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AMIS-30521 Datasheet(PDF) 7 Page - AMI SEMICONDUCTOR

Part # AMIS-30521
Description  Micro-stepping Motor Driver
PDF  26 Pages
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Manufacturer  AMI [AMI SEMICONDUCTOR]
Direct Link  http://www.amis.com
Logo AMI - AMI SEMICONDUCTOR

AMIS-30521 Datasheet(HTML) 7 Page - AMI SEMICONDUCTOR

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AMIS-30521 Micro-stepping Motor Driver
Data Sheet
7.0 Typical Application Schematic
AMIS-30521
PC20070604.11
VCP
CPP
CPN
CLR
C7
ERR
GND
CS
CLK
DI
DO
NXT
DIR
MOTXP
MOTXN
MOTYP
MOTYN
M
220 nF
100 nF
C5
VBAT
VDD
VBB
VBB
100 nF
220 nF
100
µF
C2
C3
C6
C1
100 nF
100 nF
C4
SLA
C8
R1
µC
D1
VDD
Figure 5: Typical Application Schematic AMIS-30521
Table 8: External Components List and Description
Component
Function
Typ. Value
Tolerance
Unit
C1
VBB buffer capacitor
(1)
100
-20 +80%
µF
C2, C3
VBB decoupling block capacitor
100
-20 +80%
nF
C4
VDD buffer capacitor
220
+/- 20 %
nF
C5
VDD buffer capacitor
100
+/- 20%
nF
C6
Charge pump buffer capacitor
220
+/- 20%
nF
C7
Charge pump pumping capacitor
220
+/- 20%
nF
C8
Low pass filter SLA
1
+/- 20%
nF
R1
Low pass filter SLA
5.6
+/- 1%
k
Ω
D1
Optional reverse protection diode
e.g. 1N4003
Notes:
(1)
Low ESR < 1Ohm.
7
AMI Semiconductor
– June 2007, M-20683-001
www.amis.com



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