LB1876_09 Datasheet, PDF (1/12 Pages) Sanyo Semicon Device – For Polygon Mirror Motors 3-phase Brushless Motor Driver

Ordering number : EN6201B
LB1876
Monolithic Digital IC
For Polygon Mirror Motors
3-phase Brushless Motor Driver
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
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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's products or equipment. To verify symptoms and states that cannot be evaluated in an independent
device, the customer should always evaluate and test devices mounted in the customer's products or
equipment.
31109 MS/61202RM (OT)/62599RM (KI) No.6201-1/12