tb62736fugel Marktech Optoelectronics, tb62736fugel Datasheet

tb62736fugel

Manufacturer Part Number

tb62736fugel

Description

Step-up Type Dc-dc Converter For White Leds

Manufacturer

Marktech Optoelectronics

Datasheet

1.TB62736FUGEL.pdf (13 pages)

Current page: 1 of 13
Download datasheet (393Kb)

Company Headquarters

3 Northway Lane North

Latham, New York 12110

Toll Free: 800.984.5337

Fax: 518.785.4725

Step-up Type DC-DC Converter for White LEDs

The TB62736FUG is a high efficiency step-up type DC/DC

converter that is designed especially for use as a constant current

driver of white LEDs.

It is possible to drive 2 - 6 white LEDs connected in series using a

lithium-ion battery. (Typ. 4 White LEDs)

This IC incorporates an N-ch-MOS transistor required for

switching of an external inductor.

The forward current of the LEDs can be controlled by an external

resistor. An analog voltage input and a pulse input system (PWM)

can be used as a brightness control function.

The switching frequency is fixed at around 1.1 MHz.

This IC is best suited for use as a driver of white LED back

lighting in color LCDs in PDAs, cellular phones and handy

terminal devices.

Features

•

Pin Assignment (top view)

Brightness control function

Maximum output voltage

LED current values controlled by external resistance

Output power

Package

High efficiency

Thermal Shutdown Function incorporated : 150 degree (typ.)

Note 2: The control pin must be set to a certain logic level, as unstable output could result if the pin is left open..

Note 3: Regarding soldering, the following conditions were confirmed

Note 1:

assembley

(1) Use of Sn-63Pd solder bath

(2) Use of Sn-3.0Ag-0.5Cu solder bath

solder bath temperature = 230°C, dipping time = 5 seconds, number of times = once, use of R-type flux

solder bath temperature = 245°C, dipping time = 5 seconds, number of times = once, use of R-type flux

The IC may break if mounted 180 degrees in reverse. Ensure the device is correctly orientated before

TOSHIBA BiCD Digital Integrated Circuit Silicon Monolithic

Web: www.marktechopto.com | Email: info@marktechopto.com

TB62736FUG

SHDN

(NC)

VIN

: LED forward current 25~100%

: over 24V

: 20mA (typ.) @ RSENS=16Ω

: 400 mW

: SSOP6-P-0.95 (SOT23-6)

: maximum 87% (when used with components as recommended herein)

GND

Weight: 0.016 g (typ.)

950 South Coast Drive, Suite 265

TB62736FUG

Costa Mesa, California 92626

California Sales Office:

Toll Free: 800.984.5337

Fax: 714.850.9314

Related parts for tb62736fugel

tb62736fugel Summary of contents

Page 1

TOSHIBA BiCD Digital Integrated Circuit Silicon Monolithic Step-up Type DC-DC Converter for White LEDs The TB62736FUG is a high efficiency step-up type DC/DC converter that is designed especially for use as a constant current driver of white LEDs ...

Page 2

Block Diagram 3 VIN Reference Mono Multi Level Detect 1 SHDN Pin Functions No. Symbol Input pin for IC ON/OFF control and variable LED 0.5V : Shutdown Mode (IC shutdown) 1 SHDN 1. ...

Page 3

Absolute Maximum Ratings Characteristics Power supply voltage Input voltage Switching pin voltage Switching pin current Power Dissipation Thermal resistance Operating temperature range Storage temperature Maximum junction temperature Note: Power dissipation is reduced by 3.8mW/°C from the maximum rating for every ...

Page 4

Application Circuit Example VIN 3 VIN Reference Mono Multi 2.2µF Level Detect 1.0-2.5V Analog 1 PWM SHDN Protection at the time of LED opening The zener diode in the application circuit example is necessary for the provision of over-voltage protection ...

Page 5

Output-side Capacitor Setting It is recommended that the value equal to, or greater than 1.0 (µF). External Inductor Size Setting For each number of LEDs, the selected inductance should be greater than the value indicated in the ...

Page 6

I/O Equivalent Pin Circuits 1. SHDN pin VIN 50k SHDN pin 20k 2. NC pin NC 2 The NC pin is not connected to any internal circuit pin VIN 6 FB 20k ...

Page 7

Application Circuit Example and Measurement Data (Reference data S- 2.8~5 SHDN FB GND Input Voltage - Efficiency/Output Current 2LED Drive, L=4.7µ 2.8 3.1 3.4 ...

Page 8

Application Circuit Example and Measurement Data (Reference data S- 2.8~5 SHDN FB GND Input Voltage - Efficiency/Output Current 2LED Drive, L=4.7µ 2.8 3.1 3.4 ...

Page 9

Application Circuit Example and Measurement Data (Reference data S- 2.8~5 SHDN FB GND Input Voltage - Efficiency/Output Current 2LED Drive, L=4.7µ 2.8 3.1 3.4 ...

Page 10

Application Circuit Example and Measurement Data (Reference data 2.8~5 SHDN FB GND Input Voltage - Efficiency/Output Current 2LED Drive, L=4.7µ Efficiency 15 IOUT 10 2.8 3.1 ...

Page 11

Application Circuit Example and Measurement Data (Reference data 2.8~5 SHDN GND 2.8 3 2.8 3.1 <Measurement Data> Efficiency in ...

Page 12

Package Dimensions Weight: 0.016 g (typ.) 12 TB62736FUG 2004-10-29 ...

Page 13

RESTRICTIONS ON PRODUCT USE • The information contained herein is subject to change without notice. • The information contained herein is presented only as a guide for the applications of our products. No responsibility is assumed by TOSHIBA for any ...

Related keywords

tb62736fugel datasheet
tb62736fugel data sheet
tb62736fugel pdf datasheet
tb62736fugel component
tb62736fugel part
tb62736fugel distributor
tb62736fugel RoHS
tb62736fugel datasheet download