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PDF LV8162TT Data sheet ( Hoja de datos )
| Número de pieza | LV8162TT | |
| Descripción | Single-Phase Full-Wave Driver | |
| Fabricantes | Sanyo Semicon Device | |
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Ordering number : ENA1978
LV8162TT
Bi-CMOS IC
Fan Motor Driver
Single-Phase Full-Wave Driver
Overview
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
• Speed control available by PWM pin
• Hall bias output pin
• Built-in lock protection and automatic return circuit
• Standby mode and quick start function
• 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
Maximum supply voltage
Maximum output current
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
Symbol
VCC max
IOUT max
VOUT max
IHB max
VPWM max
IFG/IRD max
VFG/VRD max
Pd max1
Operating temperature
Storage temperature
Pd max2
Topr
Tstg
Conditions
Independent IC
With specified substrate *1
*2
Ratings
Unit
7V
0.7 A
7V
10 mA
7V
5 mA
7V
200 mW
400 mW
-30 to +95
-55 to +150
°C
°C
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
Datasheet pdf - http://www.DataSheet4U.net/
1 page  
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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
Datasheet pdf - http://www.DataSheet4U.net/
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