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| WSH130 Operates from 2.4V to 26V supply voltage with reverse voltage protection Operates with magnetic fields from DC to 15kHz On-chip Hall Sensor On-chip temperature compensation circuitry minimizes shifts in on and off points and hysteresis over temperature and supply voltage Ideal sensor for speed measurement, revolution counting, positioning, and DC brushless motors Specifications : Switching type: latch or non-latch type (S pole) Latch: On(L) with magnetic South pole and Off (H) with North pole Non-Latch: On (L) with magnetic South pole and Off(H) without magnetic field Functional Description : WSH130 is designed to integrate Hall sensor with output driver 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 and a open-collector output driver capable of sinking up to 20mA current load. An on-chip protection resistor 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. WSH130 are rated for operation over temperature range from -40 C to 125 C and voltage ranges from 2.4V to 26V. Name Vdd Gnd Vout P/I/O P O O Pin# Description Positive Power Supply Ground Output Pin Winson reserves the right to make changes to improve reliability or manufacturability. (c)Winson, 2005/8/25 WSH130 Supply Voltage Output breakdown Voltage Magnetic flux density Vcc -------------------------26V Vout(breakdown) ---------------- 30V B -------------------------- Unlimited ----------------------------------------------------------------------------------------------------26V 25mA (-40C to +125C) (-65C to +150C) 500mw Reverse Protection Voltage Vr Output ON Current (continuous) Ic Operating Temperature Range Storage Temperature Range Package Power Dissipation Characteristic Supply Voltage Output Saturation Voltage Output Leakage Current Supply Current Output Rise Time Output Falling Time Ta Ts Pd -------------------------- (T=+25C, Vcc=2.4V to 26V) Symbol Test Conditions Min Typ Max Units Vcc V Vout Vcc=12V,Ic=10mA V (sat) B > Bop Ileakage Vcc=12V, B WSH130 Characteristic Operating Point Symbol Bop Grade A B NL Min. Typ. + 30 + 50 Max. + 50 +70 + 150 Unit Guass Guass Guass Guass Guass Guass Release Point Brp A B NL -50 -70 0 - 30 -50 30 200 Hysteresis Window Bhys Guass Winson reserves the right to make changes to improve reliability or manufacturability. (c)Winson, 2005/8/25 WSH130 Winson reserves the right to make changes to improve reliability or manufacturability. (c)Winson, 2005/8/25 WSH130 Fan Application: Magnetic detector: Winson reserves the right to make changes to improve reliability or manufacturability. (c)Winson, 2005/8/25 |
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