Datasheet > HT0638ND

HT0638ND

更新时间： 2024-01-28 09:56:52

品牌	Logo	应用领域
超科 - SUPERTEX		电信电信集成电路
页数	文件大小	规格书
5页	76K
描述
Telecom Circuit, 1-Func

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中文翻译

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技术参数
数据手册

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HT0638ND 技术参数

是否无铅：	含铅	是否Rohs认证：	不符合
生命周期：	Obsolete	包装说明：	,
Reach Compliance Code：	compliant	HTS代码：	8542.39.00.01
风险等级：	5.78	JESD-30 代码：	X-XUUC-N
JESD-609代码：	e0	功能数量：	1
最高工作温度：	85 °C	最低工作温度：	-40 °C
封装主体材料：	UNSPECIFIED	封装形状：	UNSPECIFIED
封装形式：	UNCASED CHIP	峰值回流温度（摄氏度）：	NOT SPECIFIED
认证状态：	Not Qualified	表面贴装：	YES
电信集成电路类型：	TELECOM CIRCUIT	温度等级：	INDUSTRIAL
端子面层：	TIN LEAD	端子形式：	NO LEAD
端子位置：	UPPER	处于峰值回流温度下的最长时间：	NOT SPECIFIED
Base Number Matches：	1

HT0638ND 数据手册

HT0638

Electronic Line Switch

Ordering Information

Package Option

SO-8

Breakdown Voltage

Switch Resistance

15Ω

375V

HT0638LG

Features

General Description

15Ω maximum switch resistance

Current limiting protection

4 logic control inputs

The Supertex HT0638 is an integrated electronic line switches

controllable from four logic-level inputs. These devices are

intended as a replacement for mechanical hook switches and

relays in telephones, answering machines, and similar telecom-

munications equipment.They switch the positive (Tip) side of the

telephone line using control inputs that are referenced to the

negative (Ring) side of the line. In the off state, it can hold-off 375

volts. In the on state, the series resistance is 15Ω maximum.

These devices provide adjustable current limiting via an external

sense resistor. Three of the control inputs are general purpose

and one is an override input that forces the switch to an off state

regardless of the state of the other inputs. This override input is

useful for ‘flash’ and pulse dialing purposes. Internal pull-up/

down resistors allow the inputs to be driven from single-ended

sources, push-pull sources, or left unconnected.

Operates at 2V input

2µA maximum quiescent current at 100V

Applications

Telephone handsets

Fax machines

Answering machines

Auto-dial alarm systems

The HT0638 is powered from the phone line and are especially

useful in applications where external power is not available. Due

to their low quiescent current, both of these devices exceed the

on-hook resistance requirements of EIA-470-A.

Absolute Maximum Ratings

V_TPG, Input line voltage

+375V

+18V

V_TPG

V_TP, Output line voltage

HKS continuous input voltage

LS1, LS2 continuous input voltage

DP continuous input voltage

Pin Configuration

+20V

+5V

Storage temperature

–65°C to +150°C

+300°C

TPG

HKS

GND

LS2

Soldering temperature*

LS1

Notes: All voltages are referenced to ground.

*Distance of 1.6mm from case for 10 seconds.

top view

SO-8

For additional information, refer to application note

AN-H32.

Note: See Package Outline section for dimensions.

10-5

12 3 4 5

中文翻译

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HT0640C000J0G	AMPHENOL	获取价格	Barrier Strip Terminal Block
HT0640LG	SUPERTEX	获取价格	Telecom Circuit, 1-Func, PDSO8, SO-8
HT0640N4	SUPERTEX	获取价格	Telecom Circuit, 1-Func, PDIP8, PLASTIC, DIP-8

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