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LB11988D Folha de dados(PDF) 5 Page - Sanyo Semicon Device

Nome de Peças LB11988D
Descrição Electrónicos  Fan Motor Driver
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Fabricante Electrônico  SANYO [Sanyo Semicon Device]
Página de início  https://www.sanyo-av.com/us/
Logo SANYO - Sanyo Semicon Device

LB11988D Folha de dados(HTML) 5 Page - Sanyo Semicon Device

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LB11988D
No.A0433-5/8
Pin Functions
Pin Name
Pin
No.
Input/Output Equivalent Circuit
Pin Functions
VCC
1
Power supply pin for supplying power to
all circuits expect output section in IC;
this voltage must be stabilized so as to
eliminate ripple and noise.
GND
11
GND for others than the output transistor.
Minimum potential of output transistor is
at RF pin
UIN+, UIN-
7, 6
U-phase Hall device input pin;
logic “H” presents IN+>IN-
VIN+, VIN-
5, 4
V-phase Hall device input pin;
logic “H” presents IN+>IN-
WIN+, WIN-
3, 2
W-phase Hall device input pin;
logic “H” presents IN+>IN-
UOUT
VOUT
WOUT
16
15
14
U-phase output pin.
V-phase output pin.
W-phase output pin.
(Built-in spark killer diode)
RF
19
Output current detection pin.
Connecting Rf between this pin and GND
activates current limiting circuit. Then the
lower over-saturation prevention circuit is
activated in accordance with this pin
voltage. Since the over-saturation
prevention level is set with this voltage,
the lower over-saturation prevention effect
may deteriorate in the high current range
if the Rf value is reduced to an extremely
low level.
VS
20
Power supply pin for supplying power to
output section in IC.
FR
12
Forward/Reverse switching pin.
Continued on next page.
Each (+) input
200
200
Each (-) input
7
5
3
6
4
2
200
Each OUT
VS
VCC
Lower oversaturation
prevention circuit
block
RF
20
19
15 14
16
200
FR
VCC
12


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