ChongMing Group (HK) Int'l Co., Ltd
| Payment Terms | T/T, Western Union, Paypal |
| Supply Ability | 7800pcs |
| Delivery Time | 1 day |
| Packaging Details | Please contact me for details |
| Description | Motor Driver On/Off TO-92-4 (flat) |
| Fan Supply Voltage | 30 V |
| Peak Output Current | 500 mA |
| Continuous Output Current | 250 mA |
| FG / RD Output Current | 20 mA |
| Operating Temperature | -40 to 85 °C |
| Junction Temperature | 125 °C |
| Brand Name | |
| Model Number | US90AEVK |
| Certification | new & original |
| Place of Origin | original factory |
View Detail Information
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Product Specification
| Payment Terms | T/T, Western Union, Paypal | Supply Ability | 7800pcs |
| Delivery Time | 1 day | Packaging Details | Please contact me for details |
| Description | Motor Driver On/Off TO-92-4 (flat) | Fan Supply Voltage | 30 V |
| Peak Output Current | 500 mA | Continuous Output Current | 250 mA |
| FG / RD Output Current | 20 mA | Operating Temperature | -40 to 85 °C |
| Junction Temperature | 125 °C | Brand Name | |
| Model Number | US90AEVK | Certification | new & original |
| Place of Origin | original factory | ||
| High Light | electronic integrated circuit ，linear integrated circuits | ||
US90A / US91A
24V Hall IC Fan Driver
Features and Benefits
Application Examples
General Description
The US90A/91A is a one-chip solution for driving two-coil brushless DC cooling fans.
Based on the advanced Melexis CMOS process, the IC contains a Hall-effect sensor, dynamic offset correction and low side output drivers.
Frequency Generator or Rotation Detection is available. The open-drain output makes the connectivity with any external interface such as hardware monitoring or Super I/O IC easier.
These features are combined with the Melexis patented no-VDD design to fit the IC in small 4-pin VK and VA package. The device is also delivered in DC package for automatic assembly.
Absolute Maximum Ratings
| Parameter | Symbol | Value | Units |
| Fan Supply Voltage | VDD | 30 | V |
| Peak Output Current | IOUTp | 500 | mA |
| Continuous Output Current | IOUTc | 250 | mA |
| FG / RD Output Current | IFG (RD) | 20 | mA |
| Operating Temperature Range | TA | -40 to 85 | °C |
| Junction Temperature | TJ | 125 | °C |
| Storage Temperature Range | TS | -55 to 150 | °C |
| Magnetic Flux Density | B | Unlimited | mT |
Exceeding the absolute maximum ratings may cause permanent damage. Exposure to absolute-maximumrated conditions for extended periods may affect device reliability.
Functional Diagram
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Company Details
Business Type:
Distributor/Wholesaler
Year Established:
2008
Total Annual:
5000000-7000000
Employee Number:
80~100
Ecer Certification：
Active Member
CHONGMING GROUP (HK) INT'L CO., LTD. located in Hong Kong and Shenzhen. We are an independent Distributor of Electronic Components,established in 2008. AS a growing fast company, CM GROUP is renowned for its world-class efficiency, excellent services, and extraordinary ability to supply electron... CHONGMING GROUP (HK) INT'L CO., LTD. located in Hong Kong and Shenzhen. We are an independent Distributor of Electronic Components,established in 2008. AS a growing fast company, CM GROUP is renowned for its world-class efficiency, excellent services, and extraordinary ability to supply electron...
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