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L99LDLH32 Datasheet(PDF) 127 Page - STMicroelectronics

Part # L99LDLH32
Description  32-channel LED driver with automotive CAN FD Light interface
PDF  142 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L99LDLH32 Datasheet(HTML) 127 Page - STMicroelectronics

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DS12879 Rev 6
127/142
L99LDLH32
Electrical characteristics
141
8.6
Digital timings and ADC characteristics
1
1
1
100
1.013
VNTC_TH is the NTC voltage corresponding to the derating start temperature
Rpull-up=2.2 kΩ; NTC= 10 kΩ ± 1%, @ 25°C.
NTC part number: NCU18XH103F6SRB
NTC chip type temperature characteristics: B-constant = 3380K ± 0.7%
Table 78. NTC derating start configuration – Voltage vs Temperature
Bit 2
Bit 1
Bit 0
Derating Start Temp. [°C]
VNTC_TH [V]
V3V3
Rpull-up
V
NTC
NTC
Table 79. Digital timings
Symbol
Parameter
Test conditions
Min
Typ
Max
Unit
tWD
Watchdog timeout period
Guaranteed by
scan
00 (default)
45
50
55
ms
01
95
100
105
10
195
200
205
11
20
25
30
tAUTORESTART
Auto-restart time in Fail
Safe / Stand-alone mode
Guaranteed by Scan
45
50
55
ms
tFILTER
Filtering time –
Time needed for DIN
overtaking control on bus
mode (after DIN rising
edge when DIN_EN set in
bus mode)
Guaranteed by scan
32
µs
tBUS_CONTROL
Timeout for bus control
re-activation after last
falling edge on DIN
Guaranteed by Scan
10
ms
tWAKE_UP
Time for a complete wake
up (V3V3 > V3V3_POR_H)
DIN high for t > tWAKEUP
Cap on V3V3 = 1 μF
V3V3 > V3V3_POR_H
30
us
tSTDBY
Time needed for a
transition to standby
mode
(V3V3 < V3V3_POR_L)
DIN low
Cap on V3V3 = 1 μF
V3V3 < V3V3_POR_L
15
ms
tSTARTUP
Time needed for
initialization phase
(transition state)
650
µs



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