Brief Description
The KTD2026/7 are fully programmable, constant current RGB or RGBW LED drivers with a flexible control interface. The devices are ideally powered from one-cell lithiumion/polymer, 3-cell NiCd/NiMH/Alkaline batteries, or systems with 3.3V or 5V supplies. The independent programmable constant current sinks operate without external components.

FEATUREs
• Ultra low dropout regulated current sinks
   ► 3-Channels: KTD2026
   ► 4-Channels: KTD2027
• 40mV typical at 10mA per channel
   Programmable LED setting using I2C control
• Individual channel control
   ► On/Off Interval Time Control
   ► Dimming Up/Down Time
   ► Current Level Setting
   ► RGB or RGBW LED Color Control
• 192 current levels: 24mA max, 0.125mA step
• ±5% current matching for max current
• Low supply current of 200μA typ.
• No noise, non-pulsating LED current
• Fast, smooth start-up
• VIN Range: 2.7V to 5.5V
• 0.1μA Shutdown Current
• Pb-free Package: UTDFN-8 1.5x1.5mm
• RoHS and Green Compliant
• -40°C to +85°C Temperature Range

APPLICATIONs
• RGB indicator LEDs
• Flashing LEDs
• Mobile Phones
• Handheld Devices
• Digital Cameras