Datasheet Details
| Part number | THMC40 |
|---|---|
| Manufacturer | Texas Instruments |
| File Size | 233.25 KB |
| Description | Variable Speed 12-VDC Brushless Fan Motor Drivers |
| Datasheet |
 THMC40 Datasheet
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| Part number | THMC40 |
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| Manufacturer | Texas Instruments |
| File Size | 233.25 KB |
| Description | Variable Speed 12-VDC Brushless Fan Motor Drivers |
| Datasheet |
THMC40 Datasheet
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The THMC40 and THMC41 are 2-phase, dc brushless motor (BLM) drive and control devices intended for use with 12-Vdc cooling fans.
Both devices include a high-efficiency PWM drive topology using integrated 0.5-Ω (typical) LDMOS drivers, plus a speed control input stage to provide the industry’s first solution for efficient speed control inside dc cooling fans.
This patented solution eliminates the need for power drive components on the main system board, thus reducing printed-circuit board (PCB) component count, PCB space, and assembly time.
THMC40, THMC41 VARIABLE SPEED 12-VDC BRUSHLESS FAN MOTOR DRIVERS D DC Fan Drive Speed Control With No External Power Drive Stage Required D 11% to 100% PWM Range Adjustable Via 0–2.5 V DC Control Voltage – Suited for Cooling Fan Applications Requiring Variable RPM to Reduce Noise and/or Increase MTBF D Speed Control Capability With Either DC or PWM Input Signal for Greater System-Level Flexibility D Sleep-State Mode to Eliminate External Fan ON/OFF Power Device – Suited for Cooling Fans in Instantly Available PCs D Thermal Shutdown Protection THMC40 .
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| Part Number | Description |
|---|---|
| THMC41 | Variable Speed 12-VDC Brushless Fan Motor Drivers |
| THMC45 | 5-V and 3.3-V DC Brushless Fan Motor Driver |
| THMC10 | Remote/Local Temperature Monitor |