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. 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 Winson reserves the right to make changes to improve reliability or manufacturability. ©Winson Semiconductor Corp. 2005/8/12 1 WSH410 Pin Descriptions: SIP-5L Name P/I/O Pin# Vcc P 1 OUT1 O 2 OUT2 O 3 FG O 4 Vss P 5 Description Positive Power Supply Output Pin #1 Output Pin #2 Frequency Generator Ground Absolute Maximum Rating (at Ta=25˚ C) Supply Voltage Vcc -------------------------- 20V Output / FG breakdown Voltage Vout/Vfg --------------------- 25V Magnetic flux density B -------------------------- Unlimited Reverse Protection Voltage Vr -------------------------- 20V Output Current continuous Ic -------------------------- 300mA Hold current Ih -----------------------400mA Peak current Ip ------------------------800mA FG ON Current (continuous) If -------------------------- 20mA Operating Temperature Range Storage Temperature Range Package Power Dissipation Ta -------------------------Ts -------------------------Pd -------------------------- (-20˚C to +125˚C) (-65˚C to +150˚C) 500mw for SIP-4L SIP-5L Electrical Characteristics: (T=+25˚C, Vcc=2.8V to 20V) Characteristic Symbol Test Conditions Min Typ Max Units Supply Voltage Vcc V ─ 2.8 ─ 20 Output Saturation Vout(sat) Vcc=20V, Ic=200mA ─ V 0.2 0.4 Voltage B > Bop FG Saturation Vfg(sat) Vcc=20V, If=10mA 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 ─ 14 25 FG Open Output / FG Rising Tr 3.0 Us Vcc=12V, RL=820Ω ─ 10 Time CL=20Pf Output / FG Falling Tf Us Vcc=12V, RL=820Ω ─ 0.3 1.5 Time CL=20Pf Output / FG Time Us △t Vcc=12V, RL=820Ω ─ 0.3 3 Differential CL=20Pf Winson reserves the right to make changes to improve reliability or manufacturability. ©Winson Semiconductor Corp. 2005/8/12 2 WSH410 Function Block: Magnetic Characteristics: Characteristics Symbol Operate Point Bop Release Point Brp Hysteresis Window Ta= -20˚C to +90˚C Min Typ. Max 70 120 Quantity -120 Bop-Brp -70 40 Unit Gauss Gauss 200 Gauss Ordering Information: SIP- 4L: WSH410-XPAN3 SIP- 5L: WSH410-XPCN3 (120 Guass) N:Non-lead Process (120 Guass) Winson reserves the right to make changes to improve reliability or manufacturability. ©Winson Semiconductor Corp. 2005/8/12 3 WSH410 Test Circuit: SIP-4L SIP-5L Winson reserves the right to make changes to improve reliability or manufacturability. ©Winson Semiconductor Corp. 2005/8/12 4 WSH410 Package Information: SIP-4L Winson reserves the right to make changes to improve reliability or manufacturability. ©Winson Semiconductor Corp. 2005/8/12 5 WSH410 SIP-5L Winson reserves the right to make changes to improve reliability or manufacturability. ©Winson Semiconductor Corp. 2005/8/12 6 WSH410 Application Circuit: SIP-4L Figure 1. SIP-5L Figure 2. Winson reserves the right to make changes to improve reliability or manufacturability. ©Winson Semiconductor Corp. 2005/8/12 7