AMIS-30532_15 Datasheet, PDF (8/29 Pages) ON Semiconductor – Micro-Stepping Motor Driver

AMIS−30532
Table 6. AC PARAMETERS (The AC parameters are given for V_BB and temperature in their operating ranges)
Symbol Pin(s)
Parameter
Remark/Test Conditions
Min
Typ
INTERNAL OSCILLATOR
f_osc
MOTORDRIVER
f_PWM
MOTxx
f_d
Tb_rise
Frequency of internal oscillator
PWM frequency
Double PWM frequency
PWM Jitter depth (Note 11)
Turn−on voltage slope, 10% to 90%
MOTxx
Frequency depends only on
internal oscillator
EMC[1:0] = 00
EMC[1:0] = 01
EMC[1:0] = 10
3.6
4.0
20.8 22.8
41.6 45.6
10
350
250
200
EMC[1:0] = 11
100
Tb_fall
Turn−off voltage slope, 90% to 10% EMC[1:0] = 00
350
MOTxx
EMC[1:0] = 01
250
EMC[1:0] = 10
200
EMC[1:0] = 11
100
DIGITAL OUTPUTS
T_H2L
DO
ERR
Output fall−time from V_inH to V_inL
Capacitive load 400 pF and
pullup resistor of 1.5 kW
CHARGE PUMP
f_CP CPN CPP Charge pump frequency
250
T_CPU
MOTxx Start−up time of charge pump
(Note 12)
Spec external components in
Table 8
CLR FUNCTION
T_CLR
CLR Hard reset duration time
100
POWERUP
t_PU
t_POR
POR /
WD
t_RF
WATCHDOG
Powerup time
Reset duration
Reset filter time
V_BB = 12 V, I_LOAD = 50 mA,
C_LOAD = 220 nF
See Figure 16
100
See Figure 16
1.0
t_WDTO
t_WDPR
POR /
WD
Watchdog time out interval
Prohibited watchdog acknowledge
delay
32
2.0
NXT FUNCTION
t_{NXT_HI}
NXT Minimum, High Pulse Width
See Figure 5
2.0
t_{NXT_HI}
NXT Minimum, Low Pulse Width
See Figure 5
2.0
t_{DIR_SET}
NXT _{NXT Hold Time, Following Change of See Figure 5}
0.5
DIR
t_{DIR_HOLD}
NXT Hold Time, Before Change of DIR See Figure 5
0.5
11. Characterization Data Only
12. Guaranteed by design
Max Unit
4.4
MHz
24.8
49.6
kHz
kHz
% f_PWM
V/ms
V/ms
V/ms
V/ms
V/ms
V/ms
V/ms
V/ms
50
ns
kHz
5
ms
ms
110
ms
ms
ms
512
ms
ms
ms
ms
ms
ms
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