LB11921T データシートの表示（PDF） - SANYO -> Panasonic

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LB11921T

Monolithic Digital IC Three-Phase Brushless Motor Driver

SANYO -> Panasonic 

Ordering number : ENA0604

LB11921T Monolithic Digital IC

Three-Phase Brushless Motor Driver

Overview

The LB11921T is a pre-driver IC designed for variable-speed 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. Since the LB11921T includes a built-in VCO

circuit, applications can control the motor speed arbitrarily by varying the external clock frequency.

Functions

• Direct PWM drive output

• Speed discriminator + PLL speed control circuit

• Speed lock detection output

• Built-in VCO 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

Maximum supply voltage

Output current

Allowable power dissipation 1

Symbol

VCC max

IO max

Pd max1

Conditions

UH, VH, WH, UL, VL, WL output

Independent IC

Allowable power dissipation 2

Pd max2

Mounted on a circuit board*

Operating temperature

Topr

Storage temperature

Tstg

* Mounted on a specified board: 114.3mm×76.1mm×1.6mm, glass epoxy.

Ratings

Unit

8

V

10

mA

0.4

W

0.9

W

-20 to +80

°C

-55 to +150

°C

Any and all SANYO Semiconductor 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 Semiconductor representative

nearest you before using any SANYO Semiconductor products described or contained herein in such

applications.

SANYO Semiconductor 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 Semiconductor

products described or contained herein.

11707 MS IM 20060327-S00010 No.A0604-1/18

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