LTC3207
LTC3207
PRODUCTION600mA Universal Multi-Output LED/CAM Driver
- Part Models
- 4
- 1ku List Price
- Starting From $3.29
Viewing:
Overview
- Low Noise, Multi-Mode Charge Pump (1x, 1.5x, 2x) Provides Up to 91% Efficiency
- Slew Limited Switching Reduces Conducted and Radiated Noise (EMI)
- Up to 600mA Total Output Current
- Twelve 28mA Universal Current Sources with 64-Step Linear Brightness Control
- 425mA CAM LED Current Source with 16-Step Linear Brightness Control and 2-Second High Current Safety Timer
- Independent On/Off, Brightness Level, Blinking and Gradation Control for Each Current Source Using 2-Wire I2C Interface
- Internal Current Reference
- Two I2C Addresses are Available (LTC3207 00110110, LTC3207-1 00110100)
- Configurable ENU Pin for Asynchronous LED On/Off Control
- Automatic or Forced Mode Switching
- Internal Soft-Start Limits Inrush Current
- Short-Circuit/Thermal Protection
- 4mm × 4mm 24-Pin QFN Plastic Package
The LTC3207/LTC3207-1 are highly integrated multi-display LED drivers. The device contains a high-efficiency, low-noise charge pump to provide power to 12 universal LED current sources and one camera LED current source. The LTC3207/LTC3207-1 require only five small ceramic capacitors to form a complete LED power supply and current controller. In addition there are two I2C addresses available.
The display currents are set by an internal precision current reference. Independent dimming, On/Off, blinking and gradation control for all universal current sources is achieved via the I2C serial interface. 6-bit linear DACs are available for adjusting brightness levels for each universal LED current source. The CAM current source has a 4-bit linear DAC to adjust brightness.
The LTC3207/LTC3207-1 charge pumps optimize efficiency based on the voltage across the LED current sources. The device powers-up in 1x mode and will automatically switch to boost mode whenever any enabled LED current source begins to enter dropout. The first dropout switches the IC into 1.5x mode and a subsequent dropout switches the LTC3207/LTC3207-1 into 2x mode. The device resets to 1x mode whenever a data register is updated via the I2C port.
Applications
- Video Phones with QVGA+ Displays
Documentation
Data Sheet 1
User Guide 1
Application Note 1
Technical Articles 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 |
|---|---|---|---|
| LTC3207EUF#PBF | 24-Lead QFN (4mm x 4mm x 0.75mm w/ EP) | ||
| LTC3207EUF#TRPBF | 24-Lead QFN (4mm x 4mm x 0.75mm w/ EP) | ||
| LTC3207EUF-1#PBF | 24-Lead QFN (4mm x 4mm x 0.75mm w/ EP) | ||
| LTC3207EUF-1#TRPBF | 24-Lead QFN (4mm x 4mm 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 |
||
| LTC3207EUF#PBF | PRODUCTION | |
| LTC3207EUF#TRPBF | PRODUCTION | |
| LTC3207EUF-1#PBF | PRODUCTION | |
| LTC3207EUF-1#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
Latest Discussions
No discussions on LTC3207 yet. Have something to say?
Start a Discussion on EngineerZone®