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ACT8846 датащи(PDF) 38 Page - Active-Semi, Inc

номер детали ACT8846
подробное описание детали  Advanced PMU for Multi-core Application Processors
PDF  44 Pages
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производитель  ACTIVE-SEMI [Active-Semi, Inc]
домашняя страница  http://www.active-semi.com
Logo ACTIVE-SEMI - Active-Semi, Inc

ACT8846 датащи(HTML) 38 Page - Active-Semi, Inc

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ACT8846
Rev 7.0 06-Dec-2017
Innovative PowerTM
-
38 -
www.active-semi.com
Copyright © 2016-2017 Active-Semi, Inc.
ActivePMUTM is a trademark of Active-Semi.
I2CTM is a trademark of NXP.
The GPIO3, the GPIO4, the GPIO5, and the GPIO6
are configured as PWM LED drivers, which could
support up to 6mA current with programmable
frequency and duty cycle. Set PWM#EN[ ] bit to “1”
to enable PWM function of GPIO#.
PWM Frequence Selection
Each
LED
driver
may
be
independently
programmed to a different frequency by writing to
the GPIO’s FRE[2:0] register via the I2C serial
interface as shown in Table 6.
Table 6:
FRE#[ ] PWM Frequency Setting
PWM Duty Cycle Selection
Each
LED
driver
may
be
independently
programmed to a different duty cycle by writing to
the GPIO’s DUTY[3:0] register via the I2C serial
interface as shown in Table 7.
Table 7:
DUTY#[ ] PWM Frequency Setting
PWM LED DRIVERS
FRE#[2:0]
PWM Frequency [Hz]
000
0.25
001
0.5
010
1
011
2
100
128
101
256
DUTY#[3:0]
PWM Duty Cycle [%]
0000
6.25
0001
12.5
0010
18.75
0011
25
0100
31.25
0101
37.5
0110
43.75
0111
50
1000
56.25
1001
62.5
1010
68.75
1011
75
1100
81.25
1101
87.5
1110
93.75
1111
100



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