Datasheet > HV9112NG-GM905

HV9112NG-GM905

更新时间： 2024-02-25 03:50:52

品牌	Logo	应用领域
美国微芯 - MICROCHIP		开关
页数	文件大小	规格书
8页	597K
描述
SWITCHING CONTROLLER

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中文翻译

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技术参数
数据手册

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HV9112NG-GM905 技术参数

生命周期：	Obsolete	包装说明：	,
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.73
模拟集成电路 - 其他类型：	SWITCHING CONTROLLER	Base Number Matches：	1

HV9112NG-GM905 数据手册

Supertex inc.

HV9112

High-Voltage, Current-Mode

PWM Controller

General Description

Features

The Supertex HV9112 is a BiCMOS/DMOS single-output, pulse width

modulator IC intended for use in high-speed, high-efﬁciency switch

mode power supplies. It provides all the functions necessary to

implement a single-switch current mode PWM, in any topology, with a

minimum of external parts.

► 9.0 to 80V input voltage range

► Current-mode control

► High efﬁciency

► Up to 1.0MHz internal oscillator

► Internal start-up circuit

► Low internal noise

Because the HV9112 utilizes Supertex’s proprietary BiCMOS/DMOS

technology, it requires less than one tenth of the operating power of

conventional bipolar PWM ICs, and can operate at more than twice

their switching frequency. The dynamic range for regulation is also

increased, to approximately 8 times that of similar bipolar parts. It starts

directly from any DC input voltage between 9.0 and 80VDC, requiring

no external power resistor. The output stage is push-pull CMOS and

thus requires no clamping diodes for protection, even when signiﬁcant

lead length exists between the output and the external MOSFET. The

clock frequency is set with a single external resistor.

► 50% maximum duty cycle

Applications

► DC/DC converters

► Distributed power systems

► ISDN equipment

► PBX systems

► Modems

Accessory functions are included to permit fast remote shutdown

(latching or nonlatching) and under voltage shutdown.

For similar ICs intended to operate directly from up to 450VDC input,

please consult the data sheets for the HV9120 and HV9123.

For detailed circuit and application information, please refer to

application notes AN-H13 and AN-H21 to AN-H24.

Functional Block Diagram

OSC

OUT

COMP

Error

Amplifier

OSC

–

VREF

Modulator

To V_DD

–

Comparator

REF

GEN

OUTPUT

-VIN

Current Limit

Comparator

Current

Sources

BIAS

Internal

Circuits

1.2V

VDD

+VIN

SENSE

VDD

Undervoltage

Comparator

–

8.1V

8.6V

SHUTDOWN

RESET

Pre-regulator/Startup

Doc.# DSFP-HV9112

A031314

Supertex inc.

www.supertex.com

12 3 4 5 6 7 8

中文翻译

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与HV9112NG-GM905相关器件

型号	品牌	获取价格	描述	数据表
HV9112P	SUPERTEX	获取价格	High-Voltage Current-Mode PWM Controller
HV9112PJ	SUPERTEX	获取价格	High-Voltage Current-Mode PWM Controller
HV9112X	SUPERTEX	获取价格	High-Voltage Current-Mode PWM Controller
HV9113	SUPERTEX	获取价格	High-Voltage Current-Mode PWM Controller
HV9113_07	SUPERTEX	获取价格	High-Voltage Current-Mode PWM Controller
HV9113C	SUPERTEX	获取价格	IC,SMPS CONTROLLER,CURRENT-MODE,BCDMOS,DIP,14PIN,CERAMIC
HV9113NG	SUPERTEX	获取价格	High-Voltage Current-Mode PWM Controller
HV9113NG-G	SUPERTEX	获取价格	High-Voltage Current-Mode PWM Controller
HV9113P	SUPERTEX	获取价格	High-Voltage Current-Mode PWM Controller
HV9113PJ	SUPERTEX	获取价格	High-Voltage Current-Mode PWM Controller

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