AMIS−30511
Table 5. AC Parameters (The AC parameters are given for V and temperature in their operating ranges.)
BB
Symbol
Pin(s)
Parameter
Remark/Test Conditions
Min.
Typ.
Max.
Unit
Internal Oscillator
f
Frequency of internal oscillator
3.6
4
4.4
MHz
osc
MOTORDRIVER
MOTxx PWM frequency
f
Frequency depends only on
internal oscillator
20.8
41.6
22.8
45.6
24.8
49.6
kHz
kHz
Hz
PWM
Double PWM frequency
PWM Jitter frequency
f
j
f
d
PWM Jitter depth
% f
PWM
Tb
MOTxx turn−on voltage slope, 10% to 90%
EMC[1:0] = 00
EMC[1:0] = 01
EMC[1:0] = 10
EMC[1:0] = 11
EMC[1:0] = 00
EMC[1:0] = 01
EMC[1:0] = 10
EMC[1:0] = 11
150
100
50
V/ms
V/ms
V/ms
V/ms
V/ms
V/ms
V/ms
V/ms
rise
I
= 800 mA
MD
25
Tb
MOTxx turn−off voltage slope, 90% to 10%
= 800 mA
150
100
50
fall
I
MD
25
DIGITAL OUTPUTS
T
H2L
DO
ERRB
Output fall−time from V to V
inL
Capacitive load 400 pF and
pull−up resistor of 1.5 kW
50
ns
inH
CHARGE PUMP
f
CPN
CPP
Charge pump frequency
250
kHz
CP
T
MOTxx Start−up time of charge pump
CLR FUNCTION
CLR
NXT FUNCTION
Spec external components
CPU
T
Hard reset duration time
20
−
90
ms
CLR
t
NXT minimum, high pulse width
NXT minimum, low pulse width
See Figure 2
See Figure 2
See Figure 2
See Figure 2
2
ms
ms
ms
ms
NXT_HI
t
2
NXT_LO
NXT
t
NXT hold time, following change of DIR
NXT hold time, before change of DIR
0.5
0.5
DIR_SET
t
DIR_HOLD
t
t
NXT_LO
NXT_HI
0,5 V
CC
NXT
DIR
t
t
DIR_HOLD
DIR_SET
VALID
Figure 2. NXT−input Timing Diagram
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