lv8105w ETC-unknow, lv8105w Datasheet - Page 13

• Manufacturer Part Number: lv8105w
• Description: For Variable Speed Control Three-phase Brushless Motor Predriver
• Manufacturer: ETC-unknow

Continued from preceding page.
Pin No.
13
14
15
16
17
18
19
20
21
22
23
Pin name
FGOUT
FGIN +
FGIN -
IN1 +
IN2 +
IN3 +
FGS
IN1 -
IN2 -
IN3 -
LD
FG amplifier Schmitt output pin.
This is an open collector output.
Lock detection output pin.
This is an open collector output.
Goes low when the motor speed is within the speed
lock range (±6.25%).
FG amplifier output pin.
This pin is connected to the FG Schmitt comparator
circuit internally in the IC.
FG amplifier inverting input pin.
FG amplifier non-inverting input pin.
1/2 VREG potential.
Connect a capacitor between this pin and GND.
Hall input pins.
The input is seen as a high level input when IN + >
IN - , and as a low level input for the opposite state.
If noise on the Hall signals is a problem, insert
capacitors between the corresponding IN + and IN -
inputs.
Pin function
LV8105W
FG Schmitt comparator
17
18
VREG
VREG
20
VREG
500Ω
VREG
VREG
30kΩ
30kΩ
22
Equivalent circuit
Continued on next page.
500Ω
105kΩ
No.A1271-13/21
500Ω
19 21 23
FGOUT
13
14
15
16