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Número de pieza | LB11988HR | |
Descripción | Fan Motor Driver | |
Fabricantes | Sanyo Semicon Device | |
Logotipo | ||
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LB11988HR Monolithic Digital IC
Fan Motor Driver
Overview
The LB11988HR is a motor driver IC optimal for driving the automotive fan motors.
Features
• 3-Phase full-wave current-linear drive system.
• Current limiter circuit built in.
• Output stage upper/lower over-saturation prevention circuit built in.
• Forward/backward rotation direction setting circuit built in.
• FG amplifier built in.
• Thermal shutdown circuit built in.
Absolute Maximum Ratings at Ta = 25°C
Parameter
Maximum supply voltage
Maximum output current
Allowable power dissipation
Operating temperature range
Storage temperature range
Symbol
VCC max
VS max
IO max
Pd max
Topr
Tstg
Conditions
Independent IC
Allowable Operating Range at Ta = 25°C
Parameter
Supply voltage
Hall input amplitude
Symbol
VS
VCC
VHALL
Conditions
Between hall inputs
Ratings
24
24
1.3
0.8
-40 to +85
-55 to +150
Unit
V
V
A
W
°C
°C
Ratings
5 to 22
5 to 22
±30 to ±80
Unit
V
mVo-p
Any and all SANYO Semiconductor products described or contained herein do not have specifications
that can handle applications that require extremely high levels of reliability, such as life-support systems,
aircraft's control systems, or other applications whose failure can be reasonably expected to result in
serious physical and/or material damage. Consult with your SANYO Semiconductor representative
nearest you before usingany SANYO Semiconductor products described or contained herein in such
applications.
SANYO Semiconductor assumes no responsibility for equipment failures that result from using products
at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition
ranges, or other parameters) listed in products specifications of any and all SANYO Semiconductor
products described or contained herein.
83006 / 52506 MH IM B8-7845 No.A0300-1/8
1 page Pin Functions
Pin Name
VCC
Pin
No.
21
GND
7
FRAME
UIN+, UIN- 12,13
VIN+, VIN-
14,17
WIN+,WIN- 18,19
UOUT
VOUT
WOUT
RF
27
28
1
23
VS 22
FR 6
LB11988HR
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Input/Output Equivalent Circuit
Each (+) input
18
14
12 200Ω
Each (-) input
200Ω
19
17
13
Pin Functions
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 for others than the output transistor.
Minimum potential of output transistor is
at RF pin.
U-phase Hall device input pin;
logic “H” presents IN+>IN-
V-phase Hall device input pin;
logic “H” presents IN+>IN-
W-phase Hall device input pin;
logic “H” presents IN+>IN-
23 RF
22 VS
Each OUT
27 28 1
200Ω
VCC
VCC
Lower oversaturation
prevention circuit
block
U-phase output pin.
V-phase output pin.
W-phase output pin.
(Built-in spark killer diode)
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.
Power supply pin for supplying power to
output section in IC.
Forward/Reverse switching pin.
FR 6
200Ω
Continued on next page.
No.A0300-5/8
5 Page |
Páginas | Total 8 Páginas | |
PDF Descargar | [ Datasheet LB11988HR.PDF ] |
Número de pieza | Descripción | Fabricantes |
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