FT3216 Motor Driver Datasheet

FT3216 Datasheet, PDF, Equivalent


Part Number

FT3216

Description

Three Phase Sensorless BLDC Motor Driver

Manufacture

Fortior

Total Page 2 Pages
Datasheet
Download FT3216 Datasheet


FT3216
FT3216
Three Phase Sensorless BLDC Motor Driver
FT3216
Overview
The FT3216 is a Three Phase sensorless BLDC motor
driver. 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 FT3216 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.
Features
Position sensorless BLDC controller
Selectable soft switch SBLDC (150°) or BLDC
(120°) drives
PWM speed input
Analog speed input
Soft start
FG (Frequency Generator) and RD (Rotation
detection) output
Current limit and internal over current
protection
Lock protection
Built-in thermal shutdown protection (TSD)
Built-in Under Voltage Lock OutUVLO
Low Rds (1.0Ω)
Block Diagram
VDD5
FG
F/R
PWM
START
BRAKE
TMODE
SREF
LDO
EFUSE
Saw Tooth
Generator
SMIN
xa
RD
RSF
RPI
RSD
SKEW
ADC
OCP
TSD UVLO
BEMF
Lock
Protection
OSC vref
VCC
MOT_U
MOT_V
MOT_W
RNF
VSS
REV_Preliminary
2 / 8 www.fortiortech.com

FT3216
1. Pin Assignment
PackageTSSOP20
RPI
F/R
RSD
PWM
SREF
RSF
SKEW
VDD5
SMIN
START
1 20
2 19
3 18
4 17
5 16
6 15
7 FT 3216 14
8 13
9 12
10 11
RD
FG
BRAKE
VSS
RNF
MOTU
MOTV
MOTW
VCC
TMODE
FT3216
Table 1 Pin Configuration
PIN NO. PIN Name Type
1 RPI I
2 F/R I
3
RSD
I
4
PWM
I
5
SREF
I
6
RSF
I
7
SKEW
I
8
VDD5
O
9
SMIN
I
10
START
I
11
TMODE
I
12
VCC
P
13
MOT_W
O
14
MOT_V
O
15
MOT_U
O
16
RNF
O
17
VSS
G
18
BRAKE
I
19 FG O
20 RD O
Description
Initial PWM duty cycle setting.
Motor rotation direction input
Stall protection time setting
PWM input for speed adjustment. Internal pull-up
Analog input voltage for speed adjustment.
Start frequency setting
Soft start time setting
Digital power output, LDO DC5V output for digital signal.
Minimum speed setting
Motor start input. High: Start; Low: Free. Internal pull-up
Test signal input, connect to GND
Power supply
Motor output W
Motor output V
Motor output U
Output current detection pin
Signal and power ground.
Brake signal input, Low: Brake. Internal pull-up.
Open drain. Frequency Generator, speed signal output.
Open drain. Motor rotate detection output.
REV_Preliminary
3 / 8 www.fortiortech.com


Features FT3216 Three Phase Sensorless BLDC Moto r Driver FT3216 Overview The FT3216 is a Three Phase sensorless BLDC motor dr iver. Due to its adaptive features and wide power-supply range capabilities, i t is intended to cover a wide range of motor characteristics, while requiring minimal tuning from the user. Speed adj ustment can be achieved through either direct-PWM or analog voltage control. S peed indicator is provided through a Fr equency Generator output, generating di gital pulse with its frequency proporti onal to the speed of the motor. Protect ion functions of FT3216 are comprehensi ve including lock protection and automa tic recovery, under voltage, thermal sh utdown, current limit and over current protections. These prevent the control circuits and the motor from being dama ged, particularly under stressed applic ations and demanding environments. Feat ures  Position sensorless BLDC contr oller  Selectable soft switch SBLDC (150°) or BLDC (120°) drives  PWM speed input  Analog speed input.
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