AMIS-30421 Datasheet, PDF (7/41 Pages) ON Semiconductor – Micro-Stepping Stepper Motor Bridge Controller

AMIS−30421
Table 4. DC PARAMETERS
The DC parameters are given for V_BB and temperature in their operating ranges unless otherwise specified.
Convention: currents flowing in the circuit are defined as positive.
Symbol Pin(s)
Parameter
Remark/Test Conditions
Min
Typ
Max Unit
PRE−DRIVER
V_SENS0
PWM comparator toggle level 0
V_SENS1
PWM comparator toggle level 1
V_SENS2
PWM comparator toggle level 2
V_SENS3
V_SENS4
PWM comparator toggle level 3
RSENSxx
PWM comparator toggle level 4
V_SENS5
PWM comparator toggle level 5
V_SENS6
PWM comparator toggle level 6
V_SENS7
PWM comparator toggle level 7
DIGITAL INPUTS
78
100
122
mV
105.3
135
164.7 mV
156
200
244
mV
210.6
270
391.4 mV
261.3
335
408.7 mV
312
400
488
mV
390
500
610
mV
468
600
732
mV
V_IL
Logic Low Threshold
CLK, DI,
V_IH
CSb, ^{Logic High Threshold}
NXT, DIR,
R_pd
CLR _{Internal Pull Down Resistor}
CSb excluded,
See also Figure 3
0
0.7 x V_DD
0.3 x V_DD V
V_DD
V
25
50
75
kW
R_pu
CSb
DIGITAL OUTPUTS
Internal Pull Up Resistor
See also Figure 3
25
50
75
kW
V_OL
V_OH
V_{OL_OPEN}
DO,
ERRb,
WDb
Logic low output level
Logic high output level
Logic Low level open drain
Output set to type 4 (see
Figure 3)
V_DD − 0.5
I_OL = 8 mA, Output set to type 2
(see Figure 3)
0.5
V
0.5
SPEED AND LOAD ANGLE OUTPUT
V_out
Output Voltage Range
V_off
Output Offset SLA−pin
V_{off_tol}
G_SLA
G_{SLA_tol}
R_out
Tolerance on SLA output offset
SLA Gain of SLA−pin = VBEMF / VSLA
Tolerance on SLA gain
Output Resistance SLA−pin
I_{SLA_load}
Load current SLA−pin
THERMAL WARNING & SHUTDOWN
T₁
Trigger level thermal range 1
T₂
T₃
T_TW
T_TSD
Trigger level thermal range 2
Trigger level thermal range 3
Thermal Warning
Thermal shutdown
CHARGE PUMP
Selectable through SPI
Selectable through SPI
See also Figure 3
See Figure 22
See Figure 22
See Figure 22
See Figure 22
See Figure 22
0.5
0.6
−17
0.0625
−10
0
V_DD − 0.5 V
1.2
V
+17
%
1
+10
%
1
kW
−40
mA
−5
15
35
°C
55
70
85
°C
138
150
162
°C
138
150
162
°C
T_TW + 20
°C
V_CP − V_BB
Chargepump overdrive voltage
V_CPP –
V_CPN
VCP Chargepump pumping voltage
C_pump
External pump capacitor
C_buffer CPP CPN External buffer capacitor
Based on Figure 9
See also C₂ Figure 9
See also C₃ Figure 9
3.5
V_BB – 2.5 15.75
V
3.5
V_BB – 2.5 15.75
V
220
nF
220
nF
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