UM1632 datasheet(25/32 Pages) STMICROELECTRONICS

Part #	UM1632

Description	STM8L DALI slave interface

PDF	32 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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25 / 32 page

DocID024513 Rev 1

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UM1632

Application description

The hardware combination (STM8L1526-EVAL + STEVAL-ILM001V1) works as a DALI

slave device. The LD1 on the STM8L1526-EVAL kit is used as a light source. Its brightness,

fade-in/out times, etc., as defined by the DALI standard, can be controlled through DALI to

simulate normal lamp behavior.

The STEVAL-ILM001V1 provides all the functions required by the DALI standards. The

most important ones are:

•

Level translation from DALI voltage levels (-6.5 to 22.5 V) to microcontroller levels (3.3

V / 5 V logic)

•

Proper rise/fall times for the communication

•

Current consumption limit (2 mA max.)

•

Overvoltage protection for misconnection of rated mains voltage to DALI DA

connectors.

UM1632 Datasheet(PDF) 25 Page - STMicroelectronics