APX9141. General Description. Pin Description. Applications. Ordering Information. Hall Effect Sensor IC with Reverse Voltage Protection

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1 Hall Effect Sensor IC with Reverse Voltage Protection Features On-chip Reverse Voltage Protection On-chip Hall Sensor Low Operating Supply Voltage : 3 V High Output Sinking Capability up to 4mA Versatile sensitivity and hysteresis setting Reliable and Rugged 4 pin TO-92M Package Applications Brushless DC Fan Revolution Counting Brushless DC Motor Speed Measurement General Description The is an integrated Hall Effect Sensor IC designed for electric commutation of DC brushless motor applications. The still can operate at as low as 3 volts. The is available in low cost TO -92M4 package with 3 different magnetic ranks. Pin Description Front View 1 : V DD 2 : DO 3 : DOB 4 : GND Ordering Information Handling Code Temp. Range Package Code Magnetic Rank Magnetic Rank AT : Bop, Brp < 5 Gauss A : Bop, Brp < 7 Gauss B : Bop, Brp < 1 Gauss D : Bop, Brp < 15 Gauss Package Code E : TO - 92M4 Temp. Range E : -2 to 85 C Handling Code PB : Plastic Bag TB : Tape & Box TR : Tape & Reel 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. 1

2 Block Diagram Reverse Voltage Protection V DD Temperature Compensated Voltage Regulator Hall Element Current Amplifier Latch Circuit Output Buffer 1 DO Hysteresis Control Output Buffer 2 DOB Sensitivity Control Gnd Absolute Maximum Ratings T A = 25 C unless otherwise noted Symbol Parameter Rating Unit V DD Supply Voltage 2 V V BD Output Breakdown Voltage 55 V I DD Supply Current 25 ma I OUT Output Current Continuous Hold Current Peak (Start Up) P D Maximum Power Dissipation 5 mw T A Operating Ambient Temperature -2 to 85 T STG Storage Temperature Range -65 to 15 C T SOL Soldering Temperature (1 Sec.) 26 ma Electrical Characteristics T A = 25 C, V DD =2V unless otherwise noted Symbol Parameter Test Condition Unit Min. Typ. Max. V DD Supply Voltage Operating 3 2 V V SAT Output Saturation Voltage V DD =14V, I OUT =4mA, B>Bop 25 5 mv I DD Supply Current V DD =2V, Output Open 2 25 ma a I Leak Output Leakage Current V OUT =2V, V DD =2V, B<Brp <.1 1 µa b t r Output Rise Time V DD =14V, R L =82Ω.8 5 µs b t f Output Fall Time C L =2pF.1 1 µs t b Switch Time Different µs Note a : No leakage current spike when IC start-up b : use Figure 1 2

3 Magnetic Characteristics T A = 25 C, V DD =14V unless otherwise noted Rank Maximum Operate Point Bop Maximum Release Point Brp AT +5-5 A +7-7 B +1-1 D Unit Gauss Note : For 5cm and below DC fan application, grade A/AT device is recommended to avoid magnetic sensitivity problem. For above 5cm DC fan application, grade B device is acceptable for most cases. Test Information Signal Generator Scope R L2 V DD R L1 C L2 C L1 Figure 1 : Switching Circuit for Output Rise Time and Fall Time Measurement Application Circuit +B V DD -B L1 L2 V DD C1 C2 C3 Figure 2 Typical DC brushless fan application circuit 3

4 Typical Characteristics Supply Current vs. Supply Voltage Output Saturation Voltage vs. Output Current Supply Current (ma) 25 TA=25 C Output Saturation Voltage (mv) Supply Voltage (V) Output Current (ma) Output Low Voltage vs Ambient Temperature Supply Current vs Temperature Output Low Voltage (mv) IOUT=4mA VDD=14V Supply Current (ma) VCC=3V VCC=14V VCC=2V Temperature ( C) Temperature ( C) 4

5 Typical Characteristics (Cont.) Magnetic Switch Points (G) Magnetic Switch Points vs Supply Voltage Bop Brp Supply Voltage (V) IOUT=4mA TA=25 C Magnetic Switch Points (G) Magnetic Switch Points vs Temperature Bop Brp Temperature ( C) IOUT=4mA VDD=14V Power Dissipation (mw) Power Dissipation vs. Ambient Temperature Ambient Temperature ( C) Output Current (ua) Output Breakdown Voltage vs. Current Output Breakdown Voltage Output Voltage (V) 5

6 Package Information TO-92M4 M arking S urface E S IC chip C L A L1 b1 e1 D J e 1.1mm 1.95mm Sensitive Area ( mm2) P osition of H all S ensor reference to the top-left of package x=.85 ±.1m m y= 1.95 ±.1m m Dim Millimeters Inches Min. Max. Min. Max. A b C D e e E J L L S

7 Customer Service Anpec Electronics Corp. Head Office : 5F, No. 2 Li-Hsin Road, SBIP, Hsin-Chu, Taiwan, R.O.C. Tel : Fax : Taipei Branch : 7F, No. 137, Lane 235, Pac Chiao Rd., Hsin Tien City, Taipei Hsien, Taiwan, R. O. C. Tel : Fax :

8 This datasheet has been downloaded from: Datasheets for electronic components.

APM4953. Features. Pin Description. Applications. Ordering and Marking Information. Absolute Maximum Ratings (T A

APM4953. Features. Pin Description. Applications. Ordering and Marking Information. Absolute Maximum Ratings (T A Dual P-Channel Enhancement Mode MOSFET Features Pin Description -3V/-4.9A, R DS(ON) = 53mΩ(typ.) @ V GS = -V R DS(ON) = 8mΩ(typ.) @ V GS = -4.5V S 8 Super High Density Cell Design G 7 Reliable and Rugged