Overview

The LB1862M is a single-phase full-wave driver provided

in a miniature package that is optimal for driving

miniature fans such as CPU cooling fans. It provides

motor drive with low switching noise and high efficiency.

Functions

• Supports both 5- and 12-V power supplies.

• Allows the use of reverse connection prevention diodes

by including a regeneration circuit on chip.

• On-chip Hall amplifier with hysteresis characteristics

(Supports commutator-free cores.)

• Lock protection and automatic recovery circuits

• Lock detection pin

(Latch type – Low: drive, High: stopped)

• Supports low current drain in standby mode by

providing a Hall bias pin and a start/stop pin.

• Thermal shutdown circuit

Package Dimensions

unit: mm

3086A-MFP10S

Monolithic Digital IC

Ordering number : EN5657

73097HA(OT) No. 5657-1/6

SANYO: MFP10S

SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters

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

Single-Phase Full-Wave Driver for Fan Motors

LB1862M

Parameter

Symbol

Conditions

Ratings

Unit

Supply voltage

17

V

Output current

0.5

A

Output voltage

15

V

RD output voltage

15

V

RD output current

5mA

HB output current

10

mA

ST input voltage

15

V

Allowable power dissipation

Pd max

When mounted on the specified board *

850

mW

Operating temperature

Topr

–20 to +75

°C

Storage temperature

Tstg

–55 to +150

°C

Specifications

Absolute Maximum Ratings at Ta = 25°C

Note: * Specified board: 114.3

× 76.2 × 1.5 mm epoxy glass laminate board

Parameter

Symbol

Conditions

Ratings

Unit

Supply voltage

3.8 to 16.8

V

ST input high-level voltage

3 to 14

V

ST input low-level voltage

–0.3 to +0.4

V

Hall input

V

common-mode input voltage range

Allowable Operating Ranges at Ta = 25°C

[LB1862M]