The A5947GLPTR-T is a three-phase sensorless fan driver IC with integrated sinusoidal drive for reduced audible noise and vibration, designed for fan applications without Hall sensors. It is packaged in a 20-lead TSSOP with an exposed thermal pad, measuring 5 mm × 5 mm × 0.90 mm. The device supports EEPROM-configurable speed curves, I2C serial control, PWM or analog speed input, and includes features such as lock detection, soft start, overcurrent and overvoltage protection. It operates from -40 to 105 °C and includes a 3.3 V / 20 mA linear regulator and FG speed output. The part is rated for 3.6 A output current and withstands up to 40 V supply voltage.
The A5947 simplifies the design of sensorless automotive fan systems with its integrated closed-loop speed control, sinusoidal drive, and programmable speed curves. Eliminates the need for a microcontroller and reduces PCB space.
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SENSORLESS SINUSOIDAL BLDC MOSFE Product overview: A5947GLPTR-T from Allegro MicroSystems is a Motor Driver IC for embedded motor control, robotics, automation equipment, haptic feedback, pumps, fans, and industrial motion systems. It is useful for engineers and buyers comparing datasheets, replacement parts, BOM lines, package options, lifecycle status, and procurement availability. Key searchable attributes include key electrical ratings, package details, and application requirements. Search-friendly keywords include motor driver IC, H-bridge, stepper motor, PWM control, motion control, Motor Drivers, Controllers. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 744-A5947GLPTR-T can be used for catalog matching and distributor lookup.
SENSORLESS SINUSOIDAL BLDC MOSFE
SENSORLESS SINUSOIDAL BLDC MOSFE
SENSORLESS SINUSOIDAL BLDC MOSFE
SENSORLESS SINUSOIDAL BLDC MOSFE
| Allegro MicroSystems Inc. | ERSAELECTRONICS PTE. LTD. | DigiKey | Shenzhen Shengyu Electronics Technology Limited | |
|---|---|---|---|---|
| Product Category | DC Motor Drives | DC Motor Drives | DC Motor Drives | Motor Controllers |
| Product Number | A5947GLPTR-T | 744-A5947GLPTR-T | 620-A5947GLPTR-TCT-ND | A5947GLPTR-T |
| Product Name | Three-Phase Sensorless Fan Driver IC | Motor Driver IC | Motor Drivers, Controllers | Integrated Circuits (ICs) - Power Management (PMIC) - Motor Drivers, Controllers |
| Motor / System | DC Brushless | DC Brushless | ||
| Configuration | PCB Mount | PCB Mount; "20-TSSOP (0.173"", 4.40mm Width) Exposed Pad" | ||
| PC-Based Bus | Analog, I2C, PWM | |||
| Operating Temperature | -40 C (-40 F) | -40 to 105 C (-40 to 221 F) |
