MAX8596X Maxim Integrated Products, MAX8596X Datasheet

MAX8596X

Manufacturer Part Number

MAX8596X

Description

High-Efficiency 36V Step-Up Converters

Manufacturer

Maxim Integrated Products

Datasheet

1.MAX8596X.pdf (8 pages)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

MAX8596XETA+T

Manufacturer:

MAXIM

Quantity:

1 092

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The MAX8595X/MAX8596X drive up to nine white LEDs

with constant current and high efficiency to provide

LCD backlighting in cell phones, PDAs, and other

handheld devices. The series connection allows the

LED currents to be identical for uniform brightness and

minimizes the number of traces to the LEDs. The

MAX8595X regulates constant LED current over the

entire temperature range. The MAX8596X features an

ambient-temperature derating function to avoid over-

driving the white LEDs during high ambient tempera-

tures, enabling higher drive current below +42°C.

A single Dual Mode™ input provides a simple means of

brightness adjustment and on/off control. Fast 1MHz

current-mode PWM operation allows for small input and

output capacitors and a small inductor while minimizing

ripple on the input supply/battery. Soft-start eliminates

inrush current during startup.

The MAX8595X/MAX8596X are available in a space-

saving, 8-pin, 3mm x 3mm TDFN package.

19-3485; Rev 0; 11/04

Dual Mode is a trademark of Maxim Integrated Products, Inc.

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

200Hz TO 200kHz

PWM DIMMING

Cell Phones and Smart Phones

PDAs, Palmtops, and Wireless Handhelds

e-Books and Subnotebooks

White LED Display Backlighting

2.6V TO 5.5V

2.2µF

ANALOG OR

INPUT

with T

Typical Operating Circuit

________________________________________________________________ Maxim Integrated Products

CTRL

COMP

MAX8595X

MAX8596X

General Description

High-Efficiency, 36V Step-Up Converters

GND

PGND

Derating Option for 2 to 9 White LEDs

OUT

Applications

0.1µF

2 TO 9 LEDs

UP TO 38V

OUTPUT

♦ Up to Nine LEDs at 25mA

♦ Temperature Derating Function to Allow Fewer

♦ 86% Efficiency (P

♦ 1.7% Current-Regulation Accuracy

♦ Output Overvoltage Protection

♦ Flexible Dimming Control

♦ 1MHz PWM Switching Frequency

♦ 0.1µF Output Capacitor

♦ 12mV

♦ Soft-Start Eliminates Inrush Current

♦ 2.6V to 5.5V Input Range

♦ 0.3µA Shutdown Current

♦ Pin Compatible with the MAX1561 and MAX1599

♦ TDFN 3mm x 3mm x 0.8mm Package with

*Future product—contact factory for availability.

MAX8595XETA -40°C to +85°C 8 TDFN 3mm x 3mm T833-1

MAX8596XETA* -40°C to +85°C 8 TDFN 3mm x 3mm T833-1

LEDs for Same Light (MAX8596X)

Exposed Paddle

Analog

Direct-PWM Internal Filter

PART

TOP VIEW

P-P

Low Input Ripple

TEMP RANGE PIN-PACKAGE

3mm x 3mm x 0.8mm

LEDs

Ordering Information

MAX8595X

MAX8596X

TDFN

/ P

Pin Configuration

)

www.DataSheet4U.com

Features

CODE

PKG

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