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| WSH415 Hall Effect IC with Two complementary Outputs Features: Operate from 2.8V to 28V 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 600mA 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. General Description: WSH415 is designed to integrate Hall sensor with two complementary output drivers 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 600mA 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. WSH415 are rated for operation over temperature range from -20 C to 100C and voltage ranges from 2.8V to 28V. Pin Descriptions: SIP-4L Name P/I/O Pin# Vcc P 1 OUT1 O 2 OUT2 O 3 Vss P 4 Description Positive Power Supply Output Pin #1 Output Pin #2 Ground Absolute Maximum Rating (at Ta=25 C) Supply Voltage Vcc -------------------------Output Voltage Vout -------------------------- 28V 36V Winson reserves the right to make changes to improve reliability or manufacturability. (c)Winson, 2008/9/5 1 WSH415 Magnetic flux density Reverse Protection Voltage Output Current continuous Hold current Peak current Operating Temperature Range Storage Temperature Range Package Power Dissipation B Vr Ic Ih Ip --------------------------------------------------------------------------------------------------------------------------Unlimited 28V 500mA 600mA 800mA (-20C to +100C) (-65C to +150C) 500mw for SIP-4L Ta -------------------------Ts -------------------------Pd -------------------------- Electrical Characteristics: (T=+25C, Vcc=2.8V to 28V) Characteristic Symbol Test Conditions Min Typ Max Units Supply Voltage Vcc V 2.8 28 Output Saturation Vout(sat) Vcc=20V, Ic=200mA V 0.15 0.4 Voltage B > Bop Output Leakage Ileakage Vcc=20V, B < Brp uA <0.1 10 Current Supply Current Isupply Vcc=20V, Output & mA 25 30 Output Rising Time Tr 3.0 us Vcc=12V, RL=820 10 CL=20Pf Output Falling Tf us Vcc=12V, RL=820 0.3 1.5 Time CL=20Pf Output Time us t Vcc=12V, RL=820 0.3 3 Differential CL=20Pf Function Block: Winson reserves the right to make changes to improve reliability or manufacturability. (c)Winson, 2008/9/5 2 WSH415 Magnetic Characteristics: Characteristics Operating Point Release Point Hysteresis Window Symbol Bop Brp Bop-Brp -120 Quantity Min Ta= -20C to +100C Typ. Max 60 120 -60 50 150 Gauss Unit Gauss Ordering Information: SIP- 4L: WSH415-XPAN3 Elec. Grade: 120 Gauss Test Circuit: Winson reserves the right to make changes to improve reliability or manufacturability. (c)Winson, 2008/9/5 3 WSH415 Package Information: Application Circuit: Recommend: 12V: R= 0~200 18V: R=300~500 Winson reserves the right to make changes to improve reliability or manufacturability. (c)Winson, 2008/9/5 4 |
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