LB11826 Datasheet, PDF (1/11 Pages) Sanyo Semicon Device – LB11826

Ordering number : EN7109A
LB11826
Monolithic Digital IC
For OA Products
Three-Phase Brushless Motor Driver
http://onsemi.com
Overview
The LB11826 is a three-phase brushless motor driver that is optimal for driving drum and paper feed motors in laser
printers and plain paper copiers. This IC adopts a direct PWM drive technique for minimal power loss. Flexible control
of motor speed in response to an externally provided clock frequency (corresponding to the FG frequency) can be
implemented by using the LB11826 in conjunction with the Sanyo LB11825M.
Features
• Three-phase bipolar drive (30V, 2.5V)
• Direct PWM drive
• Built-in low side inductive kickback absorbing diode
• Speed discriminator + PLL speed control
• Speed locked state detection output
• Built-in forward/reverse switching circuit
• Full complement of built-in protection circuits, including current limiter circuit, thermal protection circuit, and motor
constraint protection circuit.
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Supply voltage
Output current
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VCC max
IO max
Pd max1
Pd max2
Topr
Tstg
Conditions
T ≤ 500ms
Independent IC
When infinitely large heat sink
Ratings
Unit
30
V
2.5
A
3
W
20
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
71608 MS PC/O0503AS (OT) No.7109-1/11