LV8162TT [SANYO]
Fan Motor Driver Single-Phase Full-Wave Driver; 风扇马达驱动单相全波驱动
| 型号： | LV8162TT |
| 厂家： | 
SANYO SEMICON DEVICE |
| 描述： | Fan Motor Driver Single-Phase Full-Wave Driver |
| 文件： | 总7页 (文件大小：222K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Ordering number : ENA1978
Bi-CMOS IC
Fan Motor Driver
LV8162TT
Overview
Single-Phase Full-Wave Driver
The LV8162TT is a driver IC for single-phase fan motors that achieves low-noise operation by using BTL linear output
system. As it has a variable speed function in response to the external PWM input signal, it is best suited for driving CPU
cooling fans in notebook PCs and other applications that require low power consumption, low noise, and a variable speed
function.
Functions
• Single-phase full-wave operating by BTL output
• Hall bias output pin
• Standby mode and quick start function
• Speed control available by PWM pin
• Built-in lock protection and automatic return circuit
• Start auxiliary function (50% futy start)
• FG (rotation speed detection) signal pin and RD (lock detection) signal pin
• Built-in thermal-shutdown (TSD) circuit
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
V
Maximum supply voltage
V
I
max
7
CC
Maximum output current
max
0.7
A
OUT
OUT pin output withstand voltage
HB pin maximum output current
PWM pin withstand voltage
FG/RD pin maximum sink current
FG/RD pin output withstand voltage
Allowable dissipation
V
max
7
V
OUT
I
max
10
mA
V
HB
V
I
max
7
PWM
/I
max
5
7
mA
V
FG RD
VFG/VRD max
Pd max1
Pd max2
Topr
Independent IC
200
mW
mW
°C
°C
With specified substrate *1
*2
400
Operating temperature
Storage temperature
-30 to +95
-55 to +150
Tstg
Continued on next page.
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
"standard application", intended for the use as general electronics equipment. The products mentioned herein
shall not be intended for use for any "special application" (medical equipment whose purpose is to sustain life,
aerospace instrument, nuclear control device, burning appliances, transportation machine, traffic signal system,
safety equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives
in case of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any
guarantee thereof. If you should intend to use our products for new introduction or other application different
from current conditions on the usage of automotive device, communication device, office equipment, industrial
equipment etc. , please consult with us about usage condition (temperature, operation time etc.) prior to the
intended use. If there is no consultation or inquiry before the intended use, our customer shall be solely
responsible for the use.
Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate
the performance, characteristics, and functions of the described products in the independent state, and are not
guarantees of the performance, characteristics, and functions of the described products as mounted in the
customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent
device, the customer should always evaluate and test devices mounted in the customer
's products or
equipment.
92111 SY 20110901-S00001 No.A1978-1/8
LV8162TT
Continued from preceding page.
* 1: Specified substrate : 20mm × 10mm × 0.8mm, Paper phenol
* 2: Tj max=150°C must not be exceeded
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.
Recommended Operating Conditions at Ta = 25°C
Parameter
Recommended supply voltage
Operating supply voltage range
Hall input voltage range
Symbol
Conditions
Ratings
Unit
V
V
V
5.0
CC
op
2.0 to 6.0
V
CC
VICM
0.2 to V -1.2
CC
V
PWM input frequency
f
IN
20 to 60
kHz
PWM
Electrical Characteristics at Ta = 25°C, V
CC
= 5V
Ratings
typ
Parameter
Symbol
Conditions
Unit
min
0.95
max
1.6
Circuit current
HB pin voltage
I
I
1.3
10
mA
μA
V
CC
st
30
1.2
0.23
0.15
6
CC
V
V
V
V
When IREG = 5mA
0.9
1.03
0.16
0.1
HB
OUT pin high voltage
H
L
V
O
O
OUT pin low voltage
I
= 250mA, source + sink
V
O
Hall amplifier input offset voltage
Hall amplifier voltage gain
OFS
-6
44
mV
dB
V
IN
GH
V
45.5
47
PWM pin input low level
L
VSET = 0.5V
0
V
×0.2
PWM
CC
PWM pin input high level
V
H
VSET = 0.5V
V
×0.8
6
V
PWM
CC
FG/RD pin low voltage
V
L/V
L
ICPRTO = ICPC/ICPD
0.3
10
V
FG RD
FG/RD pin leakage current
FG comparator hysteresis width
Lock detection output ON time
Lock detection output OFF time
Lock detection output ON/OFF ratio
Thermal shutdown operating temperature
Thermal shutdown hysteresis width
I
L/I
L
μA
sec
μsec
V
FG RD
FGHYS
LT1
VSET = 0.5V
±8
0.6
6
±16
0.8
8
0.4
4
LT2
I
= 3mA
= 5V
FG
LRTO
TSD
V
8
10
12
FG
Design guarantee *
Design guarantee *
180
30
°C
°C
ΔTSD
* Design guaranteed value (No measurement is performed.)
Package Dimensions
unit : mm (typ)
3375
Pd max -- Ta
0.5
0.4
0.3
0.2
3.0
Specified board (20 × 10 × 0.8mm3, paper phenol)
12
Independent IC
0.18
1
2
0.1
0
0.125
(0.25)
0.5
0.09
0.2
--30 --20
0
20
40
60
80
100
120
Ambient temperature, Ta -- °C
SANYO : MSOP12(150mil)
No.A1978-2/8
LV8162TT
Pin Assignment
IN1
HB
1
2
3
4
5
6
12 RD
11 FG
IN2
10 PWM
OUT1
(NC)
GND
9
8
7
V
CC
(NC)
OUT2
Top view
Truth value table
IN1
IN2
PWM
OUT1
OUT2
H
FG
RD
L
Mode
H
L
*
Drive (OUT2 → OUT1)
Regeneration
H
L
L
L
OFF
L
OFF
OFF
Lock protection. See *1
H
L
*
H
L
L
L
Drive (OUT1 → OUT2)
Regeneration
L
H
L
L
L
OFF
L
OFF
L
Lock protection. See *1
Standby mode. See *2
*
L
OFF
*1: If no FG pulse switching occurs while the lock detection output is on, the IC enters lock protection mode.
*2: If “lock protection operation + PWM input low time” is 750µs or longer is satisfied, the IC enters standby mode.
The IC enters standby mode at a low time of 750µs only when the IC is started with low PWM input when the power is turned on.
Block Diagram
LOCK
DETECTION
OSC
IN1
HB
1
2
3
4
5
6
12 RD
11 FG
TSD
CONTROL
HB
V
CC
IN2
10 PWM
OUT1
(NC)
GND
9
8
7
V
CC
(NC)
OUT2
No.A1978-3/8
LV8162TT
Application Circuit Example
IN1
1
2
3
4
5
6
RD 12
FG 11
RDOUT
FGOUT
PWMIN
HB
H
IN2
PWM 10
OUT1
(NC)
GND
V
9
8
7
CC
(NC)
OUT2
*1 [Power stabilization capacitor]
Be sure to use the power stabilization capacitor with a capacitance of 1µF or higher. It cannot be removed.
The V and GND are connected using a pattern that is think and short as possible.
CC
When a reverse-connection breakdown prevention diode is used and the supply voltage rises due to a coil kickback or
other cause, increase the capacitance of the capacitor or use a zener diode between the power supply and GND to ensure
that the absolute maximum rating is not exceeded.
This IC performs synchronous rectification for reducing heat generation and improving efficiency. The synchronous
rectification can return the current to the power supply side under certain operating conditions.
• When the output duty drops suddenly
• When the PWM input frequency is low
The amount of increase in the supply voltage varies depending on whether a reverse-connection breakdown prevention
diode is used, on the size of the power supply capacitor, and fan type, and so rhese factoes must be fully taken into
consideration.
When the supply voltage rises, in the same way as above, increase the capacitance of the capacitor or use a zener diode
between the power supply and GND to ensure that the absolute maximum rating is not exceeded.
*2 [HB pin]
Constant-voltage output pin. This is used for Hall element bias purposes.
If the HB pin is not needed because the bias current to the Hall element is supplied from the power supply, pull this pin
down to GND with a resistor of about 1kΩ.
The power supply bias and HB pin bias cannot be used at the same time.
To adjust the amplitude of the Hall element, insert a resistor between the Hall element and GND.
*3 [IN1 and IN2 pins]
Hall element signal input pin.
The wiring must be made as short as possible to prevent carring of noise.
If noise is carried, insert a capacitor between IN1 and IN2 pins.
The Hall input level must satisfy the following condition:
Difference voltage between IN1 and IN2 > Operating voltage / Hall amplifier gain + Hall amplifier input offset.
No.A1978-4/8
LV8162TT
*4 [PWM pin]
Speed control signal input pin.
The PWM pin is pulled up with a 500kΩ resistor inside the IC.
The 500kΩ is used for setting full speed when the PWM pin is open, and if speed control is to be performed by open
collector (open drain) input, it is necessary to pull up the pin using a resistor of an appropriate value.
If speed control is performed using a push-pull input, a pull-up resistor is not required.
When the speed control is performed using the open collector input above, or when push-pull input is used and no
pull-up resistor is used, the IC can be used without a sequence (power supply and PWM input can be turned on in any
order).
It is recommended that a resistor of 1kΩ or more is connected in series to protect the pin against misconnection such as
ground open and reverse connection.
*5 [FG pin]
Rotatinal speed detection pin.
This is open drain output that can detect the rotational speed by the FG output in response to the ohase switching signal.
This pin is held off when in standby mode.
Keep this pin open when it is not to be used.
It is recommended that a resistor of 1kΩ or more is connected in series to protect the pin against misconnection such as
ground open and reverse connection.
*6 [RD pin]
Lock detection pin.
This is open drain output that is low during rotation, off when lockup is detected, and low when in standby mode.
Keep this pin open when it is not to be used.
It is recommended that a resistor of 1kΩ or more is connected in series to protect the pin against misconnection such as
ground open and reverse connection.
*7 [Low current consumption during standby]
The fan motor controlled using this IC can be set to a current consumption of 10µA (room temperature, typ.) when in
standby mode. However, note that it will not become 10µA under any of the following conditions.
• When the Hall element bias current is fed from the power supply
→ The current flowing to the Hall element is increased
• When connecting a pull-up resistor to the PWM pin.
→ Because the PWM pin must be set to low when in standby mode, the current flowing to the pull-up resistor is
increased.
• When using an RD pin.
→ Because the RD pin is held low when in standby mode, the current flowing to the pull-up resistor is increased.
No.A1978-5/8
LV8162TT
Timing Chart
Standby/Opearte switchover
VCC
TSLP
T
SLP
PWM
FG
HB
IN2
IN1
Active
Active
Standby
Active
Waiting for FG pulse
LT1
Standby
*1 TSLP=750µs(Typ)
*2 If the PWM signal is held low during the TSLP period and no FG signal switching occurs during the LT1 period, the
IC enters standby mode.
Only when the power is turned on, if the PWM signal is held low during the TSLP period, the IC enters standby
mode.
*3 The FG pin is off and the RD pin is low in standby mode.
Lock protection
Fan conetrained
Fan constraint released
IN1
IN2
OUT1
OUT2
FG
RD
Power ON
FG detection
Power OFF
Power ON
Waiting for FG pulse
LT1
Lock protection
Reboot
LT2
*1 Both OUT1 and OUT2 are low when lock protection mode is established.
*2 In the lock protection period, RD is set to off. After lock protection mode is released, RD is set to low when FG signal
is switched (OFF → L or L → OFF)
*3 If PWM is held low for a period longer than the TSLP when lock protection mode is established, the IC enters standby
mode.
*4 Driving starts at 50% duty cycle when the power is turned on, lock protection mode is released, or the IC is returned
from standby mode. (period during which FG switches 5 or 6 times)
No.A1978-6/8
LV8162TT
SANYO Semiconductor Co.,Ltd. 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 Co.,Ltd.
products described or contained herein.
SANYO Semiconductor Co.,Ltd. strives to supply high-quality high-reliability products, however, any and all
semiconductor products fail or malfunction with some probability. It is possible that these probabilistic failures or
malfunction could give rise to accidents or events that could endanger human lives, trouble that could give rise
to smoke or fire, or accidents that could cause damage to other property. When designing equipment, adopt
safety measures so that these kinds of accidents or events cannot occur. Such measures include but are not
limited to protective circuits and error prevention circuits for safe design, redundant design, and structural
design.
In the event that any or all SANYO Semiconductor Co.,Ltd. products described or contained herein are
controlled under any of applicable local export control laws and regulations, such products may require the
export license from the authorities concerned in accordance with the above law.
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Any and all information described or contained herein are subject to change without notice due to
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Upon using the technical information or products described herein, neither warranty nor license shall be granted
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This catalog provides information as of September, 2011. Specifications and information herein are subject
to change without notice.
PS No.A1978-7/7
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