SANYO LB1964T Datasheet

Ordering number : ENN6188A

LB1964T

Monolithic Digital IC

LB1964T

Fan Motor Single-Phase Full-Wave Driver

Overview

The LB1964T is a driver for single-phase bipolar drive fan
motors that features compact and low-profile MSOP–8
package. Low-saturation output and low-voltage operation
make it ideal for applications that require small size and
high efficiency, such as notebook computers and CPU
cooling fans.

Package Dimensions

unit: mm

3245-MSOP8

[LB1964T]

3.0

85

3.0

0.5

4.9

Features

• Single-phase full-wave drive

• Low-voltage operation (VCC = 2.0V min.)

• Low-saturation output (upper side + lower side saturation
voltage: Vosat (total) = 0.3V typ., Io = 100 mA)

• Ultraminiature package (3.0 × 4.9 × 0.93 mm3)

• FG output

• Built-in thermal protection circuit

14

0.65

(0.5)

0.25

1.1max

(0.85)

0.08

0.25

SANYO : MSOP8

Specifications

Absolute Maximum Ratings at Ta = 25˚C

Parameter Symbol Conditions Ratings Unit
Maximum supply voltage VCC max 9 V
Allowable power dissipation Pd max With specified substrate* 370 mW
OUT output current I
OUT output withstand voltage V
FG output withstand voltage VFG max 7 V
FG output current IFG max 5 mA
Operating temperature Topr –20 to +85 ˚C
Storage temperature Tstg –55 to +150 ˚C

* Specified substrate (20.0 × 10.0 × 0.8 mm

max 0.3 A

OUT

max 9 V

OUT

3

paper phenol)

Allowable Operating Ranges at Ta = 25˚C

Parameter Symbol Conditions Ratings Unit
Power supply voltage V
Hall input common mode input voltage
range

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.

CC

V

ICM

SANYO Electric Co.,Ltd. Semiconductor Company

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

2 to 8 V

0.2 to VCC–1 V

O2599RM(KI)

No. 6188-1/4

LB1964T

Electrical Characteristics at Ta = 25˚C, VCC = 3.3V, unless otherwise specified

Parameter Symbol Conditions
Current drain Icc 3 4.5 mA

OUT output Low saturation voltage V
OUT output High saturation voltage V
Hall bias voltage
Hall input sensitivity V
FG output Low voltage V
FG output leak current I
Thermal protection operating TTSD Assured design target* 150 180 200 ˚C
temperature

V

FGL

IO = 100 mA 0.2 0.3 V

OL

IO = 100 mA 0.2 0.3 V

OH

RH = 360Ω 1.17 1.27 1.37 V

HB

Zero peak value 1 7 mV

HN

IFG = 3 mA 0.2 0.3 V

FG

VFG = 7V 30 µA

* Assured design target: Target value, not measured individually

Truth Table

IN– IN+ OUT1 OUT2 FG Mode

H L H L L Rotating
LHLHOff

– – Off Off – In thermal protection

Ratings

min typ max

Unit

Pin Assignment

0.6

With specified substrate (20.0 × 10.0 × 0.8 mm3)
paper phenol

0.4

0.37

0.2

Allowable power dissipation, Pd max – W

0

–20 0 20 40 60 80 100

1

IN+

HB

2

Pd max – Ta

Ambient temperature, Ta – ˚C

8

FG

V

7

LB1964T

IN–

3

6

OUT2

0.19

CC

OUT1 GND

4

5

Top view

No. 6188-2/4