LB1836M datasheet(2/5 Pages) SANYO

2 / 5 page

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

Parameter

Symbol

Conditions

min

typ

max

Unit

Supply current

ICC0VIN1, 2, 3,4=0V,ICC +IS

0.1

µA

ICC1VIN1=3V,VIN2, 3,4=0V,ICC +IS

ICC2VIN1,2=3V,VIN3,4=0V,ICC +IS

Output saturation voltage

(upper + lower)

VOUT1IOUT = 200 mA

0.2

0.28

VOUT2IOUT = 400 mA

0.4

0.6

VOUT3IOUT = 400 mA, parallel connection

0.25

0.35

VOUT4IOUT = 800 mA, parallel connection

0.5

0.7

Output sustaining voltage

VO (sus)

IOUT = 400 mA

Input current

IIN

VIN =2V,VCC = 6 V

µA

Spark killer diode reverse

current

Is (leak)

VCC1,2=9V

µA

Spark killer diode forward

voltage

VSF

IOUT = 400 mA

1.7

Pin Assignment

Truth Table

IN 1, 3

IN 2, 4

OUT 1, 3

OUT 2, 4

Mode

HLHL

Forward

LHLH

Reverse

Brake

OFF

Standby

Design Notes

If large current flows on the power supply (VS) line and the GND line, then in some applications and layouts, misoperation due to

line oscillation may result.

The modes during which large current flows are as follows:

Motor surge current when the DC motor starts up or when it shifts rotation directions (forward O reverse).

Passthrough current generated within the IC when shifting rotation directions (forward O reverse) or when shifting from

forward/reverse rotation to braking, or vice versa.

The following points should be kept in mind regarding the pattern layout:

Keep the wiring lines thick and short in order to reduce wiring inductance between the power supply (VS) and GND.

Insert a passthrough capacitor near the IC. (Maximum effect is obtained by inserting the passthrough capacitor between VS and

the pin 7 GND at the closest distance possible.

If the CPU and the LB1836M are mounted on separate boards and the difference between the ground potential of each board is

large, install resistors of about 10 k

Ω in series between the CPU and the LB1836M inputs.

Note) Both GNDs must be connected. P-GND of OUT2 and OUT4 and S-GND of the

control section are connected to the pin 7 GND within the IC, and P-GND of OUT1

and OUT3 is connected to the pin 14 GND.

LB1836M

No.3947-2/5

LB1836M Datasheet(PDF) 2 Page - Sanyo Semicon Device

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