Datasheet > TC828A

TC828A

更新时间： 2024-11-30 08:52:47

品牌	Logo	应用领域
TELCOM		转换器开关
页数	文件大小	规格书
8页	65K
描述
Switched Capacitor Voltage Converter

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中文翻译

获取价格

数据手册

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TC828A 数据手册

TC828A

Switched Capacitor Voltage Converter

FEATURES

GENERAL DESCRIPTION

ꢀ Charge Pump in 5-Pin SOT-23A Package

ꢀ >95% Voltage Conversion Efficiency

ꢀ Voltage Inversion and/or Doubling

ꢀ Low 38µA Quiescent Current

The TC828A is a CMOS “charge-pump” voltage con-

verterinanultra-small5-PinSOT-23Apackage. Itcaninvert

and/or double an input voltage that can range from +1.8V to

+5.5V. Conversion efficiency is typically >95%, and switch-

ing frequency is 12KHz.

ꢀ Operates from +1.8V to +5.5V

ꢀ Up to 25mA Output Current

ꢀ Only Two External Capacitors Required

ꢀ Lower Power Version of TCM828

The external component requirement is only two ca-

pacitors (10µF nominal) for standard voltage inverter appli-

cations. With a few additional components a positive

doubler can also be built. All other circuitry, including

control, oscillator, power MOSFETs are integrated on-chip.

Supply current is 38µA typically.

APPLICATIONS

ꢀ LCD Panel Bias

ꢀ Cellular Phones

ꢀ Pagers

The TC828A is available in a 5-Pin SOT-23A surface

mount package.

ꢀ PDAs, Portable Dataloggers

ꢀ Battery-Powered Devices

ORDERING INFORMATION

Part No.

Package

Temp. Range

PIN CONFIGURATION

5-Pin SOT-23A

C828AECT

5-Pin SOT-23A

– 40°C to +85°C

NOTE: 5-Pin SOT-23A is equivalent to EIAJ-SC74A.

OUT

TC828ECT

–

GND

NOTE: *5-Pin SOT-23A is equivalent to EIAJ SC-74A

TYPICAL OPERATING CIRCUIT

Voltage Inverter

C⁺

V_IN

INPUT

C^–

TC828A

V^–

OUTPUT

OUT

GND

TC828A-1 5/1/00 TelCom Semiconductor reserves the right to make changes in the circuitry and specifications of its devices.

12 3 4 5 6 7 8

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