LB1638.PDF

Ordering number: EN3515A

Monolithic Digital IC

LB1638, 1638M

Low-Saturation Bidirectional Motor Drive

for Low-Voltage Applications

Overview

Package Dimensions

unit : mm

The LB1638, 1638M are low-saturation bidirectional motor

driver ICs for use in low-voltage applications. At an I O of

500 mA, they have a low saturation output of V O (sat) =

0.75 V. They are especially suited for use in compact motor of

portable equipment.

3098B-DIP10S

[LB1638]

. Low saturation voltage (upper transistor + lower transistor

residual voltage; at I O = 500 mA, V O (sat) = 0.75 V typ.)

. Low current drain at standby mode (I CCO = 0.1 µA typ. or

less)

. Separate logic power supply and motor power supply

. Brake function

. Built-in spark killer diodes

. Compact package (MFP-10S) suited for surface mounting.

SANYO : DIP10S

unit : mm

3086A-MFP10S

[LB1638M]

SANYO : MFP10S

SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN

73096HA(II)/7190TA(GTPS) No.3515-1/4

Features

. Low voltage operation (2.5 V min.)

LB1638, 1638M

Specifications

Absolute Maximum Ratings atTa=25 ° C

Parameter

Symbol

Conditions

Ratings

Unit

Maximum supply voltage

V CC max

–0.3 to +10.5 V

V S max

–0.3 to +10.5 V

Output applied voltage

V OUT

–0.3 to V S +VF V

Input applied voltage

V IN

–0.3 to +10.0 V

Ground pin flow-out current

I GND

1.0 A

LB1638

1.0 W

Allowable power dissipation

Pd max

LB1638M: Independent IC

440 mW

LB1638M: *With board

550 mW

Operating temperature

Topr

–20 to +75 ° C

Storage temperature

Tstg

–40 to +125 ° C

* Specified board (30 ´ 30 ´ 1.5 mm 3 glass epoxy)

Allowable Operating Ranges atTa=25 ° C

Parameter

Symbol

Conditions

Ratings

Unit

Supply voltage range

V CC

2.5 to 9.0 V

V S

2.2 to 9.0 V

Input high-level voltage

V IH

2.0 to 9.0 V

Input low-level voltage

V IL

–0.3 to +0.7 V

Electrical Characteristics atTa=25 ° C, V CC =V S =3V

Parameter

Symbol

Conditions

min typ max Unit

I CC 0 IN 1, 2

I CC +I S

10 µA

Current drain

I CC 1 IN 1=3V,V IN 2=0V

I CC +I S

20 mA

I CC 2 IN 1,2=3V

I CC +I S

40 mA

Output saturation voltage

(upper + lower)

V OUT 1I OUT = 200 mA

0.25 0.5 V

V OUT 2I OUT = 500 mA

0.70 1.3 V

Output pin voltage difference

I O = 200 mA

0.1 V

Output sustain voltage

V O (sus) I OUT = 500 mA

Input current

I IN V IN =7V,V CC = 7 V

0.5 mA

[Spark killer diode]

Reverse current

I S (leak) V CC ,V S =7V

10 µA

Forward voltage

V SF I OUT = 200 mA

1.7 V

Pin Assignment

Top view

Note: both ground pins must be grounded.

No.3515-2/4

LB1638, 1638M

Truth Table

IN 1

IN 2 OUT 1 OUT 2

Mode

Forward

Reverse

Brake

OFF

Standby

Sample Application Circuit

Note: When using the same power

supply for V S and V CC , short the

V CC and V S pins to each other or

insert a capacitor in the V CC line.

Brake

Forward / Reverse

Output current, I O −A

Power supply voltage, V S −V

No.3515-3/4

LB1638, 1638M

Brake

Forward / Reverse

Input voltage, V IN −V

Supply voltage, V CC −V

Glass epoxy resin

Independent IC

Ambient temperature, Ta − ° C

No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace equipment,

nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of which may directly or

indirectly cause injury, death or property loss.

Anyone purchasing any products described or contained herein for an above-mentioned use shall:

1 Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors

and all their officers and employees, jointly and severally, against any and all claims and litigation and all damages, cost and

expenses associated with such use:

2 Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on SANYO

ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees jointly or severally.

Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume

production. SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use

or any infringements of intellectual property rights or other rights of third parties.

This catalog provides information as of July, 1996. Specifications and information herein are subject to change without notice.

No.3515-4/4

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