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L99LDLH32 Fiches technique(PDF) 20 Page - STMicroelectronics

No de pièce L99LDLH32
Description  32-channel LED driver with automotive CAN FD Light interface
PDF  142 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L99LDLH32 Fiches technique(HTML) 20 Page - STMicroelectronics

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Linear current sources
L99LDLH32
20/142
DS12879 Rev 6
Figure 5. Gradual delay concept
Ch 0
t
GD = Gradual Delay
n = Channel number
t
GD
Ch 1
Ch 2
Ch n
Ch (n-1)
(n-1) * t
GD
t
GD
t
GD
Ch 0
t
GD
Ch 1
Ch 2
PWM_PERIOD
Ch n
Ch (n-1)
PWM_PERIOD
PWM_PERIOD
Conditions: Duty_Cycle = 10% & t
GD active - behavior valid for any 0% < Duty Cycle < 100%)
(n-1) * t
GD
PWM_CNT = 0
PWM_CNT = 255
PWM_CNT = 0
Ch 3
Duty Cycle = 0% & t
GD active
Ch 4
2* t
GD
PWM_CNT = 255
t
GD
t
GD
t
GD
t
GD
t
GD
t
GD
t
GD = Gradual Delay
n = Channel number
PWM_CNT = PWM counter



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