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L99LDLH32 Datasheet(PDF) 126 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) 126 Page - STMicroelectronics

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Electrical characteristics
L99LDLH32
126/142
DS12879 Rev 6
Table 77. PWM characteristics
Symbol
Parameter
Test conditions
Min
Typ
Max
Unit
PWM_FREQ_MIN
PWM minimum frequency
200
Hz
PWM_FREQ_MAX
PWM maximum frequency
1400
Hz
PWM_FREQ_ACC
PWM frequency accuracy
Guaranteed by Scan
-5
5
%
PWM_PHASE_SHIFT_MIN
PWM minimum phase shift –
Responder mode
Guaranteed by Scan
0
µs
PWM_PHASE_SHIFT_MAX
PWM maximum phase shift –
Responder mode
Guaranteed by Scan
105
µs
PWM_PHASE_SHIFT_STEP
PWM phase shift step –
Responder mode
15
µs
tPWM_ON_OFF
Minimum PWM on-time and
off-time vs frequency
PWM_FREQ = 200 Hz
5
µs
PWM_FREQ = 300 Hz
3.3
µs
PWM_FREQ ≥ 400 Hz
2.5
µs
tSTARTUP_PWM_VS
Time needed for device
startup, from device power up
(presence of VS) to the
channel activation – PWM
dimming through power line
DIN_MAP_CHx = 01 (all
outputs mapped to Direct
Input)
DIN connected to Power
Supply = 12.5 V through
resistor divider
CURR_SET_CHx = FFh
(all outputs current set to
15 mA)
Power Supply Dimming
Frequency = 200 Hz
Power Supply Dimming
Duty Cycle = 50%
750
µs
Table 78. NTC derating start configuration – Voltage vs Temperature
Bit 2
Bit 1
Bit 0
Derating Start Temp. [°C]
VNTC_TH [V]
0
0
0
55
2.034
0
0
1
60
1.908
0
1
0
65
1.783
01
1
70
1.66
1
0
0
80
1.423
1
0
1
90
1.207
1
1
0
95
1.106



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