HT7660 Holtek, HT7660 Datasheet

HT7660

Manufacturer Part Number

HT7660

Description

Manufacturer

Holtek

Datasheets

1.HT7660.pdf (10 pages)

2.HT7660.pdf (9 pages)

3.HT7660.pdf (9 pages)

Specifications of HT7660

Case

SOP-8

Date_code

0123

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Meier Automation Equipment Co., Limited

Part Number:

HT7660

Manufacturer:

HOLTEK/合泰

Quantity:

20 000

Company:

Amily Shenzhen XNWY Technology Co., Ltd

Part Number:

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Company:

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Part Number:

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Quantity:

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Features

Applications

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-

lytic capacitors.

HT7660 includes a voltage regulator, an RC oscillator

and four output power MOS switches. The frequency of

Block Diagram

Rev. 1.10

Simple conversion of V

Cascade connection (two devices are connected,

Boost pin for higher switching frequency

Easy to use

RS-232 power supply

On board negative supply for dynamic RAMS

Supply voltage splitter, V

OUT

BOOST

Requires only two external capacitors

OSC

= 2 V

)

Oscillator

to V

CMOS Switched-Capacitor Voltage Converter

Regulator

Voltage

VSS

Level Shifter

Voltage

an RC oscillator can be lowered by adding an external

capacitor between V

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.

No external diode required

Typically with no load voltage conversion, 99.9% effi-

ciency

Typical power efficiency is 98%

Wide operating voltage range: 3V to 12V

8-pin DIP/SOP package

Operation amplifier supply

Data acquisition systems

Positive voltage doubler

and the OSC pin, or an external

Network

Logic

HT7660

January 21, 2003

VDD

CAP+

CAP

VOUT

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