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AS1163 Fiches technique(PDF) 22 Page - ams-OSRAM AG

No de pièce AS1163
Description  Standalone intelligent driver
PDF  91 Pages
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Fabricant  AMSOSRAM [ams-OSRAM AG]
Site Internet  https://ams-osram.com/
Logo AMSOSRAM - ams-OSRAM AG

AS1163 Fiches technique(HTML) 22 Page - ams-OSRAM AG

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AS1163
Functional description
Datasheet • PUBLIC • Document Feedback
DS001075 • v2-00 • 2025-Nov-21
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6.3
Device state overview
Once the VDD supply is above the UVLO threshold and after an internal pre-defined startup
time the device is ready for communication. The device does not lose functionality until VDD
drops below the typical value of 2.6V. Internal startup time is below 1 ms.
Figure 8: Device state machine
6.3.1
UNINITIALIZED state
The device will reach the UNINITIALIZED state after power up, a power cycle from any other
state or via RESET command. In this state the register content is lost and reset to defaults.
PWM values are 0, LED drivers are disabled. Address is 0. From application point of view, the
nodes in the daisy chain must be assigned an address and each node is waiting for the first
correct telegram. Nodes are accepting only a limited number of telegrams in this state:
•
INITBIDIR or INITLOOP (bi-directional or loop back mode respectively)
•
RESET
•
CLRERROR
•
P4ERRBIDIR or P4ERRLOOP (bi-directional or loop back mode respectively)
•
Register broadcast writes
Any other or incorrect telegrams are ignored.



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