Sanyo LB1862 Specifications

LB1862

No. 6208-1/7

Overview

Single-phase full-wave drive design and a compact package

make this IC optimal for small fans (especially CPU

cooling fans). Low switching noise and effective motor

drive are further advantages.

Features

• Support for 5V/12V dual power supply voltage

• Built-in regenerative circuit allows use of reverse-

connection protection diode

• Built-in Hall amplifier with hysteresis (supports core

without auxiliary electrode)

• Built-in lockup protection and automatic recovery circuits

• Latch-type lockup detection output (RD) is Low during

rotation and High during stop

• Hall bias pin and start/stop pin allow reduced current drain

in standby mode

• Built-in thermal protection circuit

LB1862

Package Dimensions

unit: mm

3098B-DIP10S

O2599RM(KI)

Ordering number : ENN6208A

Monolithic Digital IC

Fan Motor Single-Phase Full-Wave Driver

[LB1862]

SANYO : DIP10S

Specifications

Absolute Maximum Ratings at Ta = 25˚C

Parameter Symbol Conditions Ratings Unit

Maximum supply voltage V

CC

max 17 V

Maximum output current I

OUT

max 0.8 A

Maximum output withstand voltage V

OUT

max 17 V

RD maximum output withstand

V

R

max

17 V

voltage

RD maximum output current I

R

max 5mA

HB maximum output current I

B

max 10 mA

ST maximum input voltage V

ST

max 15 V

Allowable power dissipation Pd max 1.0 W

Operating temperature Topr –30 to +85 °C

Storage temperature Tstg –55 to +150 °C

1

5

10

6

3.0

0.25

3.2

3.9max

0.51min

1.14 1.78

0.95

0.48

9.4

7.62

6.4

Any and all SANYO products described or contained herein do not have specifications that can handle

applications that require extremely high levels of reliability, such as life-support systems, aircraft's

control systems, or other applications whose failure can be reasonably expected to result in serious

physical and/or material damage. Consult with your SANYO representative nearest you before using

any SANYO products described or contained herein in such applications.

SANYO 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 SANYO products described or contained

herein.

SANYO Electric Co.,Ltd. Semiconductor Company

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN

LB1862

No. 6208-2/7

Allowable Operating Ranges at Ta = 25˚C

Parameter Symbol Conditions Ratings Unit

Power supply voltage V

CC

3.8 to 16.8 V

ST input High level voltage ST

H

3 to 14 V

ST input Low level voltage ST

L

–0.3 to +0.4 V

Hall input common mode input

V

ICM

0.2 to V

CC

–1.5 V

voltage range

Electrical Characteristics at Ta = 25˚C, V

CC

= 5V

Parameter Symbol Conditions

Ratings

Unit

min typ max

Circuit current I

CC

In drive mode (CT = [L], ST = [L]) 6.5 9.1 mA

In lockup protection mode (CT = [H], ST = [L])

2.2 3.1 mA

In standby mode (ST = [H]) 110 150 µA

Lockup detection I

CT

1 1.9 2.8 3.7 µA

capacitor charge current

Capacitor discharge current I

CT

2 0.32 0.46 0.60 µA

Capacitor charge/discharge current ratio

R

CT

R

CT

= I

CT

1/I

CT

2 5.0 6.0 7.0

CT charge voltage V

CT

1 2.55 2.75 2.95 V

CT discharge voltage V

CT

2 1.6 1.8 2.0 V

Output Low level voltage V

OL

I

O

= 200 mA 0.2 0.3 V

Output High level voltage V

OH

I

O

= 200 mA 3.9 4.1 V

Hall input sensitivity V

HN

Zero peak value 7 15 mV

(Including offset and hysteresis)

RD output pin Low voltage V

RD

I

RD

= 5 mA 0.1 0.3 V

RD output pin leakage current I

RDL

V

RD

= 15V 30 µA

HB output Low voltage V

HBL

I

HB

= 5 mA 1.0 1.3 V

ST pin input current I

ST

V

ST

= 5V 75 100 µA

0.2

0

0.4

0.6

0.8

1.0

1.2

–30 0 30 60 90 120

Allowable power dissipation, Pd max – W

Pd max – Ta

Ambient temperature, Ta – °C

0.52

LB1862

No. 6208-3/7

Pin Assignment

Truth Table

ST IN

–

IN

+

CT OUT1 OUT2 RD HB Mode

H – – – off off off off Standby

HL

L

HL

L L Rotating

LLH LH

H off off off L Lockup protection activated

Latch-type RD output is Low during rotation and High during stop.

IN

–

RD

HB

ST

V

CC

OUT2

Top view

IN

+

CT

OUT1

GND

A12476

1

2

3

4

5

10

9

8

7

6

LB1862