MAX8607 Maxim Integrated Products, MAX8607 Datasheet

MAX8607

Manufacturer Part Number

MAX8607

Description

1MHz PWM Boost Converter

Manufacturer

Maxim Integrated Products

Datasheet

1.MAX8607.pdf (10 pages)

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Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

MAX8607ETD+T

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IXYS

Quantity:

160

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Meier Automation Equipment Co., Limited

Part Number:

MAX8607ETD+T

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Bonase Electronics (HK) Co., Limited

Part Number:

MAX8607TD

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The MAX8607 white LED boost converter is optimized

for camera flash/strobe applications using high-current

white LEDs. The MAX8607 integrates a 1MHz PWM

boost converter, 1.5A low-dropout (LDO) current regu-

lator, and logic control circuitry for a space-saving LED

flash design. Two logic inputs control four modes of

operation: shutdown mode reduces the quiescent cur-

rent to 0.1µA (typ), movie mode supplies up to 360mA

of LED current for continuous lighting, flash mode sup-

plies up to 1.5A of LED current for short-duration light-

ing during an exposure, and disco mode supplies +5V

(at up to 1A) to external circuits while driving the LED

with a fixed 80mA current.

The internal 1MHz boost converter features an adaptive

control scheme with an internal switching MOSFET and

synchronous rectifier to improve efficiency and mini-

mize external component count. The MAX8607 is avail-

able in a 14-pin, 3mm x 3mm TDFN package (0.8mm

max height).

19-3783; Rev 1; 2/07

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.

TOP VIEW

Camera Flashes/Strobes

Cell Phones/Smartphones

PDAs and Digital Cameras

________________________________________________________________ Maxim Integrated Products

3mm x 3mm

General Description

MAX8607

TDFN

1MHz PWM Boost Converter for 1.5A

Pin Configuration

Applications

White LED Camera Flash

♦ Supports Lumileds and Other High-Power

♦ Independently Set Flash/Movie Currents

♦ Disco Mode with Fixed 5V (Up to 1A) and 80mA

♦ 84% Efficiency (P

♦ T

♦ Output Overvoltage Protection (OVP)

♦ Soft-Start Eliminates Inrush Current

♦ 1MHz PWM Operation at All Loads

♦ Small External Components

♦ 2.7V to 5.5V Input Voltage Range

♦ 0.1µA Shutdown Mode

♦ 14-Pin, 3mm x 3mm TDFN Package

+Indicates lead-free package.

*The MAX8607ETD is characterized over the -40°C to +85°C

temperature range.

2.7V TO 5.5V

10µF

MAX8607ETD+

White LEDs

LED Current

SELECT

INPUT

INPUTS

MODE-

Flash-Mode Current Up to 1.5A

Movie-Mode Current Up to 360mA

PART*

Derating Function for LED Thermal Protection

2.2µH

Typical Operating Circuit

PGND

COMP

EN1

EN2

FLSH

14 TDFN 3mm x 3mm

(T1433-1)

LED

PIN-PACKAGE

MAX8607

Ordering Information

/ P

MOV

OUTS

LGND

GND

OUT

BATT

LED

) at 1.1A

10µF

OUTPUT

Features

UP TO 1.5A FLASH

UP TO 360mA MOVIE

TOP MARK

ABA

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