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LB11921T

ON Semiconductor
Part Number LB11921T
Manufacturer ON Semiconductor
Description Three-Phase Brushless Motor Driver
Published Jan 14, 2016
Detailed Description Ordering number : ENA0604 LB11921T Monolithic Digital IC Three-Phase Brushless Motor Driver http://onsemi.com Overvie...
Datasheet PDF File LB11921T PDF File

LB11921T
LB11921T

Overview
Ordering number : ENA0604 LB11921T Monolithic Digital IC Three-Phase Brushless Motor Driver http://onsemi.
com Overview 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 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 11707 MS IM 20060327-S00010 No.
A0604-1/18 Allowable Operating Ranges at Ta = 25°C Parameter FG Schmitt output applied voltage FG Schmitt output current Lock detection applied voltage Lock detection output current Supply voltage Symbol VFGS IFGS VLD ILD V...


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