TC962MJA

更新时间： 2024-11-20 22:49:55

品牌	Logo	应用领域
美国微芯 - MICROCHIP		转换器泵
页数	文件大小	规格书
12页	436K
描述
High Current Charge Pump DC-to-DC Converter

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中文翻译

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TC962MJA 数据手册

TC962

High Current Charge Pump DC-to-DC Converter

Features

General Description

• Pin Compatible With TC7662/ICL7662/SI7661

• High Output Current 80mA

The TC962 is an advanced version of the industry

standard TC7662 high voltage DC-to-DC converter.

Using improved design techniques and CMOS

construction, the TC962 can source as much as 80mA

versus the 7662’s 20mA capability.

• No External Diodes Required

• Wide Operating Range 3V to 18V

• Low Output Impedance 28Ω Typ.

• No Low Voltage Terminal Required

• Application Zener On-Chip

As an inverter, the TC962 can put out voltages as high

as 18V and as low as 3V without the need for external

diodes. The output impedance of the device is a low

28Ω (with the proper capacitors), voltage conversion

efficiency is 99.9%, and power conversion efficiency is

97%.

• OSC Frequency Doubling Pin Option for Smaller

Output Capacitors

Applications

The low voltage terminal (pin 6) required in some

TC7662 applications has been eliminated. Grounding

this terminal will double the oscillator frequency from

12kHz to 24kHz. This will allow the use of smaller

capacitors for the same output current and ripple, in

most applications. Only two external capacitors are

required for inverter applications. In the event an

external clock is needed to drive the TC962 (such as

paralleling), driving this pin directly will cause the

internal oscillator to sync to the external clock.

• Laptop Computers

• Disk Drives

• Process Instrumentation

• µP-Based Controllers

Device Selection Table

Operating

Part

Package

Temp.

Range

Number

Pin 1, which is used as a test pin on the 7662, is a

voltage reference zener on the TC962. This zener

(6.4V at 5mA) has a dynamic impedance of 12Ω and is

intended for use where the TC962 is supplying current

to external regulator circuitry and a reference is needed

for the regulator circuit. (See Section 3.0 Applications

Information).

TC962COE 16-Pin SOIC Wide

0°C to +70°C

TC962CPA

TC962EPA

TC962IJA

TC962MJA

8-Pin Plastic DIP

8-Pin CERDIP

-40°C to +85°C

-25°C to +85°C

-55°C to +125°C

The TC962 is compatible with the LTC1044, SI7661

and ICL7662. It should be used in designs that require

greater power and/or less input to output voltage drop.

It offers superior performance over the ICL7660S.

Package Type

16-Pin SOIC Wide

Zener

Cathode

8-Pin DIP

8-Pin CERDIP

Zener

Cathode

14 C

OSC

•

GND

TC962CPA

TC962EPA

TC962IJA

TC962MJA

OSC

TC962COE

FREQ x 2

GND

FREQ x 2

–

OUT

–

10 V

OUT

 2002 Microchip Technology Inc.

DS21484B-page 1

12 3 4 5 6 7...12

中文翻译

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