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參數(shù)資料
| 型號(hào)： | AT1313 |
| 廠商： | Aimtron Technology Corp. |
| 英文描述： | High Efficiency, Constant Current White-LED Driver |
| 中文描述： | 高效率，恒定電流白光LED驅(qū)動(dòng)器 |
| 文件頁(yè)數(shù)： | 1/12頁(yè) |
| 文件大?。?/td> | 198K |
| 代理商： | AT1313 |
AT1313
High Efficiency, Constant Current
White-LED Driver
Feature
Operating Voltage:2.5V~5.5V
High Operating Frequency: 1.4MHz
High Output Voltage: Up to 18V
Shutdown Current <1
μ
A
18V 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
Block Diagram
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
10/31/2006 REV:2.0 Email:
service@aimtron.com.tw
1
Description
The AT1313 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 1.4
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 AT1313 is available in 6-pin SOT-26 packages
LX
VREF
+
-
FB
ON/OFF
Control
Logic / PWM
Dimming
Control
GND
Control Logic
EN
VREF
0.2V
N
VBG
1.23V
VIN
+
-
VBG
OVP
+
-
Overvoltage
Protection
Current Limit
1.2A
CTL
CTL
18V
Soft-Start
Aimtron reserves the right without notice to change this circuitry and specifications.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AT1313X-GRE | 制造商:AIMTRON 制造商全稱:AIMTRON 功能描述:High Efficiency, Constant Current White-LED Driver |
| AT1314 | 制造商:AIMTRON 制造商全稱:AIMTRON 功能描述:High-Efficiency Step-Down Current Regulator For LEDs |
| AT1314S-GRE | 制造商:AIMTRON 制造商全稱:AIMTRON 功能描述:High-Efficiency Step-Down Current Regulator For LEDs |
| AT13169 | 制造商:Delphi Corporation 功能描述:SPRING HOLDER |
| AT-1319-10-8-ST-ADAPT- | 制造商:TE Connectivity 功能描述:AT-1319-10-8-ST-ADAPT-AS |
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