LV8740V_13 Datasheet, PDF (1/25 Pages) ON Semiconductor – PWM Cuttent Control Stepper Motor Driver

Ordering number : ENA1864A
LV8740V
Monolithic Linear IC
PWM Current Control Stepper
Motor Driver
http://onsemi.com
Overview
The LV8740V is a 2-channel H-bridge driver IC that can switch a stepper motor driver, which is
capable of micro-step drive and supports Quarter-step excitation, and two channels of a brushed
DC 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.
• On resistance (upper side : 0.3Ω ; lower side : 0.2Ω ; total of upper and lower : 0.5Ω ; Ta = 25°C, IO = 2.5A)
• Excitation mode can be set to Full-step, Half-step full torque, Half-step , or Quarter-step
• Excitation step proceeds only by step signal input
• Motor current selectable in four steps
• BiCDMOS process IC
• Output short-circuit protection circuit (selectable from latch-type or auto reset-type) incorporated
• Unusual condition warning output pins
• No control supply required
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
Supply voltage 1
Output peak current
Output current
Logic input voltage
MONI/EMO input voltage
Allowable power dissipation
VM max
IO peak
IO max
VIN
VMONI/VEMO
Pd max
VM , VM1 , VM2
tw ≤ 10ms, duty 20%, Each 1ch
Each 1ch
ST , OE , DM , MD1/DC11 , MD2/DC12 ,
FR/DC21 , STP/DC22 , RST , EMM , ATT1 , ATT2
*
38
V
3.0
A
2.5
A
-0.3 to +6.0
V
-0.3 to +6.0
V
3.45
W
Operating temperature
Topr
-30 to +85
°C
Storage temperature
Tstg
-55 to +150
°C
* Specified circuit board : 90×90×1.6mm³ : 2-Layer glass epoxy printed circuit board with back 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.
ORDERING INFORMATION
See detailed ordering and shipping information on page 25 of this data sheet.
Semiconductor Components Industries, LLC, 2013
April, 2013
42413NK 20130225-S00006 No.A1864-1/25