Microstepping Controller. IXMS150PSI Datasheet

IXMS150PSI Controller. Datasheet pdf. Equivalent

IXMS150PSI Datasheet
Recommendation IXMS150PSI Datasheet
Part IXMS150PSI
Description High Performance Dual PWM Microstepping Controller
Feature IXMS150PSI; High Performance Dual PWM Microstepping Controller Type IXMS150 PSI Package 24-Pin Skinny DIP Temper.
Manufacture IXYS Corporation
Datasheet
Download IXMS150PSI Datasheet





IXYS Corporation IXMS150PSI
High Performance Dual PWM Microstepping Controller
Type
IXMS150 PSI
Package
24-Pin Skinny DIP
Temperature Range
-40°C to +85°C
The IXMS150 is a high performance
monolithic 2-channel PWM controller.
Implemented in CMOS, the low power
IXMS150 precisely controls the current
in each of two separate power H-bridge
drivers using unique sampling and
www.DataSheets4iUgn.caolmprocessing techniques. Each
channel contains an error amplifier,
PWM, feedback amplifier, and protec-
tion circuitry. Protection features include
over/excess current shutdown, min/max
duty cycle clamp, under voltage lock-
out, dead time insertion, and a shutdown
input for over-temp or other external
fault circuitry. Other features include a
common oscillator, feedforward circuit
for motor supply compensation, and an
onchip negative bias generator.
The IXMS150 has been optimized for
microstep control of two phase step
motors. Due to its high level of accu-
Block diagram of IXMS 150
racy, the IXMS150 will allow a designer
to implement a control system with a
resolution in excess of 250 microsteps
per step, or 50,000 steps per revolution
with a 200 step per revolution step
motor. The IXMS150 greatly improves
positioning accuracy and virtually
eliminates low speed velocity ripple and
resonance effects at a fraction of the cost
of a board level microstepping system.
Other applications which the IXMS150
is designed for include control of two
single-phase (DC) motors or control of
synchronous reluctance motors. The
IXMS150 is ideal for robotics, printers,
plotters, and x-y tables and can facilita-
te the construction of very sophisticated
positioning control systems while signi-
ficantly reducing component cost, board
space, design time and systems cost.
Features
l Two complete, synchronous PWMs
l Command input range ±2.0 V full
scale
l ±0.625 V full scale current feedback
signal
l 1% gain matching between channels
without external trim
l 1.6% gain linearity
l Feedforward to compensate for
motor supply variations
l Only one sense resistor per H-bridge
needed
l Onboard two level current limiting
l Undervoltage lockout assures proper
behavior on power up and power
down
l Enable input for external over
temperature or fault circuit input
l Duty cycles limited for AC coupled
gate drive
l Wide range of built in dead time.
l On board negative power supply
generator
l Single +12 V supply operation
l 24-pin DIP package
Symbol
VDD
VIN
VO
PD
TA
Tstg
Definition
Supply voltage
Operating range
Common-mode-range
Differential Input voltage ¬
Input voltage ¬
Output voltage
Maximum power dissipation
Ambient temperature range
Storage temperature range
Max. Ratings
-0.3...15
10.8...13.2
-15...15
±30
-15...15
-0.3...VDD+0.3
500
V
V
V
V
V
V
mW
-40...85 °C
-55...125 °C
¬ Input voltage may not exceed either supply rail by more than 0.3 V at any time.
IXYS reserves the right to change limits, test conditions and dimensions.
© 1998 IXYS All rights reserved
Applications
l Full, half quarter, or microstepping
2-phase step motor position
controller
l Dual DC servo motor torque
controller
l Solenoid actuator force controller
l General 2-channel current-
commanded PWM control
I - 35



IXYS Corporation IXMS150PSI
IXMS 150
Symbol
Definition/Condition
Characteristic Values
(VDD = 12 V, TA = 25°C unless otherwise specified)
min. typ. max.
Oscillator
fOSC
VA(p-p)
ZOUT
Frequency
Amplitude
Co
Output Impedance
Resistance Range Ro
Capacitance Range Co
Feed Forward
VFFWD
Feedforward
Voltage
www.DaZtaINSFFheet4U.comImpedance to AGND
Analog Inputs
VFS Input FullScale VINA
VINB
ZIN1 VIN to Comp2
Impedance
ZIN2 Comp1 to Comp2
Impedance
FFWD = OPEN
± IOUT = 400 µA
FFWD = Open
DC
DC
DC
10
7
2.5
15
100
3.5
25 45
20 32
12 20
400
100
2000
±2
kHz
V
m
k
pF
V
k
V
k
k
Sense Inputs
SENSEA
VSENSE
Full Scale Input SENSEB
ZINS Input Impedance
Protection Circuit
VOV-1
Over Current
Voltage
SENSEA
SENSEB
tOV-1 Reset Pulse Width
DC
DC
±0.625 V
100 200
k
0.8 0.95 1.0
0.5 1
V
µs
VEX-1
tEX-1
Excess Current Voltage
Reset Pulse Width
Under Voltage
VUV
Minimum VDD
OUTDIS
IIH Input High Current
IIL Input Low Current
Outputs
VOH Output High VOUTA, VOUTA
Voltage
VOL Output Low VOUTB, VOUTB
Voltage
tr Rise Time
tf Fall Time
TDT Dead-Time
TMIN Minimum Pulse Width
VBB Generator
VBBmin
Minimum
Negative Bias
VBB
VBB Negative Bias
Voltage
VREG
Load Regulation
VOH
VOL
Supply
IDD1
IDD2
Output High Volt. CPUMP
Output Low Volt.
Idle Current
VDD
Operating Current
VBYPASS
ZINBP
Bypass Voltage BYPASS
Impedance to AGND
3.45 3.6
300
7.5 8
VIH = 11.5 V
VIL = 0.5 V
100
1.8
IOH = -10 mA 8.0 11.2
IOL = 10 mA
0.8
CL = 100 pF
35
CL = 100 pF
35
Co = 180 pF 200 300
Cp = 30 pF 0.6 0.8
OUTDIS -1.4 -1.9
= VDD
IOUT = -3 mA -2.1 -2.4
fOSC
= 100 kHz
IOH = -10 mA
IOL = 32 mA
60
11.2
0.8
VIN = 0
fOSC
= 100 kHz
16
15
5.9
9 16
3.75
8.5
1.1
50
50
450
1.5
26
45
16.1
V
ns
V
µA
mA
V
V
ns
ns
ns
µs
V
V
mV
V
V
mA
mA
V
k
Dimensions in inch (1" = 25.4 mm)
24-Pin Skinny DIP
I - 36
© 1998 IXYS All rights reserved



IXYS Corporation IXMS150PSI
Pin Description IXMS 150
IXMS 150
Nomenclature of Dual PWM
Microstepping Controller
www.DataSheet4U.com
Sym. Pin Description
AGND 1 Analog Ground
COMP 2 Analog Compensation
4 (see application notes for
5 recommendations).
20
21
23
VIN 3 Analog Input: The analog
22 input range is ± 2 V. A low
output im pedance voltage
source should drive these
pins. The input is greater
than 20 k.
SENSE 6 Analog Sense: Each of the
19 phases sense resistors are
connected to these pins.
Input range is +0.625 V.
FFWD 7 FFWD, for Motor High
Voltage Compensation: A
voltage on this pin sets the
oscillator amplitude. Input
range = 0.9-4 V (see
application notes for
recommendations).
BY- 8 Filter Cap: A capacitor on
PASS
this pin provides filtering to
the internal bias network.
VOUT 9 Output Stage: To drive
10 buffered power MOSFET
15 H-Bridge.
16
VBB
11 Negative Bias Generator
Output: For internal use by
the IXMS 150.
DGND 12 Digital Ground
CPUMP 13 Charge Pump Capacitor:
Used by the internal
Negative Bias Generator.
OUTDIS 14 Digital ENABLE input and
STATUS output: Forcing this
pin low causes pins 9, 10,
15, and 16 to go low, disab-
ling the H-bridge. When uses
as an output, a low state on
this pin indicates an over
current, excess current, or
insufficient +VDD or VBB error
condition.
RO, CO
17 Oscillator Frequency and
18 Dead-time set: Independent
adjustment can be made to
the oscillator frequency and
dead-time (see applications
notes).
VDD 24 Positive Supply Voltage
* Pin numbers in parantheses are
associated with channel B.
IXMS 150 PS I (Example)
IX IXYS
MS 150
Dual PWM Controller
Package Type
PS Plastic Skinny DIP
Temperature Range
I Industrial
© 1998 IXYS All rights reserved
I - 37





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