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| AN8850_15 Datasheet, PDF (4/5 Pages) Unisonic Technologies – MOTOR CONTROL CIRCUITS | |||
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AN8850
Preliminary
 TYPICAL APPLICATION CIRCUIT
Speed Control Circuit with 3V Core Motor
CMOS IC
Motor
Ra=4Ω
M
8765
0.1µF
UTC
AN8850
1234
1000pF
9.1kΩ
(2000ppm/°C)
VR
1kB
510Ω
3Ω
1µF -
10V +
VCC
0.4Ω
(3900ppm/°C)
Motor Constants
Ra : Internal resistor = 4Ω
Ka : Electromotive force constant = 0.4mV/rpm
KT : Torque constant = 30g · cm/A
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
4 of 5
QW-R502-507.a
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