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
http://onsemi.com
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.
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.
Semiconductor Components Industries, LLC, 2013
June, 2013
41112 SY 20120131-S00006 No.A2019-1/20