AMIS-30521 Datasheet, PDF (7/26 Pages) AMI SEMICONDUCTOR – Micro-stepping Motor Driver

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