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L99LD21 Datasheet(PDF) 64 Page - STMicroelectronics

Part # L99LD21
Description  High power LED driver for automotive applications
PDF  73 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L99LD21 Datasheet(HTML) 64 Page - STMicroelectronics

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Electrical specifications
L99LD21
64/73
DS11130 Rev 5
6.4.6
PWM dimming
..
Figure 14. PWM clock failure and reset sequence
Table 45. PWMCLK and Fall back PWM description
Symbol
Parameter
Test conditions
Min
Typ
Max
Unit
VPWMCLK_L
PWMCLK low threshold
0.3 * V3V3
V
VPWMCLK_H
PWMCLK high threshold
0.7 * V3V3
V3V3
V
FPWMCLK
PWMCLK input frequency
range
102400
409600
Hz
FPWMCLK_FAIL
PWMCLK frequency fail
detection range
0
26500
Hz
FFALLBACK_CLK
Fall back PWM frequency
clock
190
200
210
KHz



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