FT3107T Motor Controller Datasheet

FT3107T Datasheet, PDF, Equivalent


Part Number

FT3107T

Description

Three Phase Sensorless BLDC Motor Controller

Manufacture

Fortior

Total Page 10 Pages
Datasheet
Download FT3107T Datasheet


FT3107T
` FT3107T
Three Phase Sensorless BLDC Motor Controller
Description
The FT3107T is a Three Phase sensorless BLDC Motor
controller. It provides several drive modes (BLDC,
Pseudo-BLDC, Pseudo-SINE, Narrow BLDC) with
constant/variable lead angle intended for a wide range of
motor characteristics. Open/Closed loop speed adjustment
can be achieved through either direct-PWM or analog
voltage or frequency control, initiated by soft-start. Speed
indicator is provided through a Frequency Generator output,
generating digital pulse with a configurable frequency
proportional to the speed of the motor.
Protection functions of FT3107T are comprehensive
including lock protection and automatic recovery, thermal
shutdown and current limit protections. These prevent the
control circuits and the motor from being damaged,
particularly under stressed applications and demanding
environments.
Feature
Sensorless BLDC/Pseudo-BLDC
/Pseudo-SINE/Narrow BLDC drives
Two speed adjustment methods can be selected
(direct-PWM and analog voltage control)
Intelligent Soft-start
Constant/Variable lead angle control
Open/Closed loop speed adjustment can be selected
(direct-PWM and analog voltage control).
FG (Frequency Generator) output
Current limit protection
Built-in lock protection and automatic recovery circuit
Built-in thermal shutdown protection (TSD)
FR
TM
BRAKE
SPEED/PWM
Block Diagram
VDD5 VREG10
FG
LDO
VCC
VSS
ADC
xa
TSD
UVLO
BEMF
High Side
Driver
Low Side
Driver
UH
VH
WH
UL
VL
WL
ILIMIT
ISENSE
ADC
Lock
Protection
EMF_U EMF_V EMF_W
www.fortiortech.com

FT3107T
` FT3107T
Pin Assignment
VSS
VDD5
TM
BRAKE
SPEED/PWM
FR
ILIMIT
FG
EMFW
EMFV
1 20
2 19
3 18
4 17
5 16
6 15
7 FT 3107 14
8 13
9 12
10 11
VCC
VREG10
UH
VH
WH
UL
VL
WL
ISENSE
EMFU
Pin Configuration
PIN
PIN Name
NO.
1 VSS
Type
GND
Signal and power ground.
Description
2 VDD5
3 TM
O Digital power output, LDO DC5V output for digital signal.
I TEST PINFloating or connect to VDD5
4 BRAKE
I Brake signal input, Low: Brake. Internal pull-up.
5 SPEED/PWM I Speed control input
6 FR
I Motor rotation direction input
7 ILIMIT
I Current limit analog input
8 FG
O Open drain. Frequency Generator, speed signal output.
9 EMF_W
I Phase W back EMF.
10 EMF_V
I Phase V back EMF.
11 EMF_U
I Phase U back EMF.
12 ISENSE
I Current limit & Lead angle analog input
13 WL
O Low side phase W NMOS driver
14 VL
O Low side phase V NMOS driver
15 UL
O Low side phase U NMOS driver
16 WH
O High side phase W PMOS driver
17 VH
O High side phase V PMOS driver
18 UH
O High side phase U PMOS driver
19 VREG10
O LDO output
20
VCC
POWER Power supply
REV 1.0
2 / 10
FT-DS-021A


Features ` FT3107T Three Phase Sensorless BLDC M otor Controller Description The FT3107 T is a Three Phase sensorless BLDC Moto r controller. It provides several drive modes (BLDC, Pseudo-BLDC, Pseudo-SINE, Narrow BLDC) with constant/variable le ad angle intended for a wide range of m otor characteristics. Open/Closed loop speed adjustment can be achieved throug h either direct-PWM or analog voltage o r frequency control, initiated by soft- start. Speed indicator is provided thro ugh a Frequency Generator output, gener ating digital pulse with a configurable frequency proportional to the speed of the motor. Protection functions of FT3 107T are comprehensive including lock p rotection and automatic recovery, therm al shutdown and current limit protectio ns. These prevent the control circuits and the motor from being damaged, parti cularly under stressed applications and demanding environments. Feature  S ensorless BLDC/Pseudo-BLDC /Pseudo-SINE /Narrow BLDC drives  Two speed adjustment methods can be selecte.
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