LB11899J Datasheet, PDF (10/16 Pages) ON Semiconductor – Three-in-One Motor Driver

LB11899J
Continued from preceding page.
Pin
Symbol
Pin voltage
No
25
PGO2
Pin Description
Drum PG Schmidt amplifier output
pin
26
BFGO
Drum motor reverse
counter-electromotive voltage
detection output pin (three-phase
synthesizing)
Equivalent Circuit
VCC
25
5kΩ
VCC
5kΩ
26
23
VCOIN
14
DUOUT
15
DVOUT
16
DWOUT
18
DRF
17
DCOM
VCO circuit voltage input pin of
drum block.
The PCOUT pin voltage is input
via CR filter.
1kΩ
23
VCC
Drum motor driver output pin
Minimum potential of drum motor
driver output transistor.
Constant-current control is made
through detection of this voltage.
The current limiter also functions
by detecting this potential.
Motor coil neutral point input pin.
The coil voltage waveform is
detected with reference to this
voltage.
14
15
18
16
DVCO
14 15 16
10kΩ
2kΩ 200Ω
4.7kΩ
DLVCO
200Ω
17
200Ω
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No.A2229-10/16