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L99LD20 датащи(PDF) 43 Page - STMicroelectronics

номер детали L99LD20
подробное описание детали  High power LED driver for automotive applications
PDF  61 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L99LD20 датащи(HTML) 43 Page - STMicroelectronics

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DS11366 Rev 3
43/61
L99LD20
Electrical specifications
60
5.3
Thermal characteristics
Table 31. QFN40L 6x6 thermal resistance
Symbol
Parameter
Min
Typ
Max
Unit
Rthj-amb
(1)
1.
Device mounted on four layers 2s2p PCB (thermally enhanced, slug included).
Thermal resistance junction to ambient (JEDEC JESD 51-2)
32
°C/W
Rthj-board Thermal resistance junction to board (JEDEC JESD 51-8)
11
°C/W
Rthj-case Junction-to-case thermal resistance
7.2
°C/W
Table 32. Thermal characteristics
Symbol
Parameter
Min
Typ
Max
Unit
TJ_OP
Operating junction temperature
-40
150
°C
TW1
Junction temperature warning 1
120
130
140
°C
TW1_HYS
Temperature warning 1 hysteresis
30
°C
TW2
Junction temperature warning 2
130
140
150
°C
TW2_HYS
Temperature warning 2 hysteresis
10
°C
TTSD
Junction thermal shutdown
155
165
175
°C
TTSD_HYS
Junction thermal shutdown hysteresis
25
°C



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