Datasheet > HT7660(8SOP-A)

HT7660(8SOP-A)

更新时间： 2024-11-10 14:51:11

品牌	Logo	应用领域
台湾合泰/盛群 - HOLTEK		LTE
页数	文件大小	规格书
10页	101K
描述
Analog Circuit

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技术参数
数据手册

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HT7660(8SOP-A) 技术参数

生命周期：	Active	包装说明：	,
Reach Compliance Code：	unknown	风险等级：	5.6
Base Number Matches：	1

HT7660(8SOP-A) 数据手册

HT7660

CMOS Switched-Capacitor Voltage Converter

Features

No external diode required

Simple conversion of V_DDto -V_DD

Typically with no load voltage conversion, 99.9% effi-

ciency

Cascade connection (two devices are connected,

_OUT= -2 V_DD)

Typical power efficiency is 98%

Wide operating voltage range: 3V to 12V

8-pin DIP/SOP package

Boost pin for higher switching frequency

Easy to use

Requires only two external capacitors

Applications

RS-232 power supply

Operation amplifier supply

Data acquisition systems

Positive voltage doubler

On board negative supply for dynamic RAMS

Supply voltage splitter, V_O= ± V_DD/2

General Description

HT7660 is a monolithic CMOS switched-capacitor volt-

age converter. HT7660 is designed to complete a volt-

age conversion from positive to negative. The only

required external components are two low cost electro-

lyticcapacitors.

an RC oscillator can be lowered by adding an external

capacitor between V_DDand the OSC pin, or an external

clock can be connected to the OSC pin to replace the

original oscillator. The LV terminal may be tied to VSS to

disable the voltage regulator. By doing this, low voltage

operation can be improved.

HT7660 includes a voltage regulator, an RC oscillator

and four output power MOS switches. The frequency of

Block Diagram

VDD

CAP+

CAP

OSC

Oscillator

Voltage

Level Shifter

BOOST

VOUT

Voltage

Regulator

Logic

Network

VSS

Rev. 1.11

February 23, 2009

12 3 4 5 6 7...10

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