AMIS-30621 LIN Micro-stepping Motor Driver
Data Sheet
10.0 AC Parameters
The AC parameters are given for Vbb and temperature in their operating ranges.
The LIN transmitter/receiver parameters conform to LIN Protocol Specification Revision 1.3. Unless otherwise specified 8V < V
bb
< 18V,
Load for propagation delay = 1kΩ, Load for slope definitions: [L1] = 1nF / 1kΩ; [L2] = 6.8nF / 660Ω; [L3] = 10nF / 510Ω.
Table 6: AC Parameters
Symbol
Pin(s)
Power-up
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
T
pu
Internal Oscillator
Power-up time
Frequency of internal oscillator
Guaranteed by design
3.6
Extrapolated between 40%
and 60% Vbus_dom
T_slope_F – T_slope_R
4.0
10
4.4
ms
MHz
f
osc
LIN Transmitter
T_slope_F/R
T_slope_Sym
T_tr_F
T_tr_R
Tsym_tr
LIN Receiver
Slope time falling or rising edge
Slope time symmetry
LIN
(1)
3.5
-4
0.1
0.1
1
1
22.5
4
4
4
2
µs
µs
µs
µs
µs
Propagation delay TxD low to bus
Propagation delay TxD high to bus
Transmitter delay symmetry
T_tr_F – T_tr_R
-2
T_rec_F
T_rec_R
Tsym_rec
T
wake
T
sw
T
sw_on
Motor Driver
LIN
Propagation delay bus dominant to
RxD low
Propagation delay bus recessive to
RxD high
Receiver delay symmetry
T_rec_F – T_rec_R
Wake-up delay time
Scan pulse period
(2)
(2)
0.1
0.1
-2
50
4
4
6
6
2
µs
µs
µs
µs
µs
µs
100
1024
64
200
Switch Input and Hardwire Address Input
SWI HW2
Scan pulse duration
F
pwm
F
jit_depth
T
brise
T
bfall
Charge Pump
PWM frequency
MOTxx
(2)
PWMfreq = 0
PWMfreq = 1
PWMJen = 1
(3)
(3)
(3)
20.6
41.2
22.8
45.6
10
170
140
250
25.0
50.0
kHz
kHz
%
ns
ns
kHz
PWM jitter modulation depth
Turn-on transient time
Turn-off transient time
Between 10% and 90%
f
CP
CPN CPP Charge pump frequency
(2)
Notes:
(1) For loads [L1] and [L2].
(2) Derived from the internal oscillator.
(3) See
and
.
AMI Semiconductor
– Sept. 2007, Rev 1.5
8
www.amis.com
AMI [ AMI SEMICONDUCTOR ]
