LB11921T Datasheet, PDF (10/18 Pages) Sanyo Semicon Device – Monolithic Digital IC Three-Phase Brushless Motor Driver

LB11921T
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Pin No.
Symbol
Pin Description
15
C
VCO oscillator connection
VCC
Insert a capacitor between this pin and ground.
The oscillation frequency of the C pin must not
exceed 1.2MHz.
Equivalent Circuit
300Ω
15
16
CSD
Set the operating time of the constrained-rotor
protection circuit.
VCC
Reset circuit
Insert a capacitor between this pin and ground.
This pin also functions as the logic circuit block
power-on reset pin.
300Ω
16
17
NC
There is unconnected pin, and can be used for
wiring.
18
FGOUT FG amplifier output
VCC
This pin is connected to the FG Schmitt
comparator circuit internally in the IC.
18
19
FGIN^-
FG amplifier inverting input
20
FGIN⁺
FG amplifier noninverting input.
Insert a capacitor between this pin and ground.
The 1/2 VCC potential.
FG Schmitt comparator
VCC
500Ω
20
300Ω
FGOUT
500Ω
19
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No.A0604-10/18