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PDF LB11988V Data sheet ( Hoja de datos )
| Número de pieza | LB11988V | |
| Descripción | Fan Motor Driver | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
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Ordering number : ENA0377A
LB11988V
Monolithic Digital IC
Fan Motor Driver
http://onsemi.com
Overview
LB11988V is a motor driver IC optimal for driving the DC fan motors.
Functions
• Three-phase full-wave current linear drive
• Built-in current limiter circuit
• Built-in saturation prevention circuits in both the upper and lower sides of the output stage
• Forward/backward rotation direction setting circuit built in
• FG amplifier
• Thermal shutdown circuit
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
Maximum output current
Allowable power dissipation
VCC max
VS max
IO max
Pd max
Independent IC
24 V
24 V
1.3 A
0.5 W
Operating temperature
Topr
-30 to +75
°C
Storage temperature
Tstg
-55 to +150
°C
Caution 1) Absolute maximum ratings represent the value which cannot be exceeded for any length of time.
Caution 2) Even when the device is used within the range of absolute maximum ratings, as a result of continuous usage under high temperature, high current,
high voltage, or drastic temperature change, the reliability of the IC may be degraded. Please contact us for the further details.
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating
Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.
Allowable Operating Ratings at Ta = 25°C
Parameter
Supply voltage
Hall input amplitude
Symbol
VS
VCC
VHALL
Conditions
Between Hall inputs
Ratings
5 to 22
7 to 22
±30 to ±80
Unit
V
V
mVo-p
Semiconductor Components Industries, LLC, 2013
May, 2013
20812 SY 20120124-S00010//D1306 TI IM B8-7391 No.A0377-1/6
1 page  
Equivalent Circuit
Pin name
UIN+
UIN-
VIN+
VIN-
WIN+
WIN-
UOUT
VOUT
WOUT
RF
VS
FR
FC
FGOUT
LB11988V
Equivalent circuit
Input +
200Ω
100μA
200Ω
Input -
VS VCC
Output
150μA
30kΩ
200Ω
Lower side oversaturation
prevention circuit input block
RF
VCC
200Ω
FR
200μA
1/2 VCC
VCC
10kΩ
FC
VCC VCC
FGOUT
No.A0377-5/6
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet LB11988V.PDF ] | |
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