LB1876_09 SANYO [Sanyo Semicon Device], LB1876_09 Datasheet - Page 8

• Manufacturer Part Number: LB1876_09
• Description: For Polygon Mirror Motors 3-phase Brushless Motor Driver
• Manufacturer: SANYO [Sanyo Semicon Device]

Continued from preceding page.
Pin No.
22
23
24
25
26
27
30
PD
CLD
FGS
LD
S/S
CLK
V CC
Pin name
Phase comparator output pin.
The phase error is converted to a pulse duty and output from
this pin.
Phase lock signal mask time setting pin.
A mask time of about 90ms can be set by inserting a
capacitor (about 0.1µF) between this pin and ground. Leave
this pin open if there is no need to mask.
FG Schmitt output pin.
Open collector output.
Phase lock detection output pin.
Open collector output.
Turns on (goes low) when phase lock is detected.
Start/stop control pin.
Low: 0 to 1.5V
High: 3.5V to VREG
Hysteresis: About 0.5V
Apply a low level to start; this pin goes high when open.
Clock input pin.
Low: 0 to 1.5V
High: 3.5V to VREG
Hysteresis: About 0.5 V
f CLK = 10kHz maximum
If there is noise on the clock signal, remove that noise with a
capacitor.
Power supply pin
Insert a capacitor between this pin and ground to prevent
noise from entering the IC. (Use a value of 20 or 30µF or
higher.)
Function
LB1876
VREG
VREG
VREG
VREG
VREG
VREG
Equivalent curcuit
300Ω
22kΩ
22kΩ
300Ω
Continued on next page.
22
2kΩ
2kΩ
23
24
25
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