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LED1642GWXTTR 데이터시트(PDF) 29 Page - STMicroelectronics

부품명 LED1642GWXTTR
상세설명  16 channel LED driver with error detection current gain control
PDF  42 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
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LED1642GWXTTR 데이터시트(HTML) 29 Page - STMicroelectronics

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LED1642GW
Thermal flag
42
9
Thermal flag
The device has a thermal control logic providing a flag status when the internal temperature
exceeds 150 °C (if temperature increases over 170 °C a thermal shutdown protects the
device). This status can be read running the digital key "thermal error reading", holding the
LE high for 13 CLK rising edges (see Figure 25). If thermal alert is asserted, a 16-bit string =
"1" is sent by SDO. The error data is uploaded into EDR register and this error notification is
ready to be streamed through SDO to next 16 CLK rising edges. Hence, thermal flag status
can be:
Figure 25. Thermal flag status
Device temperature
SDO
under 150 °C
“0000 0000 0000 0000”
over 150 °C
“1111 1111 1111 1111”
Thermal
Flag Status
Previous data
13 Clock pulses with LE asserted
AM13706V1



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