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SI-7321M Datenblatt(PDF) 2 Page - Sanken electric

Teilenummer SI-7321M
Bauteilbeschribung  Unipolar 2-Phase Microstepping Motor Driver IC
Download  19 Pages
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Hersteller  SANKEN [Sanken electric]
Direct Link  http://www.sanken-ele.co.jp/en
Logo SANKEN - Sanken electric

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SANKEN ELECTRIC CO., LTD.
Unipolar 2-Phase Microstepping Motor Driver IC
SI-7321M
28210.05
Selection Guide
Part Number
Package
Packing
SI-7321M
SOP 44-pin surface mount
2000 pieces/ 13-in. reel
Features and Benefits (continued)
All performance characteristics given are typical values for circuit or
system baseline design only and are at the nominal operating voltage and
an ambient temperature, TA, of 25°C, unless otherwise stated.
reference current ratio
▪ Built-in synchronous rectifying circuit reduces losses at PWM
switch-off
▪ Synchronous PWM chopping function prevents motor noise in
Hold mode
▪ Built-in current sensing for each phase, set externally
▪ Dual sleep modes reduce IC input current in stand-by state
▪ Built-in protection against motor coil opens and shorts
• User-configurable operation options, set by external logic input:
▫ Blanking time: 1.8 μs or 3.6 μs
▫ Sequencer timing on Clock input rising (POS) edge or both
rising and falling (POS/NEG) edges
▫ Protection features enable or disable
Absolute Maximum Ratings
Characteristic
Symbol
Notes
Rating
Units
Load Supply Voltage
VM
46
V
Main Power Supply Voltage
VBB
46
V
Logic Supply Voltage
VDD
6V
Output Current
IO
Current ratio mode F; output current rating may be
limited by duty cycle, ambient temperature, and
heat sinking; under any set of conditions, do not
exceed the specified junction temperature, TJ
1.5
A
Logic Input Voltage
VIN
–0.3 to VDD+0.3
V
REF Input Voltage
VREF
–0.3 to VDD+0.3
V
Sense Voltage
VRS
tw < 1 μs not considered (tw = dead time after the
sense voltage exceeds ±2 V)
±2
V
Power Dissipation
PD
Using Sanken evaluation board at 25°C; rating
significantly affected by the application PCB layout
3.5
W
Junction Temperature
TJ
150
°C
Ambient Temperature
TA
–20 to 80
°C
Storage Temperature
Tstg
–30 to 150
°C
Recommended Operating Conditions
Characteristic
Symbol
Conditions
Min.
Typ.
Max.
Unit
Load Supply Voltage
VM
44
V
Main Power Supply Voltage
VBB
10–44
V
Logic Supply Voltage
VDD
Surge voltage at VDD pin should be less
than ±0.5 V to avoid malfunctioning in
operation
3.3
5.5
V
REF Input Voltage
VREF
Protection features disabled
0.04
1.0
V
Protection features enabled
0.04
0.5
V
Case Temperature
TC
Measured at center of case on branded
side
85
°C


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