Toshiba TB62732FU User Guide
Summary
This high-efficiency step-up DC-DC converter functions as a specialized LED driver, designed to power white LED backlights in portable electronic devices such as PDAs and handheld terminals (supporting 2-4 serial LEDs). It features integrated temperature derating functionality and low-power standby modes. The accompanying manual provides comprehensive technical documentation for engineers, including detailed electrical characteristics, absolute maximum ratings, functional block diagrams, efficiency performance curves across various operating voltages, and application circuit examples needed for reliable system integration.
Page 1 Text Content
查询TB62732FU供应商
T B 6 2 7 3 2 F UTOSHIBA
TOSHIBA Bi CD DIGITAL INTEGRATED CIRCUIT SILICON MONOLITHIC
T B 6 2 7 3 2 F U The step up type DC-DC converter only for white LED driver lighting
FEATURE
The TB62732FU is a LED driver by the high efficiency step up type DC-DC converter that 2-4 serial white LED can be turned on. This IC builds in the Nch MOS FET transistor to switch the coil, and builds in the function which derate the LED current corresponding to the rise in temperature. And, the average LED current can be set up easily by the resistance with the outside. This IC is the most suitable as a driver of the LED liquid crysta back light of the PDA, the cellular phone and the the handy terminal.
CHARACTERISTICS
SSOP6-P-0.95B
*Maximum output voltage Vo =< 17V
*The variable setup of the average LED current value by Weight: 0.016 g (typ)
the resistance with the outside. 18 m A (typ) @ R_sens = 2.7 ohms 20 m A (typ) @ R_sens = 2.4 ohms *Supply electric power It is turned on to the 320 m W load. *Compact package SSOP6 - P - 0.95B ( SOT23-6pin ) *The LED current derating function is built in. The derating of LED current vs set temperature, on the automatic operation. *High efficiency 80% of the efficiency. @ 2-3LEDs turn on. IF=20m A (typ) ) Ron=2.0 ohms (standard) @ Vin = 3.0 - 5.5V The power MOS transistor building in of low Ron.
*Pin assignment (Top View)
GND GND
SHDN VCC
Note 1: Be careful of handling because there is a terminal which is poor at ESD in this product. Company Headquarters California Sales Office: 3 Northway Lane North 950 South Coast Drive, Suite 265 Latham, New York 12110 Costa Mesa, California 92626 Toll Free: 800.984.5337 Toll Free: 800.984.5337 Fax: 518.785.4725 Web: www.marktechopto.com | Email: [email protected] Fax: 714.850.9314
Page Summary Contents For Toshiba TB62732FU User Guide
Manual Details
| Brand | Toshiba |
|---|---|
| Pages | 15 |
| File Size | 176.21 KB |
| Published | June 02, 2026 |
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Frequently Asked Questions
What is the primary function of the TB62732FU?
It is a high-efficiency step up type DC-DC converter designed specifically as an LED driver for 2-4 series white LEDs.
How can the average LED current be adjusted?
The average LED current can be easily set by using an external resistance (R_sens).
Does this IC protect against overheating?
Yes, it has a built-in function that derates the LED current corresponding to increases in temperature.
What is the recommended input voltage range for operation?
The operating supply voltage (Vcc) should be between 3.0 V and 5.5 V.