WSH277

Features: 􀁺· Operate from 2.8V to 24V supply voltage.􀁺· On-chip Hall sensor.􀁺· Internal bandgap regulator allows temperature compensated operations and a wide operating voltage range.􀁺· High output sinking capability up to 500mA for driving large load.􀁺...

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SeekIC No. : 004546772 Detail

WSH277: Features: 􀁺· Operate from 2.8V to 24V supply voltage.􀁺· On-chip Hall sensor.􀁺· Internal bandgap regulator allows temperature compensated operations and a wide operating vo...

floor Price/Ceiling Price

Part Number:
WSH277
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/3/28

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Product Details

Description



Features:

􀁺· Operate from 2.8V to 24V supply voltage.
􀁺· On-chip Hall sensor.
􀁺· Internal bandgap regulator allows temperature compensated operations and a wide operating voltage range.
􀁺· High output sinking capability up to 500mA for driving large load.
􀁺· Lower current change rate reduces the peak output voltages during switching.
􀁺· Available in rugged low profile SIP-4L packages.
􀁺· Built-in protection diode for reverse power supply fault.
􀁺· Built-in thermal lock protection and auto-restart function.



Specifications

Supply Voltage                Vcc -------------------------- 24V
Output / FG breakdown  Voltage Vout/Vfg---------- 30V
Magnetic flux density B -------------------------- Unlimited
Reverse Protection Voltage Vr ------------------------ 24V
Output Current continuous Ic ---------------------- 300mA
                         Lock current Ih -------------------- 500mA
                         Peak current Ip ------------------- 800mA
FG ON Current (continuous) If ----------------------- 20mA
Operating Temperature Range Ta ------        (-20°C to +85°C)
Storage Temperature Range    Ts --------     (-65°C to +150°C)
Package Power Dissipation       Pd ------------- 500mw for SIP-4L



Description

WSH277 is designed to integrate Hall sensor with complementary output drivers and frequency generator together on the same chip, WSH277 is suitable for speed measurement, revolution counting, positioning, and DC brushless motors. The WSH277 includes a temperature compensated voltage regulator, a differential amplifier, a Hysteresis controller, two open-collector output drivers capable of sinking 500mA current load. An on-chip protection diode is implemented to prevent reverse power fault. And built-in thermal lock protection and auto-restart function is suitable for super high speed fan. It can replace the function of lock protection and auto restart function. The power will be shutdown automatically at 120°C to prevent the coils be damaged and atuo-restart after cooling down.
The temperature-dependent bias increases the supply voltage of the hall plates and adjusts the switching points to the decreasing induction of magnets at higher temperatures. Subsequently, the open collector output switches to the appropriate state. WSH277 are rated for operation over temperature range from 20° C to 85°C and voltage ranges from 2.8V to 24V.




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