SANYO LB1832V Datasheet

Ordering number : EN4179A

41596HA (OT) No. 4179-1/7

Overview

The LB1832V is a bidirectional driver IC that includes an
on-chip low-voltage low-saturation 1.5-channel bridge and
is provided in a miniature package. It is therefore optimal
for cameras that use 3 V lithium batteries. This IC allows
direct drive from the control microprocessor and supports
control of standby, forward, reverse, and braking
operations for two motors, i.e. the film take-up and lens
drive motors, from three inputs.

Features

• Supports low-voltage drive.
— When the same power supply is used for VCCand

VS: VCC= VS= 1.6 V min.

— When different power supplies are used for VCCand

VS: VS= 1.0 V min, VCC= 2.5 V min.

• Low saturation voltage (Upper side transistor plus lower
side transistor remaining voltage: 0.6 V (typ) at 1 A)

• Zero current drain in standby mode

• 1.5-channel bidirectional driver that can be directly
driven from the control microprocessor

• Separate logic and motor power supply connections

• Brake function

• Built-in spark killer diode

• Miniature package (SSOP-24)

Package Dimensions

unit: mm

3175A-SSOP24

SANYO: SSOP24

[LB1832V]

LB1832V

SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-0005 JAPAN

Low-Saturation 1.5-Channel 3 V Drive

Bidirectional Driver

Monolithic Digital IC

Specifications

Absolute Maximum Ratings at Ta = 25°C

Allowable Operating Ranges at Ta = 25°C

Electrical Characteristics at Ta = 25°C, VCC= VS= 3 V

No. 4179-2/7

LB1832V

Parameter Symbol Conditions Ratings Unit

Maximum supply voltage

V

CC

max –0.3 to +8.0 V

V

S

max –0.3 to +8.0 V

Output applied voltage V

OUT

–0.3 to VS+ V

SF

V

Input applied voltage V

IN

–0.3 to +0.8 V

GND pin current I

GND

2.0 A

Pd max1 Independent IC 550 mW

Allowable power dissipation

Pd max2

Mounted on the specified printed circuit board

1000 mW

(40

× 30 × 1.5 mm3glass epoxy)
Operating temperature Topr –20 to +75 °C
Storage temperature Tstg –40 to +150 °C

Parameter Symbol Conditions Ratings Unit

V

E

VCC= VS; Using the same power supply 1.6 to 7.0 V

Supply voltage V

CC

Using separate power supplies for VCCand V

S

2.5 to 7.0 V

V

S

1.0 to 7.0 V

Input high-level voltage V

IH

1.6 to 7.0 V

Input low-level voltage V

IL

–0.3 to +0.4 V

Parameter Symbol Conditions min typ max Unit

I

CC

0 Standby: ICC+ I

S

0.1 3 µA

Current drain

I

CC

1 I

CC

3.5 5 mA

I

S

1 Forward/reverse: I

S

65 85 mA

I

S

2 Brake: I

S

60 80 mA

Output saturation voltage

V

O

(sat)1 I

OUT

= 500 mA (VCC= VS= 2 V) 0.3 0.4 V

(upper + lower) V

O

(sat)2 I

OUT

= 1 A (VCC= VS= 2.2 V) 0.6 0.8 V

Variation in output applied voltage I

OUT

= 500 mA –20 0 +20 %

Sustainable output voltage V

O (SUS)IOUT

= 1 A 9 V

Input current I

IN

VIN= 5 V, VCC= 7 V 100 µA
[Spark killer diode]
Reverse current I

S

(leak) VCC, VS= 7 V 10 µA

Forward voltage V

SF

I

OUT

= 1 A 1.7 V

Pin Assignment

Note: 1. VS(motor power supply pins)

Connect either pins 1 and 2 or pins 11 and 12. The wiring resistance falls if all four are connected.

2. P-GND (motor power supply ground pins)
Connect all four of these pins

3. S-GND (Control power supply ground pin)
Connect to the microprocessor ground.

Block Diagram

Note: The two P-GND pins must be connected to a ground as close as possible to the IC.

Truth Table

Note: Blanks are off.

No. 4179-3/7

LB1832V

Input Output

Mode

IN0 IN1 IN2 OUT1 OUT21 OUT3

L L L

Standby

H L L
L H L H L Forward
L L H L H ch1 Reverse
L H H L L Brake
H H L L H Forward
H L H H L ch2 Reverse
H H H L L Brake