APX9142 High Sensitivity Hall Effect Sensor IC with Reverse Voltage Protection Features General Description • • • • • • On-chip Reverse Voltage Protection The APX9142 is an integrated Hall Effect Sensor IC designed for electric commutation of DC brushless motor applications. The APX9142 still can operate at as low as 3 volts. The APX9142 is available in low cost TO -92M4 package with 3 different magnetic ranks. • • 4 pin TO-92M Package On-chip Hall Sensor Low Operating Supply Voltage : 3 V High Output Sinking Capability up to 400mA Versatile sensitivity and hysteresis setting Reliable and Rugged Pin Description Build-in Output Zener Diodes to Clamp the Peak Output Voltage • Front View APX9142 1 : V DD High Sensitivilty Hall Effect Senser IC:±50G, 2 : DO ±65G, and ±90G 3 : DOB 4 : GND Applications • • • • 1 2 3 4 Brushless DC Fan Revolution Counting Brushless DC Motor Speed Measurement Ordering and Marking Information M a g n e t ic R a n k A T : | B o p , B rp | < 5 0 G a u s s A : | B o p , B rp | < 6 5 G a u s s B : | B o p , B rp | < 9 0 G a u s s Package C ode E : TO - 92M 4 Tem p. Range E : - 2 0 to 8 5 ° C H a n d l in g C o d e P B : P la s t ic B a g TB : Tape & Box TR : Tape & Reel APX9142 H a n d l in g C o d e Tem p. R ange P ackage C ode M a g n e t ic R a n k A P X 9142 E : APX 9142 XXXXX X X X X X - D a te C o d e ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise customers to obtain the latest version of relevant information to verify before placing orders. Copyright ANPEC Electronics Corp. Rev. A.4 - Apr., 2003 1 www.anpec.com.tw APX9142 Block Diagram Reverse Voltage Protection V DD Temperature Compensated Voltage Regulator APX9142 Hall Element Current Amplifier Zener Diodes Latch Circuit Hysteresis Control Output Buffer 1 DO Output Buffer 2 DOB Sensitivity Control Zener Diodes Gnd Absolute Maximum Ratings Symbol VDD IDD IOUT PD TA TSTG TSOL Parameter Continuous Hold Current Peak (Start Up) Maximum Power Dissipation Operating Ambient Temperature Storage Temperature Range Soldering Temperature (10 Sec.) Parameter VDD Supply Voltage VSAT Output Saturation Voltage V Clamp IDD ILeak a tr b tf b ∆t b Notes a b Rating 20 15 400 600 800 500 -20 to 85 -65 to 150 260 Supply Voltage Supply Current Output Current – Electrical Characteristics Symbol TA = 25°C unless otherwise noted Clamp Output Voltage Supply Current Output Leakage Current Output Rise Time Output Fall Time Switch Time Different Unit V mA mA mW °C TA = 25°C, VDD=12V unless otherwise noted Test Condition Operating IOUT=400mA, B>Bop IOUT=200mA, B>Bop VDD=20V, Output Open VOUT=20V, VDD=20V, B<Brp R L=820Ω,CL=20pF APX9142 Min. Typ. Max. 3 20 600 800 250 350 30 10 15 <0.1 10 0.8 5 0.1 1 2.5 7 Unit V mV V mA µA µs µs µs : No leakage current spike when IC start-up : use Figure 1 Copyright ANPEC Electronics Corp. Rev. A.4 - Apr., 2003 2 www.anpec.com.tw APX9142 Magnetic Characteristics Rank TA = 25°C, VDD=12V unless otherwise noted Maximum Operate Point Bop +40 +55 +80 AT A B Maximum Release Point Brp -40 -55 -80 Unit Gauss Gauss Gauss Test Information APX9142 1 2 3 4 Signal Generator Scope R L2 R L1 V DD Figure 1 : Switching Circuit for Output Rise Time and Fall Time Measurement Application Circuit V DD APX9142 +B -B 1 V DD 2 3 4 L1 L2 C1 Figure 2 Typical DC brushless fan application circuit Copyright ANPEC Electronics Corp. Rev. A.4 - Apr., 2003 3 www.anpec.com.tw APX9142 Typical Characteristics Output Low Voltage vs Output Sink Current 10 0.7 5 0.6 Output Low Voltage (V) Supply Current (mA) Supply Current vs. Supply Voltage 0 -5 -10 -15 0.5 0.4 0.3 0.2 0.1 -20 0 -30 -20 -10 0 10 20 30 50 100 Supply Voltage (V) 150 200 250 300 350 400 Output Sink Current (mA) Switching Point vs. Supply Voltage Supply Current vs. Temperature 9.5 60 IOUT=200mA Vcc=20V 9 Supply Current (mA) Switching Point (G) 40 20 0 -20 8.5 8 7.5 7 6.5 6 -40 5.5 5 -60 0 5 10 15 -20 20 Supply Voltage (V) Copyright ANPEC Electronics Corp. Rev. A.4 - Apr., 2003 0 20 40 60 80 100 120 Temperature (°C) 4 www.anpec.com.tw APX9142 Typical Characteristics (Cont.) Switching Point vs. Temperature 60 Vcc=12V Switching Point (G) 40 20 0 -20 -40 -60 -20 0 20 40 60 80 100 120 Temperature (°C) Copyright ANPEC Electronics Corp. Rev. A.4 - Apr., 2003 5 www.anpec.com.tw APX9142 Package Information TO-92M4 Marking Surface S IC chip C E L L1 A b1 e1 J e 1.35mm 1.75mm D Sensitive Area (0.286 ×0.286mm2) Position of Hall Sensor reference to the top-left of package x= 1.35 ± 0.1mm y= 1.75 ± 0.1mm Dim A b1 C D e e1 E J L L1 S Millimeters Min. 3.60 0.35 0.351 5.17 3.78 1.24 1.50 4.04 14.0 1.342 0.45 Copyright ANPEC Electronics Corp. Rev. A.4 - Apr., 2003 Inches Max. 3.70 0.41 0.411 5.27 3.84 1.30 1.60 4.34 15.0 1.542 0.55 Min. 0.141 0.014 0.014 0.203 0.148 0.049 0.059 0.158 0.549 0.053 0.018 6 Max. 0.145 0.016 0.016 0.207 0.150 0.051 0.063 0.170 0.588 0.060 0.022 www.anpec.com.tw APX9142 Customer Service Anpec Electronics Corp. Head Office : 5F, No. 2 Li-Hsin Road, SBIP, Hsin-Chu, Taiwan, R.O.C. Tel : 886-3-5642000 Fax : 886-3-5642050 Taipei Branch : 7F, No. 137, Lane 235, Pac Chiao Rd., Hsin Tien City, Taipei Hsien, Taiwan, R. O. C. Tel : 886-2-89191368 Fax : 886-2-89191369 Copyright ANPEC Electronics Corp. Rev. A.4 - Apr., 2003 7 www.anpec.com.tw