AL58812

Multi-Channel Linear RGB Drivers Webinar

Description

The AL58812 is comprised of 12 programmable LED current channels each with internal 12-bit PWM for color and brightness control through I2C or SPI digital interface. AL58812 is ideal for up to 4 RGB LED modules lighting applications with 3 programmable banks (A, B, C) for software control of each color. An external resistor can set up the global output current of all 12 channels. Each channel current can digitally be configured up to 70mA under the thermal limitation of the package.

Features of the AL58812 are controlled via I2C/SPI digital interface, which is selectable by the INT_SEL pin. The AL58812 has a 30kHz, 12-bit PWM generator for each channel, as well as channel/module independent color mixing and brightness control registers to enable vivid LED effects with zero audible noise. Users can benefit from the device’s ultra-low shutdown IQ Power Saving Mode and easy software programming.

The device operates over -40°C to +85°C ambient temperature range. The AL58812 is available in W-QFN5050-40/SWP (Type A1) MSL level 1 package. 

Feature(s)

• Input Voltage 2.7V to 5.5V
• 12 Precision LED Current Sinks
  • OUT Pins Voltage max 5.5V
  • 70mA per Channel Current
  • 12-Bit PWM Register with 30kHz PWM Generator
  • PWM Phase Shifting
  • 6-Bit Global Current Dimming
  • Independent Color-Mixing Register
  • Independent Brightness Control Registers
  • Logarithmic or Linear-Scale Brightness Control
  • Three Programmable Banks (A, B, C)
  • Low-Dropout VSAT 200mV Typical at 70mA
• Hardware-Selectable I2C or SPI Digital Interface
  • Support 400kHz I2C Interface and 4MHz SPI
• Diagnosis and Protections
  • Open-Drain Fault Indication Pin and Registers
  • Individual Fault Mask Registers for Each Channel
  • Overtemperature Protection (OTP) with Pre-OTP Warning
  • LED Open/Short, Undervoltage
• Ultra-Low Quiescent Shutdown 1μA:
  • Power-Saving Mode: 15μA (max)
• Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
• Halogen and Antimony Free. “Green” Device (Note 3)
• For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/104/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative. https://www.diodes.com/quality/product-definitions/

Application(s)

• Smart home appliances
• Electric vehicle charging stations
• Infotainment displays
• IoT information indicators
• Computing hardware