Rainbow-electronics MAX1524 Uživatelský manuál stáhnout pdf

General Description

The MAX1522/MAX1523/MAX1524 are simple, compact

boost controllers designed for a wide range of DC-DC

conversion topologies, including step-up, SEPIC, and

flyback applications. They are for applications where

extremely low cost and small size are top priorities.

These devices are designed specifically to provide a

simple application circuit and minimize the size and

number of external components, making them ideal for

PDAs, digital cameras, and other low-cost consumer

electronics applications.

These devices use a unique fixed on-time, minimum off-

time architecture, which provides excellent efficiency

over a wide-range of input/output voltage combinations

and load currents. The fixed on-time is pin selectable to

either 0.5µs (50% max duty cycle) or 3µs (85% max

duty cycle), permitting optimization of external compo-

nent size and ease of design for a wide range of output

voltages.

The MAX1522/MAX1523 operate from a +2.5V to +5.5V

input voltage range and are capable of generating a

wide range of outputs. The MAX1524 is intended for

bootstrapped operation, permitting startup with lower

input voltage. All devices have internal soft-start and

short-circuit protection to prevent excessive switching

current during startup and under output fault condi-

tions. The MAX1522/MAX1524 have a latched fault

mode, which shuts down the controller when a short-

circuit event occurs, whereas the MAX1523 reenters

soft-start mode during output fault conditions. The

MAX1522/MAX1523/MAX1524 are available in a space-

saving 6-pin SOT23 package.

________________________Applications

____________________________Features

♦ Simple, Flexible Application Circuit

♦ 2-Cell NiMH or Alkaline Operation (MAX1524)

♦ Low Quiescent Current (25µA typ)

♦ Output Fault Protection and Soft-Start

♦ High Efficiency Over 1000:1 I

OUT

Range

♦ Pin-Selectable Maximum Duty Factor

♦ Micropower Shutdown Mode

♦ Small 6-Pin SOT23 Package

♦ No Current-Sense Resistor

MAX1522/MAX1523/MAX1524

Simple SOT23 Boost Controllers

________________________________________________________________ Maxim Integrated Products 1

__________Typical Operating Circuit

19-1926; Rev 0; 2/01

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.

EVALUATION KIT

AVAILABLE

PART

TEMP. RANGE

PIN-

PACKAGE

TOP

MARK

MAX1522EUT-T

-40°C to +85°C

6 SOT23-6

AAOX

MAX1523EUT-T

-40°C to +85°C

6 SOT23-6

AAOY

MAX1524EUT-T

-40°C to +85°C

6 SOT23-6

AAOZ

Ordering Information

Pin Configurations

SHDNSET

16V

5 EXT

GND

MAX1522

MAX1523

MAX1524

SOT23-6

TOP VIEW

MAX1522

MAX1523

MAX1524

INPUT

OFF ON

EXT

SET

SHDN

GND

OUTPUT

50% 85%

Low-Cost, High-Current,

or High-Voltage Boost

Conversion

LCD Bias Supplies

Industrial +24V and +28V

Power Supplies

Low-Cost, Multi-Output

Flyback Converters

SEPIC Converters

Low-Cost Battery-

Powered Applications

1 2 3 4 5 6 ... 13 14

MAX1522/MAX1523/MAX1524 1

Shrnutí obsahu

Strany 1 - MAX1522/MAX1523/MAX1524

General DescriptionThe MAX1522/MAX1523/MAX1524 are simple, compactboost controllers designed for a wide range of DC-DCconversion topologies, including

Strany 2

MAX1522/MAX1523/MAX1524Simple SOT23 Boost Controllers10 ______________________________________________________________________________________Optional

Strany 3

MAX1522/MAX1523/MAX1524Simple SOT23 Boost Controllers______________________________________________________________________________________ 11Diode Se

Strany 4

MAX1522/MAX1523/MAX1524Simple SOT23 Boost Controllers12 ______________________________________________________________________________________PARAMETE

Strany 5

MAX1522/MAX1523/MAX1524Simple SOT23 Boost Controllers______________________________________________________________________________________ 13PARAMETE

Strany 6

MAX1522/MAX1523/MAX1524Simple SOT23 Boost ControllersPackage Information6LSOT.EPSMaxim cannot assume responsibility for use of any circuitry other tha

Strany 7

Simple SOT23 Boost Controllers2 _______________________________________________________________________________________ABSOLUTE MAXIMUM RATINGSELECTRI

Strany 8

MAX1522/MAX1523/MAX1524Simple SOT23 Boost Controllers_______________________________________________________________________________________ 3100500.1

Strany 9

MAX1522/MAX1523/MAX1524Simple SOT23 Boost Controllers4 _______________________________________________________________________________________Typical

Strany 10

Detailed DescriptionThe MAX1522/MAX1523/MAX1524 are simple, com-pact boost controllers designed for a wide range ofDC-DC conversion topologies includi

Strany 11

MAX1522/MAX1523/MAX1524Simple SOT23 Boost Controllers6 _______________________________________________________________________________________guarante

Strany 12

MAX1522/MAX1523/MAX1524Simple SOT23 Boost Controllers_______________________________________________________________________________________ 7under li

Strany 13

MAX1522/MAX1523/MAX1524Simple SOT23 Boost Controllers8 _______________________________________________________________________________________Inductor

Strany 14

MAX1522/MAX1523/MAX1524Simple SOT23 Boost Controllers_______________________________________________________________________________________ 9tance va

Komentáře k této Příručce

Žádné komentáře

Rainbow-electronics MAX1524 Uživatelský manuál

Procházejte online nebo si stáhněte Uživatelský manuál pro Senzory Rainbow-electronics MAX1524. Rainbow Electronics MAX1524 User Manual Uživatelská příručka

Shrnutí obsahu

Komentáře k této Příručce

Související produkty a manuály pro Senzory Rainbow-electronics MAX1524