interconnection.

To detail, if the voltage at pin 7 is greater than the voltage at

pin 6, the comparator switches and triggers the one-shot.

When the one-shot is triggered, two things happen. First, the

one-shot begins its timing period. Second, the one-shot’s

output turns on the switched voltage reference, the switched

current source and the open collector output transistor.

To summarize, the purpose of the circuit is to produce a cur-

rent pulse, well-deﬁned in amplitude and duration, and to

simultaneously produce an output pulse which is compatible

with most logic families. The circuit's outputs show a pulse

waveform in response to a voltage difference between the

comparators inputs.

The one-shot creates its timing period much like the popular

555 timer does, by charging a capacitor from a resistor tied

to +VS. The one-shot senses the voltage on the capacitor

Integrator

C_B

4152

I_OUT

Switched

Current

Source

+V_S

Voltage

Reference

R_B

Open Loop

Comparator

100K

V_IN

Switched

Voltage

Reference

0 to +10V

0.01mF

R_S

Current Setting Resistor

R_S= 16.7K

Precision

One Shot

R_O

Ground

R_LOAD

One Shot

Timing

Open Collector

Logic Output

Transistor

OUT

C_O

Open Collector Output

4152-04

Figure 1. Single Supply VFC

1 2 3 456 7 8...12

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与RC4152M相关器件

型号	品牌	描述	获取价格	数据表
RC4152N	FAIRCHILD	Voltage-to-Frequency Converters	获取价格
RC4152N	RAYTHEON	Voltage to Frequency Converter, 1 Func, 0.1MHz, Bipolar, PDIP8, PLASTIC, DIP-8	获取价格
RC4152NB	RAYTHEON	Voltage to Frequency Converter, PDIP8,	获取价格
RC4153	ETC		获取价格
RC4153ADB	RAYTHEON	Voltage to Frequency Converter, PDIP14,	获取价格
RC4153ADC	RAYTHEON	Voltage to Frequency Converter, CDIP14,	获取价格

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