st7pmc2s6 STMicroelectronics, st7pmc2s6 Datasheet - Page 225

• Manufacturer Part Number: st7pmc2s6
• Description: 8-bit Mcu For Automotive With Nested Interrupts, Flash, 10-bit Adc, Brushless Motor Control, 5 Timers, Spi, Linsci?
• Manufacturer: STMicroelectronics

ST7MC1K2-Auto, ST7MC1K6-Auto, ST7MC2S4-Auto, ST7MC2S6-Auto
Figure 99. Step ratio bits decoding and accuracy results and BEMF sampling rate
10
11
12
13
14
15
0
1
2
3
4
5
6
7
8
9
ST[3:0]
Step ratio (decimal)
avg Zn ~ FFh ± 0.4%
avg Zn ~ 7Fh ± 0.6%
avg Zn ~ 55h ± 1.2%
Fn
Fstep = 6.N.Frpm = N.F/10 ¤ N.F = 10.Fstep
Fn+1 = 2.Fn
Fstep: electrical step frequency
3.Fn
3.Fn+1 = 6.Fn
N: pole pair number
200 Hz
avg Zn ~ FFh ± 0.4%
avg Zn ~ 7Fh ± 0.6%
avg Zn ~ 55h ± 1.2%
15 kHz
On-chip peripherals
samples
BEMF
N.Frpm
10
4
2
1
225/371
DZn/Zn
100%
50%
10%
0%