AMIS-30623 Datasheet, PDF (10/67 Pages) AMI SEMICONDUCTOR – LIN Microstepping Motordriver

AMIS-30623 LIN Microstepping Motordriver
Data Sheet
11.0 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 7: AC Parameters
Symbol
Pin(s) Parameter
Test Conditions
Power-up
T_pu
Power-up time
Guaranteed by design
Internal Oscillator
f_osc
LIN Transmitter
Frequency of internal oscillator
T_slope_F/R
Slope time falling or rising edge
Extrapolated between 40%
and 60% Vbus_dom
T_slope_Sym
T_tr_F
LIN
Slope time symmetry (1)
T_slope_F – T_slope_R
Propagation delay TxD low to bus
T_tr_R
Propagation delay TxD high to bus
Tsym_tr
Transmitter delay symmetry
T_tr_F – T_tr_R
LIN Receiver
T_rec_F
Propagation delay bus dominant to
RxD low
T_rec_R
LIN
Propagation delay bus recessive to
RxD high
Tsym_rec
Receiver delay symmetry
T_rec_F – T_rec_R
T_wake
Wake-up delay time
Switch Input and Hardwire Address Input
T_sw
T_{sw_on}
SWI
HW2
Scan pulse period (2)
Scan pulse duration
Motordriver
F_pwm
PWM frequency (2)
PWMfreq = 0 (3)
PWMfreq = 1 (3)
F_{jit_depth}
T_brise
T_bfall
PWM jitter modulation depth
MOTxx
Turn-on transient time
Turn-off transient time
PWMJen = 1 (3)
Between 10% and 90%
T_stab
Run current stabilization time
Charge Pump
f_CP
CPN
CPP
Charge pump frequency (2)
Min.
3.6
3.5
-4
0.1
0.1
-2
0.1
0.1
-2
50
20.6
41,2
29
Typ.
4.0
1
1
4
4
100
1024
128
22.8
45,6
10
170
140
32
250
Max.
10
4.4
22.5
4
4
4
2
6
6
2
200
25.0
50,0
35
Unit
ms
MHz
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
µsµs
kHz
kHz
%
ns
ns
ms
kHz
Notes
(1) For loads [L1] and [L2]
(2) Derived from the internal oscillator
(3) See SetMotorParam and PWM regulator
AMI Semiconductor – June 2006, Rev 3.0
10
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