TC2682EUART

更新时间： 2024-11-05 13:14:27

品牌	Logo	应用领域
美国微芯 - MICROCHIP		泵
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10页	403K
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中文翻译

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数据手册

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TC2682EUART 数据手册

TC2682/TC2683/TC2684

Inverting Charge Pump Voltage Doublers

Features

General Description

• Small 8-Pin MSOP Package

• Operates from 1.8V to 5.5V

• 120 Ohms (typ) Output Resistance

• 99% Voltage Conversion Efficiency

• Only 3 External Capacitors Required

• Power-Saving Shutdown Mode

• Low Active Supply Current

- 95µA (typ) for TC2682

The TC2682/TC2683/TC2684 are CMOS charge pump

converters that provide an inverted doubled output

from a single positive supply. An on-board oscillator

provides the clock and only three external capacitors

are required for full circuit implementation. Switching

frequencies are 12kHz for the TC2682, 35kHz for the

TC2683, and 125kHz for the TC2684.

Low output source impedance (typically 120Ω),

provides output current up to 10mA. The TC2682/

TC2683/TC2684 feature a 1.8V to 5.5V operating

voltage range and high efficiency, which make them an

ideal choice for a wide variety of applications requiring

a negative doubled voltage derived from a single

positive supply (for example: generation of -7.2V from

a +3.6V lithium cell or -10V generated from a +5V logic

supply).

- 225µA (typ) for TC2683

- 700µA (typ) for TC2684

Applications

• LCD Panel Bias

• Cellular Phones PA Bias

• Pagers

The minimum external part count and small physical

size make this family of products useful for a wide

variety of negative bias power supply applications.

• PDAs, Portable Data Loggers

• Battery-Powered Devices

Functional Block Diagram

Device Selection Table

Osc.

Freq.

(kHz)

Operating

Temp.

Range

C1+

Input

Part

Number

Package

C1–

TC2682EUA 8-Pin MSOP

TC2683EUA 8-Pin MSOP

-40°C to +85°C

C2+ TC2682

TC2683

TC2684

TC2684EUA 8-Pin MSOP 125 -40°C to +85°C

C2–

= -(2 x V )

OUT

GND

Package Type

OUT

–

OUT

8-Pin MSOP

–

C1 must have a voltage rating ≥ V

must have a voltage rating ≥ 2V

C2+

C2–

OUT

C1+

TC2682

TC2683

TC2684

C2 and C

OUT

GND

 2002 Microchip Technology Inc.

DS21548B-page 1

12 3 4 5 6 7...10

中文翻译

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TC2683EUA	MICROCHIP	获取价格	Inverting Charge Pump Voltage Doublers
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