AMIS-30622 Datasheet, PDF (9/42 Pages) AMI SEMICONDUCTOR – I2C Microstepping Motordriver

AMIS-30622
6. AC-Parameters
The AC parameters are given for Vbb and temperature in their operating ranges
Symbol Pin(s)
Parameter
Test Conditions
Power-up
Tpu
Internal oscillator
fosc
I²C Transceiver
fSCL
Power-up time
Frequency of internal oscillator
SCL clock frequency
tHD;STA
tLOW
tHIGH
tSU;STA
tSU;DAT
tr
tf
tSU;STO
Hold time (repeated) START
condition. After this period, the first
clock pulse is generated.
LOW period of the SCK clock
HIGH period of the SCK clock
SDA
SCK
Set-up time for a repeated START
condition
Data set-up time
Rise time of both SDA and SCK
signals (1)
Fall time of both SDA and SCK
signals (1)
Set-up time for STOP condition
tBUF
Bus free time between a STOP and
START condition
tSP
Pulse width of spikes which must
be suppressed by the input filter
fSCL ≤ 100kHz
fSCL ≤ 360kHz
fSCL ≤ 100kHz
fSCL ≤ 360kHz
fSCL ≤ 100kHz
fSCL ≤ 360kHz
fSCL ≤ 100kHz
fSCL ≤ 360kHz
fSCL ≤ 100kHz
fSCL ≤ 360kHz
fSCL ≤ 100kHz
fSCL ≤ 360kHz
fSCL ≤ 100kHz
fSCL ≤ 360kHz
fSCL ≤ 100kHz
fSCL ≤ 360kHz
fSCL ≤ 100kHz
fSCL ≤ 360kHz
fSCL ≤ 100kHz
fSCL ≤ 360kHz
Cb
Capacitive load for each bus line
Ci
Capacitance for each I/O pin
Switch input and hardwire address input
Tsw
Tsw_on
SWI Scan pulse period (2)
HW Scan pulse duration
Motordriver
fpwm
Tbrise
PWM frequency (2)
MOTxx Turn-on transient time
Tbfall
Charge pump
Turn-off transient time
fCP
CPN
CPP
Charge pump frequency (2)
Between 10% and 90%
Notes
(1) Cb = total capacitance of one bus line in pF
(2) Derived from the internal oscillator
Min
3.6
0
0
4.0
0.6
4.7
1.3
4.0
0.6
4.7
0.6
250
100
20+0.1Cb
20+0.1Cb
4.0
0.6
4.7
1.3
50
18
Typ
4.0
1024
1/16
20
350
250
250
Max
10
4.4
100
360
1000
300
300
300
400
10
22
Unit
ms
MHz
kHz
kHz
µs
µs
µs
µs
µs
µs
µs
µs
ns
ns
ns
ns
ns
ns
µs
µs
µs
µs
ns
pF
pF
µs
Tsw
kHz
ns
ns
kHz
Rev. 3 | Page 9 of 42 | www.onsemi.com