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LED1642GWPTR bảng dữ liệu(PDF) 26 Page - STMicroelectronics

tên linh kiện LED1642GWPTR
Giải thích chi tiết về linh kiện  16 channel LED driver with error detection current gain control
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LED1642GWPTR bảng dữ liệu(HTML) 26 Page - STMicroelectronics

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Configuration register
LED1642GW
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DocID024395 Rev 6
Figure 21. SDO delay
8.7
Gradual output delay (CFG-14)
The gradual output delay consists of turning on gradually the current generators avoiding to
turn on all channels at the same time.
When PWM counter enables the device channels, the outputs can be turned on
simultaneously or with a progressive delay. Thanks to configuration register CFG -14 bit, the
user can decide to put a delay among outputs (10 ns from each channel to the next one,
around 150 ns between first and last channel). The typical output timing is shown in
Figure 22. This feature prevents the inrush current and reduces the bypass capacitor value.
AM13702V1
(a)
(b)
(a) Data shifted out of the SDO with the device propagation delay
(b) Data shifted out of the SDO by the falling edge of the CLK



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