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WSH410
Hall Effect Sensor IC with Complementary Output Drivers and Frequency Generator
Features: Operate from 2.8V to 20V 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 400mA for driving large load. Lower current change rate reduces the peak output voltages during switching. Available in rugged low profile SIP-4L/SIP-5L packages. Built-in protection diode for reverse power supply fault.
General Description: WSH410 is designed to integrate Hall sensor with complementary output drivers and frequency generator together on the same chip, it is suitable for speed measurement, revolution counting, positioning, and DC brushless motors. It includes a temperature compensated voltage regulator, a differential amplifier, a Hysteresis controller, two open-collector output drivers capable of sinking 400mA current load. An on-chip protection diode is implemented to prevent reverse power fault. 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. WSH410 are rated for operation over temperature range from –20˚ C to125˚C and voltage ranges from 2.8V to 20V.
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Name Vcc OUT1 OUT2 Vss
P/I/O P O O P
Pin#
Description Positive Power Supply Output Pin #1 Output Pin #2 Ground
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WSH410
Name Vcc OUT1 OUT2 FG Vss
P/I/O P O O O P
Pin#
Description Positive Power Supply Output Pin #1 Output Pin #2 Frequency Generator Ground
Supply Voltage
Vcc --------------------------
20V
Output / FG breakdown Voltage Vout/Vfg --------------------- 25V Magnetic flux density B -------------------------- Unlimited Reverse Protection Voltage Output Current continuous Hold current Peak current FG ON Current (continuous) Operating Temperature Range Storage Temperature Range Package Power Dissipation Vr Ic Ih Ip If Ta ---------------------------------------------------------------------------------------------------------------------------------------------------20V 300mA 400mA 800mA 20mA (-20˚C to +125˚C) 500mw for SIP-4L SIP-5L Characteristic Supply Voltage Output Saturation Voltage FG Saturation Voltage Output Leakage Current Supply Current Symbol Vcc Vout(sat) Vfg(sat) Ileakage (T=+25˚C, Vcc=2.8V to 20V) Test Conditions Min Typ Max Units V Vcc=20V, Ic=200mA V B > Bop Vcc=20V, If=10mA V B > Bop Vcc=20V, B < Brp UA < MA 3.0 Us Us Us
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Pd --------------------------
Isupply Vcc=20V, Output & FG Open Output / FG Rising Tr Vcc=12V, RL=820 Time CL=20Pf Output / FG Falling Tf Vcc=12V, RL=820 Time CL=20Pf Output / FG Time t Vcc=12V, RL=820 Differential CL=20Pf
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WSH410
Characteristics Operate Point Release Point Hysteresis Window
Symbol
Quantity
Bop www.DataSheet4U.com Brp Bop-Brp -120 -70 40
Ta= -20˚C to +90˚C Min Typ. Max 70 120
Unit
Gauss Gauss
200
Gauss
SIP- 4L: WSH410-XPAN3 SIP- 5L: WSH410-XPCN3
(120 Guass) N:Non-lead Process (120 Guass)
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WSH410
SIP-4L
SIP-5L
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WSH410
SIP-4L
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WSH410
SIP-5L
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WSH410
SIP-4L
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SIP-5L
Figure 2.
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