AMIS-30622 I2C Microstepping Motordriver
Data Sheet
5.0 DC Parameters
The DC parameters are given for Vbb and temperature in their operating ranges.
Convention: currents flowing in the circuit are defined as positive.
Symbol
Pin(s)
Parameter
Test Conditions
Min
Typ
Max
Unit
Motordriver
Max current trough motor
coil in normal operation
Max RMS current trough
coil in normal operation
Absolute error on coil current
Error on current ratio Icoilx / Icoily
On resistance for each pin
(including bond wire)
IMSmax Peak
800
570
mA
mA
MOTXP
MOTXN
MOTYP
MOTYN
IMSmax RMS
IMSabs
IMSrel
-10
-7
10
7
%
%
To be confirmed by
characterization
HZ mode
RDSon
1
Ω
IMSL
Pull down current
1
mA
Thermal Warning & Shutdown
Ttw
Ttsd
Tlow
Thermal warning
Thermal shutdown (1)
Low temperature warning
138
145
Ttw+10
Ttw-155
152
°C
°C
°C
Supply & Voltage Regulator
Vbb
VbbOTP
Nominal operating supply range (2)
Supply voltage for OTP zapping
Stop voltage high threshold
Stop voltage low threshold
Total current consumption
6.5
9.0
18
V
V
V
V
10.0
9.8
9.0
UV1
UV2
Ibat
VBB
8.0
8.5
10
Unloaded outputs
8V < Vbb < 18V
Cload = 1µF (+100nF cer.)
Vbb < UV2
mA
Internal regulated output (3)
Vdd
4.75
5
2
5.35
V
IddStop
VddReset
IddLim
VDD
Digital current consumption
Digital supply reset level (4)
Current limitation
mA
V
mA
4.4
40
Pin shorted to ground
Switch Input and Hardwire Address Input
Rt_OFF
Rt_ON
Switch OFF resistance (5)
10
6
kΩ
kΩ
,
Switch to Gnd or Vbat
Switch ON resistance (5)
Vbb range for guaranteed
operation of SWI and HW
Maximum voltage
2
SWI
HW
Vbb_sw
29
V
Vmax_sw
Ilim_sw
T < 1s
Short to Gnd or Vbat
40V
V
mA
Current limitation
30
Serial Interface Pins
VIL
VIH
Input level low (6)
Input level high (7)
-0.5
0.7 Vdd
0.3 Vdd
Vdd + 0.5
V
V
Noise margin at the LOW level
for each connected device
(including hysteresis)
Noise margin at the HIGH level
for each connected device
(including hysteresis)
VnL
SDA
SCK
0.1VDD
0.2VDD
V
V
VnH
Charge Pump
Vbb > 15V
Vbb > 8V
Vbb+10 Vbb+12.5
Vbb+5.8V
220
Vbb+15
V
V
nF
Vcp
Output voltage
VCP
Cbuffer
Cpump
External buffer capacitor
External pump capacitor
470
470
CPP
CPN
220
nF
Notes
(1) No more than 100 cumulated hours in life time above
Ttsd.
(5) External resistance value seen from pin SWI or HW,
including 1kΩ series resistor.
(2) Communication over serial bus is operating. Motordriver
is disabled when Vbb < UV2.
(6) If input voltage ≤ 0.3V, then a resistor of 22 to 100Ω
must be added in series.
(3) Pin VDD must not be used for any external supply.
(4) The RAM content will not be altered above this voltage.
(7) In case 100kHz ≤ fSCL ≤ 360kHz VIH min = 0.7VDD.
AMI Semiconductor - Rev. 2.3
5
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