LB11923V Datasheet, PDF (1/20 Pages) Sanyo Semicon Device – Three-Phase Brushless Motor Driver

Ordering number : ENN7498A
LB11923V
Monolithic Digital IC
Three-Phase Brushless
Motor Driver
http://onsemi.com
Overview
The LB11923V is a pre-driver IC designed for variable-speed 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. Since the LB11923V includes a built-in VCO
circuit, applications can control the motor speed arbitrarily by varying the external clock frequency.
Function
 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
Symbol
Conditions
Maximum supply voltage
VCC max
Maximum input current
IREG max
VREG pin
Output current
IO max
UH, VH, WH, UL, VL, and WL outputs
Allowable power dissipation 1
Pd max1
Independent IC
Allowable power dissipation 2
Pd max2
* When mounted on the specified PCB
Operating temperature
Topr
Storage temperature
Tstg
* Specified PCB : 114.3  76.1  1.6 mm glass epoxy PCB
Ratings
Unit
8
V
2
mA
30
mA
0.62
W
1.79
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
September, 2013
D0606 MS IM 20060327-S0004/21604TN (OT) No.7498-1/20