UF2768 DRIVER Datasheet

UF2768 Datasheet, PDF, Equivalent


Part Number

UF2768

Description

THREE-PHASE SINE-WAVE SENSOR-LESS FAN MOTOR DRIVER

Manufacture

UTC

Total Page 8 Pages
Datasheet
Download UF2768 Datasheet


UF2768
UNISONIC TECHNOLOGIES CO., LTD
UF2768
Preliminary
THREE-PHASE SINE-WAVE
SENSOR-LESS FAN MOTOR
DRIVER
DESCRIPTION
The UF2768 provides all the circuitry for sensor-less speed
control of three-phase brushless DC motor. The Sine-wave
Driver Method will be better low-noise. The controller functions
include start-up circuit, back-EMF commutation control, Pulse
Width Modulation (PWM) speed control, lock protection, and
thermal shutdown circuit.
The UF2768 is suitable for both game machine and CPU
cooler that need silent drivers.
FEATURES
* Three-Phase class sin wave driver method
* Three-Phase Full-Wave Sensor-Less Drive Method
* Adjustable Forced Commutation Frequency (for Start-up)
* Built-In External PWM Speed Control
* Built-In Quick Start Function
* FG (Rotation Speed Detection) Output
* Soft Switching Circuit (for Noise Reducing)
* Power Saving Function (PWM Duty Input is 0%)
* Built-In Lock Protection and Auto Restart Function
* Thermal Shutdown Circuit
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
UF2768L-SM2-R
UF2768G-SM2-R
UF2768L-K10-3030-R
UF2768G-K10-3030-R
1
Package
MSOP-10
DFN3030-10
CMOS IC
MSOP-10
DFN3030-10
Packing
Tape Reel
Tape Reel
www.unisonic.com.tw
Copyright © 2018 Unisonic Technologies Co., Ltd
1 of 8
QW-R140-012.a

UF2768
UF2768
MARKING
MSOP-10
Preliminary
CMOS IC
DFN3030-10
PIN CONFIGURATION
FG 1
COM 2
VCC 3
UO 4
FR 5
10 PWM
10
9 OSC
8 GND
7 VO
6 WO
FG 1
COM 2
VCC 3
UO 4
FR 5
10 PWM
9 OSC
8 GND
7 VO
6 WO
MSOP-10
Top View
DFN3030-10
PIN DESCRIPTION
PIN No.
1
2
3
4
5
6
7
8
9
10
PIN NAME
FG
COM
VCC
UO
FR
WO
VO
GND
OSC
PWM
Description
Rotation Speed Output. This is an open-drain output.
Motor Neutral Point Input Pin
Supply Voltage Input Pin.
Driver Output Pin. Output signal for driving motor phase U.
Motor Spin Direction Control Pin.
High Level Input: U V W
Low Level Input: U W V
Driver Output Pin. Output signal for driving motor phase W.
Driver Output Pin. Output signal for driving motor phase V.
Ground Pin.
Start-up Commutation Time Setting. Connect a capacitor to GND to set start-up
commutation time.
PWM Signal Input Pin. Input PWM signal to control rotation speed.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
2 of 8
QW-R140-012.a


Features UNISONIC TECHNOLOGIES CO., LTD UF2768 Preliminary THREE-PHASE SINE-WAVE SENS OR-LESS FAN MOTOR DRIVER  DESCRIPTI ON The UF2768 provides all the circuitr y for sensor-less speed control of thre e-phase brushless DC motor. The Sine-wa ve Driver Method will be better low-noi se. The controller functions include st art-up circuit, back-EMF commutation co ntrol, Pulse Width Modulation (PWM) spe ed control, lock protection, and therma l shutdown circuit. The UF2768 is suita ble for both game machine and CPU coole r that need silent drivers.  FEATUR ES * Three-Phase class sin wave driver method * Three-Phase Full-Wave Sensor-L ess Drive Method * Adjustable Forced Co mmutation Frequency (for Start-up) * Bu ilt-In External PWM Speed Control * Bui lt-In Quick Start Function * FG (Rotati on Speed Detection) Output * Soft Switc hing Circuit (for Noise Reducing) * Pow er Saving Function (PWM Duty Input is 0 %) * Built-In Lock Protection and Auto Restart Function * Thermal Shutdown Circuit  ORDERING INFORMATION.
Keywords UF2768, datasheet, pdf, UTC, THREE-PHASE, SINE-WAVE, SENSOR-LESS, FAN, MOTOR, DRIVER, F2768, 2768, 768, UF276, UF27, UF2, Equivalent, stock, pinout, distributor, price, schematic, inventory, databook, Electronic, Components, Parameters, parts, cross reference, chip, Semiconductor, circuit, Electric, manual, substitute




@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)