LB11923V(2004) 데이터 시트보기 (PDF) - SANYO -> Panasonic

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LB11923V
(Rev.:2004)

Three-Phase Brushless Motor Driver

SANYO -> Panasonic 

Continued from preceding page.

Pin No.

Pin

LB11923V

Functions

VCO oscillator connection

This pin sets the VCO frequency.

21

C

Insert a capacitor between this pin and ground.

Set the value of the capacitor so that the oscillator

frequency does not exceed 1 MHz.

VCC1

Equivalent circuit

300 Ω

21

Sets the operating time of the constrained-rotor protection

circuit.

Reference signal oscillator used when the clock signal is cut

22

CSD

off and to prevent malfunctions.

The protection function operating time can be set by

connecting a capacitor between this pin and ground.

This pin also functions as the logic circuit block power-on

reset pin.

VCC1 Reset circuit

300 Ω

22

23

24

FGIN+

FGIN–

FG amplifier input

VCC1

500 Ω

23

500 Ω

FGOUT

500 Ω

24

VCC1

FG amplifier output

25

FGOUT This pin is connected to the FG Schmitt comparator circuit

25

internally in the IC.

27

RF GND

Output current detection

Connect a resistor between this pin and ground.

FG Schmitt comparator

VCC1

27

Continued on next page.

No. 7498-10/19

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