SP682EN

更新时间： 2024-09-30 22:50:11

品牌	Logo	应用领域
西伯斯 - SIPEX		光电二极管信息通信管理泵
页数	文件大小	规格书
8页	68K
描述
Micro Power Inverting Charge Pump

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SP682EN 数据手册

SP682

Corporation

Micro Power Inverting Charge Pump

■ Low Power Voltage Conversion

■ +2.4V to +5.5V Input Range

■ 99% Voltage Conversion Efficiency

■ Typical 60µA Supply Current

■ Requires Only Three External Capacitors

■ Includes Low Power Shutdown Option

■ Ideal in Portable Applications Such As

Handheld Instruments

C1-

C2+

C2-

C1+

SP682

8 Pin MSOP

GND

OUT

Cellular Phones

APPLICATIONS

Personal Digital Assistants

Laptops and Notebooks

■ Pin Compatible Upgrade to Microchip's

TC682

■ LCD Display

■ Negative bias supply for op amps

■ Serial interface protocol circuits

DESCRIPTION

The SP682 is a monolithic charge pump voltage converter that produces a doubled, negative

voltage from a single positive supply. The SP682 charge pump outputs a –10V voltage from

a +5V input. Three external charge pump capacitors are required to support the voltage

conversion and voltage doubling process. An internal oscillator generates a 12kHz clock

which cycles the internal switching that charges the storage and transfer capacitors. The

charge pump architecture is fabricated using a low power BiCMOS process technology.

The SP682 charge pump is ideal for low power applications requiring a typical +3V battery

source such as a lithium cell. Typical applications are handheld instruments, notebook and

laptop computers, cellular phones, and data acquisition or GP systems. The SP682 is

packaged in either 8-pin NSOIC, 8-pin MSOP for surface mount applications, and 8 Pin PDIP.

TYPICAL APPLICATION CIRCUIT

+2.4V to +5V

1µF

V_CC

C1+

V_OUT

C_OUT

C1–

C2+

SP682

C2–

GND

Date: 5/20/04

SP682 Micro Power Inverting Charge Pump

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与SP682EN相关器件

型号	品牌	获取价格	描述	数据表
SP682EN/TR	SIPEX	获取价格	Micro Power Inverting Charge Pump
SP682EN-L	EXAR	获取价格	Analog Circuit, BICMOS, PDSO8,
SP682EN-L/TR	SIPEX	获取价格	Switched Capacitor Converter, 20kHz Switching Freq-Max, BICMOS, PDSO8, MO-012AA, NSOIC-8
SP682EP	SIPEX	获取价格	Micro Power Inverting Charge Pump
SP682EP-L	EXAR	获取价格	Switched Capacitor Converter, 20kHz Switching Freq-Max, BICMOS, PDIP8, PLASTIC, MS-001BA,
SP682EU	SIPEX	获取价格	Micro Power Inverting Charge Pump
SP682EU/TR	SIPEX	获取价格	Micro Power Inverting Charge Pump
SP682EU-L	ROCHESTER	获取价格	SWITCHED CAPACITOR CONVERTER, 20kHz SWITCHING FREQ-MAX, PDSO8, MO-187AA, MSOP-8
SP682EU-L	SIPEX	获取价格	Switched Capacitor Converter, 20kHz Switching Freq-Max, BICMOS, PDSO8, MO-187AA, MSOP-8
SP682EU-L/TR	ROCHESTER	获取价格	SWITCHED CAPACITOR CONVERTER, 20kHz SWITCHING FREQ-MAX, PDSO8, MO-187AA, MSOP-8