Datasheet > HV9901NG-GM934

HV9901NG-GM934

更新时间： 2024-01-13 16:18:05

品牌	Logo	应用领域
超科 - SUPERTEX		/
页数	文件大小	规格书
7页	390K
描述
PWM Based Peripheral Driver,

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中文翻译

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技术参数
数据手册

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HV9901NG-GM934 技术参数

生命周期：	Transferred	包装说明：	,
Reach Compliance Code：	unknown	风险等级：	5.64
接口集成电路类型：	PWM BASED PERIPHERAL DRIVER	Base Number Matches：	1

HV9901NG-GM934 数据手册

Supertex inc.

HV9901

Universal Relay Driver

General Description

Features

The Supertex HV9901 is a BiCMOS/DMOS universal relay driver that

employsPWMswitchingtechniques.Itisdesignedforefﬁcientandenergy-

saving operation of a low voltage relay with supply voltages ranging from

10 to 450V DC through utilization of the relay coils’ inductance.

► 10 to 450V input voltage range

► Energy saving hold current mode

► Adjustable microcontroller supply

► Low supply current <1.0mA

► Constant current coil

The circuit is capable of operating over a wide input voltage range without

► Programmable pull-in current, pull-in time, requiring a change of any external components. For example, this will

and hold current

enable users to use 5.0V coil relays for DC voltages 10 to 450V or AC

voltages up to 240V.

► Efﬁcient PWM operation using the relay

coils’ inductance

The HV9901 has an internal high-voltage regulator to power internal

PWM circuitry. Additionally, it includes an adjustable auxiliary regulator

with a 1.0mA capability that can be used to supply low power micro

controllers.

Applications

► Industrial controls

► Relay timers

The pull-in current, pull-in time and hold current are all program-mable

using only two resistors and a capacitor. The PWM switching frequency

can be either:

► Solenoid drivers

► Home automation

- Synchronized to an external clock, or

- Synchronized to other HV9901s, where the synchronized

frequency is the highest free-running frequency.

The enable (ENI) logic input is used to turn the relay on/off. Enable

polarity may be selected via the POL input. Audible noise is prevented

using ﬁxed switching frequencies above 20kHz.

WARNING!!! Galvanic isolation is not provided. Dangerous voltages are

present when connected to the AC line. It is the responsibility of the

designer to ensure adequate safeguards are in place to protect the end

user from electrical shock.

Typical Boost Application Circuit

V_IN

VIN

HV9901

VDD

INT

REG

SYNC

VREF

H/D

V_REF

PWM

POL

VCC

AUX

REG

Enable Polarity

Enable

V_CC

ENO

ENI

Doc.# DSFP-HV9901

B090513

Supertex inc.

www.supertex.com

12 3 4 5 6 7

中文翻译

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