LV8062FA.pdf 데이터시트 (총 7 페이지) - 파일 다운로드 LV8062FA 데이타시트 다운로드

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Ordering number : ENA2072
LV8062FA
Bi-CMOS IC
Fan Motor Driver
Single-Phase Full-Wave Driver
http://onsemi.com
Overview
The LV8062FA is the driver IC with BTL linear output for single-phase fan motor, and that drives at high efficiency,
low power, and low noise by suppressing the reactive power.
The BTL output can be combined with the PWM control by an external signal, which is optimum for the note PC, the
CPU cooler, etc. that requires low power dissipation and low noise.
Functions
Single-phase full-wave operating by BTL output (BTL amplifier gain : +44dB)
Speed control available by PWM pin
Hall bias output pin (VHB = 1.05V typ)
Built-in Quick Start circuit
FG(rotation signal) output pin (Open drain output)
Built-in thermal-shutdown (TSD) circuit
Built-in lock protection and automatic return circuit
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
OUT pin output current
OUT pin output voltage handling
FG output voltage handling
FG output current
HB output current
Allowable power dissipation
VCC max
IOUT max1
IOUT max2
VOUT max
VFG max
IFG max
IHB max
Pd max1
In regular mode
In lock-detection mode
Independent IC
7V
0.7 A
1A
7V
7V
5 mA
10 mA
0.2 W
Pd max2
IC on board *
0.4 W
Operating temperature
Topr
-30 to +95
°C
Storage temperature
Tstg
-55 to +150
°C
* Specified substrate : 20mm × 10mm × 0.8mm, Paper phenol
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
70412 SY 20120209-S00002 No.A2072-1/7

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LV8062FA
Recommended Operating Conditions at Ta = 25°C
Parameter
Symbol
Conditions
Supply voltage
Hall input common-mode input voltage
range
VCC opg
VCC min
VICM
Active at all circuit
Start-up with PWM=H
Ratings
2.5 to 6.0
2.2 to 6.0
0.3 to VCC-1.5
Unit
V
V
V
Electrical Characteristics at Ta = 25°C, VCC = 5V
Parameter
Circuit current
HB bias voltage
Hall input bias current
Symbol
ICC
ICCO
VHB
IHIN
Conditions
Active
Stand-by
IHB = 5mA
min
0.9
Output On voltage
Hall amplifier output offset voltage
Hall amplifier voltage gain
VO
VINOFS
GH
IO = 250mA, source + sink
-10
39
PWM pin input Low level
PWM pin input High level
PWM input smallest pulse width
FG output low-level voltag
FG output leakage current
FG comparator hysteresis width
Output on time in Lock-detection
VPWML
VPWMH
TPWM
VFG
IFGL
ΔVHYS
TACT
Design guarantee *
IFG = 3mA
VFG = 7V
0
2.5
±5
0.45
Output off time in Lock-detection
TDET
4.5
Output on/off ratio in Lock-detection
TRTO
TRTO=TDET/TACT
8
Thermal shutdown operating temperature TSD
Design guarantee *
Thermal shutdown hysteresis width
ΔTSD
Design guarantee *
* Design guarantee: Indicates a design target value. These parameters are not tested in the independent IC.
Ratings
typ
1.5
1.05
0.25
44
5
±15
0.6
6
10
180
40
max
3.0
200
1.2
1
0.35
10
47
0.7
VCC
0.3
10
±20
0.75
7.5
11
Unit
mA
μA
V
μA
V
mV
dB
V
V
μs
V
μA
mV
sec
sec
°C
°C
Pin Assignment
IN1 1
HB 2
IN2 3
SGND 4
OUT1 5
10 PWM
9 FG
8 VCC
7 OUT2
6 PGND
Top view
No.A2072-2/7

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Package Dimensions
unit : mm (typ)
3428
3.0
10
12
0.5
0.25 0.16
SANYO : Micro10
Block Diagram
LV8062FA
Pd max -- Ta
0.5
Specified board (20 × 10 × 0.8mm3, paper phenol)
0.4
0.3
Independent IC
0.2
0.18
0.1 0.09
0
--30 --10
10
30
50
70 90 110
Ambient temperature, Ta -- °C
IN1 1
HB 2
IN2 3
TSD
LEVEL ENABLE
SHIFT
LOCK
DETECTION
OSC
HB
CONTROL
SGND 4
OUT1 5
10 PWM
9 FG
8 VCC
7 OUT2
6 PGND
No.A2072-3/7

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Sample Application Circuit
LV8062FA
Di Cr
*1
*2,3
R1
H
VCC
*5
PWM
HB
FG
IN2(-)
OUT1
IN1(+)
OUT2
SGND PGND
Element in the bord
*4
*1 When the diode Di is used to prevent device destruction from reverse connection, the capacitor Cr must be inserted to
assure a path for regenerative currents.
Similarly, if there no nearby capacitors on the fan power supply line, the capacitor Cr is also required to increase
reliability.
*2 The Hall element is biased at a constant voltage of approximately 1.05Vfrom the HB pin.
Thus LV8062FA provides a stable Hall output with excellent temperature characteristics.
If the Hall output is needed to adjust the amplitude, use the resistor R1 as shown in the figure.
*3 When the wiring from the Hall output to IC Hall input is long, noise may be carried through the wiring. In this case,
insert the capacitor as shown in the figure.
*4 This pin must be left open if unused.
*5 When a PWM signal seems to be the open collector (a drain) output, please connect suitable pulling up resistance so
that a H/L level is decided.
No.A2072-4/7

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Pin Description
Pin No.
1
Pin name
IN1
Pin voltage
LV8062FA
Description
Hall input pin (+)
3 IN2
-
Hall input pin (-)
2 HB
1.05V (typ) Hall bias output pin
4 SGND
5 OUT1
7 OUT2
0V Signal ground pin
Motor drive output pin
-
6 PGND
8 VCC
9 FG
0V
2.5V to 6.0V
-
Power ground pin
Voltage supply pin
FG pulse output pin
10 PWM
- PWM control input pin
Equivalent circuit
1
3
2
5
7
9
10
No.A2072-5/7