AMIS-30522 Datasheet, PDF (7/28 Pages) AMI SEMICONDUCTOR – Micro-stepping Motor Driver

AMIS-30522 Micro-stepping Motor Driver
Data Sheet
CS
0,2 VCC
tSET_CSB
tCLK
tSET_CLK
0,2 VCC
CLK
DI
0,2 VCC
tSET_DI
0,8 VCC
tCLK_HI
tHOLD_DI
tCLK_LO
0,2 VCC
0,8 VCC
VALID
Figure 4: SPI Timing
PC20070608.1
7.0 Typical Application Schematic
C5
100 nF
µC
100 nF
C4
100 nF 100 nF
C2
C3
C1
C6
VDD
VBB
VBB
220 nF
D1
100 µF
VBAT
VCP
POR/WD
DIR
NXT
DO
DI
CLK
AMIS-30522
CPN
C7
220 nF
CPP
MOTXP
MOTXN
CS
M
CLR
MOTYP
ERR
SLA
MOTYN
R1
C8
GND
PC20070604.10
Figure 5: Typical Application Schematic AMIS-30522
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%
AMI Semiconductor – June 2007, M-20684-001
7
www.amis.com
Unit
µF
nF
nF
nF
nF
nF
nF
kΩ