HT19LG

更新时间： 2024-02-06 09:33:10

品牌	Logo	应用领域
超科 - SUPERTEX		开关电子电话
页数	文件大小	规格书
3页	77K
描述
Electronic Telephone Line Switch

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中文翻译

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技术参数
数据手册
替代型号

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HT19LG 技术参数

是否Rohs认证：	符合	生命周期：	Obsolete
包装说明：	SOP,	Reach Compliance Code：	compliant
HTS代码：	8542.39.00.01	Factory Lead Time：	13 weeks
风险等级：	5.43	JESD-30 代码：	R-PDSO-G8
JESD-609代码：	e3	长度：	4.9 mm
湿度敏感等级：	3	功能数量：	1
端子数量：	8	封装主体材料：	PLASTIC/EPOXY
封装代码：	SOP	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE	峰值回流温度（摄氏度）：	260
认证状态：	Not Qualified	座面最大高度：	1.75 mm
标称供电电压：	2.3 V	表面贴装：	YES
电信集成电路类型：	DIGITAL TIME SWITCH	端子面层：	MATTE TIN
端子形式：	GULL WING	端子节距：	1.27 mm
端子位置：	DUAL	处于峰值回流温度下的最长时间：	40
宽度：	3.9 mm	Base Number Matches：	1

HT19LG 数据手册

HT18

HT19

Electronic Telephone Line Switch

Ordering Information

Package Option

Dial Pulse Pin

SO-8

Breakdown Voltage

Switch Resistance

DP/DP

350V

18Ω

Active High

Active Low

HT18LG

HT19LG

Features

General Description

❏

350V breakdown voltage

The Supertex HT18LG and HT19LG are electronic line switch

circuits that replace the mechanical hook switch contact or a

discrete hook switch in a telephone handset or modem. They

switch the positive side of the telephone line using control inputs

thatarereferencedtothenegativesideoftheline. Intheoffstate,

they can withstand 350V on the positive input. In the on state

their series resistances are 18Ω maximum. The devices provide

current limiting determined by an external resistor. There are

three control inputs. The HKS pin turns on the hook switch when

connected to the TPG pin. This can be accomplished by using a

mechanical switch which closes when the handset is physically

off-hook. The LS pin allows a logic signal to turn on the hook

switch. The dial pulse, Pin 6, is used to turn the hook switch off

for pulse dialing. For the HT18, the dial pulse is active high (DP)

whereas for the HT19, it is active low (DP).

18Ω maximum switch resistance

Current limiting protection

Operates at 2.0V input

Applications

❏

Telephone handsets

Modems

Fax machines

Answering machines

Remote meter reading

Phone interface products

Pin Configuration

Absolute Maximum Ratings

TPG

HKS

GND

N/C

V_TPG, Input line voltage

+350V

+18V

+10V

V_TP, Output line voltage

DP/DP continuous input voltage

DP/DP *

Storage temperature

Junction temperature

Soldering temperature*

Power dissipation

–65°C to +150°C

+150°C

+300°C

0.8 Watt

top view

SO-8

* For HT18, Pin 6 is DP.

For HT19, Pin 6 is DP.

Notes: All voltages are referenced to ground.

*Distance of 1.6mm from case for 10 seconds.

Note: See Package Outline section for dimensions.

12/13/01

Supertex Inc. does not recommend the use of its products in life support applications and will not knowingly sell its products for use in such applications unless it receives an adequate "products liability

indemnification insurance agreement." Supertex does not assume responsibility for use of devices described and limits its liability to the replacement of devices determined to be defective due to

workmanship. No responsibility is assumed for possible omissions or inaccuracies. Circuitry and specifications are subject to change without notice. For the latest product specifications, refer to the

Supertex website: http://www.supertex.com. For complete liability information on all Supertex products, refer to the most current databook or to the Legal/Disclaimer page on the Supertex website.

12 3

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HT19LG 替代型号

型号	品牌	替代类型	描述	数据表
HT19LG-G	SUPERTEX	功能相似	Electronic Telephone Line Switch
HT18LG-G	SUPERTEX	功能相似	Electronic Telephone Line Switch
HT18LG	SUPERTEX	功能相似	Electronic Telephone Line Switch

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