LV8772 Datasheet, PDF (1/17 Pages) Sanyo Semicon Device – PWM Constant-Current Control Stepping Motor Driver

Ordering number : ENA1975
LV8772
Bi-CMOS LSI
PWM Constant-Current Control
Stepping Motor Driver
Overview
The LV8772 is a stepping motor driver, which is capable of micro-step drive and supports 4W 1-2 phase excitation. It is
stepping motors used in office equipment and amusement applications.
Features
• Low on resistance (upper side : 0.3Ω ; lower side : 0.25Ω ; total of upper and lower : 0.55Ω ; Ta = 25°C, IO = 2.5A)
• Excitation mode can be set to 2-phase, 1-2 phase, W1-2 phase , or 4W1-2 phase
• BiCDMOS process IC
• Excitation step proceeds only by step signal input
• Motor current selectable in four steps
• Output short-circuit protection circuit incorporated
• Unusual condition warning output pins
• No control power supply required
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Supply voltage
Output peak current
Output current
Logic input voltage
MONI/EMO input voltage
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VM max
IO peak
IO max
VIN
Vmoni/Vemo
Pd max1
Pd max2
Topr
Tstg
Conditions
tw ≤ 10ms, duty 20%
1 unit
*
Ratings
Unit
36
V
3.0
A
2.5
A
-0.3 to +6
V
-0.3 to +6
V
3.0
W
5.4
W
-20 to +85
°C
-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.
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.
90711 SY 20110902-S00001 No.A1975-1/17