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| WSH42FB Single Coil Hall Effect IC with Thermal Lock Protection and Auto-Restart Features: Operate from 2.8V to 14V supply voltage. On-chip Hall sensor. Internal bandgap regulator allows temperature compensated operations and a wide operating voltage range. 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,SIP-5L and SOT-25 packages. Built-in Frequency Generator. Built-in protection diode for reverse power supply fault. Prevent the fail situation during lock status or high temperature Built-in thermal lock protection and auto-restart function. General Description: WSH42FB is designed to integrate Hall sensor with two push-pull output drivers and frequency generator together on the same chip, it is suitable for single coil DC brushless motors. It includes a temperature compensated voltage regulator, a differential amplifier, a Hysteresis controller, complementary bi-direction drivers for sinking and driving large current load and an open-collector frequency generator capable of sinking 10mA current load. An on-chip protection diode is implemented to prevent reverse power fault. It also includes coil parts. You can eliminate all the external components for the function of FG and reverse protection diode. And built-in thermal lock protection and auto-restart function will automatically shutdown power at 110C to prevent the coils be damaged during high temperature and auto-restart at 105C. It can replace the function of lock protection and auto-restart at low cost. WSH42FB are rated for operation over temperature range from -20 C to 90C and voltage ranges from 2.8V to 14V. Winson reserves the right to make changes to improve reliability or manufacturability. (c)Winson, 2005/9/23 1 WSH42FB Name Vcc DOB DO Vss P/I/O P O O P Pin# Description Positive Power Supply Output Pin #1 Output Pin #2 Ground Name Vcc DOB DO FG Vss P/I/O P O O O P Pin# Description Positive Power Supply Output Pin #1 Output Pin #2 Frequency Generator Ground Name Vcc Vss FG DO DOB P/I/O P P O O O Pin# Description Positive Power Supply Ground Frequency Generator Output Pin #2 Output Pin #1 Supply Voltage FG breakdown Voltage Magnetic flux density Vcc -------------------------Vfg ------------------------B ------------------------------------------------------------------------------------------------------------------------------ 14V 14V Unlimited 8V 350mA 10mA (-20C to +90C) (-65C to +150C) 350mw for SOT-25 500mw for SIP-4L 500mw for SIP-5L Reverse Protection Voltage Vr Output ON Current (continuous) Ic FG ON Current (continuous) Operating Temperature Range Storage Temperature Range Package Power Dissipation If Ta Ts -------------------------Pd -------------------------- Winson reserves the right to make changes to improve reliability or manufacturability. (c)Winson, 2005/9/23 2 WSH42FB (T=+25C, Vcc=2.8V to 14V) Symbol Test Conditions Min Typ Max Units Vcc V Vout(sat) Vcc=5V, Io=200mA V Vdrive+Vsink Characteristic Supply Voltage Output Saturation Voltage FG Saturation Voltage Output Leakage Current Supply Current Vfg(sat) Vcc=5V, If=5mA B > Bop Ileakage Vcc=5V, B < Brp Isupply Vcc=5V, Io=200mA FG "ON" V < uA mA Characteristics Operate Point Release Point Hysteresis Window Symbol Bop Brp Bop-Brp Quantity Grade A Grade B Grade A Grade B Min Ta= -20C to +80C Typ. Max 35 50 Unit 70 100 Gauss Gauss 150 Gauss -70 -100 -35 -50 70 Winson reserves the right to make changes to improve reliability or manufacturability. (c)Winson, 2005/9/23 3 WSH42FB SIP -4L: WSH42FB-XPA SIP -5L: WSH42FB-XPC SOT-25: WSH42FB-XPD Elec. Grade SIP-4L & SIP-5L: 1: A Grade (70 Gauss) 2: B Grade (100 Gauss) SOT-25: Elec. Grade 1: A Grade (70 Gauss) 2: B Grade (100 Gauss) 1. SIP-4L Winson reserves the right to make changes to improve reliability or manufacturability. (c)Winson, 2005/9/23 4 WSH42FB 2.SIP-5L 3. SOT-25 Winson reserves the right to make changes to improve reliability or manufacturability. (c)Winson, 2005/9/23 5 WSH42FB 1. SIP-4L Winson reserves the right to make changes to improve reliability or manufacturability. (c)Winson, 2005/9/23 6 WSH42FB 2. SIP-5L Winson reserves the right to make changes to improve reliability or manufacturability. (c)Winson, 2005/9/23 7 WSH42FB 3. SOT-25 Winson reserves the right to make changes to improve reliability or manufacturability. (c)Winson, 2005/9/23 8 WSH42FB 1. SIP-4L Figure 1. 2.SIP-5L Figure2. Winson reserves the right to make changes to improve reliability or manufacturability. (c)Winson, 2005/9/23 9 WSH42FB 3-1. SOT-25 Figure 3. 3-2. SOT-25 Figure 4. Winson reserves the right to make changes to improve reliability or manufacturability. (c)Winson, 2005/9/23 10 |
Price & Availability of WSH42FB-XPD2
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