FT3106 Motor Controller Datasheet

FT3106 Datasheet, PDF, Equivalent


Part Number

FT3106

Description

Three Phase Sensorless BLDC Motor Controller

Manufacture

Fortior

Total Page 10 Pages
Datasheet
Download FT3106 Datasheet


FT3106
` FT3106
Three Phase Sensorless BLDC Motor Controller
Description
The FT3106 is a Three Phase sensorless BLDC Motor
controller. Due to its adaptive features and wide
power-supply range capabilities, it is intended to cover a
wide range of motor characteristics, while requiring
minimal tuning from the user. Speed adjustment can be
achieved through either direct-PWM or analog voltage
control. Speed indicator is provided through a Frequency
Generator output, generating digital pulse with its
frequency proportional to the speed of the motor.
Protection functions of FT3106 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
Two speed adjustment methods can be selected
(direct-PWM and analog voltage control)
Lead angle control
FG (Frequency Generator)
Current limit and over current protection
Built-in lock protection and automatic recovery circuit
Built-in thermal shutdown protection (TSD)
Built-in under voltage lock out protection. (UVLO)
Built-in over voltage protection of motor driver
Block Diagram
VDD5 VREG10
FG VCC
F/R
ALIGN
START
BRAKE
PWM
TMOD
FSOURCE
SREF
VTH
LDO
Saw Tooth
Generator
2.5V
RPI
RSF
INP
OPO
ADC
INN
TSD
UVLO
xa
BEMF
VSS
High Side
Driver
Low Side
Driver
UH
VH
WH
UL
VL
WL
ILIMIT
ITRIP
ADC
FAULT
LA
Lock
Protection
EMF_UEMF_V EMF_W
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FT3106
`
Pin Assignment
FT3106
VDD5
INP
INN
OPO
RPI
RSF
SREF
FSOURCE
1
2
3
4
5
6
7
8
FT3106
24 EMF_U
23 EMF_V
22 EMF_W
21 ITRIP
20 ALIGN
19 TMOD
18 VTH
17 ILIMIT
Pin Configuration
PIN
PIN Name
NO.
Type
1 VDD5
O
2 INP
I
3 INN
I
4 OPO
O
5 RPI
I
6 RSF
I
7 SREF
I
8 FSOURCE
I
9 FG
O
10 PWM
I
11 LA
I
12 START
I
13 BRAKE
I
14 F/R
I
15 VSS GND
16 FAULT
I
17 ILIMIT
I
18 VTH
19 TMOD
I
I
20 ALIGN
I
Description
Digital power output, LDO DC5V output for digital signal.
The positive input of the operational amplifier
The negative input of the operational amplifier
The output of the operational amplifier
Initial PWM duty cycle analog input
Initial starting frequency analog input
Analog input voltage for speed adjustment.
Test signal input, connect to GND.
Open drain. Frequency Generator, speed signal output.
PWM input for speed adjustment. Internal pull-up
Lead angle select analog input
Motor start input. High: Start; Low: Free. Internal pull-up
Brake signal input, Low: Brake. Internal pull-up.
Motor rotation direction input
Signal and power ground.
Over current protection input. Internal pull-up
Current limit analog input
Over-temperature protection
Digital input, test mode select.
Choose whether to align the rotor to a known position at first.
High: Aligned; Low: Unaligned
Rev1.0
2


Features ` FT3106 Three Phase Sensorless BLDC Mo tor Controller Description The FT3106 is a Three Phase sensorless BLDC Motor controller. Due to its adaptive feature s and wide power-supply range capabilit ies, it is intended to cover a wide ran ge of motor characteristics, while requ iring minimal tuning from the user. Spe ed adjustment can be achieved through e ither direct-PWM or analog voltage cont rol. Speed indicator is provided throug h a Frequency Generator output, generat ing digital pulse with its frequency pr oportional to the speed of the motor. P rotection functions of FT3106 are compr ehensive including lock protection and automatic recovery, under voltage, ther mal shutdown, current limit and over cu rrent protections. These prevent the co ntrol circuits and the motor from bein g damaged, particularly under stressed applications and demanding environments . Feature  Position sensorless BLDC controller  Two speed adjustment met hods can be selected (direct-PWM and analog voltage control)  Lead.
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