aat3143 Datasheet - Analogictech
The AAT3143 is a high-frequency, high-brightness, current-regulated charge pump designed for driving high-current LEDs.
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📝 Component Overview
The AAT3143 is a high-frequency, high-brightness, current-regulated charge pump designed for driving high-current LEDs. It operates from a single-cell battery and can drive up to four LEDs in series, making it suitable for a variety of applications including camera flash, LCD backlighting, and other high-brightness LED applications.
Key Features and Benefits
- High-frequency charge pump for high-brightness LED driving
- Operates from a single-cell battery
- Can drive up to four LEDs in series
- High efficiency for extended battery life
- Small footprint for compact designs
- Adjustable current limit for flexible application design
Typical Applications
- Camera flash
- LCD backlighting
- High-brightness LED lighting
- Portable electronics
- Automotive lighting
- Industrial lighting
📊 Complete Technical Specifications
Absolute Maximum Ratings
| Parameter | Value |
|---|---|
| Input Voltage | 5.5V |
| Operating Temperature | -40°C to 85°C |
| Storage Temperature | -40°C to 150°C |
Electrical Characteristics
| Parameter | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Output Voltage | Vin = 3.5V, Iout = 50mA | 4.5V | 5V | 5.5V | V |
| Efficiency | Vin = 3.5V, Iout = 50mA | 80% | 85% | 90% | % |
Package Information
- TSOPJW-12: 12-pin TSOPJW package
Pin Configuration
- Pin 1: VIN - Input voltage pin
- Pin 2: GND - Ground pin
🔧 Application Guidelines
Design Considerations
When designing with the AAT3143, consider the input voltage range, output current requirements, and efficiency needs. Proper selection of external components such as capacitors and resistors is crucial for optimal performance.
Installation Guidelines
The AAT3143 should be mounted on a PCB with adequate thermal management to ensure reliable operation. Follow standard soldering practices for the TSOPJW-12 package.
Operational Notes
The device includes overtemperature protection and current limiting to prevent damage. However, proper design and layout are necessary to avoid overheating and ensure the device operates within its specified limits.