FD2H001BYR-LF

FD2H001Ba/FD2H001BY/FD2H001BH Low-Power Hall Switch General Description FD2H001B is a low-power integrated Hall switch designed to sense the applied magnetic flux density and give a digital output, which indicates the present condition of the magnitude sensed. One example of the applications is the on/off switch in cellular flip-phones. The micro power design is especially suitable for battery-operated systems such as cellular phones or laptop computers, in which power consumption is one major concern. The typical power consumption of FD2H001B is below 10μW at 2.7V. The magnetic switching points are precise and insensitive to process and temperature variations. For FD2H001B, the output will be at the “low” level if the applied magnetic flux density is stronger than the switching threshold. For detailed magnetic flux direction please refer to the figure.3 Features  Micro power consumption  2.4V to 5.5V battery operation  Chopper Amplifier based design: Insensitive to noise and offset caused by process variations, operating temperatures and mechanical stress  Digital output  Programmable output direction  CMOS process  Available in SOT-23L/ TSOT-23L/SIP-3L package This datasheet contains new product information. Advanced Analog Technology 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 sales of the product. Rev. 0.61 1/13 FD2H001Ba/FD2H001BY/FD2H001BH Pin Descriptions SOT-23L/ TSOT-23L Top View VSS 3 CFXXX Name No. I/O Description VDD 1 P Positive supply Q 2 O Open Drain output VSS 3 G Ground Legend: I=input, O=output, I/O=input/output, P=power supply, G=ground 1 2 VDD Q SIP-3L Top View FD01 XXX Name No. I/O Description VDD 1 P Positive supply VSS 2 G Ground Q 3 O Open Drain output Legend: I=input, O=output, I/O=input/output, P=power supply, G=ground 1 2 3 VDD VSS Q This datasheet contains new product information. Advanced Analog Technology 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 sales of the product. Rev. 0.61 2/13 FD2H001Ba/FD2H001BY/FD2H001BH Marking Information SOT-23L/ TSOT-23L CFXXX Lot Number Year Part Number Code Lot Number: Wafer lot number’s last two digits For Example: XX686 86 Year: Production year’s last digit Part Number Code: Part number identification code for this product. SIP-3L FD01 XXX Internal ID Per - Half Month Year Internal ID: Internal Identification Code Per-Half Month: Production period indicator in half month time unit For Example : A → First Half Month of January B → Second Half Month of January C → First Half Month of February D → Second Half Month of February Year: Production year’s last digit This datasheet contains new product information. Advanced Analog Technology 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 sales of the product. Rev. 0.61 3/13 FD2H001Ba/FD2H001BY/FD2H001BH Block Diagram Bias Generator Q Hall Plate Chopper Amplifier Oscillator Sequencer Hysteresis Control Power on reset Figure.1 Functional Descriptions Refer to the block diagram (Figure.1), FD2H001B is composed of the following building blocks:  Bias generator The bias generator provides precise, temperature and process insensitive current sources for both the Hall plate and the chopper amplifier. These current sources in turn guarantee proper operation of the chip and precise switching thresholds under all kinds of environments specified in the specification.  Oscillator + Sequencer The built-in oscillator provides the clock signal, which is taken by the sequencer to determine the periods of the operating phase and the stand-by phase. Typically the operating time is about 60us and the stand-by time is 150ms. Using such a clocking scheme, the average power consumption is almost equal to that in the stand-by phase, which is under 10μW at 2.7V.  Power on Reset Used to detect the power-up ramp and reset the digital circuits to attain correct operation as soon as the power is ready.  Chopper Amplifier To achieve a higher resolution the chopper amplifier structure is adopted in this design. Use of this structure dynamically removes both the offset and flicker noise at the same time.  Hysteresis Control This block determines the switching threshold of the Hall switch in different situations. This datasheet contains new product information. Advanced Analog Technology 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 sales of the product. Rev. 0.61 4/13 FD2H001Ba/FD2H001BY/FD2H001BH Ordering information Part Number Operating Temperature FD2H001BaR-G1 Package Description MOQ o o TSOT23 ±50G (B) 3,000ea/Reel o o SOT23 ±50G (B) 3,000ea/Reel o o SIP-3L ±50G (B) 1,000ea/Bag -20 C to +105 C FD2H001BYR-G1 -20 C to +105 C FD2H001BH-LF -20 C to +105 C Absolute Maximum Ratings Parameter Values Conditions min. max. Unit Ambient Operating Temperature - -40 85 ℃ Storage Temperature - -40 150 ℃ DC Supply Voltage - 2.4 5.5 V Supply Current - - 2.5 mA Magnetic Flux Density - unlimited Gauss 260 ℃ Lead Temperature 10sec - IR Re-flow Soldering Curve ROOM TEMP. 255 ± 5 o C 10 ± 1 sec 150 ± 10 o C 90 ± 30 sec 2~5 o C /sec 2~5 o C /sec SECOND IR-Reflow Soldering Condition Figure. 2 This datasheet contains new product information. Advanced Analog Technology 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 sales of the product. Rev. 0.61 5/13 FD2H001Ba/FD2H001BY/FD2H001BH Operating Conditions Conditions Min. Typ. Max. Unit Supply Voltage - 2.4 2.7 5.5 V Output Voltage - -0.3 2.7 5.5 V Ambient Temperature - -40 25 85 ℃ Conditions Min. Typ. Max. Unit 20 µA Parameter Electrical Characteristics Parameter Average Supply Current 1 - - 3 - - 1.1 1 - mA - - 2.5 1 - µA Output Saturation Voltage - - 0.1 - V Output Leakage Current - - 0.01 - µA Operating time - - 60 - µs Standby time - - 150 - ms Duty cycle - - 0.04 - % Conditions Min. Typ. Max. Unit Operate Points ( |BOP| ) - 40 50 60 G Hysteresis - 5 10 15 G Average Supply Current (operating phase) Average Supply Current (stand-by phase) Note1. operating voltage 2.7V Magnetic Characteristics Parameter This datasheet contains new product information. Advanced Analog Technology 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 sales of the product. Rev. 0.61 6/13 FD2H001Ba/FD2H001BY/FD2H001BH Magnetic Flux Direction Voh Vol B BRP BOP BOP BRP 0 Figure. 3 This datasheet contains new product information. Advanced Analog Technology 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 sales of the product. Rev. 0.61 7/13 FD2H001Ba/FD2H001BY/FD2H001BH Typical Characteristics S w it ch in g Po in t vs . Am bi e nt T em pe ra tu re (G ) 80 Sw i tc hi ng P oi nt s 60 40 Bo pn 20 0 Br pn - 20 - 40 - 60 - 80 -4 0 - 20 0 20 40 60 80 Am bi en t Te mp er at ur e ( C) Figure.4 Magnetic Switch Points Versus Ambient Temperature (VDD=2.7V) Switching Point vs. Supply Voltage 80 Switching Points (G) 60 40 20 Bopn 0 -20 Brpn -40 -60 -80 2.5 3 3.5 4 4.5 5 5.5 Supply Voltage (V) Figure.5 Magnetic Switch Points Versus Supply Voltage (Ta=25C degree) This datasheet contains new product information. Advanced Analog Technology 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 sales of the product. Rev. 0.61 8/13 FD2H001Ba/FD2H001BY/FD2H001BH Average current vs. Supply Voltage Average Current (uA) 20 18 16 14 12 10 8 6 4 2 0 2.5 3 3.5 4 4.5 5 5.5 Supply Voltage (V) Figure.6 Average Current Versus Supply Voltage ( Ta=25C degree) Average Current vs. Ambient Temperature Average Current(uA) 10 8 6 4 2 0 -40 -20 0 20 40 60 80 Ambient Temperature (C) Figure.7 Average Current Versus Ambient Temperature (VDD=2.7V ) This datasheet contains new product information. Advanced Analog Technology 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 sales of the product. Rev. 0.61 9/13 FD2H001Ba/FD2H001BY/FD2H001BH Application Circuit Reference 1 VIN 1 IC1 FD2H001 2 Q VSS 1 C1 1uF VDD 3 GND R1 10K 1 OUT Figure.8 NOTE: 1. R1 is for power supply filtering function, and must be placed as close to IC1 as possible. This datasheet contains new product information. Advanced Analog Technology 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 sales of the product. Rev. 0.61 10/13 FD2H001Ba/FD2H001BY/FD2H001BH Package Outline TSOT-23L Unit: mm Symbols Dimension In Millimeters Min Nom Max A 0.750 - 0.800 A1 0.025 - 0.050 A2 0.700 0.750 0.775 b 0.350 - 0.500 c 0.100 - 0.200 D 2.800 2.900 3.000 E 2.600 2.800 3.000 E1 1.500 1.600 1.700 e 0.950 BSC e1 1.900 BSC L 0.370 0.450 L1 0.600 REF L2 0.250 BSC 0.600 R 0.100 - - R1 0..100 - 0.250 Θ 0˚ 4˚ 8˚ Θ1 4˚ 10˚ 12˚ This datasheet contains new product information. Advanced Analog Technology 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 sales of the product. Rev. 0.61 11/13 FD2H001Ba/FD2H001BY/FD2H001BH SOT23 Unit: mm Symbols Dimension In Millimeters Min. (mm) Nom. (mm) Max. (mm) A - - 1.45 A1 - - 0.15 A2 0.90 1.15 1.30 b 0.30 - 0.50 c 0.08 - 0.22 D 2.90 BSC. E 2.80 BSC E1 1.60 BSC e 0.95 BSC e1 1.90 BSC L 0.30 0.45 L1 0.60 REF. L2 0.25 BSC 0.60 R 0.10 - - R1 0.10 - 0.25 θ° 0° 4° 8° θ1° 5° 10° 15° This datasheet contains new product information. Advanced Analog Technology 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 sales of the product. Rev. 0.61 12/13 FD2H001Ba/FD2H001BY/FD2H001BH e D b b1 A A1 SIP-3L L E Unit: mm Symbols Min. (mm) Nom. (mm) Max. (mm) A 1.245 - 1.753 A1 b 0.75REF 0.33 b1 - 0.56 0.54 REF D 3.85 - 4.2 E 2.87 - 3.124 L 13.5 - 15.6 e 1.27 REF Note: 1. Dimension “D” does not include molding flash, protrusions or gate burrs. 2. Dimension “E” does not include interlead flash, protrusions. This datasheet contains new product information. Advanced Analog Technology 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 sales of the product. Rev. 0.61 13/13