Sanyo LB1881V Specifications

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.

Monolithic Digital IC

Ordering number : ENN4456A

73099TH (OT)/43098HA (OT)/12194TS A8-9620 No. 4456-1/7

SANYO Electric Co.,Ltd. Semiconductor Company

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

Three-Phase Brushless Motor Driver IC

LB1881V

Overview

The LB1881V is a three-phase brushless motor driver IC
designed for use as a camcorder capstan or drum motor
driver, or as a digital audio tape player/recorder motor
driver.

Features

• 120° voltage linear system

• Appropriate for portable applications, since the
LB1881V reduces system power requirements by using
motor voltage control for speed control.

• Built-in torque ripple compensation circuit

• Small external capacitances due to the adoption of a soft
switching technique (chip capacitor).

• Built-in thermal shutdown circuit

• Built-in FG amplifier

Package Dimensions

unit: mm

3175A-SSOP24

112

13

7.6

8.0

0.5

5.6

0.1

1.6max

1.0

24

0.65

0.22

0.43

0.15

SANYO: SSOP24

[LB1881V]

Specifications

Absolute Maximum Ratings at Ta = 25°C

Parameter Symbol Conditions Ratings Unit

V

CC

1 max 7 V

Supply voltage V

CC

2 max 12 V

V

S

max VCC2V

Output applied voltage V

O

max VS+ 2 V

Input applied voltage V

I

max All input pins VCC1V

Output current I

O

max 1.0 A
Allowable power dissipation Pd max 0.5 W
Operating temperature Topr –20 to +75 °C
Storage temperature Tstg –55 to +150 °C

No. 4456-2/7

LB1881V

Electrical Characteristics at Ta = 25°C, VCC1 = 5 V, VCC2 = 7 V, VS= 3 V

Ratings

Parameter Symbol Conditions

min typ max

Unit

I

CC

1 VBR= 5 V 3.0 5.0 mA

Supply current I

CC

2 VBR= 5 V 6.5 10.0 mA

I

S

VBR= 5 V, RL= ∞ 5.0 mA

Output quiescent current

I

CCOQ

V

STBY

= 0 V 100 µA

I

SOQ

V

STBY

= 0 V, RL= ∞ 150 µA

Output saturation voltage V

O(sat)

I

OUT

= 0.6 A, sink + source 1.7 V

Output TRS withstand voltage V

O(sus)

I

OUT

= 20 mA*1 12 V

Output quiescent voltage V

OQ

VBR= 5 V 1.45 1.55 1.65 V

Hall amplifier input offset voltage V

HOFFSET

*1 –5 +5 mV

Hall amplifier common mode input

V

HCOM

1.4 2.8 V

voltage range
Hall I/O voltage gain GV

HO

Rangle = 8.2 kΩ 34.0 37.0 40.0 dB

Brake pin high level voltage V

BRH

2.0 V

Brake pin low level voltage V

BRL

0.8 V

Brake pin input current I

BRIN

120 µA

Brake pin leakage current I

BRLEAK

–30 µA

FRC pin high level voltage V

FRCH

2.8 V

FRC pin low level voltage V

FRCL

1.2 V

FRC pin input current I

FRCIN

100 µA

FRC pin leakage current I

FRCLEAK

–30 µA

Upper side residual voltage V

XH

I

OUT

= 100 mA, VCC2 = 6 V, VS= 2 V 0.285 0.455 V

Lower side residual voltage V

XL

I

OUT

= 100 mA, VCC2 = 6 V, VS= 2 V 0.350 0.440 V

Residual voltage inflection point V

S∆VX

I

OUT

= 100 mA, VCC2 = 6 V*1 0.9 V

Overlap level OL V

CC

2 = 6 V, VS= 3 V, RL= 100 Ω (Y) 60 70 80 %

Overlap vertical difference ∆OL V

CC

2 = 6 V, VS= 3 V, RL= 100 Ω (Y) –10 0 +10 %

Standby on voltage V

STBYL

*2 –0.2 +0.8 V

Standby off voltage V

STBYH

2 5 V

Standby pin bias current I

STBYIN

100 µA

Thermal protection circuit operating

T

TSD

*1 150 180 210 °C

temperature
Thermal protection circuit hysteresis ∆T

TSD

*1 15 °C

FG amplifier input offset voltage V

FG OFFSET

–8 +8 mV

Open loop voltage gain GV

FG

f = 10 kHz 43 dB

Source output saturation voltage V

FG OU

IO= –2 mA 3.7 V

Sink output saturation voltage V

FG OD

IO= 2 mA 1.3 V

Common mode signal exclusion ratio G

HR

*1 80 dB

FG amplifier common mode input

V

FG CH

0 3.5 V

voltage range
Phase margin φM *1 20 deg

Schmitt amplifier threshold voltage V

FGS SH

V

FGIN

+

= 2.5 V,

2.45 2.50 2.55 V

when V

FGOUT

2 goes from high to low

Schmitt amplifier hysteresis width V

FGS HIS

V

FGIN

+

= 2.5 V 20 40 60 mV

Note: 1. These are target settings, and are not measured. The overlap ratings are taken as test ratings without change.

2. When the standby pin is open the IC will be in the standby state.

Allowable Operating Ranges at Ta = 25°C

Parameter Symbol Conditions Ratings Unit

V

CC

1 VCC1 ≤ VCC2 4.0 to 6.0 V

Supply voltage V

CC

2 4 to 10 V

V

S

Up to VCC2 V

No. 4456-3/7

LB1881V

Pin Assignment

Block Diagram

Top view

Allowable power dissipation, Pd max – W

Ambient temperature, Ta – °C