NCV70501 データシートの表示（PDF） - ON Semiconductor
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NCV70501 Datasheet PDF : 22 Pages
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NCV70501
Table 6. AC PARAMETERS
The AC parameters are given for VBB and temperature in their operating ranges.
Symbol Pin(s)
Parameter
Remark/Test Conditions
Min
Internal Oscillator
fosc
Frequency of internal
7
oscillator
Motordriver
fPWM
TOCdet
MOTxx
MOTxx
PWM frequency
Open coil detection with
PWM = 100%
Derived from internal oscillator
19.9
Derived from internal oscillator
Tbrise
MOTxx
Turn−on transient time, 10%
to 90%,
IMD = 200 mA
SPI bit EMC[1,0] = 00
SPI bit EMC[1,0] = 01
SPI bit EMC[1,0] = 10
Tbfall
MOTxx
Turn−off transient time, 90%
to 10%,
IMD = 200 mA
SPI bit EMC[1,0] = 00
SPI bit EMC[1,0] = 01
SPI bit EMC[1,0] = 10
Digital Outputs
TH2L
DO Output fall−time (90% to
ERRB 10%) from VinH to VinL
Capacitive load 200pF and
pullup resistor of 1.5 kW
Hard Reset Function
thr_trig
DIR Hard reset trigger time
See hard reset function
5
thr_dr
DIR Hard reset DIR pulse width
2.5
thr_set
RHB RHB setup time
5
threrr
ERRB Hard reset error indication
tCSB_with
CSB CSB wake−up low pulse
1
width
twu
CSB
NXT/DIR Inputs
Wake−up time
See Sleep Mode
250
tNXT_HI
NXT NXT minimum, high pulse
2
width (Note 12)
tNXT_LO
NXT NXT minimum, low pulse
2
width (Note 12)
tDIR_SET NXT, DIR NXT hold time, following
500
change of DIR (Note 12)
tDIR_HOLD NXT, DIR NXT hold time, before
500
change of DIR (Note 12)
12. Characterization value, not measured in production.
Typ
Max
Unit
8
9
MHz
22.8
25.7
kHz
50
ms
130
ns
180
270
110
ns
150
230
50
ns
200
ms
Thr_trig−2.5
ms
ms
1
ms
150
ms
ms
ms
ms
ms
ms
Table 7. BEMF MEASUREMENT − 5 bits ADC
Symbol
Pins
Parameter
BEMFDIFF_R
MOTxx BEMF input range
differential
BEMFLSB
BEMFFULL_SC
MOTxx
MOTxx
BEMF equivalent LSB value
BEMF measurement full
scale
Remark/Test Condition
Min
Typ
−3.75
Max
Unit
3.75
V
125
mV
3.48
3.875
4.26
V
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