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DRV8860PWPR Scheda tecnica(PDF) 23 Page - Texas Instruments

Il numero della parte DRV8860PWPR
Spiegazioni elettronici  DRV8860x 38-V 8-Channel Serial Interface Low-Side Driver
PDF  45 Pages
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Produttore elettronici  TI2 [Texas Instruments]
Homepage  https://www.ti.com
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DRV8860PWPR Scheda tecnica(HTML) 23 Page - Texas Instruments

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DRV8860, DRV8860A
www.ti.com
SLRS065E – SEPTEMBER 2013 – REVISED NOVEMBER 2015
8.5.1.4 Output Energizing and PWM Control
The device output is defined by two stages: Energizing Phase and PWM Phase.
During the Energizing phase, the channel is turned on with 100% duty cycle for a duration set by Control register
bits C4:C1.
In PWM chopping phase, with the PWM Duty Cycle defined by Control register bits C7:C5.
The behavior of each bit in the Control Register is described in Table 4.
Table 4. Control Register Settings
C8
C7
C6
C5
C4
C3
C2
C1
Value
DESCRIPTION
0
X
X
X
X
X
X
X
N/A
Outputs always in Energizing mode
1
X
X
X
0
0
0
0
0 ms
No Energizing, starts in PWM chopping
1
X
X
X
0
0
0
1
3 ms
1
X
X
X
0
0
1
0
5 ms
1
X
X
X
0
0
1
1
10 ms
1
X
X
X
0
1
0
0
15 ms
1
X
X
X
0
1
0
1
20 ms
1
X
X
X
0
1
1
0
30 ms
1
X
X
X
0
1
1
1
50 ms
Sets the Energizing Time (100% duty cycle) before
1
X
X
X
1
0
0
0
80 ms
switching to PWM Phase
1
X
X
X
1
0
0
1
110 ms
1
X
X
X
1
0
1
0
140 ms
1
X
X
X
1
0
1
1
170 ms
1
X
X
X
1
1
0
0
200 ms
1
X
X
X
1
1
0
1
230 ms
1
X
X
X
1
1
1
0
260 ms
1
X
X
X
1
1
1
1
300 ms
1
0
0
0
X
X
X
X
0%
Output is off after Energizing Phase
1
0
0
1
X
X
X
X
12.50%
12.5 kHz
1
0
1
0
X
X
X
X
25.00%
25 kHz
1
0
1
1
X
X
X
X
37.50%
Sets PWM chopping duty cycle. DC is the
1
1
0
0
X
X
X
X
50.00%
duty cycle that the low-side FET is on.
1
1
0
1
X
X
X
X
62.50%
50 kHz
1
1
1
0
X
X
X
X
75.00%
1
1
1
1
X
X
X
X
87.50%
Copyright © 2013–2015, Texas Instruments Incorporated
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Product Folder Links: DRV8860 DRV8860A



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