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US90AEVK Electronic IC Chips power ic chip 24V Hall IC Fan Driver
US90AEVK Electronic IC Chips power ic chip 24V Hall IC Fan Driver
Specifications
Model Number :
US90AEVK
Certification :
new & original
Place of Origin :
original factory
MOQ :
20pcs
Price :
Negotiate
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
Description

US90A / US91A

24V Hall IC Fan Driver

Features and Benefits 

  • Low cost 
  • High sensitivity Hall Sensor 
  • Locked rotor protection and auto-restart 
  • Power-efficient CMOS and power MOSFETs 
  • Built-in output protection clamping diode 
  • Integrated tachometer (US90A) or alarm (US91A) signal output 
  • 2-coil fan driver with FG/RD output in 4-pin VK / VA and 8-pin narrow SOIC packages (all RoHS Compliant)

Application Examples 

  • 12V/24V fans 
  • Peak current up to 500mA

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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Product tags

fan driver ic

,

pci slot fan

,

pwm fan controller ic
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US90AEVK Electronic IC Chips power ic chip 24V Hall IC Fan Driver

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Product Detail
Model Number :
US90AEVK
Certification :
new & original
Place of Origin :
original factory
MOQ :
20pcs
Price :
Negotiate
Payment Terms :
T/T, Western Union, Paypal
Contact Supplier
US90AEVK Electronic IC Chips power ic chip 24V Hall IC Fan Driver

ChongMing Group (HK) Int'l Co., Ltd

Active Member
3 Years
shenzhen
Since 2008
Business Type :
Distributor/Wholesaler
Main Products :
Flash Memory IC Chip, Programmable IC Chip, Computer IC Chips
Total Annual :
5000000-7000000
Employee Number :
80~100
Certification Level :
Active Member
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