AMIS-30621 LIN Micro-stepping Motor Driver
Data Sheet
Symbol
Pin(s)
Parameter
Switch ON resistance (6)
Test Conditions
Min.
Typ.
Max.
Unit
Rt_ON
2
kΩ
Vbb range for guaranteed operation of
SWI and HW2
Vbb_sw
6
29
V
V
Vmax_sw
Ilim_sw
Maximum voltage
Current limitation
T < 1s
40V
Short to Gnd or Vbat
30
mA
Hardwired Address Inputs and Test Pin
Vlow
Input level high
Input level low
Hysteresis
0.7 * Vdd
.
V
V
V
HW0
HW1 TST
Vhigh
0.3 * Vdd
HWhyst
0.075 * Vdd
Charge Pump
Vbb > 15V
Vbb+10
2 * Vbb – 5
220
Vbb+12.5
Vbb+15
2 * Vbb
470
V
V
Vcp
Output voltage
VCP
8V < Vbb < 15V
2 * Vbb – 2.5
Cbuffer
External buffer capacitor
nF
nF
Cpump
CPP CPN External pump capacitor
220
470
Notes:
(1) No more than 100 cumulated hours in life time above Ttsd
.
(2) Thermal shutdown and low temperature warning are derived from thermal warning.
(3) A 10μF buffer capacitor of between VBB and GND is minimum needed. Short connections to the power supply are recommended.
(4) Pin VDD must not be used for any external supply.
(5) The RAM content will not be altered above this voltage.
(6) External resistance value seen from pin SWI or HW2, including 1 kΩ series resistor.
AMI Semiconductor – Sept. 2007, Rev 1.5
7
www.amis.com
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