SANYO LB1962M Datasheet

Ordering number : ENN5657A

LB1862M, LB1962M

Fan Motor Single-Phase Full-Wave Drivers

Overview

Single-phase full-wave drive design and a compact package
make these ICs optimal for small fans (especially CPU
cooling fans). Low switching noise and effective motor
drive are further advantages. The LB1862M features a
lockup detection output (RD) and the LB1962M features a
rotation detection output (FG).

Features

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

• Built-in regenerative circuit allows use of reverse­connection 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 (LB1862M)

• Rotation detection output (FG) (LB1962M)

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

• Built-in thermal protection circuit

LB1862M, 1962M

Package Dimensions

unit: mm

3086A-MFP10S

[LB1862M/LB1962M]

10

1

5.1

6

5

0.55

1.00.35

Monolithic Digital IC

0.625

4.4

1.8max

1.5

0.1

5.15

0.15

SANYO : MFP10S

6.4

Specifications

Absolute Maximum Ratings at Ta = 25˚C

Parameter Symbol Conditions Ratings Unit
Maximum supply voltage VCC max 17 V
Maximum output current I
Maximum output withstand voltage V

RD/FG maximum output VR max (LB1862M) 15 V
withstand voltage VF max (LB1962M) 17 V
RD/FG maximum output current IR max 5mA

HB maximum output current IB max 10 mA
ST maximum input voltage VST max 15 V
Allowable power dissipation Pd max With specified substrate* 850 mW
Operating temperature Topr (LB1862M) –20 to +75 °C

Storage temperature Tstg –55 to +150 °C
*Specified substrate: 114.3 × 76.2 × 1.5 mm3 glass epoxy

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.

max 0.5 A

OUT

max (LB1862M) 15 V

OUT

IF max 5mA

(LB1962M) 15 V

(LB1962M) –30 to +85 °C

SANYO Electric Co.,Ltd. Semiconductor Company

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

O2599RM(KI)

No. 5657-1/7

LB1862M, LB1962M

Allowable Operating Ranges at Ta = 25˚C

Parameter Symbol Conditions Ratings Unit
Power supply voltage V
ST input High level voltage ST
ST input Low level voltage ST
Hall input common mode voltage V
range

CC

H
L

ICM

Electrical Characteristics at Ta = 25˚C, VCC = 5V

Parameter Symbol Conditions
Current drain I

Lockup detection ICT1 1.9 2.8 3.7 µA
capacitor charge current
Capacitor discharge current ICT2 0.32 0.46 0.60 µA
Capacitor charge/discharge current ratio
CT charge voltage VCT1 2.55 2.75 2.95 V
CT discharge voltage VCT2 1.6 1.8 2.0 V
Output Low level voltage V
Output High level voltage V
Hall input sensitivity V

RD/FG output pin Low voltage V
RD/FG output pin leakage current I
HB output Low voltage V
ST pin input current I

R

RD, VFGIRD, IFG

RDL, IFGLVRD, VFG

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

CC

In lockup protection mode (CT = [H], ST = [L])
In standby mode (ST = [H]) 110 150 µA

RCD = ICT1/ICT2 5.0 6.0 7.0

CT

IO = 200 mA 0.2 0.3 V

OL
OHIO
HN

HBLIHB
ST

= 200 mA 3.9 4.1 V
Zero peak value 7 15 mV
(Including offset and hysteresis)

= 5 mA 0.1 0.3 V

= 15V 30 µA

= 5 mA 1.0 1.3 V

VST = 5V 75 100 µA

min typ max

3.8 to 16.8 V
3 to 14 V

–0.3 to +0.4 V

0.2 to VCC–1.5 V

Ratings

2.2 3.1 mA

Unit

Truth Table

ST IN

H – – – off off off off off Standby

LLH LH H

–

HL

– – H off of f off – L Lockup protection activated

+

IN

CT OUT1 OUT2 RD FG HB Mode

L

HL

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

L

L

L Rotating

Pin Assignment

IN

IN

CT

–

1

+

2

3

LB1862M

10

9

8

RD(FG)

HB

ST

LB1962M

OUT1

GND

4

5

7

6

V

CC

OUT2

Top view

A07357

No. 5657-2/7

Block Diagram

LB1862M, LB1962M

0.47 to 1 µF

HALL

CT

V

CC

+

IN

–

IN

HB

Discharge
pulse

Hysteresis amplifier

Thermal protection

circuit

Control

circuit

Charge/discharge

circuit

RD

(LB1862M)

FG

(LB1962M)

Delay circuit

OUT2

M

Delay circuit

OUT1

START/STOP

ST GND

A07359

Sample Application Circuit

C2

C1 = 0.47 to 1 µF

V

CC

H

–

IN

RD

+

IN

(FG)

OUT1

HB

OUT2

ST

CT

GND

A07358

No. 5657-3/7