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L99LDLH32 Datasheet(PDF) 125 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) 125 Page - STMicroelectronics

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DS12879 Rev 6
125/142
L99LDLH32
Electrical characteristics
141
VOUT_SHT_GND_TH
Output Channel Short
To Ground - voltage
threshold
850
mV
VPG_TH_VPRE_REG_min
Minimum VPRE_REG
power good threshold -
for channel diagnostic
detection enabling
4(4)
V
VPG_TH_VPRE_REG_max
Maximum VPRE_REG
power good threshold -
for channel diagnostic
detection enabling
35
V
VPG_TH_VPRE_REG_step
VPRE_REG power good
threshold step
157
mV
VOL_TH
Open Load – voltage
threshold
Guaranteed by
ADC (VOUTx
reading) and Scan
tes
470
mV
VNTC_TH
NTC threshold voltage
– derating start
See
Table 78
VNTC_SHT
NTC threshold voltage -
short detection
185
245
315
mV
VREF_PRE_REG
External Pre-Regulator
Reference Voltage
VS = 13.5 V
VOUTmax = 12.5 V
VREF_PRE_REG =
k*(VOUTmax+1.4)
k = 0.05 (2/40)
560
695
800
mV
N_Fails
Number of
detected
failures (also
non-
consecutive) –
counter cycles
Short
Circuit
Guaranteed by
Scan
14
Open
Load
8
N_Fails_reset
Number of NOT
detected failures
(consecutive) - counter
reset
Guaranteed by
Scan
3
NFTP
Number of FTP writing
cycles.
(No integrated counter
to take note about the
FTP writing cycles)
Guaranteed by
Scan
1000
1. Upon the usage of the suggested resistance on R_REF_DAC pin.
2. New parameter, Max spread Channel to Channel: (CurentMax – CurrentMin) / CurrentMax.
3. Minimum voltage drop from device VPRE_REG to device OUTx (to guarantee programmed current regulation).
4. Any VPRE_REG value from 00h to 1Ah codes is clamped to 4 V.
Table 76. Output characteristics (continued)
Symbol
Parameter
Test conditions
Min
Typ
Max
Unit



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