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PDF LB11660FV Data sheet ( Hoja de datos )
| Número de pieza | LB11660FV | |
| Descripción | Single-Phase Full-Wave Fan Motor Driver | |
| Fabricantes | Sanyo Semicon Device | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LB11660FV (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
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Ordering number : EN8318
LB11660FV
Monolithic Digital IC
Single-Phase Full-Wave
Fan Motor Driver
Overview
The LB11660FV is a single-phase bipolar drive half-predriver motor driver that can easily implement a direct PWM driver
motor driver circuit with excellent efficiency. The LB11660FV is particularly well suited for the miniature fans used in
servers.
Features
• Single-phase full-wave drive (15V, 1.5A transistors are built in)
Half predriver with integrated high side transistor
• Built-in variable speed function controlled by an external input
The LB11660FV can implement quiet, low-vibration variable speed control using externally clocked high side transistor
direct PWM drive.
• Minimum speed setting pin
• Current limiter circuit (The limit value is determined by Rf; IO = 1A when RF = 0.5Ω)
• Built-in kickback absorption circuit
• Soft switching circuit makes low current consumption, low loss, and low noise drive possible at phase switching
• Built-in HB
• Built-in lock protection and automatic recovery circuits (built-in on/off ratio switching circuit controlled by the supply
voltage)
• FG (speed detection) output
• Built-in thermal protection circuit (design guarantee)
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 (home appliances, AV equipment,
communication device, office equipment, industrial equipment etc.). 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 applications outside the standard applications of our
customer who is considering such use and/or outside the scope of our intended standard applications, please
consult with us 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.
41107 TI PC B8-8730 No.8318-1/8
Datasheet pdf - http://www.DataSheet4U.net/
1 page  
www.DataSheet.co.kr
LB11660FV
*5.Hall sensor input
Lines that are as short as possible must be used to prevent noise from entering the system. The Hall sensor input circuit consists of
a comparator with hysteresis (20mV). We recommend that the Hall sensor input level be at least three times this hysteresis, i.e. at
least 60mVp-p.
*6.PWM oscillator frequency setting capacitor
The PWM oscillator oscillates at f = 23kHz when CP is 200pF and at f = 46kHz when CP is 100pF, and this frequency becomes the
PWM reference frequency.
Note that the PWM frequency is given approximately by the following equation.
f [kHz] ≈ (4.6×106) ÷C [pF]
*7.FG output
This is an open collector output, and a rotation count detection function can be implemented using this FG output, which
corresponds to the phase switching. This pin must be left open if unused.
*8.HB pin
This pin provides a Hall effect sensor bias constant-voltage output of 1.25V.
*9.RMI pin
This pin is the speed control minimum speed setting.
The minimum output duty is set by R3 and R4. Leave R4 open to have the motor stop when the duty is 0%.
Rotation Control Timing Chart
Duty 100%
PWM
duty(%)
Duty 0%
VPWML
VTH(V)
RMI
VPWMH
Minimum
output duty
VTH voltage
RMI voltage
CPWM
Minimum speed
setting rotation
0V
On duty
PWM control variable speed mode Full speed mode
2.5V
0.5V
ON
OFF
No.8318-5/8
Datasheet pdf - http://www.DataSheet4U.net/
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet LB11660FV.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
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