5V Fan Drive IC

PT395V 5V Single-phase Smart DC Fan IC with 2 Modes PWM speed control

OVERVIEW

The PT395V is a variable speed DC fan motor driver IC with built-in Hall sensor. The built-in dynamic offset cancellation of pre-amplifier stage achieves optimal symmetrical magnetic sensing. The output driver provides a linear drive to eliminate switching noise. This IC is an optimal solution with PWM speed control for Automotive DC brushless fan motor application. The supply voltage range is from 2.2V to 8.0V.

FEATURE

Built-in high sensitivity hall sensor
Linear Soft switching output driver
Speed controllable by Digital PWM or DC voltage two modes, identified automatically
FG open drain output
Quick start
Protections
Motor locked protection and automatic restart
Over thermal protection
Built-in hysteresis comparator
Built-in Zener diode
High balance and low thermal drift magnetic sensing
Low power consumption and high driving efficiency
AEC Q100 qualified(PT395V-A only)

APPLICATIONS

Single coils DC brushless motor

PACKAGE

TSOT26/ DFN8(2x2mm)

PT3953 5V All-in-One Single Coil Smart DC Fan IC with PWM

OVERVIEW

The PT3953 is designed for magnetic actuating using a bipolar magnetic field. The built-in dynamic offset cancellation of pre-amplifier stage achieves optimal symmetrical magnetic sensing. The output driver provides a linear drive to eliminate switching noise. This Hall-effect IC is optimal for notebook cooling fan application with speed controllable by PWM input signal. The supply voltage range is from 1.8V to 8.5V and the output current is 400mA

FEATURE
1.8V~8.5V supply voltage
Single phase full wave
Soft switching output
Motor locked protection & automatic restart
Speed controllable by PWM input signal
ESD protection: 8KV
FG output
Support pre-driver application
Built-in hysteresis comparator
Built-in Zener diode
High sensitivity & low thermal drift magnetic sensing
Low power consumption & high driving efficiency

APPLICATIONS

Single coil 5V brushless DC fan with PWM function
Cooling fan for notebook
Cooling fan for portable device.

PACKAGE

PT3953 /PKG:TSOT26F -6pins

PT3956 5V All-in-One Single Coil Smart DC Fan IC with FG Output

OVERVIEW

The PT3956A is designed for magnetic actuating using a bipolar magnetic field. The built-in dynamic offset cancellation of pre-amplifier stage achieves optimal symmetrical magnetic sensing. The output driver provides a linear drive to eliminate switching noise. This Hall-effect IC is optimal for notebook cooling fan application.The supply voltage range is from 1.8V to 8.5V and the output current is 400mA.

FEATURE

1.8V~8.5V supply voltage
Single phase full wave
Soft switching output
Built-in Hall sensor
Motor locked protection &automatic restart
ESD protection: 8KV
FG output
Support pre-driver application
Built-in hysteresis comparator
Built-in Zener diode
High sensitivity & low thermal drift magnetic sensing
Low power consumption & high driving efficiency

APPLICATIONS

Single coil 5V brushless DC fan
Cooling fan for notebook
Cooling fan for portable device.

PACKAGE

PT39536 /PKG:TSOT25F -5pins