TSH248 Micropower Omni-Polar Hall Effect Switch TSOT-23 Pin Definition: 1. VCC 2. Output 3. GND Description TSH248 Hall-effect sensor is a temperature stable, stress-resistant, micro-power switch. Superior hightemperature performance is made possible through a dynamic offset cancellation that utilizes chopperstabilization. This method reduces the offset voltage normally caused by device over-molding, temperature dependencies and thermal stress. TSH248 includes the following on a single silicon chip: voltage regulator, Hall voltage generator, small-signal amplifier, chopper stabilization, Schmitt trigger, open-drain output. Advanced CMOS wafer fabrication processing is used to take advantage of low-voltage requirements, component matching, very low input-offset errors and small component geometries. Features ● CMOS Hall IC Technology ● Solid-State Reliability ● Low power consumption for battery applications ● Operation voltage range from 2.5V~3.5V Ordering Information Part No. TSH248CX RFG Package Packing TSOT-23 3kpcs / 7” Reel Note: “G” denote for Halogen Free Product Application ● Solid state switch ● Lid close sensor for power supply devices ● Magnet proximity sensor for reed switch replacement in high duty cycle applications. ● Handheld Wireless Handset Awake Switch (Flip Cell/PHS Phone/Note Book/Flip Video Set) Absolute Maximum Ratings (TA = 25oC unless otherwise noted) Characteristics Limit Value Unit Supply voltage VCC 5 V Output Voltage VOUT 5 V Reverse voltage VCC/OUT -0.3 V Unlimited G mA Magnetic flux density Output current IOUT 2 Operating Temperature Range TOPR -40 to +85 Storage temperature range TSTG Maximum Junction Temp Thermal Resistance - Junction to Ambient Thermal Resistance - Junction to Case Package Power Dissipation o C o C -55 to +150 o C TJ 150 RθJA 543 o RθJC 410 o PD 230 C/W C/W mW Note: Exceeding the absolute maximum ratings may cause permanent damage. Exposure to absolute maximumrated conditions for extended periods may affect device reliability. 1/8 Version: B14 TSH248 Micropower Omni-Polar Hall Effect Switch Block Diagram Note: Static sensitive device; please observe ESD precautions. Reverse VCC protection is not included. For reverse voltage protection, a 100Ω resistor in series with VCC is recommended. Typical Application Circuit C1：10nF C2：100pF R1：100kΩ 2/8 Version: B14 TSH248 Micropower Omni-Polar Hall Effect Switch Electrical Specifications (DC Operating Parameters: TA=+25oC, VCC=3V) Parameters Test Conditions Min Typ Max Units 2.5 -- 3.5 V Awake State -- 2.5 4.0 mA Sleep State -- 8.0 12 µA Average -- 10 16 µA Output Low Voltage IOUT=1mA -- -- 0.3 V Output Leakage Current Output off -- -- 1 µA Awake Mode Time Operating -- 70 -- µs Sleep Mode Time Operating -- 70 -- ms -- 0.1 -- % Min. Typ. Max. Units Supply Voltage Operating Supply Current Duty Cycle Magnetic Specifications o DC Operating Parameters TA=25 C, VCC=3.0V Parameter Symbol Test Conditions Operating Point BOPS N pole to branded side, B > BOP, VOUT On 6 -- 60 G BOPN S pole to branded side, B > BOP, VOUT On -60 -- -6 G Release Point BRPS N pole to branded side, B < BRP, VOUT Off 5 -- -59 G BRPN S pole to branded side, B < BRP, VOUT Off -60 -- -5 G Hysteresis BHYS |BOPx - BRPx| -- 7 -- G Note: 1G (Gauss) = 0.1mT (millitesla) 3/8 Version: B14 TSH248 Micropower Omni-Polar Hall Effect Switch Output Behavior versus Magnetic Pole o DC Operating Parameters: TA = -40 to 85 C, VCC = 2.5V ~ 3.5V Parameter Test condition OUT South pole B<Bop[(-60)~(-6)] Low Null or weak magnetic field B=0 or B<BRP Open (Pull-up Voltage) North pole B>Bop(60~6) Low TSOT-23 4/8 Version: B14 TSH248 Micropower Omni-Polar Hall Effect Switch Characteristic Performance Figure 1. Flux Density vs. Supply Voltage Figure 2. Flux Density vs. Temperature Figure 3. Supply Current vs. Supply Voltage Figure 4. Supply Current vs. Temperature Figure 5. Output Saturation Voltage vs. Supply Voltage Figure 6. Output Saturation Voltage vs. Temperature 5/8 Version: B14 TSH248 Micropower Omni-Polar Hall Effect Switch Characteristic Performance Figure 7. Output Leakage Current vs. Supply Voltage 6/8 Version: B14 TSH248 Micropower Omni-Polar Hall Effect Switch TSOT-23 Mechanical Drawing Unit: Millimeters Marking Diagram 248 WW = Device Code = Week Code Table week code week code week code week code 1 QA 14 QN 27 RA 40 RN 2 QB 15 QO 28 RB 41 RO 3 QC 16 QP 29 RC 42 RP 4 QD 17 QQ 30 RD 43 RQ 7/8 5 QE 18 QR 31 RE 44 RR 6 QF 19 QS 32 RF 45 RS 7 QG 20 QT 33 RG 46 RT 8 QH 21 QU 34 RH 47 RU 9 QI 22 QV 35 RI 48 RV 10 QJ 23 QW 36 RJ 49 RW 11 QK 24 QX 37 RK 50 RX 12 QL 25 QY 38 RL 51 RY 13 QM 26 QZ 39 RM 52 RZ Version: B14 TSH248 Micropower Omni-Polar Hall Effect Switch Notice Specifications of the products displayed herein are subject to change without notice. TSC or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies. Information contained herein is intended to provide a product description only. No license, express or implied, to any intellectual property rights is granted by this document. Except as provided in TSC’s terms and conditions of sale for such products, TSC assumes no liability whatsoever, and disclaims any express or implied warranty, relating to sale and/or use of TSC products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right. The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications. Customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify TSC for any damages resulting from such improper use or sale. 8/8 Version: B14