HV320

更新时间： 2024-01-01 13:46:18

品牌	Logo	应用领域
超科 - SUPERTEX		断路器电子
页数	文件大小	规格书
9页	178K
描述
Accurate, Re-Settable Electronic Circuit Breaker

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技术参数
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HV320 技术参数

是否Rohs认证：	不符合	生命周期：	Obsolete
零件包装代码：	SOIC	包装说明：	SOP,
针数：	8	Reach Compliance Code：	compliant
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.91	Is Samacsys：	N
其他特性：	IT OPERATES FROM A -10V TO -90V SUPPLY	可调阈值：	YES
模拟集成电路 - 其他类型：	POWER SUPPLY SUPPORT CIRCUIT	JESD-30 代码：	R-PDSO-G8
JESD-609代码：	e0	长度：	4.9 mm
信道数量：	1	功能数量：	1
端子数量：	8	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：	SOP	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE	峰值回流温度（摄氏度）：	NOT SPECIFIED
认证状态：	Not Qualified	座面最大高度：	1.75 mm
表面贴装：	YES	温度等级：	INDUSTRIAL
端子面层：	TIN LEAD	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：	NOT SPECIFIED	宽度：	3.9 mm
Base Number Matches：	1

HV320 数据手册

HV320

Initial Release

Accurate, Re-Settable Electronic Circuit Breaker

(Negative Supply Rail)

Features

General Description

ꢀ

Differential 10V to 90V operation (+V_IN/ -V_EE)

The Supertex HV320 re-settable electronic circuit breaker is

designed to provide fast, consistent and accurate current

limiting and load isolation during fault conditions. It may be

used in a variety of applications in such markets as telecom,

power, automotive, industrial, medical and security as well

as in systems where active control is implemented in the

negative supply lead. The current trip threshold is

programmed by a sense resistor and operates from voltages

ranging from 10V to 90V differentially.

UV and OV Lock Out

Power-On-Reset (POR) for debouncing

Sense resistor programs circuit breaker

Noise filter prevents false trip

Programmable circuit breaker trip time

Latched Operation

Low Power, <0.4mA

Small SO-8 package

The HV320 can easily replace popular positive temperature

coefficient (PTC) products such

as Raychem™

Applications

PolySwitches™ or re-settable polyfuses. HV320 overcomes

numerous performance shortcomings of existing PTC’s,

including trip point inaccuracy, increased device resistance

after initial reset, slow response time, susceptibility to

temperature variations and very high trip current to

operating current.

ꢀ

-48V Central Office Switching

-24V Cellular and Fixed Wireless Systems

-24V PBX Systems

Telecom Line Cards

-48V Powered Ethernet for VoIP

Distributed Power Systems

Power Supply Input/Output Fault Isolator

Electronic Circuit Breaker

Servers and SANS – replaceable modules

Automotive and Industrial Circuit Breakers

BUS Networks (CAN BUS, etc.)

During initial application of power, the gate of the external

pass device is clamped low to suppress contact bounce

glitches. Thereafter, the UV/OV supervisors and power-on

reset work together to suppress gate turn on until the input

power bounce ends. Once ON, HV320 continues to monitor

the input voltage and the load current level. If a load fault

occurs, the electronic circuit breaker will trip and the pass

element will be turned off. To restart, the UV or OV pins

must be toggled (for example by resetting the input voltage).

Typical Application Circuit

GND

Vin

487k

Load

HV320

6.81k

Gate

Vee

Sense

9.76 k

10nF

-48V

IRFB4710

5 mOhm

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 data book or to the

Legal/Disclaimer page on the Supertex website.

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