TC7662BEOA Datasheet

IC型號：
TC7662BEOA
PDF描述：
CHARGE PUMP DC-TO-DC VOLTAGE CONVERTER
文件大?。?/label>
94.80KB
PDF頁數(shù)：
11頁
芯片廠家：
MICROCHIP

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EVALUATION

KIT

AVAILABLE

TC7662B

CHARGE PUMP DC-TO-DC VOLTAGE CONVERTER

FEATURES

Wide Operating Voltage Range: 1.5V to 15V

Boost Pin (Pin 1) for Higher Switching Frequency

High Power Efficiency is 96%

Easy to Use 鈥?Requires Only 2 External Non-Critical

Passive Components

Improved Direct Replacement for Industry Stan-

dard ICL7660 and Other Second Source Devices

GENERAL DESCRIPTION

The TC7662B is a pin-compatible upgrade to the Indus-

try standard TC7660 charge pump voltage converter. It

converts a +1.5V to +15V input to a corresponding 鈥?1.5 to

鈥?15V output using only two low-cost capacitors, eliminating

inductors and their associated cost, size and EMI.

The on-board oscillator operates at a nominal fre-

quency of 10kHz. Frequency is increased to 35kHz when

pin 1 is connected to V

, allowing the use of smaller external

capacitors. Operation below 10kHz (for lower supply current

applications) is also possible by connecting an external

capacitor from OSC to ground (with pin 1 open).

The TC7662B is available in both 8-pin DIP and 8-pin

small outline (SO) packages in commercial and extended

temperature ranges.

APPLICATIONS

Simple Conversion of +5V to

鹵

5V Supplies

Voltage Multiplication V

OUT

鹵

Negative Supplies for Data Acquisition Systems

and Instrumentation

RS232 Power Supplies

Supply Splitter, V

OUT

鹵

ORDERING INFORMATION

Part No.

Package

8-Pin SOIC

8-Pin Plastic DIP

8-Pin SOIC

8-Pin Plastic DIP

Temperature

Range

0擄C to +70擄C

鈥?40擄C to +85擄C

PIN CONFIGURATION

(DIP AND SOIC)

BOOST 1

CAP + 2

8 V+

7 OSC

BOOST 1

CAP + 2

GND 3

CAP 鈥?4

8 V+

7 OSC

TC7662BCOA 6 LOW

VOLTAGE (LV)

TC7662BEOA

5 VOUT

TC7662BCOA

TC7662BCPA

TC7662BEOA

TC7662BEPA

GND 3 TC7662BCPA 6 LOW

VOLTAGE (LV)

TC7662BEPA

鈥?4

5 VOUT

CAP

TC7660EV

Evaluation Kit for

Charge Pump Family

FUNCTIONAL BLOCK DIAGRAM

V + CAP +

BOOST

OSC

OSCILLATOR

梅

VOLTAGE鈥?/div>

LEVEL

TRANSLATOR

CAP 鈥?/div>

INTERNAL

VOLTAGE

REGULATOR

LOGIC

NETWORK

VOUT

TC7662B

GND

漏 2001 Microchip Technology Inc.

DS21469A

TC7662B-8 9/11/96

標(biāo)準(zhǔn)包裝
100
類別
集成電路 (IC)
家庭
PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器
系列
-
類型
切換式電容器（充電泵），反相
輸出類型
可調(diào)式
輸出數(shù)
1
輸出電壓
-1.5 V ~ -15 V
輸入電壓
1.5 V ~ 15 V
PWM 型
-
頻率 - 開關(guān)
10kHz ~ 35kHz
電流 - 輸出
20mA
同步整流器
無
工作溫度
-40°C ~ 85°C
安裝類型
表面貼裝
封裝/外殼
8-SOIC（0.154"，3.90mm 寬）
包裝
管件
供應(yīng)商設(shè)備封裝
8-SOICN
其它名稱
158-1060158-1060-ND

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