FT3103 Motor Controller Datasheet

FT3103 Datasheet, PDF, Equivalent


Part Number

FT3103

Description

Three Phase Sensorless BLDC Motor Controller

Manufacture

Fortior

Total Page 3 Pages
Datasheet
Download FT3103 Datasheet


FT3103
` FT3103
Three Phase Sensorless BLDC Motor Controller
Description
The FT3103 is a Three Phase sensorless BLDC Motor
controller with built-in driver. Due to its adaptive features
and wide power-supply range capabilities, FT3103 is
intended to cover a wide range of motor characteristics,
while requiring minimal tuning from the user. Two drive
modes are provided, namely SBLDC (quasi-sine-wave)
modulation or BLDC (120°). Speed can be controlled
either by setting the closed speed reference directly or
through the adjustment of PWM duty cycle linearly
proportional to the output speed. Speed indicator is
provided through a Frequency Generator output (FG×3),
generating digital pulse with its frequency proportional to
the speed of the motor.
Protection functions of FT3103 are comprehensive
including lock protection and automatic recovery, under
voltage, thermal shutdown, current limit and over current
protections. These prevent the control circuits and the
motor from being damaged, particularly under stressed
applications and demanding environments.
Feature
Position sensorless BLDC controller
Selectable SBLDC (quasi-sine-wave) or BLDC
(120°) drives
Lead angle control
Closed loop speed control
Direct or PWM duty cycle adjusted (linear) closed
loop speed control
FG (Frequency Generator) and RD (Rotation detection)
output
Current limit and over current protection
Built-in independent operational amplifier
Built-in lock protection and automatic recovery circuit
Built-in thermal shutdown protection (TSD)
Built-in under voltage lock out protection. (UVLO)
F/R
START
BRAKE
PWM
TMOD
FSOURCE
VTH
RPI
RSF
SPEED
INP
OPO
INN
Block Diagram
VDD5 VREG10
LDO
FG RD VCC
VSS
EFUSE
2.5V
ADC
xa
High Side
Driver
Low Side
Driver
ADC
UH
VH
WH
UL
VL
WL
ILIMIT
ITRIP
FAULT
LA
TSD
UVLO
BEMF
Lock
Protection
EMF_U EMF_V EMF_W
www.fortiortech.com

FT3103
FT3103
Pin Assignment
Three Phase Sensorless BLDC Motor controller
INP
INN
OPO
SPEED
RPI
RSF
VDD5
FSOURCE
1
2
3
4
5
6
7
8
FT3103
QFN32
24 EMF_U
23 EMF_V
22 EMF_W
21 ITRIP
20 TMOD
19 VTH
18 ILIMIT
17 FAULT
Pin Configuration
PIN
PIN Name Type
NO.
Description
1 INP I The positive input of the operational amplifier
2 INN I The negative input of the operational amplifier
3
OPO
O The output of the operational amplifier
4
SPEED
I Reference speed analog input
5 RPI I Initial PWM duty cycle analog input
6
RSF
I Initial starting frequency analog input
7
VDD5
O Digital power output, LDO DC5V output for digital signal
8 FSOURCE I Test signal input, connect to GND.
9 RD O Open drain. Motor rotate detection output
10 FG O Open drain. Frequency Generator, speed signal output.
11 PWM I PWM duty cycle input for linear reference speed adjustment. Internal
pull-up.
12 LA I Lead angle select analog input
13 START I Motor start input. High: Start; Low: Free. Internal pull-up
14 BRAKE I Brake signal input, Low: Brake. Internal pull-up
15 F/R I Motor rotation direction input
16
VSS
GND Signal and power ground.
17 FAULT I Over current protection input. Internal pull-up
18 ILIMIT I Current limit analog input
19 VTH I Over-temperature protection
FT3103Q_Datasheet_V1.0
www.fortiortech.com
2


Features ` FT3103 Three Phase Sensorless BLDC Mo tor Controller Description The FT3103 is a Three Phase sensorless BLDC Motor controller with built-in driver. Due to its adaptive features and wide power-s upply range capabilities, FT3103 is int ended to cover a wide range of motor ch aracteristics, while requiring minimal tuning from the user. Two drive modes a re provided, namely SBLDC (quasi-sine-w ave) modulation or BLDC (120°). Speed can be controlled either by setting the closed speed reference directly or thr ough the adjustment of PWM duty cycle l inearly proportional to the output spee d. Speed indicator is provided through a Frequency Generator output (FG×3), g enerating digital pulse with its freque ncy proportional to the speed of the mo tor. Protection functions of FT3103 are comprehensive including lock protectio n and automatic recovery, under voltage , thermal shutdown, current limit and o ver current protections. These prevent the control circuits and the motor from being damaged, particula.
Keywords FT3103, datasheet, pdf, Fortior, Three, Phase, Sensorless, BLDC, Motor, Controller, T3103, 3103, 103, FT310, FT31, FT3, 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)