LB11922_08 Datasheet, PDF (1/15 Pages) Sanyo Semicon Device – For OA Products Three-Phase Brushless Motor Driver

Ordering number : EN7497A
LB11922
Monolithic Digital IC
For OA Products
Three-Phase Brushless Motor Driver
Overview
The LB11922 is a pre-driver IC designed for constantspeed 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.
Features
• Direct PWM drive output
• Speed discriminator + PLL speed control circuit
• Speed lock detection output
• Built-in crystal oscillator 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
Maximum input current
Output current
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VCC max
IREG max
IO max
Pd max1
Pd max2
Topr
Tstg
Conditions
VREG pin
UH, VH, WH, UL, VL, and WL outputs
Independent IC
When Mounted on the specified PCB
* Specified circuit board : 114.3 × 76.1 × 1.6mm³ : glass epoxy board
Ratings
Unit
8
V
2
mA
30
mA
0.62
W
1.36
W
-20 to +80
°C
-55 to +150
°C
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,
communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be
intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace
instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety
equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case
of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee
thereof. If you should intend to use our products for applications outside the standard applications of our
customer who is considering such use and/or outside the scope of our intended standard applications, please
consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our
customer shall be solely responsible for the use.
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.
82008 MS PC/41503RM (OT) No.7497-1/15