LTC3208
LTC3208
PRODUCTIONHigh Current Software Configurable Multidisplay LED Controller
- Part Models
- 2
- 1ku List Price
- Starting From $4.34
Viewing:
Overview
- 1x/1.5x/2x Charge Pump Provides Up to 95% Efficiency
- Up to 1A Total Output Current
- 17 Current Sources Available as MAIN, SUB, RGB, CAM and AUX LED Drivers
- LED ON/OFF, Brightness Level and Display Configuration Programmable Using 2-Wire I2C™ Interface
- Low Noise Constant Frequency Operation with Flying Capacitor Edge Rate Control
- Automatic Charge Pump Mode Switching
- Internal Soft-Start Limits Inrush Current During
- Startup and Mode Switching
- Open/Shorted LED Protection
- Short-Circuit/Thermal Protection
- 256 Brightness States for MAIN and SUB Displays
- 4096 Color Combinations for the RGB Display
- 5mm × 5mm 32-Lead QFN Plastic Package
The LTC3208 is a highly integrated multidisplay LED controller. The part contains a 1A high effi ciency, low noise charge pump to provide power to the MAIN, SUB, RGB, CAM and AUX LED displays. The LTC3208 requires only 4 small ceramic capacitors and one current set resistor to form a complete LED power supply and current controller.
The maximum display currents are set by a single external resistor. Current for each LED is controlled by a precision internal current source. Dimming and On/Off for all displays is achieved via the I2C serial interface. 256 brightness levels are available for the MAIN and SUB displays. 16 levels are available for the RGB and CAM displays. Four AUX current sources can be independently assigned via the I2C port to the CAM, SUB, MAIN or AUX DAC controlled displays.
The LTC3208 charge pump optimizes effi ciency based on the voltage across the LED current sources. The part powers up in 1x mode and will automatically switch to boost mode whenever any enabled LED current source begins to enter dropout. The fi rst dropout switches the part into 1.5x mode and a subsequent dropout switches the LTC3208 into 2x mode. The part is available in a small 5mm × 5mm 32-lead QFN package.
Applications
- Video/Camera Phones with QVGA + Displays
Documentation
Data Sheet 1
User Guide 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| LTC3208EUH#PBF | 32-Lead QFN (5mm x 5mm x 0.75mm w/ EP) | ||
| LTC3208EUH#TRPBF | 32-Lead QFN (5mm x 5mm x 0.75mm w/ EP) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Feb 20, 2022 - 21_0269 Addition of Alternate Assembly Site ASE Taiwan for Select LFCSP Products |
||
| LTC3208EUH#PBF | PRODUCTION | |
| LTC3208EUH#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Can't find the software or driver you need?
Request a Driver/SoftwareHardware Ecosystem
Evaluation Kits
LTC3208 Demo Board | High Current I2C LED Driver
Resources
Latest Discussions
No discussions on LTC3208 yet. Have something to say?
Start a Discussion on EngineerZone®