Rainbow-electronics MAX1683 Uživatelský manuál stáhnout pdf

For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

General Description

The ultra-small MAX1682/MAX1683 monolithic, CMOS

charge-pump voltage doublers accept input voltages

ranging from +2.0V to +5.5V. Their high voltage-con-

version efficiency (over 98%) and low operating current

(110µA for MAX1682) make these devices ideal for

both battery-powered and board-level voltage-doubler

applications.

Oscillator control circuitry and four power MOSFET

switches are included on-chip. The MAX1682 operates

at 12kHz, and the MAX1683 operates at 35kHz. A typi-

cal application includes generating a 6V supply to

power an LCD display in a hand-held PDA. Both parts

are available in a 5-pin SOT23 package and can deliver

30mA with a typical voltage drop of 600mV.

________________________Applications

Small LCD Panels

Cell Phones

Handy-Terminals

PDAs

____________________________Features

♦ 5-Pin SOT23 Package

♦ +2.0V to +5.5V Input Voltage Range

♦ 98% Voltage-Conversion Efficiency

♦ 110µA Quiescent Current (MAX1682)

♦ Requires Only Two Capacitors

♦ Up to 45mA Output Current

MAX1682/MAX1683

Switched-Capacitor Voltage Doublers

________________________________________________________________ Maxim Integrated Products 1

OUT

INC1-

15C1+GND

MAX1682

MAX1683

SOT23-5

TOP VIEW

Pin Configuration

VOLTAGE DOUBLER

C1+

C1-

OUT

GND

INPUT

SUPPLY

VOLTAGE

OUTPUT

VOLTAGE

2 x V

MAX1682

MAX1683

Typical Operating Circuit

19-1305; Rev 2; 9/00

PART

MAX1682EUK-T

-40°C to +85°C

TEMP.

RANGE

PIN-

PACKAGE

5 SOT23-5

Ordering Information

Note: These parts are available in tape-and-reel only. Minimum

order quantity is 2500 pieces.

MAX1683EUK-T

-40°C to +85°C 5 SOT23-5

SOT

TOP MARK

ACCL

ACCM

1 2 3 4 5 6 7 8

MAX1682/MAX1683 1

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Strany 1 - MAX1682/MAX1683

For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,or visit Maxim’s website at www.maxim-ic.com.General Des

Strany 2

MAX1682/MAX1683Switched-Capacitor Voltage Doublers2 _______________________________________________________________________________________ABSOLUTE MA

Strany 3

MAX1682/MAX1683Switched-Capacitor Voltage Doublers_______________________________________________________________________________________ 310302060504

Strany 4

MAX1682/MAX1683Switched-Capacitor Voltage Doublers4 _______________________________________________________________________________________Typical Ope

Strany 5

_______________Detailed DescriptionThe MAX1682/MAX1683 capacitive charge pumpsdouble the voltage applied to their input. Figure 1shows a simplified fu

Strany 6

MAX1682/MAX1683Conversion losses occur during the charge transferbetween C1 and C2 when there is a voltage differencebetween them. The power loss is:w

Strany 7

Cascading DevicesDevices can be cascaded to produce an even largervoltage (Figure 3). The unloaded output voltage is nom-inally (n + 1) x VIN, where n

Strany 8

MAX1682/MAX1683Switched-Capacitor Voltage DoublersMaxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied i

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Rainbow-electronics MAX1683 Uživatelský manuál

Procházejte online nebo si stáhněte Uživatelský manuál pro Senzory Rainbow-electronics MAX1683. Rainbow Electronics MAX1683 User Manual Uživatelská příručka

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