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馬達驅動
高集成馬達驅動器
PM39331

馬達驅動

PM39331

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產品描述

3-Phase Sine-wave Sensor-Less Fan Motor Driver

產品特點

PWM Sinusoidal Drive
Three-Phase Sensorless Drive
Adjustable Forced Commutation Frequency (during Startup)
Built-In External Input PWM Controller
Designed With a Quick Start Function
FG, 1/2 FG, 1/3 FG, 2/3 FG Outputs
Low-Power Mode
Built-In Lock Protection and Auto-Restart Function
Built-In Over-Temperature, Over-Current, and Over-Voltage Protection Circuits
Lead-Free Green Device (RoHS Compliant)

應用領域

Motor Driver for Silent Fans Variable Speed Control Fans

產品介紹

產品規格

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產品介紹

PM39331 provides all circuitry for sensorless speed control of three-phase brushless DC motors. The use of a sinusoidal drive method reduces noise. Controller functions include a startup circuit, back-EMF commutation control, pulse-width modulation (PWM) speed control, lock protection, and overtemperature shutdown circuitry, among others. The PM39331 is suitable for game consoles and CPU coolers.

產品規格

Recommended Operating Conditions

拖曳表格以查看完整資訊。

Parameter
Specification
VCC pin supply voltage range
3V to 5.5V
PWM pin input voltage range
0 to Vcc
Ambient temperature
-40°C~105°C
UO/VO/WO pin output current
0mA to 800mA

Key Electrical Characteristics

拖曳表格以查看完整資訊。

Parameter
Condition
Specification
Operating Current
Rotation Mode
3mA (Typ.)
Operating Current
Standby Mode
20uA (Typ.)
PWM input high voltage
VCC=5
1.3V~Vcc+0.3V
PWM input low voltage
-0.3V~1.0V
PWM input frequency
2KHz~50KHz
Output switching frequency
60KHz (Typ.)
Quick start enable time
10mS (Typ.)
Over-temperature shutdown threshold
165°C (Typ.)

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PM39331_Datasheet

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