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IC LED driver AS1163
for color mixing applicationsPWMRGB

IC LED driver - AS1163 - ams Osram - for color mixing applications / PWM / RGB
IC LED driver - AS1163 - ams Osram - for color mixing applications / PWM / RGB
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Characteristics

Construction
IC
Other characteristics
for color mixing applications, PWM, RGB, programmable, dimmable

Description

Overview
  • The ams AS1163 is a stand‑alone mixed‑signal LED driver IC optimized for automotive dynamic lighting (interior, exterior, smart‑surface effects).


Key features
  • Drives 9 LEDs organized as 3 RGB triplets or 9 independent single‑color channels.
  • Independent PWM dimming per channel with up to 16‑bit dynamic range.
  • Stand‑Alone Intelligent Driver (SAID) functionality for implementing dynamic lighting without a dedicated MCU per device.
  • Daisy‑chainable architecture for cost‑efficient multi‑device dynamic lighting chains.
  • Supports single‑layer slim PCB designs to simplify assembly and reduce BOM cost.
  • Communication: OSP (Open System Protocol), fully compatible with ams OSRAM OSIRE E3731i.
  • Additional features: I²C gateway, parallel connection, power‑rail feedback and analog readout.
  • Each AS1163 in the chain can act as an I²C gateway allowing the system MCU to read/write external I²C devices (EEPROM, temperature sensors, ambient light sensors).


Typical applications
  • Automotive dynamic lighting: interior ambient lighting, exterior decorative and signaling lighting.
  • Smart‑surface illumination where daisy‑chained drivers generate synchronized dynamic effects.


Technical specifications
  • Model: AS1163 (stand‑alone intelligent LED driver IC).
  • Number of outputs: 9 (3 × RGB triplets or 9 single‑color channels).
  • PWM dimming resolution: up to 16 bits per channel.
  • Protocol: OSP (Open System Protocol), compatible with ams OSRAM OSIRE E3731i.
  • Supported interfaces: I²C gateway, parallel connection; features: power‑rail feedback, analog readout.
  • Design advantages: daisy‑chainable; supports single‑layer slim PCB layouts.
  • Typical external I²C devices via gateway: EEPROM, temperature and ambient light sensors.

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