Electrical Specifications
HYBRID MICROSTEPPING DRIVERS
WARNING! The IM483H Plus/IM805H Plus components are sensitive to Electrostatic
Discharge (ESD). All handling should be done at an ESD protected workstation.
WARNING! Hazardous voltage levels may be present if using an open frame power
supply to power the IM483H Plus/IM805H Plus!
WARNING! Ensure that the power supply output voltage does not exceed the maxi-
mum input voltage of the IM483H Plus/IM805H Plus!
WARNING! Do not connect or disconnect power leads or motor leads when power is
applied! Disconnect the AC power side to power down the DC power supply.
WARNING! Do not apply power to the IM483H Plus/IM805H Plus without proper heat
sinking or cooling! The TI-22 Isolating Thermal Pad MUST BE used between the IM483H
Plus/IM805H Plus and the heat sink! The maximum rear plate temperature of the IM483H
Plus/IM805H Plus is 85°C.
IM483H Plus & IM805H Plus
Quick Reference/Installation Guide
The primary function of this guide is to acquaint the user with the specifications,
basic wiring and configuration of the IM483H Plus/IM805H Plus Hybrid Micro-
stepping Drivers. The full product manual is available in Acrobat PDF format on the
IMS Product CD. It also may be downloaded from the IMS web site at http://www.
imshome.com.
Notes And Warnings
Please observe the following when handling, connecting and using your IM483H
Plus/IM805H Plus driver. Failure to observe these points may result in damage to the
drive. All warranty and disclaimer information is located in the full product manual
and should be referenced for more information.
Thermal Specifications
Ambient Temperature ....................................................................0° to +50° C
Storage Temperature ................................................................-40° to +125° C
Maximum Plate Temperature ..................................................................+85° C
Soldering the IM483H Plus/IM805H Plus to a PC
Board
The IM483H Plus and IM805H Plus hybrids are designed to be soldered directly to
a PC board. Recommended soldering practices:
Max. Soldering Temp..............................................................................315°C
Max. Soldering Time............................................................................. 10 sec.
TI-22 Thermal Pad – It is ESSENTIAL that the TI-22 IsolatingThermal Pad included with
the IM483H Plus/IM805H Plus be placed between the rear plate of the hybrid and the
heat sink. Use of this pad will improve thermal ow between the driver and the heat sink
as well as isolate the electrical signals present on the rear plate.
For More Information:
See the complete IM483H Plus/IM805H Plus Product Manual
on the IMS Product CD or at www.imshome.com
NOTE: If upgrading your system from an IM483H Plus to an IM805H Plus, or
vice-versa, please note that the Phase A and Phase /A output pins (Pins 7 & 9) are
reversed. This will cause the motor to turn in the opposite direction. To correct this
condition swap the motor wires on Phase A.
IM483H Plus/IM805H Plus Dimensional Information
Dimensions in Inches (mm)
HEAT SINK/FAN/CLIP
ASSEMBLY (HFC-22)
1.25
(31.75)
0.525
(13.34)
13 x 0.100
(13 x 2.54)
PIN DIA.
0.025
(0.64)
PIN DIA.
0.050
(1.27)
THRU HOLE DIA.
2 x 0.150
(2 x 3.81)
2.100
(53.34)
0.780
(19.81)
1.050
(26.67)
0.720
(18.29)
1
141
9P2
P1
0.375
(9.52)
8 x 0.20
(8 x 5.08)
2.350
(59.69)
2.600
(66.04)
23 X 0.156
(3.96)
0.362
(9.19)
OPTIONAL
Test Parameters: TA = 25°C, +V = 48V, Input Voltage Specication Includes Motor Back
EMF
IM483H Plus/IM805H Plus Hybrid
Specications
Obsolete Legacy Specications
Provided for Comparison Only
SPECIFICATION TEST CONDITION / NOTES MIN TYP MAX UNITS MIN TYP MAX UNITS
Input Voltage (IM483H Plus) +12 – +48 V +12 – +48 V
Input Voltage (IM805H Plus) +12 +75 V +24 – +75 V
Phase Output Current (IM483H Plus) RMS – – 3 A 0.4 – 3 A
Peak 0.5 –4.2 A 0.6 – 4 A
Phase Output Current (IM805H Plus) RMS – – 5 A 1 – 5 A
Peak 1–7.1 A 1.4 – 7 A
Quiescent Current (+5V, pin 14) Inputs/Outputs Floating – 140 225 mA – 100 – mA
Active Power Dissipation IOUT = 3A RMS (IM483H Plus) – 7 9 W– – 12 W
IOUT = 5A RMS (IM805H Plus) – 9 12 – – 25
Low Level Input Voltage All Inputs – – 1.2 V – – 0.8 V
High Level Input Voltage All Inputs Except RESET – – 2.0 V – 2.0 – V
RESET – 2.3 – V – 2.3 – V
Input Pull-Up Resistance
RES SEL 0-3, ENABLE – 20 –kΩ 4.94 4.99 5.03 kΩ
STEP CLOCK DIRECTION – 2.0 2.2 kΩ 2.19 2.21 2.23 kΩ
RESET 0.9 1.0 1.1 kΩ 0.9 1.0 1.1 kΩ
FAULT IN – 4.7 –kΩ – – – kΩ
Low Level Output Current FAULT, FULLSTEP, Inactive – – - 2 mA – – -6 mA
High Level Output Current FAULT, FULLSTEP, Active – – 2mA – – 3 mA
Low Level Output Voltage, VOL IOL = 1.4 mA – – 0.5 V – – 0.4 V
High Level Output Voltage, VOH IOH = -1.7 mA 2.3 – – V 4.5 – – V
Step Clock
Rate – – 2.5 MHz – 10 MHz
Width 200 – – nS 50 – – nS
Response – 650 – nS – 100 – nS
Direction Setup/Hold –50/100 – nS – 100 – nS
MSEL Setup – 4– mS – 100 – mS
Full Step (zero cross) Response – 650 – nS – 75 – nS
Reset Pulse Width 1 – – µS 1 – – µS
Enable Response – 4– mS – – – mS
Variable PWM Frequency
(step rate dependent)
min: reset to low speed
max: high speed 20 –60 kHz – 20 – kHz
T
DSU
T
DH
T
SH
T
SL
Direction
Step
TDH = 100 nS Minimum
TDSU = 50 nS Minimum
TSH = 200 nS Minimum
TSL = 200 nS Minimum
Direction Timing Step Clock Timing
Step/Direction Timing - All Plus Hybrids
Bold Italic Text indicates specification changes from the IM483H/IM805H to Plus Versions
intelligent motion systems, INC.
370 N. MAIN ST., PO BOX 457, MARLBOROUGH, CT 06447
PH: (860) 295-6102, FAX: (860) 295-6107
Q U I C K R E F E R E N C E
IM483H Plus and IM805H Plus Quick Reference R032207
