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Sanyo Semicon Device - Monolithic Digital IC Three-Phase Brushless Motor Driver

Numéro de référence LB11921T
Description Monolithic Digital IC Three-Phase Brushless Motor Driver
Fabricant Sanyo Semicon Device 
Logo Sanyo Semicon Device 





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LB11921T fiche technique
Ordering number : ENA0604
LB11921T Monolithic Digital IC
Three-Phase Brushless Motor Driver
www.DataSheetO4Uv.ceomrview
The LB11921T 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 LB11921T includes a built-in VCO
circuit, applications can control the motor speed arbitrarily by varying the external clock frequency.
Functions
Direct PWM drive output
Speed discriminator + PLL speed control circuit
Speed lock detection output
Built-in VCO 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
Output current
Allowable power dissipation 1
Symbol
VCC max
IO max
Pd max1
Conditions
UH, VH, WH, UL, VL, WL output
Independent IC
Allowable power dissipation 2
Pd max2
Mounted on a circuit board*
Operating temperature
Topr
Storage temperature
Tstg
* Mounted on a specified board: 114.3mm×76.1mm×1.6mm, glass epoxy.
Ratings
8
10
0.4
0.9
-20 to +80
-55 to +150
Unit
V
mA
W
W
°C
°C
Any and all SANYO Semiconductor products described or contained herein do not have specifications
that can handle applications that require extremely high levels of reliability, such as life-support systems,
aircraft's control systems, or other applications whose failure can be reasonably expected to result in
serious physical and/or material damage. Consult with your SANYO Semiconductor representative
nearest you before using any SANYO Semiconductor products described or contained herein in such
applications.
SANYO Semiconductor assumes no responsibility for equipment failures that result from using products
at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition
ranges, or other parameters) listed in products specifications of any and all SANYO Semiconductor
products described or contained herein.
11707 MS IM 20060327-S00010 No.A0604-1/18

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