LV8747TA Datasheet, PDF (1/20 Pages) Sanyo Semicon Device – PWM Constant-Current Control Stepping Motor Driver and Switching Regulator Controller

Ordering number : ENA2019
LV8747TA
Bi-CMOS LSI
PWM Constant-Current Control Stepping Motor
Driver and Switching Regulator Controller
Overview
The LV8747TA is a PWM constant-current control stepping motor driver and switching regulator controller IC.
Features
• Two circuits of PWM constant-current control stepping motor driver incorporated
• Control of the stepping motor to W1-2 phase excitation possible
• Output-stage push-pull composition enabling high-speed operation
• Two circuits of switching regulator controller incorporated • Thermal shutdown circuit incorporated
• Timer latch type short-circuit protection circuit incorporated • Motor driver control power incorporated
• Output short-circuit protection circuit incorporated
• Chopping frequency selectable
• High-precision reference voltage circuit incorporated
• Upper and lower regenerative diodes incorporated
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
Supply voltage
VM max
38
V
Driver output peak current 1
Driver output continuous current 1
Driver output peak current 2
Driver output continuous current 2
Regulator output current
Allowable power dissipation 1
MDIO peak1
MDIO max1
MDIO peak2
MDIO max2
SWIO max
Pd max1
OUT1/OUT2 tw ≤ 10ms, duty 20%
OUT1/OUT2
OUT3/OUT4 tw ≤ 10ms, duty 20%
OUT3/OUT4
OUT5/OUT6 tw ≤ 1μs
Independent IC
1.75
A
1.5
A
0.8
A
0.5
A
500
mA
0.4
W
Allowable power dissipation 2
Pd max2
Our recommended four-layer substrate *1, *2
4.85
W
Operating temperature
Topr
-20 to +85
°C
Storage temperature
Tstg
-55 to +150
°C
*1 Specified circuit board : 100×100×1.6mm³ : 4-layer glass epoxy printed circuit board
*2 For mounting to the backside by soldering, see the precautions.
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.
41112 SY 20120131-S00006 No.A2019-1/20