82008 MS PC/41503RM (OT) No.7497-1/15

Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate

the performance, characteristics, and functions of the described products in the independent state, and are not

guarantees of the performance, characteristics, and functions of the described products as mounted in the

customer

device, the customer should always evaluate and test devices mounted in the customer

equipment.

Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to

"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,

communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be

intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace

instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety

equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case

of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee

thereof. If you should intend to use our products for applications outside the standard applications of our

customer who is considering such use and/or outside the scope of our intended standard applications, please

consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our

customer shall be solely responsible for the use.

LB11922

Overview

The LB11922 is a pre-driver IC designed for constantspeed control of 3-phase brushless motors. It can be used to

implement a motor drive circuit with the desired output capacity (voltage, current) by using discrete transistors for the

output stage. It implements direct PWM drive for minimal power loss.

Features

• Direct PWM drive output

• Speed discriminator + PLL speed control circuit

• Speed lock detection output

• Built-in crystal oscillator circuit

• Forward/reverse switching circuit

• Braking circuit (short braking)

• Full complement of on-chip protection circuits, including lock protection, current limiter, and thermal shutdown

protection circuits.

Specifications

Absolute Maximum Ratings at Ta = 25

°C

Parameter

Symbol

Conditions

Ratings

Unit

Maximum supply voltage

VCC max

8V

Maximum input current

IREG max

VREG pin

2

mA

Output current

IO max

UH, VH, WH, UL, VL, and WL outputs

30

mA

Pd max1

Independent IC

0.62

W

Allowable power dissipation

Pd max2

When Mounted on the specified PCB

1.36

W

Operating temperature

Topr

-20 to +80

°C

Storage temperature

Tstg

-55 to +150

°C

* Specified circuit board : 114.3

Monolithic Digital IC

For OA Products

Three-Phase Brushless Motor Driver

Ordering number : EN7497A