AMIS-30621 Datasheet, PDF (8/59 Pages) AMI SEMICONDUCTOR – LIN Microstepping Motordriver

AMIS−30621
AC PARAMETERS
The AC parameters are guaranteed for temperature and V_BB in the operating range unless otherwise specified.
The LIN transmitter and receiver physical layer parameters are compliant to LIN rev. 2.0 & 2.1.
Table 6. AC PARAMETERS
Symbol Pins
Parameter
Test Conditions
POWERUP
T_pu
Powerup Time
INTERNAL OSCILLATOR
Guaranteed by Design
f_osc
Frequency of Internal Oscillator V_BB = 14 V
LIN TRANSMITTER CHARACTERISTICS ACCORDING TO LIN V2.0 & V2.1
D1
Duty Cycle 1 = t_{Bus_rec(min)}/
THRec(max)= 0.744 x V_BB
(2 x t_Bit); See Figure 5
THDom(max)= 0.581 x V_BB;
V_BB = 7.0 V...18 V; t_Bit =
50 ms
LIN
D2
Duty Cycle 2 = t_{Bus_rec(max)}/
THRec(min)= 0.284 x V_BB
(2 x t_Bit); See Figure 5
THDom(min)= 0.422 x V_BB;
V_BB = 7.6 V...18 V;
t_Bit = 50 ms
LIN RECEIVER CHARACTERISTICS ACCORDING TO LIN V2.0 & V2.1
trx_pdr
Propagation delay bus dominant V_BB = 7.0 V & 18 V;
to RxD = Low
See Figure 5
trx_pdf
LIN
Propagation delay bus recess- V_BB = 7.0 V & 18 V;
ive to RxD = High
See Figure 5
trx_sym
Symmetry of receiver propaga- trx_pdr – trx_pdf
tion delay
SWITCH INPUT AND HARDWIRE ADDRESS INPUT
T_sw
T_{sw_on}
SWI
HW2
MOTORDRIVER
Scan pulse period (Note 14)
Scan pulse duration (Note 14)
V_BB = 14 V
V_BB = 14 V
F_pwm
T_brise
T_bfall
T_stab
PWM frequency (Note 14)
Turn−on transient time
MOTxx _{Turn−off transient time}
Run current stabilization time
(Note 14)
Between 10% and 90%
V_BB = 14 V
CHARGE PUMP
f_CP
CPN Charge pump frequency
V_BB = 14 V
CPP (Note 14)
14. Derived from the internal oscillator
Min
3.6
0.396
−2
18
Typ
4.0
1024
64
20
150
140
1/Vmin
250
Max
10
4.4
0.581
6
6
+2
22.0
Unit
ms
MHz
ms
ms
ms
ms
ms
kHz
ns
ns
s
kHz
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