ams AS1163 Automotive 9-channel Stand-Alone Intelligent LED Driver IC

描述

Product status: Pre-Production
AS1163 is a mixed signal silicon device optimized for automotive dynamic lighting applications (interior, exterior, smart surface etc.). The basic purpose of AS1163 is to drive 9 LEDs organized in 3 channel triplets (RGB) or simply 9 single-color LEDs with an independent PWM dimming dynamic range up to 16 bits. AS1163 is often addressed with a different name: “SAID”, an acronym which stands for Stand-Alone Intelligent Driver.

A daisy chain configuration of multiple AS1163 devices will enable cost effective implementation of complex dynamic lighting effects. AS1163 supports single layer slim PCB designs.The communication protocol supported by AS1163 (OSP: Open System Protocol) is fully compatible with the ams OSRAM OSIRE E3731i. AS1163 will support additional features such as I²C gateway, parallel connection, power-rail feedback, analog readout. Each AS1163 device in the chain will be usable by the MCU to read and write an external I²C device, e.g. EEPROM, temperature sensor, Ambient Light Sensor.

详情

特点

  • Slim QFN16 (3 × 3 mm) package
  • 3 × RGB channels (9 drivers: 3 × 48mA, 6 × 24mA) per IC
  • Multiple current settings: 1.5, 3, 6, 12, 24, 48 mA
  • Output clustering options (up to 288mA)
  • I²C gateway optionally configurable
  • Supporting OSP (Open System Protocol): auto-addressing 2.4 Mbit/s 2-wire daisy chain protocol; up to 1000 nodes; CRC protected communication
  • 14-bit PWM resolution @ 1000 Hz; 15-bit PWM resolution @ 500 Hz; 16-bit PWM resolution @ equivalent dynamic range
  • Enhanced Driving Mode (Anti-Flickering Dithering Mode)
  • Star network implementation
  • Hardware and software sync
  • Integrated 10-bit ADC + MUX
  • Open/short/communication diagnosis
  • Overvoltage/overtemperature protection
  • Built-in temperature sensor
  • Multicast with up to 15 groups

优势

  • Slim/single layer PCB
  • Adjustable output current
  • Configurable output power
  • Brightness adjustment
  • Sensor integration via I²C interface
  • Reduced flickering
  • 2-wire-SPI connection with MCU
  • Group option
  • Parallel connection
  • Supporting display-like applications thanks to sync
  • Haptic support (150 or 300 Hz)
  • Compatible with OSIRE E3731i (i.e. other OSP devices) in daisy chain

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