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L99LD01 датащи(PDF) 52 Page - STMicroelectronics

номер детали L99LD01
подробное описание детали  High efficiency constant current LED driver for automotive applications
PDF  69 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L99LD01 датащи(HTML) 52 Page - STMicroelectronics

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Electrical characteristics
L99LD01
52/69
DocID025319 Rev 3
OV_TH1_VS
LED overvoltage threshold 1
buck-boost application
LMODE =high
VS +
3.2
VS +
3.55
VS +
3.8
V
OV_TH2_VS
LED overvoltage threshold 2
buck-boost application
LMODE =high
VS +
2.2
VS +
2.45
VS +
2.8
V
Table 26. VLED pin characteristics (continued)
Symbol
Parameter
Test condition
Min
Typ
Max
Units
Table 27. INP_OV pin characteristics (input overvoltage shut down)
Symbol
Parameter
Test condition
Min
Typ
Max
Units
VINP_OV
Operative input overvoltage range
0
5
V
-IINP_OV
Pull UP current source at input INP_OV VINP_OV =0 V
10
18
25
µA
VINP_OV_TH1 Internal voltage reference 1
3.4
3.6
3.7
V
VINP_OV_TH2 Internal voltage reference 2
2.7
2.9
3.1
V
Table 28. NTC pin characteristics
Symbol
Parameter
Test condition
Min
Typ
Max
Units
VNTC
Operative NTC voltage range
0
5
V
INTC
Pull down current source
VNTC=5 V
5
10
15
µA
VNTC_TH1
Reference for current LED thermal
regulation, temp ramp up
LED temp ramp up
1.13
1.2
1.27
V
VNTC_TH2
Reference for current LED thermal
regulation, temp ramp down
LED temp ramp down
1.38
1.45
1.52
V
Table 29. ENABLE, LHM pin characteristics
Symbol
Parameter
Test condition
Min
Typ
Max
Units
VENABLE_L
Low level ENABLE input voltage
1
V
VENABLE_H
High level ENABLE input voltage
4
V
RENABLE_PD
Enable pull down resistor
50
250
500
k
Ω
VLHM_L
Low level limp home mode input pin
1
V
VLHM_H
High level limp home mode input pin
4
V
ILHM_PU
Limp home pin pull up current
VHLM = 0
10
18
25
µA
Table 30. Power on reset
Symbol
Parameter
Test condition
Min
Typ
Max
Units
POR_TH1
Internal power on reset threshold
VC5V rising; VS =13.5 V;
C5V = 10 µF
3.2
3.7
4.2
V
POR_TH2
Internal power on reset threshold
VC5V falling; VS = 13.5 V;
C5V = 10 µF
2.7
3.4
3.7
V



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