Linear LED String Controller
The AAL403 is an LED controller capable of driving a string of LEDs with high efficiency. The novel feature of a feedback function intended to control an upstream power supply, together with low power dissipation, makes the AAL403 a breakthrough product which will establish standards for future “green” lighting technology.
Features
- Has an internal FET for simple, compact, low-cost implementation
- External resistor for current-set function provides ultimate flexibility
- Constant current LED operation for maximum LED brightness, maximum life and reliability
- Feedback function to optimize efficiency
- PWM brightness control
- Built-in oscillator for blinking
- Thermally enhanced 8-pin SOIC package allows for higher power in a small footprint
- Over-Temperature Shutdown
- Over Current Protection (typically 150mA and 400mA for 8-Pin SOIC versions, 1A for 5-Lead TO-220 packaged versions). For higher thresholds, please contact AAI.
- 100mV inernal reference for current feedback
Applications
- AC/DC LED Driver Applications
- DC/DC LED Driver Applications
- RGB backlighting
- Backlighting of LCD and PDP panels
- LED signs
- LED decoration
- Replacements for incandescent and fluorescent bulbs and fixtures
- Road signs, traffic lights
- Medical/Technical Illumination
Ordering Information Ordering PN(1)
| Subgroup | Description | Temp. Range
| Package | Packing Type
| Packing Qty
| AAL403A A-S8B-G-LF
| Controller | Linear LED String Controller, 150mA output current limit
| Automotive | 8-Pin SOIC, Thermal Pad
| Tube | 98 | AAL403A A-S8B-G-LF-TR
| Controller | Linear LED String Controller, 150mA output current limit | Automotive | 8-Pin SOIC, Thermal Pad | 13" T&R(2)
| 2500 | AAL403B A-S8B-G-LF
| Controller | Linear LED String Controller, 400mA output current limit | Automotive | 8-Pin SOIC, Thermal Pad | Tube | 98 | AAL403B A-S8B-G-LF-TR
| Controller | Linear LED String Controller, 400mA output current limit | Automotive | 8-Pin SOIC, Thermal Pad | 13" T&R(2) | 2500 | AAL403C A-T2E-G-LF
| Controller | Linear LED String Controller, 1A output current limit | Automotive | TO-220, 5-Lead
| Tube | TBD |
(1) Only RoHS/Lead-Free Packaging is normally offered.
(2) T&R - Tape and Reel
Download the data sheet
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Download the application note
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