Intelligent Motion Systems Portable Generator IM2000S User Manual

FEATURES  
Never before has any motion prod- motor and will interface directly to  
uct integrated all the digital control discrete bridges or common mono-  
into one monolithic IC. This high lithic bridge ICs.  
degree of integration can signifi-  
cantly reduce design time as well Designers can now place drivers  
• IM2000S Offers a Complete  
Microstepping Control System  
in a 64 Pin QFP Package  
• Up to 10MHz Step Clock Rate  
Internal Sine/Cosine Generator  
as driver size.  
directly on their PC boards with all  
the necessary control in an ultra  
• PWM Phase Current Control  
• Minimal External Components  
• Automatic Current Reduction  
Beyond the integration of a com- small 64 pin QFP package.  
plete microstepping control system,  
the IM2000S has unique features Size, price and time-to-market are  
that give designers unprecedented three crucial aspects in today’s  
control over motor movement.
 
competitive markets and the  
These features include 14 select-
 
IM2000S offers the ability to re-  
able resolutions (in both decimal 
duce all three.  
and binary) that can be changed at  
• 14 Selectable Resolutions, in  
Both Decimal and Binary  
• Number of Microsteps  
Per Step can be Changed  
On-The-Fly Without Motor  
Movement Interruption  
any time without motor movement  
interruption. There is no need to  
reset the controlle
r
.
T
his allows the  
user to rapidly move long distances,  
PACKAGING INFORMATION  
• Up to 51,200 Steps/Rev  
• Standalone or Buss Modes  
• Single +5 VDC Power Supply  
Dimensions in Inches (mm)  
yet precisely position the motor at  
the end of travel without the need or  
expense of a complex controller.  
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• Short Circuit and Over  
 
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Temperature Protection Inputs  
Another valuable feature is an “On  
Full Step” output which indicates  
when the motor is at an electrical  
full step. This output can be used  
to reduce the overhead needed to  
track position when making long  
moves.  
 
 
• Fault Output  
• On Full Step Output  
• Anti-Resonance Circuitry  
 
 
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DESCRIPTION  
The development of proprietary cir-  
cuits has minimized ripple current,  
while maintaining a 20 KHz chop-  
ping rate. This prevents additional  
motor heating that is common with  
drivers requiring higher chopping  
rates. Now low inductance stepper  
motors can be used to improve  
high speed performance and peak  
system efficiency.  
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The IM2000S is a high perfor-  
mance microstepping controller  
that incorporates a sine/cosine  
signal generator, anti-resonance  
circuitry, PWM current control  
and much more in one monolithic  
IC. The IM2000S combines hard-  
ware intense functions together  
with innovative features to provide  
designers with a powerful yet simple  
solution for their high volume OEM  
products.  
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Enlarged View Above  
Actual Size  
The IM2000S needs only clock  
and direction inputs to control the  
REV101805  
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IM2000S ABSOLUTE  
MAXIMUM RATINGS  
TYPICAL APPLICATION  
48V, 3 Amps (RMS)/Phase Microstepping Driver  
+5V  
+5V  
Symbol  
Parameter  
Limits  
Unit  
V
8
1K  
3
2
+
-
VSS -0.3 to +7.0  
VSS 0.3 to VDD +0.3  
VDD DC Supply Voltage  
1
+5V  
5.1K  
VIN  
Input Voltage  
Output Voltage  
Storage Temp  
V
TLC372  
4
LM234Z  
220pf  
36  
11  
42  
41  
38  
39  
VSA  
VSB  
HLA  
LLA  
HRA  
LRA  
+5V  
VSS 0.3 to VDD  
+0.3  
VOUT  
TSTG  
V
+5V  
+5V  
1
64  
MODE  
WR  
-65 to +150  
°C  
68.1  
R1  
5
6
9
8
5
6
1K  
HLB  
LLB  
HRB  
LRB  
7
+
-
10  
37  
24  
26  
OVCB  
OVCA  
OVV  
3
7
+
-
5.1K  
6
RES SEL 0  
RES SEL 1  
RES SEL 2  
RES SEL 3  
STEP CLOCK  
DIRECTION  
ENABLE  
OVTMP  
TLC372  
2
48  
49  
50  
51  
20  
63  
62  
MSEL0  
MSEL1  
MSEL2  
MSEL3  
CURRED  
FAULT  
FSTEP  
TLC271  
220pf  
8
4
+5V  
35  
34  
33  
32  
31  
30  
29  
28  
SINE0  
SINE1  
SINE2  
SINE3  
SINE4  
SINE5  
SINE6  
SINE7  
59  
60  
+5V  
SCLK  
DIR  
1
2
1
2
10µf  
+
RECOMMENDED  
OPERATING CONDITIONS  
OUT1 VDD  
OUT2  
OUT1  
OUT2  
VDD  
0.1µf  
55  
56  
CIR0  
CIR1  
3
3
GND  
GND  
+5V  
52  
53  
RSEL  
CSEL  
12  
13  
14  
15  
16  
17  
18  
19  
11  
10  
9
15  
16  
11  
10  
9
8
7
6
5
4
15  
16  
DB0  
DB1  
DB2  
DB3  
DB4  
DB5  
DB6  
DB7  
COS0/AD0  
COS1/AD1  
COS2/AD2  
COS3/AD3  
COS4/AD4  
COS5/AD5  
COS6/AD6  
REF  
RFB  
DB0 REF  
DB1  
DB2 RFB  
DB3  
+12 to +48V  
61  
57  
51K  
Symbol  
Parameter  
Min Typ Max Unit  
EN  
8
13  
12  
7
13  
12  
WR  
CS  
RESET  
OSCR  
WR  
CS  
DB4  
DB5  
DB6  
1000µf  
6
30.1K  
+
5
23  
22  
VDD DC Supply Voltage 4.5 5.0 5.5  
V
V
0.1µf  
4
0.47µf  
OSCRC COS7/AD7  
DB7  
47  
46  
1.0nf  
TLC524  
IHI  
ILOW  
TLC524  
VIN  
Input Voltage  
VSS  
VDD  
85  
43  
ENA  
44  
45  
SIGNA  
PWMA  
7
GND  
GND  
GND  
GND  
Operating Temp -20  
TOPR  
°C  
21  
40  
54  
11  
5
2
3
V+  
OUT1  
EN  
11  
2
3
4
EN  
V+  
OUT1  
ENB  
IN1  
5
7
9
3
2
10nf  
10nf  
SIGNB  
PWMB  
IN1  
+5V  
10nf  
10nf  
+5V  
7
4
8
BOOT1  
BOOT2  
IN2  
4
8
ØA  
IN2  
BOOT1  
BOOT2  
27  
ØB  
25  
58  
9
VCC  
VCC  
COUT  
VREF  
VREF  
0.22µf  
1
10  
OUT2  
VSEN  
0.22µf  
1
10  
6
IM2000S  
OUT2  
VSEN  
GND  
6
0.1µf  
0.1µf  
GND  
L6203  
0.5  
2W  
L6203  
0.5  
2W  
ELECTRICAL  
CHARACTERISTICS  
Output Current (AMPS) = 0.002 x R1 (OHMS)  
NOTE: Diodes may be needed on phase outputs depending on input voltage and phase currents used.  
AC Electrical Characteristics  
Symbol  
Parameter  
Min Typical Unit  
BLOCK DIAGRAM  
 
tRW  
RESET pulse width  
200  
nS  
nS  
MSEL, SCLK setup  
time  
 
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tS  
100  
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0
tSW  
tWR  
SCLK pulse width  
WR pulse width  
10  
20  
nS  
nS  
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�  
 
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tWH Data hold time after WR  
fPWM PWM chopping frequency  
fCLK SCLK input frequency  
nS  
 
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20  
KHz  
 
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10 MHz  
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DC Electrical Characteristics  
 
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V
DD
= +5.0 ±10%  
T
OPR
= 25° C  
Symbol  
VIL  
Parameter  
Conditions Min Typ Max Unit  
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Low level input voltage  
High level input voltage  
0.8  
V
V
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VIH  
2.0  
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Schmitt trigger positive  
going threshold voltage  
 
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VT+  
VT–  
VH  
VDD = 5.0  
3.0  
V
V
V
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Schmitt trigger negative  
going threshold voltage  
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VDD = 5.0 0.6  
VDD = 5.0 0.1  
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Schmitt trigger hysteresis  
voltage  
 
 
 
 
 
 
 
 
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IIL  
Low level input current  
High level input current  
VIN = VSS  
VIN = VDD  
1.0 mA  
1.0 mA  
IIH  
VSS  
V
VOL  
VOH  
Low level output voltage  
High level output voltage  
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+0.4  
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VDD  
-0.4  
V
-6.0  
IOL  
IOH  
ICC  
Low level output current  
High level output current  
Supply current  
mA  
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3.0 mA  
30 mA  
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REV101805  
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