AMIS-30622 Datasheet, PDF (8/42 Pages) AMI SEMICONDUCTOR – I2C Microstepping Motordriver

AMIS-30622
5. 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
IMSmax
Max current trough motor coil in
Peak
normal operation
IMSmax
RMS
IMSabs
IMSrel
RDSon
MOTXP
MOTXN
MOTYP
MOTYN
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)
To be confirmed by
characterization
IMSL
Pull down current
HZ mode
Thermal warning & shutdown
Ttw
Thermal Warning
Ttsd
Thermal shutdown (1)
Tlow
Low temperature warning
Supply & Voltage regulator
Vbb
Nominal operating supply range (2)
VbbOTP
Supply voltage for OTP zapping
UV1
VBB Stop voltage high threshold
UV2
Stop voltage low threshold
Ibat
Total current consumption
Unloaded outputs
Vdd
Internal regulated output (3)
8V < Vbb < 18V
Cload = 1µF (+100nF cer.)
IddStop VDD Digital current consumption
Vbb < UV2
VddReset
Digital supply reset level (4)
IddLim
Current limitation
Pin shorted to ground
Switch input and hardwire address input
Rt_OFF
Rt_ON
Switch OFF resistance (5)
Switch ON resistance (5)
Switch to Gnd or Vbat,
Vbb_sw
SWI Vbb range for guaranteed operation
HW of SWI and HW
Vmax_sw
Maximum voltage
T < 1s
Ilim_sw
Current limitation
Short to Gnd or Vbat
Serial interface pins
800
mA
570
mA
-10
10
%
-7
7
%
1
Ω
1
mA
138
145
152
°C
Ttw+10
°C
Ttw-155
°C
6.5
18
V
9.0
10.0
V
9.8
V
8.0
8.5
9.0
V
10
mA
4.75
5
5.35
V
2
mA
4.4
V
40
mA
10
kΩ
2
kΩ
6
29
V
40V
V
30
mA
VIL
Input level low (6)
-0.5
0.3 Vdd V
VIH
Input level high (7)
0.7 Vdd
Vdd + 0.5 V
Noise margin at the LOW level for
VnL
SDA _{each connected device (including}
SCK _hysteresis)
0.1VDD
V
Noise margin at the HIGH level for
VnH
each connected device (including
hysteresis)
0.2VDD
V
Charge pump
Vcp
Cbuffer
Cpump
VCP
CPP
CPN
Output voltage
External buffer capacitor
External pump capacitor
Vbb > 15V
Vbb > 8V
Vbb+10 Vbb+12.5 Vbb+15 V
Vbb+5.8V
V
220
470
nF
220
470
nF
Notes
(1) No more than 100 cumulated hours in life time above Ttsd
(2) Communication over serial bus is operating. Motordriver is disabled when Vbb < UV2
(3) Pin VDD must not be used for any external supply
(4) The RAM content will not be altered above this voltage
(5) External resistance value seen from pin SWI or HW, including 1kΩ series resistor
(6) If Input voltage ≤ -0.3 Volts, then a resistor of 22 to 100Ω must be added in series
(7) In case 100 kHz ≤ f_SCL ≤ 360kHz V_IH min = 0.7V_DD
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