LB1825 Datasheet, PDF (1/9 Pages) Sanyo Semicon Device – Three-Phase Brushless Motor Driver

Ordering number : EN4845B
Monolithic Digital IC
LB1825
Three-Phase Brushless Motor Driver
Overview
The LB1825 is a three-phase brushless motor driver IC
optimal for LBP polygon mirror and magneto-optical disk
spindle motor drive.
Functions and Features
• Three-phase full-wave current control drive
• PLL speed control
• Internal 24-mode clock divisor switching
• Phase lock detector output
• FG/Hall FG selection
• Current limiter circuit
• 7 V stabilized power supply output pin
• Reverse torque braking
• Crystal oscillator circuit
• Internal/external reference frequency selection
• Built-in FG amplifier and FG pulse output
• Forward/reverse rotation switching
• Low power supply voltage protection circuit
• Thermal protection circuit
Package Dimensions
unit: mm
3147A-DIP28H
[LB1825]
SANYO: DIP28H
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Maximum supply voltage
Maximum output current
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
V_CC max
I_O max
Pd max1
Pd max2
Topr
Tstg
Conditions
t < 0.1 s
Independent IC
With an arbitrarily large heat sink
Ratings
Unit
30
V
2.0
A
3
W
20
W
–20 to +80
°C
–55 to +150
°C
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
83097HA (OT)/N3095HA (OT)/91494TH (OT) No. 4845-1/9