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FT3107T Datasheet Preview

FT3107T Datasheet

Three Phase Sensorless BLDC Motor Controller

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` 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




Fortior

FT3107T Datasheet Preview

FT3107T Datasheet

Three Phase Sensorless BLDC Motor Controller

No Preview Available !

` 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


Part Number FT3107T
Description Three Phase Sensorless BLDC Motor Controller
Maker Fortior
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