LV8732V-TLM-H Datasheet, PDF (1/26 Pages) ON Semiconductor – PWM Constant-Current Control Stepper Motor Driver

Ordering number : ENA1483B
LV8732V
Monolithic Linear IC
PWM Constant-Current Control
Stepper Motor Driver
http://onsemi.com
Overview
The LV8732V is a 2-channel H-bridge driver IC that can switch a stepper motor driver, which supports micro-step
drive with 1/8-step resolution, and two channels of a brushed motor driver, which supports forward, reverse, brake, and
standby of a motor. It is ideally suited for driving brushed DC motors and stepper motors used in office equipment and
amusement applications.
Function
• Single-channel PWM current control stepper motor driver (selectable with DC motor driver channel 2) incorporated.
• BiCDMOS process IC
• Low on resistance (upper side : 0.3Ω ; lower side : 0.25Ω ; total of upper and lower : 0.55Ω ; Ta = 25°C, IO = 2A)
• Micro-step mode can be set to Full-step, Half-step, Quarter-step , or 1/8-step
• Excitation step proceeds only by step signal input
• Motor current selectable in four steps
• Output short-circuit protection circuit (selectable from latch-type or auto-reset-type) incorporated
• Unusual condition warning output pins
• No control power supply required
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
Supply voltage
VM max
VM , VM1 , VM2
36
V
Output peak current
Output current
Logic input voltage
IO peak
IO max
VIN
tw ≤ 10ms , duty 20% , Per 1ch
Per 1ch
ATT1 , ATT2 , EMM , RST/BLK , STEP/DC22
FR/DC21 , MD2/DC12 , MD1/DC11 , DM , OE ,
ST
2.5
A
2
A
-0.3 to +6
V
MONI/EMO input voltage
Vmoni/Vemo
-0.3 to +6
V
Allowable power dissipation
Pd max
*
3.25
W
Operating temperature
Topr
-20 to +85
°C
Storage temperature
Tstg
-55 to +150
°C
* Specified circuit board : 90.0mm×90.0mm×1.6mm, glass epoxy 2-layer board, with backside mounting.
Caution 1) Absolute maximum ratings represent the value which cannot be exceeded for any length of time.
Caution 2) Even when the device is used within the range of absolute maximum ratings, as a result of continuous usage under high temperature, high current,
high voltage, or drastic temperature change, the reliability of the IC may be degraded. Please contact us for the further details.
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating
Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.
Allowable Operating Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Supply voltage range
VM
VM , VM1 , VM2
Logic input voltage
VREF input voltage range
VIN
VREF
ATT1 , ATT2 , EMM , RST/BLK , STEP/DC22 ,
FR/DC21 , MD2/DC12 , MD1/DC11 , DM , OE , ST
Ratings
Unit
9 to 32
V
0 to 5.5
V
0 to 3
V
ORDERING INFORMATION
See detailed ordering and shipping information on page 26 of this data sheet.
Semiconductor Components Industries, LLC, 2013
June, 2013
61213NK 20121220-S00002 / D0909 SY / 82609 MS PC 20090513-S00001 No.A1483-1/26