 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| WSH420 Single Coil Hall Effect IC with Thermal Lock Protection and Auto-Restart Features: Operate from 2.4V to 15V supply voltage. On-chip Hall sensor. Internal bandgap regulator allows temperature compensated operations and a wide operating voltage range. Output sinking capability up to 450mA 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 resistance for reverse power supply fault. Built-in thermal lock protection and auto-restart function. General Description: WSH420 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. An on-chip protection resistor is implemented to prevent reverse power fault. And built-in thermal lock protection and auto-restart function will automatically shutdown power at 120C to prevent the coils be damaged during high temperature and auto-restart at 115C. It can replace the function of lock protection and auto-restart at low cost. WSH420 are rated for operation over temperature range from -20 C to 85C and voltage ranges from 2.4V to 15V. Name Vcc DOB DO Vss P/I/O P O O P Pin# Description Positive Power Supply Output Pin #1 Output Pin #2 Ground Winson reserves the right to make changes to improve reliability or manufacturability. (c)Winson, 2005/9/23 1 WSH420 Supply Voltage Magnetic flux density Reverse Protection Voltage Output Lock Current Operating Temperature Range Storage Temperature Range Package Power Dissipation Vcc -------------------------B Vr Ic Ta ----------------------------------------------------------------------------------------------------15V Unlimited 15V 450mA (-20C to +85C) (-65C to +150C) 500mw for SIP-4L Ts -------------------------Pd -------------------------- Characteristic Supply Voltage Output Saturation Voltage Output Leakage Current Supply Current (T=+25C, Vcc=2.4V to 15V) Symbol Test Conditions Min Typ Max Units Vcc V Vout(sat) Vcc=12V, Io=200mA V Vdrive+Vsink Ileakage Vcc=12V, B < Brp Isupply Vcc=12V, Io=200mA FG "ON" < uA mA Winson reserves the right to make changes to improve reliability or manufacturability. (c)Winson, 2005/9/23 2 WSH420 Characteristics Operate Point Symbol Bop Quantity Min Ta= -20C to +90C Typ. Max 35 50 -35 -50 40 80 Unit Release Point Hysteresis Window Brp Bop-Brp A Grade B C A -50 Grade B -70 C -120 50 70 Gauss 120 Gauss Gauss SIP -4L: WSH420-XPAN Elec. Grade SIP-4L: 1: A Grade (50 Gauss) Elec. Grade 2: B Grade (70 Gauss) 3: C Grade (120 Guass) Winson reserves the right to make changes to improve reliability or manufacturability. (c)Winson, 2005/9/23 3 WSH420 Testing Circuit Winson reserves the right to make changes to improve reliability or manufacturability. (c)Winson, 2005/9/23 4 WSH420 1. SIP-4L Winson reserves the right to make changes to improve reliability or manufacturability. (c)Winson, 2005/9/23 5 WSH420 Application Circuit: Figure 1. Winson reserves the right to make changes to improve reliability or manufacturability. (c)Winson, 2005/9/23 6 |
Price & Availability of WSH420-XPAN3
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |