AMIS-30622_13 Datasheet, PDF (6/50 Pages) ON Semiconductor – I2C Micro-Stepping Motor Driver

AMIS−30622
DC PARAMETERS
The DC parameters are guaranteed overtemperature and V_BB in the operating range, unless otherwise specified. Convention:
currents flowing into the circuit are defined as positive.
Table 5. DC PARAMETERS
Symbol Pin(s)
Parameter
Test Conditions
Min
Typ
Max
Unit
MOTORDRIVER
I_MSmax,Peak
Max current through motor coil
in normal operation
V_BB = 14 V
800
mA
I_MSmax,RMS
Max rms current through coil in
normal operation
V_BB = 14 V
570
mA
I_MSabs
I_MSrel
R_DS(on)
MOTXP
MOTXN
MOTYP
MOTYN
Absolute error on coil
current (Note 4)
Matching of X & Y
coil currents
On resistance for each
motor pin at I_MSmax
(Note 5)
I_MSL
Pulldown current
I²C SERIAL INTERFACE
V_BB = 14 V
−10
V_BB = 14 V
−7
V_BB = 12 V, T_j = 50°C
V_BB = 8 V, T_j = 50°C
V_BB = 12 V, T_j = 150°C
V_BB = 8 V, T_j = 150°C
HiZ mode, V_BB = 7.8 V
0
0.50
0.55
0.70
0.85
2
10
%
7
%
1
W
1
W
1
W
1
W
mA
V_IL
Input level low (Note 10)
V_IH
Input level high (Note 11)
V_nL
Noise margin at the LOW level
SDA _{for each connected device}
SCK _{(including hysteresis)}
−0.5
0.7 * V_DD
0.1 * V_DD
0.3 * V_DD
V
V_DD + 0.5
V
V
V_nH
Noise margin at the HIGH level
for each connected device
(including hysteresis)
0.2 * V_DD
THERMAL WARNING & SHUTDOWN
T_tw
Thermal warning
(Notes 6 and 7)
138
145
152
°C
T_tsd
Thermal shutdown (Note 8)
T_low
Low temperature warning (Note
8)
T_tw + 10
°C
T_tw − 155
°C
SUPPLY AND VOLTAGE REGULATOR
V_bbOTP
Supply voltage for OTP
zapping (Note 9)
9.0
10.0
V
UV₁
Stop voltage high threshold
UV₂
V_{BB Stop voltage low threshold}
7.7
8.3
8.9
V
7.0
7.5
8.0
V
I_bat
Total current consumption
Unloaded outputs
V_BB = 29 V
3.50
10.0
mA
4. Tested in production for 800 mA, 400 mA, 200 mA and 100 mA current settings for both X and Y coil.
5. Not measured in production. Guaranteed by design.
6. Parameter guaranteed by trimming relevant OTP’s in production test at 143°C (±5°C) and V_BB = 14 V.
7. No more than 100 cumulated hours in life time above Tw.
8. Thermal shutdown and low temperature warning are derived from thermal warning. Guaranteed by design.
9. A buffer capacitor of minimum 100 mF is needed between V_BB and GND. Short connections to the power supply are recommended.
10. If input voltages < − 0.3 V, than a resistor between 22 W to 100 W needs to be put in series.
11. If the I²C−bus is operated in Fast Mode V_IHmin = 0.7 * V_DD.
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