LB1848MC-AH ON Semiconductor, LB1848MC-AH Datasheet

LB1848MC-AH

Manufacturer Part Number

LB1848MC-AH

Description

lb1848mc series 7.5 v .8 a .82 w two phase...

Manufacturer

ON Semiconductor

Datasheet

1.LB1848MC-AH.pdf (6 pages)

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Company:

H&T Electronics

Part Number:

LB1848MC-AH

Quantity:

10 000

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Ordering number : ENA2036A

LB1848MC

Overview

Functions

Specifications

Absolute Maximum Ratings at Ta = 25°C

Maximum supply voltage

Output voltage

Input voltage

Ground pin outflow current

Allowable power dissipation

Operating temperature

Storage temperature

The LB1848MC is 2-channel low-voltage, low saturation voltage type bidirectional motor driver IC that is optimal for

use as 2-phase stepping motor drivers in printers, cameras and other portable equipment. The output circuits are of the

bipolar type, with PNP transistors in the upper side and NPN transistors in the lower side, and they achieve low

saturation output and low power characteristics despite being provided in a miniature package.

The LB1848MC products can directly control a motor from signals from a microcontroller. The LB1848MC is optimal

for 2-phase excitation drive for 2-phase stepping motors using 3-input logic (ENA, IN1 and IN2).

Another point is that these IC include built-in thermal shutdown circuits so that IC scorching or burning is prevented in

advance even if the IC output is shorted.

• Optimal for 2-phase excitation drive for 2-phase stepping motors

• Low saturation voltage. V O (sat) = 0.55V typical at I O = 400mA

• Through-current prevention circuit

• No limitations on the magnitude relationship between the power supply voltage (V CC ) and the input voltage (V IN )

• “Soft off” function that reduces power supply line noise when switching from drive to standby modes. (Requires the

use of one external capacitor.)

Parameter

"standard application", intended for the use as general electronics equipment. The products mentioned herein

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

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

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

V CC max

V OUT

V IN

I GND

Pd max

Topr

Tstg

Symbol

Per channel

When mounted*

Monolithic Digital IC

Low-Voltage/Low Saturation Voltage Type

Bidirectional Motor Driver

Conditions

41812 SY/32112 SY 20120229-S00010 No.A2036-1/6

• Standby current: Zero

• Thermal shutdown circuit

Ratings

s products or

V CC + V SF

-0.3 to +8.0

-40 to +150

Continued on next page.

-20 to +75

800

820

Unit

°C

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LB1848MC-AH Summary of contents

Page 1

... The LB1848MC products can directly control a motor from signals from a microcontroller. The LB1848MC is optimal for 2-phase excitation drive for 2-phase stepping motors using 3-input logic (ENA, IN1 and IN2). ...

Page 2

... Package Dimensions unit : mm (typ) 3426A 4 1.0 0.41 0.21 SANYO : SOIC10 LB1848MC Conditions Conditions ENA = 0V ENA = 3V ENA = 3V 0V 7.5V, I OUT = 200mA ENA = 3V 0V 7.5V, I OUT = 400mA ENA = 5V I OUT = 400mA ...

Page 3

... Note: *1 "-" indicates a "don‛t care" input. LB1848MC V CC OUT4 1 10 IN2 OUT3 2 9 LB1848MC ENA OUT1 3 8 SOF OUT2 4 7 IN1 GND 5 6 Top view V CC SOF* 102 to 103 OUT1 OUT2 OUT3 OUT4 OFF ...

Page 4

... The “soft off” function provided by this IC operates when a capacitor (0.001 to 0.01µF) is connected between the SOF pin and ground. (Leave the SOF pin open to disable the soft off function.) The waveforms for each pin are shown below. ENA IN1 IN2 OUT1 OUT2 OUT3 OUT4 V CC SOF LB1848MC No kickback noise No.A2036-4/6 ...

Page 5

... Power-supply voltage OUT -- I OUT 1 =4.0V 0.8 0.6 0.4 0 0.1 0.2 0.3 0.4 Input current, I OUT - A LB1848MC Drive circuit R2 60kW ENA SOF External capacitor GND [SOF pin internal equivalent circuit diagram] 280 240 200 160 120 ...

Page 6

... SANYO Semiconductor Co.,Ltd. shall not be liable for any claim or suits with regard to a third party's intellctual property rights which has resulted from the use of the technical information and products mentioned above. This catalog provides information as of April, 2012. Specifications and information herein are subject to change without notice. LB1848MC PS No.A2036-6/6 ...

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