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| WSH413NL Hall Effect Switch IC with Thermal Protection Features: Operate from 2.8V to 40V 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 350mA 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 protection. Output react at South Magnetic Field recover at Zero or North Magnetic Field General Description: WSH413NL is designed to integrate Hall sensor with complementary output drivers on the same chip, It includes a temperature compensated voltage regulator, a differential amplifier, a Hysteresis controller, two Darlington output drivers capable of sinking 350mA current load. An on-chip protection diode is implemented to prevent reverse power fault. And built-in thermal protection circuit can protect system to be burned out due to fault application. 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. This make chip can operate smoothly on high range of ambient temperature. WSH413NL are rated for operation over temperature range from -20 C to 100C and voltage ranges from 2.8V to 40V. Winson reserves the right to make changes to improve reliability or manufacturability. (c)Winson, 2009/5/21 WSH413NL Pin Descriptions: Name P/I/O Vcc P OUT1 O OUT2 O Vss P Pin# 1 2 3 4 Description Positive Power Supply Output Pin #1 Output Pin #2 Ground Absolute Maximum Rating (at Ta=25 C) Supply Voltage Vcc -------------------------Output breakdown Voltage Vout ------------------------Magnetic flux density B -------------------------Reverse Protection Voltage Vr -------------------------Output Current continuous Ic -------------------------Operating Temperature Range Storage Temperature Range Package Power Dissipation Ta -------------------------Ts -------------------------Pd -------------------------- 40V 46V Unlimited 40V 350mA (-20C to +100C) (-65C to +150C) 450mw for SIP-4L Electrical Characteristics: (T=+25C, Vcc=2.8V to 40V) Characteristic Symbol Test Conditions Min Typ Max Units Supply Voltage Vcc V 2.8 40 Output Saturation Vout(sat) Vcc=24V, Ic=200mA V 0.75 1.0 Voltage B > Bop Output Leakage Ileakage Vcc=24V, B < Brp uA <0.1 10 Current Supply Current Isupply Vcc=24V, Output & mA 5 10 FG Open 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 Winson reserves the right to make changes to improve reliability or manufacturability. (c)Winson, 2009/5/21 WSH413NL Function Block: Magnetic Characteristics: Characteristics Operate Point Release Point Hysteresis Window Symbol Bop Brp Bop-Brp Quantity Grade A Garde B Grade A Grade B Min 40 40 10 10 10 Ta= -20C to +100C Typ. Max 100 250 80 230 80 Unit Gauss Gauss Gauss Ordering Information: SIP- 4L: WSH413NL-XPAN N: Non-lead Process Grade Grade: SIP-4L : 1: A Grade (100 Gauss) 2: B Grade (250 Gauss) Winson reserves the right to make changes to improve reliability or manufacturability. (c)Winson, 2009/5/21 WSH413NL Package Information: SIP-4L: Winson reserves the right to make changes to improve reliability or manufacturability. (c)Winson, 2009/5/21 WSH413NL Application Circuit: SIP-4L Figure 1. Put additional resistor between Power line and Pin 1 of W413NL can greatly incerease the surge voltage protection ability of system. Winson reserves the right to make changes to improve reliability or manufacturability. (c)Winson, 2009/5/21 |
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