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LB11685VH Datasheet(PDF) 5 Page - ON Semiconductor

Part No. LB11685VH
Description  3-phase sensor less Motor driver
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Manufacturer  ONSEMI [ON Semiconductor]
Direct Link  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

LB11685VH Datasheet(HTML) 5 Page - ON Semiconductor

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LB11685VH
No.A1773-5/7
Pin Function
Pin No.
Pin name
Function
Equivalent circuit
16
12
14
UOUT
WOUT
VOUT
Each output pin of three phases.
20
PGND
GND pin in the output part.
This pin is connected to GND. The SGND pin is also
connected to GND
9
RF
Pin to detect output current.
By connecting a resistor between this pin and VCC, the
output current is detected as a voltage.
The current limiter is operated by this voltage.
21
MCOM
Motor coil midpoint input pin.
The coil voltage waveform is detected based on this
voltage.
22
SGND
Ground pin (except the output part)
This pin is connected to GND.
The PGND pin is also connected to GND.
23
FG
FG out made by back EMF pin.
It synchronizes FG out with inverted V-phase.
When don’t use this function, open this pin.
25
RD
Motor lock protection detection output pin.
Output with L during rotation of motor.
Open during lock protection of motor (High-impedance).
When don’t use this function, open this pin.
27
VCO
PLL output pin and VCO input pin.
To stabilize PLL output, connect a capacitor between this
pin and GND.
1
CX
VCO oscillation output pin.
Operation frequency range and minimum frequency are
determined by the capacity of the capacitor connected to
this pin.
Continue to the next page.
Pin No.9
Pin No.20
Pin No.16,14,12
Pin No.21
SGND
SGND SGND
VCC
VCC
SGND
SGND
Pin No.23
No.25
SGND
SGND
Pin No.27
VCC
SGND
SGND
VREG
VREG
VREG
Pin No.1
VCC
SGND
SGND
VREG


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