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參數(shù)資料
| 型號： | AT1312 |
| 廠商： | Aimtron Technology Corp. |
| 英文描述： | High Efficiency, Constant Current White-LEDs Driver |
| 中文描述： | 高效率，恒定電流白光LED的驅(qū)動器 |
| 文件頁數(shù)： | 1/16頁 |
| 文件大?。?/td> | 413K |
| 代理商： | AT1312 |
AT1312A/B/C
Preliminary Product Information
High Efficiency, Constant Current
White-LEDs Driver
7F, No.9,PARK AVENUE. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878 Fax: 886-3-563-0879 WWW:
http://www.aimtron.com.tw
2/23/2006 REV:1.1 Email:
service@aimtron.com.tw
1
Feature
Operating Voltage:2.5V to 6.0V.
High Operating Frequency: 1MHz
High Output Voltage: Up to 16V/23V/28V
Shutdown Current <1
μ
A
16V/23V/28V Output Over-Voltage Protection
Digital Dimming Control.
Built-in Cycle-by Cycle Current-Limiting.
Built-in Soft-Start Function.
0.2V Low Reference Voltage
Tiny SOT-26 Package
Application
LED Module
Compact Back Light Module
Constant Current Source
Description
The AT1312A/B/C step-up converter drives white
LEDs with a constant current to provide backlight in
cell phones, PDAs, and other hand-held devices. It
features allowing series connection of the white
LEDs so that the LED currents are identical for
uniform brightness. An enable input can be pulsed
repeatedly to adjust LED’s brightness. The fast 1.0
MHz current-mode PWM control allows for smaller
capacitor and inductor. Fault condition protection
uses cycle-by-cycle current limiting to sense
maximum inductor current, thermal protection and
over-voltage protection. Also included soft-start
eliminates inrush current during start-up. The 0.2V
low reference voltage minimized the power loss
across the current-setting resistor.
The AT1312A/B/C is available in 6-pin SOT-26
packages
.
Block Diagram
Aimtron reserves the right without notice to change this circuitry and specifications.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AT1312A | High Efficiency, Constant Current White-LEDs Driver |
| AT1312AX | High Efficiency, Constant Current White-LEDs Driver |
| AT1312AX-GRE | High Efficiency, Constant Current White-LEDs Driver |
| AT1312B | High Efficiency, Constant Current White-LEDs Driver |
| AT1312BX | High Efficiency, Constant Current White-LEDs Driver |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AT1312A | 制造商:AIMTRON 制造商全稱:AIMTRON 功能描述:High Efficiency, Constant Current White-LEDs Driver |
| AT1312AX | 制造商:AIMTRON 制造商全稱:AIMTRON 功能描述:High Efficiency, Constant Current White-LEDs Driver |
| AT1312AX-GRE | 制造商:AIMTRON 制造商全稱:AIMTRON 功能描述:High Efficiency, Constant Current White-LEDs Driver |
| AT1312B | 制造商:AIMTRON 制造商全稱:AIMTRON 功能描述:High Efficiency, Constant Current White-LEDs Driver |
| AT1312BX | 制造商:AIMTRON 制造商全稱:AIMTRON 功能描述:High Efficiency, Constant Current White-LEDs Driver |
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