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WSH520 Low voltage Single Coil Hall Effect IC with Complementary Output Drivers Features: Operate from 1.8V to 4.5V supply voltage. On-chip Hall sensor. Internal thermal compensation circuit enable operation in a wide range temperature without loss of sensitivity. Output sinking capability up to 200mA for driving large load. Available in rugged low profile SOT-25 packages. General Description: WSH520 is designed to integrate Hall sensor with complementary output drivers on the same chip, it is suitable for single coil DC brushless motors. It includes a temperature compensated circuit, a differential amplifier, a Hysteresis controller, complementary bi-direction drivers for sinking and driving large current load. WSH520 are rated for operation over temperature range from –20˚ C to 75˚C and voltage ranges from 1.8V to 4.5V. Pin Descriptions: (SOT-25) Name P/I/O Pin# Vcc P 1 Vss P 2 DO O 3 DOB O 4 Description Positive Power Supply Ground Output Pin #2 Output Pin #1 Absolute Maximum Rating (at Ta=25˚ C) Supply Voltage Vcc -------------------------- 5V Magnetic flux density B -------------------------- Unlimited Output ON Current (continuous) Ic -------------------------- 220mA Operating Temperature Range Ta -------------------------- (-20˚C to +75˚C) Storage Temperature Range Ts -------------------------- (-65˚C to +150˚C) Package Power Dissipation Pd -------------------------- 350mw for SOT-25 Winson reserves the right to make changes to improve reliability or manufacturability. ©Winson, April.2003
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WSH520 Electrical Characteristics: (T=+25˚C, Vcc=1.8V to 4.5V) Characteristic Symbol Test Conditions Min Typ Max Units Supply Voltage Vcc ― V 1.8 ― 4.5 Output Saturation Vout(sat) Vcc=3V, Io=150mAV ― 0.6 1.0 Vdrive+Vsink Voltage Output Leakage Ileakage Vcc=3V, B < Brp uA ― <0.110 Current Supply Current Isupply Vcc=3V, Io=150mA mA ― 10 20 Function Block: Winson reserves the right to make changes to improve reliability or manufacturability. ©Winson, April.2003
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WSH520 Magnetic Characteristics: Characteristics Symbol QuantityOperate Point Release Point Hysteresis Window Ordering Information: SOT-25: WSH520-XPD□ Elec. Grade SOT-25: 1: A Grade (70 Gauss) 2: B Grade (100 Gauss) Test Circuit: Bop Brp Bop-BrpTa= -20˚C to +80˚C UnitMin Typ. Max Grade A 35 70Grade B50 100GaussGrade A -70 -35 Grade B -100 -50 Gauss 70 150GaussWinson reserves the right to make changes to improve reliability or manufacturability. ©Winson, April.2003
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WSH520
1. SOT-25:
Package Information:
1. SOT-25
Winson reserves the right to make changes to improve reliability or manufacturability. ©Winson, April.2003
元器件交易网www.cecb2b.com
WSH520
Application Circuit: 1-1. SOT-25
Winson reserves the right to make changes to improve reliability or manufacturability. ©Winson, April.2003
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WSH520 Figure 1. 1-2. SOT-25
Figure 2. IV-Curve Isupply vs Operation Voltage252015mAIsupply105022.53Operation Voltage3.54 Winson reserves the right to make changes to improve reliability or manufacturability. ©Winson, April.2003
