LB1876-TLM-E 查看數據表（PDF） - ON Semiconductor

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LB1876-TLM-E

Monolithic Digital IC For Polygon Mirror Motors 3-phase Brushless Motor Driver

ON Semiconductor 

Ordering number : EN6201B

LB1876

Monolithic Digital IC

For Polygon Mirror Motors

3-phase Brushless Motor Driver

http://onsemi.com

Overview

The LB1876 is a driver for polygon mirror motors such as used in laser printers and similar equipment.

It incorporates all necessary circuitry (speed control + driver) on a single chip. Direct PWM drive enables drive with

low power loss.

Features

• 3-phase bipolar drive

• Direct PWM drive technique

• Built-in lower side output diode

• Output current limiter

• Reference clock input circuit (FG frequency equivalent)

• PLL speed control circuit

• Phase lock detector output (with masking function)

• Built-in protection circuitry includes current limiter, restraint protection, overheat protection, low-voltage protection,

etc.

• Brake method switching circuit (free-run or reverse torque)

• 5V regulator output

• Power save function

Specifications

Absolute Maximum Ratings at Ta = 25°C

Parameter

Symbol

Conditions

Maximum supply voltage

Maximum output current

Allowable power dissipation

VCC max

IO max

Pd max1

t ≤ 500ms

Independent IC

Pd max2

Mounted on a specified board*

Operating temperature

Topr

Storage temperature

Tstg

*Specified board: 114.3mm × 76.1mm × 1.6mm, glass epoxy board.

Ratings

Unit

30

V

2.5

A

0.9

W

2.1

W

-20 to +80

°C

-55 to +150

°C

Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating

Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.

Semiconductor Components Industries, LLC, 2013

May, 2013

31109 MS/61202RM (OT)/62599RM (KI) No.6201-1/12

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