LB1951 데이터 시트보기 (PDF) - SANYO -> Panasonic
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LB1951 Datasheet PDF : 9 Pages
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LB1951V
Pin Functions
Pin No.
1
Pin name
VCC1
2
VCC2
3
VS
5
UOUT
7
VOUT
9
WOUT
6, 8
Rf
10
VH+
11
VH–
I/O equivalent circuit
Approx.
1.9V
20kΩ 10 VH+
2 VCC2
3 VS
5 UOUT
7 VOUT
9 WOUT
6 RF
8
A12468
1 VCC1
11 VH–
Function
Power supply pin for supplying power to all circuits
except amplitude control block in output block in
IC.
Power supply pin for supplying power to all circuits
of the amplitude control block and the output
control block in IC.
Power supply pin for motor drive. Apply a voltage of
VCC2 or lower to this pin.
U-phase output pin
V-phase output pin
W-phase output pin
(Spark killer diode built in)
Pins for grounding output power transistor.
Pins for supplying the Hall element bias voltage.
Voltage of 0.95 V (typ.) is generated between VH+
and VH– . (when IH = 5 mA)
A12469
12
ANGLE
1 VCC1
Pins for controlling the Hall input-output gain. The
gain is controlled by a resistor between this pin and
GND.
16
17
UIN1
UIN2
1.2VTYP VCC1
200Ω
16 18 20 U-phase Hall element input pin;
400Ω
17
200Ω
Logic ‘‘H’’ represents IN+ > IN–.
18
VIN1
ANGLE 12
19
VIN2
400Ω
19
21
V-phase Hall element input pin;
Logic ‘‘H’’ represents IN+ > IN– .
20
WIN1
21
WIN2
W-phase Hall element input pin;
Logic ‘‘H’’ represents IN+ > IN–.
A12470
13
GND
Pin for grounding other than output transistors.
Minimum potential of output transistors is equal to
the level at Rf pin.
14
FRC
VCC1
VCC1
VCC1
STBY VCC1
Forward/reverse select pin.
The voltage on this pin is used for forward/reverse
15
select. (with Hysteresis)
50KΩ
14
15
STBY
FRC
Pin for selecting the bias supply for all circuits
except the FG comparator.
‘‘L’’ level on this pin cuts the bias supply.
A12471
Continued on next page.
No. 5232-4/9
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