APX9322 Datasheet, PDF (15/20 Pages) Anpec Electronics Coropration – Three-Phase Full-wave Sine-wave Brushless Motor Driver

APX9322
Application Information
CT Capacitor
The capacitor that is connected from CT pin to GND determines the shutdown time and restart time.
Locked
Detection
Time
=
( ) _{C V} ×
− 0.2V
CT
CTH
ICT1
( ) _Restart
Time=
C×
CT
V V ^− CTH
CTL
ICT1
Shutdown
Time=
C (V V ) ×
CT
−
CTH
CTL
ICT2
For example:
V_CC=12V, C_CT=1µF
V_CTL=1V, V_CTH=3V, I_CT1=2µA, I_CT2=0.2µA
Locked Detection Time = 1.4s
Restart Time = 1s
Shutdown Time= 10s
The value of C_CT must be considered with soft start up result.
RESET Capacitor
The capacitor that is connected from RESET pin to GND determines the Electric Motor Brakes. In the Power ON and
Quick Start before.
C _I V _{Braking time =}
×
RESET
RESET
RESET
EX:
I_RESET = 1.2µA , V_RESET = 1.9V , C_RESET = 0.22µF
Braking time = 0.348s
Copyright © ANPEC Electronics Corp.
15
Rev. A.1 - Feb., 2016
www.anpec.com.tw