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L99LDLH32 Datasheet(PDF) 124 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) 124 Page - STMicroelectronics

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Electrical characteristics
L99LDLH32
124/142
DS12879 Rev 6
8.5
Linear current sources
The L99LDLH32 features 32 channels in High Side configuration. Output current regulation
is demanded to 32 integrated linear current sources. Their relevant electrical characteristics
are reported in the below table.
Table 76. Output characteristics
Symbol
Parameter
Test conditions
Min
Typ
Max
Unit
IOUTx
Channel output current
- setting range
(absolute value)
115
mA
IOUTx_STEP
Channel output current
- step
0.055
mA
IOUTx_ACC
Channel output current
– accuracy (1)
Over the whole
current and
temperature ranges
-11
+11
%
∆IOUTx
Channel To Channel
output current –
deviation within the
same device
Over the whole
current range
+14(2)
%
IOUTx_LEAK
Channel output current
- leakage
TJ=125°C,
VOUTx= 35 V;
OUTx channel off
1µA
RONPD_OUTx
Channel output pull
down (active when
channel is off, not
active in PWM
operation)
- RDSon resistance
TJ=125°C
VOUTx= 1 V
225
Ω
VOUTx_DROP
Channel output voltage
– drop (3)
IOUTx= 15 mA
TJ=125°C
1.05
V
tGD
Gradual delay for each
output
All channels
enabled
Guaranteed by
scan
1.8
µs
tSR_ON
Slew rate - turn on time
for each channel
1µs
tSR_OFF
Slew rate - turn off time
for each channel
1µs
VSHT_CH_TH_min
VSHT_CH_DIN_TH_min
LED short circuit
threshold – minimum
voltage
0.31
V
VSHT_CH_TH_max
VSHT_CH_DIN_TH_max
LED Short circuit
threshold - maximum
voltage
5.02
V
VSHT_CH_TH_step
VSHT_CH_DIN_TH_step
LED short circuit
threshold - step voltage
0.314
V



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