AMIS30512C5122G Datasheet, PDF (6/30 Pages) ON Semiconductor – Micro-Stepping Motor Driver

AMIS−30512
Table 5. 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.
DIGITAL OUTPUTS
t_H2L
DO Output fall-time from V_inH to V_inL
ERRB
Capacitive load 50 pF
CHARGE PUMP
f_CP
CPN Charge pump frequency
250
CPP
t_CPU MOTxx Start-up time of charge pump
CLR FUNCTION
For typ. value C_buffer and
C_pump
t_CLR
CLR Hard reset duration time
20
NXT FUNCTION
t_{NXT_HI}
NXT NXT minimum, high pulse width
See Figure 2
2
t_{NXT_LO}
NXT minimum, low pulse width
See Figure 2
2
t_{DIR_SET}
NXT hold time, following change of DIR
See Figure 2
0.5
t_{DIR_HOLD}
NXT hold time, before change of DIR
See Figure 2
0.5
POWER-UP
t_PU
POR/ Power-up time
WD
t_PD
Power-down time
t_POR
t_RF
WATCHDOG
Reset duration
Reset filter time
V_BB = 12 V, I_LOAD = 50 mA,
C_LOAD = 220 nF. See Figure 3
V_BB = 12 V, I_LOAD = 50 mA,
C_LOAD = 220 nF. . See Figure 3
See Figure 3
100
See Figure 3
1
t_WDTO
t_WDPR
t_WDRD
POR/
WD
Watchdog time out interval
Prohibited watchdog acknowledge delay
Watchdog reset delay
See Figure 3
See Figure 3
32
2
1
Max.
50
2
90
110
110
512
Unit
ns
kHz
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
t_{NXT_HI}
t_{NXT_LO}
NXT
0,5 V_CC
t_{DIR_SET} t_{DIR_HOLD}
DIR ^{ÏÏÏÏÏÏ VALID ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ}
Figure 2. NXT−input Timing Diagram
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