Kinetic Technologies’ KTD2052B is a 12-channel fully programmable current regulator capable of driving up to four RGB LEDs in AI speakers, IoT, gaming controllers or VR headsets.
Using multiplexing techniques, the number of PCB traces can be reduced by a factor of 3, significantly reducing the solution size over competing solutions. To help simplify software design and to reduce the burden on system resources, a flexible pattern generator allows set-and-forget autonomous useful patterns.
In systems with long boot times, or long periods of inactivity, the RGB LEDs will ‘AutoBreathe’ blue light, showing the user the system is alive. Coming in a tiny 8-pin UDFN package, the KTD2052B is 2x smaller than competing products.
Programmed by a 1MHz, I2C serial interface, the KTD2052B has an integrated pattern/animation engine that controls 12 independent current sinks with, in NORMAL-mode, up to 24mA/LED in 125µA steps and in NIGHT-mode, up to 1.5mA/LED in 8µA steps. A 3-bit programmable fade-rate with ultra-smooth 8µA steps is also included.
Optimized for the lowest power consumption, the KTD2052B also includes Kinetic’s patented BrightExtend™ and CoolExtend™ technologies preserving color balance and the ability to maintain light output at high operating temperatures. In case of LED failure (Shorts, Open, Dropout) additional protection and monitoring functions are included.
The KTD2052B is available with an alternative I2C address option to double the number of RGBs in a system and is available without AutoBreathe. All options are shipping now.
Product features include:
- 2.5V to 5.5V Operating Supply Voltage Range
- Drives up to 12 LEDs (4 RGBs)
- Multiplexed LED Current Driver Outputs
- Only 4 PCB Traces to the LEDs
- 20.8kHz MUX Frequency Prevents Audio Noise
- 14 Million Colors
- LED Current: 125μA to 24mA in 125μA Steps
- Night-Mode: 8μA to 1.5mA in 8μA Steps
- 5% Max. Current Accuracy & Matching
- 12 Independent Exponential Fade-Engines
- Ultra-Smooth 3072-Step (8μA) Fade Resolution
- 3-bit Programmable Fade-Rate
- Flexible Pattern Generator with Watchdog Counter
- AutoBreathe Mode (KTD2052B/D)
- Patented1 BrightExtend Technology
- Maintains Color-Accuracy and PSRR for Battery-Powered Applications with Low Vin
- Proprietary CoolExtend Technology
- 2-bit Programmable Maximum Die-Temp
- 0.6μA Automatic Shutdown (Standby) Current
- 1MHz I2C Serial Interface with alternative I2C Addresses
- Pb free, RoHS and Green Compliant 8-pin UDFN 2x2mm (0.5mm pitch) package
- -40°C to +85°C Operating Temperature Range
