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PDF LV8804V Data sheet ( Hoja de datos )
| Número de pieza | LV8804V | |
| Descripción | Fan Motor Driver | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
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Ordering number : ENA1407A
LV8804V
Bi-CMOS LSI
PC and Server
Fan Motor Driver
http://onsemi.com
Overview
The LV8804V is a motor driver for PC and server fans.
Feature
• Direct PWM three-phsae sensorless motor driver
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
VCC maximum supply voltage
VG maximum supply voltage
VCC max
VG max
16 V
21 V
OUT pin maximum output current
SOFTST pin withstand voltage
FR pin withstand voltage
CTL pin withstand voltage
MINSP pin withstand voltage
FG output pin withstand voltage
FG pin maximum output current
1/2FG output pin withstand voltage
1/2FG pin maximum output current
RD output pin withstand voltage
IOUT max
VSOFTST max
VFR max
VCTL max
VMINSP max
VFG max
IFG max
V1/2FG max
I1/2FG max
VRD max
UO, VO, and WO pins
1.2 A
6V
6V
6V
6V
16 V
5 mA
16 V
5 mA
16 V
RD pin maximum output current
IRD max
5 mA
Allowable Power dissipation 1
Pd max1
Independent IC
0.6 W
Allowable Power dissipation 2
Pd max2
Mounted on designated board *
1.3 W
Operating temperature
Topr
-30 to +95
°C
Storage temperature
Tstg
-55 to +150
°C
* : When mounted on the designated 76.1mm × 114.3mm × 1.6mm, glass epoxy board (single-layer)
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.
Semiconductor Components Industries, LLC, 2013
May, 2013
N0211 SY 20111019-S00004/31109 MS PC 20090114-S00008 No.A1407-1/10
1 page  
Pin Function
Pin No. Pin name
36 COM
1 COMIN
2 FIL
LV8804V
Function
Motor middle point connection.
Motor position detection comparator filter
pin. A capacitor must be connected between
this pin and the FIL pin (pin 2).
Motor position detection comparator filter
pin. A capacitor must be connected between
this pin and the COMIN pin (pin 5).
VG
36
3 VREG
4
Regulator voltage (5V) output.
A capacitor must be connected between
these pins and ground.
VCC
Equivalent circuit
12
VREF
3
4
5, 6,
13, 15,
25, 31
7
NC
F/R
8 CTL
9 MINSP
10 SOFTST
No connection. These pins are not
connected with the internal parts.
Motor rotation direction switching. A
high-level input causes current to flow into
the motor in the order of U, V, and W and a
low-level input in the order of U, W, and V.
Changing the order of current application
turns the motor in the opposite direction.
Motor control voltage input.
When the control voltage is higher than 3 V
(3V < CTL voltage), the motor stops.
The motor speed is controlled by varying the
control voltage within the range of 3V to 1V
(3V > CTL voltage > 1 V). When the control
voltage becomes lower that 1V (1 V > CTL
voltage), the current limit set by the RF
resistor is reached.
Minimum speed setting voltage input.
The minimum speed of the motor can be set
by resistor-dividing the regulator voltage and
feeding the resultant voltage that is within the
range of 1V to 3V (1 V < MINSP < 3V).
VREG
7
Reverse signal
15kΩ
100kΩ
Forward signal
VREG
500Ω
500Ω
Soft start time setting.
The motor can be started smoothly by
connecting a capacitor between this pin and
ground.
9
VREG
8
Forward/reverse
switching signal
500Ω
10
Continued on next page.
No.A1407-5/10
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet LV8804V.PDF ] | |
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