LV8711T_11 SANYO [Sanyo Semicon Device], LV8711T_11 Datasheet

LV8711T_11

Manufacturer Part Number

LV8711T_11

Description

PWM Constant-Current Control Stepping Motor Driver

Manufacturer

SANYO [Sanyo Semicon Device]

Datasheet

1.LV8711T_11.pdf (12 pages)

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Ordering number : ENA1685

LV8711T

Overview

Features

Specifications

Absolute Maximum Ratings at Ta = 25°C

* Specified circuit board : 57.0mm×57.0mm×1.7mm, glass epoxy printed circuit board.

Motor supply voltage

Logic supply voltage

Logic input voltage

Output peak current

Output continuous current

Allowable power dissipation

Operating temperature

Storage temperature

The LV8711T is a PWM constant-current control stepping motor driver.

• Two circuits of PWM constant-current control H-bridge drivers incorporated

• Control of the stepping motor to 1-2 phase excitations possible

• Reference voltage output: 1.0V

• Short circuit protection circuit incorporated

• Abnormal condition warning output pin incorporated

• Upper and lower regenerative diodes incorporated

•Thermal shutdown circuit incorporated

Parameter

"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,

Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to

communication device, office equipment, industrial equipment etc.). 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 applications outside the standard applications of our

customer who is considering such use and/or outside the scope of our intended standard applications, please

consult with us 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

device, the customer should always evaluate and test devices mounted in the customer

equipment.

s products or equipment. To verify symptoms and states that cannot be evaluated in an independent

VM max

V CC max

V IN

I O peak

I O max

Pd max

Topr

Tstg

Symbol

Bi-CMOS LSI

PWM Constant-Current Control

Stepping Motor Driver

Per ch, tw ≤ 10ms, duty 20%

Per ch

Conditions

33110 SY 20100310-S00001 No.A1685-1/12

Ratings

s products or

-55 to +150

-20 to +85

1.45

800

1.0

Unit

°C

Related parts for LV8711T_11

LV8711T_11 Summary of contents

Page 1

Ordering number : ENA1685 LV8711T Overview The LV8711T is a PWM constant-current control stepping motor driver. Features • Two circuits of PWM constant-current control H-bridge drivers incorporated • Control of the stepping motor to 1-2 phase excitations possible • Reference ...

Page 2

Recommended Operating Ratings 25°C Parameter Symbol Motor supply voltage range VM Logic supply voltage range V CC Logic input voltage range V IN VREF input voltage range VREF Electrical Characteristics 25° 12V, ...

Page 3

Package Dimensions unit : mm (typ) 3260A 6 0.15 0.5 0.22 (0.5) SANYO : TSSOP24(225mil) Pin Assignment LV8711T 2.0 1.5 1.45 1.0 0.5 Specified circuit board : 57.0 × 57.0 × 1.7mm ...

Page 4

Block Diagram LV8711T stage preamplifier Output stage preamplifier Output stage preamplifier Output stage preamplifier Output No.A1685-4/12 ...

Page 5

Pin Functions Pin No. Pin Name Pin Function 8 ATT1 Energization current switching pin 1. 9 ATT2 Energization current switching pin 2 13 IN2B Channel 2 driver output control input pin. 14 IN2A Channel 2 driver output control input pin. ...

Page 6

Continued from preceding page. Pin No. Pin Name Pin Function 5 EMO Abnormal condition warning output pin. 6 VREF Channel 1 and 2 current setting reference voltage input pin. 7 REG1 Current setting reference voltage output pin. 10 CHOP Chopping ...

Page 7

Input pin function (1) Chip enable function Standby mode / operating mode of the IC are switched by setting the PS pin. In the standby-state, the IC enters a power saving mode and all logic is reset. In the standby-state, ...

Page 8

Constant-current control time chart (chopping operate) In each current mode, the operation sequence is as described below: · At first of chopping cycle, the IC goes to CHARGE mode. (The Blanking section in which the CHARGE mode is forced ...

Page 9

Typical current waveform in each excitation mode 6-1) STM Drive mode Two-phase excitation (CW mode) IN1A IN1B IN2A IN2B (%) 100 I OUT 1 0 -100 (%) 100 I OUT 2 0 -100 1-2 phase excitation (CW mode) IN1A ...

Page 10

DCM Drive mode IN1A(2A) IN1B(2B) (%) 100 CW l OUT 1(2) 0 -100 (%) (7) Output short-circuit protection To protect IC from damage due to short-circuit of the output caused by lightening or ground fault, the output short-circuit protection ...

Page 11

Application Circuit Example Logic input Abnomal condition sensing monitor pull-up resistor for Abnomal condition sensing monitor. The setting range is 10k‰ to 100k‰ The REG1 voltage (1V) can be used to set output current. It can connect ...

Page 12

SANYO Semiconductor Co.,Ltd. assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all ...

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