ATS137B-WLA-B

ATC Single Hall Effect Switch Features - 3.5V to 20V DC operation voltage - Temperature compensation - Wide operating voltage range - Open-Collector pre-driver - 25mA maximum sinking output current. - Reverse Polarity Protection ATS137 General Description ATS137 is an switched Hall-Effect IC which is for contactless switching applications. The device includes an on-chip Hall voltage generator for magnetic sensing, an amplifier that amplifies the Hall voltage, a schmitt trigger to provide switching hysteresis for noise rejection, and an open-collector output. The bandgap regulator allows a wide operating voltage range. ATS137 is rated for operating temperature range from -20°C to 85°C and voltage range from 3.5V to 20V. Applications - VCD/DVD loader, CD/DVD ROM - Cover detector - Speed measurement - Home appliances - Home safety Ordering Information ATS137 X - X X X - X Magnetic Characteristics A or B Single Hall-effect Switch Wafer Body Blank or A~Z : if necessary to specify Package P: SIP3 W: SOT23 Lead L : Lead Free Blank: Normal Packing Blank : Tube or Bulk A : Tape & Reel Typical Circuit 3.5V ~20V Vcc RL ATS 137 Vss DO Digital Output This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sale of the product. Rev.A5 Jul 14, 2004 1/7 ATC Single Hall Effect Switch Functional Block Diagrams Vcc 1 ATS137 Regulator Hall plate Amp 3 DO 2 Vss Pin Descriptions 137 2 Top view 137 1 : Vcc 1 3 2 : Vss 3 : DO 1 2 3 Name Vcc Vss DO P/I/O P P O Pin # 1 2 3 Description Positive Power Supply Ground Digital Output Anachip Corp. www.anachip.com.tw 2/7 Rev. A5 Jul 14, 2004 ATC Single Hall Effect Switch Absolute Maximum Ratings Characteristics Supply voltage Reverse Vcc Polarity Voltage Magnetic flux density Output OFF Voltage Output “on” current Continuous Operating temperature Storage temperature Maximum Junction Temp. SIP-3L Package Power Dissipation SOT23-3L ( at Ta=25oC ) Symbol VCC VRCC B Vce Ic Ta Ts Tj Pd (Ta=+ 25°C) Test Conditions — Vcc=14V, Ic=20mA Vce=14V, Vcc=14V Vcc=20V, Output Open Vcc=14V, RL=820Ω, CL=20pF Vcc=14V, RL=820Ω, CL=20pF Min 3.5 Typ 300