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LB1877M Datasheet(PDF) 6 Page - Sanyo Semicon Device

Part No. LB1877M
Description  Brushless Motor Driver with Speed Control for Portable Cassette Recorders
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Maker  SANYO [Sanyo Semicon Device]
Homepage  http://www.ssdc-jp.com/eng/
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 6 page
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LB1877M
No. 6199-6/7
Pin number
16
11
19
20
1
2
17
3
Continued from preceding page
Unit (resistance:
Ω, capacitance: F)
Pin name
FC
S/S
DR
UOUT
VOUT
WOUT
LB
P – GND
Pin voltage
Voltage
input not
allowed
0 to Vcc
0 to Vcc
0 to 8V
0 to 1V
Equivalent circuit
Pin function
Frequency characteristics
adjustment pin.
Connect to ground via
capacitor.
Start/stop pin.
Forward/reverse rotation pin.
U, V, W phase output pins.
Connect to motor coils
Motor start lockup prevention.
Power block ground.
Continued on next page
80k
50k
50k
11
50k
50k
19
100k
20 1
2
200
17
6k
To RI pin
Drive current
3S
16
2k




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