LV8729V Datasheet, PDF (1/21 Pages) Sanyo Semicon Device – PWM Constant-Current Control Stepping Motor Driver

Ordering number : ENA1702D
LV8729V
Bi-CMOS IC
PWM Constant-Current Control
Stepper Motor Driver
http://onsemi.com
Overview
The LV8729V is a PWM current-controlled microstep bipolar stepper motor driver.
This driver can perform eight times of excitation of the second phase to 32W1-second phase and can drive simply by
the CLK input.
Function
• Single-channel PWM current control stepper motor driver.
• BiCDMOS process IC.
• Output on-resistance (upper side : 0.35Ω ; lower side : 0.3Ω ; total of upper and lower : 0.65Ω ; Ta = 25°C, IO = 1.8A)
• 2-phase, 1-2 phase, W1-2 phase, 2W1-2 phase, 4W1-2 phase,8W1-2 phase, 16W1-2 phase, 32W1-2 phase excitation
are selectable.
• Advance the excitation step with the only step signal input.
• Available forward reverse control.
• Over current protection circuit.
• Thermal shutdown circuit.
• Input pull down resistance
• With reset pin and enable pin.
SSOP44K (275mil)
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
VM max
VM , VM1 , VM2
36
V
Maximum output current
Maximum logic input voltage
Maximum VREF input voltage
IO max
VIN max
VREF max
Per 1ch
ST , MD1 , MD2 , MD3 , OE , RST , FR ,
1.8
A
6
V
6
V
Maximum MO input voltage
VMO max
Maximum DOWN input voltage VDOWN max
Allowable power dissipation
Pd max
*
6
V
6
V
3.85
W
Operating temperature
Topr
-30 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 those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed,
damage may occur and reliability may be affected.
ORDERING INFORMATION
See detailed ordering and shipping information on page 21 of this data sheet.
Semiconductor Components Industries, LLC, 2014
June, 2014
619114NK/42413NK 20121220-S00010 No.A1702-1/21