LB1855NM 查看數據表（PDF） - SANYO -> Panasonic
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LB1855NM Datasheet PDF : 5 Pages
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LB1855NM
Sample Application Circuit
Hall input voltage range: 2.2 to (VCC – 0.7) V DC
70 mV p-p to 300 mV p-p AC
Truth Table
However, note that certain motors may require output capacitors to prevent oscillation.
Item
Source → sink
Input
U
V
W
1
V phase → W phase
H
H
L
2
U phase → W phase
H
L
L
3
W phase → V phase
L
L
H
4
V phase → U phase
L
H
L
5
U phase → V phase
H
L
H
6
W phase → U phase
L
H
H
Input: “H” indicates that the input phase 1 is at least 0.2 V higher than phase 2.
“L” indicates that the input phase 1 is at least 0.2 V lower than phase 2.
Pin Functions
Pin No. Pin Pin voltage (V)
Pin description
Equivalent circuit
1
FC
• Frequency characteristics correction
Oscillation in the current control closed loop can be prevented
by inserting a capacitor between this pin and VREF.
2
VCC
3
WOUT
4
VOUT
5
UOUT
7 to 18 • Power supply pin
• Outputs pin
6
Rf
• Ground for the output transistor
The output current can be detected as a voltage by inserting the
resistor Rf between this pin and ground to provide fixed current
drive. The current limiter also operates by detecting this voltage.
Continued on next page.
No. 5798-3/5
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