LV8727 Datasheet, PDF (1/23 Pages) Sanyo Semicon Device – PWM Current Control Stepping Motor Driver

Ordering number : ENA1998
LV8727
Bi-CMOS LSI
PWM Current Control
Stepping Motor Driver
Overview
The LV8727 is a PWM current-controlled micro step bipolar stepping motor driver. This driver can do eight ways of micro
step resolution of Half, 1/8, 1/16, 1/32, 1/64, 1/128, 1/10, 1/20 Step, and can drive simply by the step input.
Features
• Single-channel PWM current control stepping motor driver.
• Output on-resistance (upper side : 0.25Ω ; lower side : 0.15Ω ; total of upper and lower : 0.4Ω ; Ta = 25°C, IO = 4.0A)
• Half, 1/8, 1/16, 1/32, 1/64, 1/128, 1/10, 1/20 Step are selectable.
• Advance the excitation step with the only step signal input.
• BiCDMOS process IC.
• Available forward reverse control.
• IO max=4.0A
• Input pull down resistance
• Thermal shutdown circuit.
• With reset pin and enable pin.
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
Supply voltage
Output current
Output peak current
Logic input voltage
VREF input voltage
VM max
IO max
IO peak
VIN max
VREF max
tw≤10ms, duty 20%
50
V
4
A
4.6
A
6
V
6
V
MO / DOWN pin input voltage
Allowable power dissipation
VMO /VDOWN max
Pd max
Indipendent IC
6
V
2.45
W
Operating temperature
Topr
-30 to +85
°C
Storage temperature
Tstg
-55 to +150
°C
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.
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
"standard application", intended for the use as general electronics equipment. The products mentioned herein
shall not be intended for use for any "special application" (medical equipment whose purpose is to sustain life,
aerospace instrument, nuclear control device, burning appliances, transportation machine, traffic signal system,
safety equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives
in case of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any
guarantee thereof. If you should intend to use our products for new introduction or other application different
from current conditions on the usage of automotive device, communication device, office equipment, industrial
equipment etc. , please consult with us about usage condition (temperature, operation time etc.) prior to the
intended use. If there is no consultation or inquiry before the intended use, our customer shall be solely
responsible for the use.
Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate
the performance, characteristics, and functions of the described products in the independent state, and are not
guarantees of the performance, characteristics, and functions of the described products as mounted in the
customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent
device, the customer should always evaluate and test devices mounted in the customer's products or
equipment.
N1611 SY 20111019-S00003 No.A1998-1/23