AH1801 MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH General Description Features • • • • • • • • • • • Micropower operation Operation with North or South Pole 2.5V to 5.5V battery operation Inverted Output-on without Magnet present Chopper stabilized • Superior temperature stability • Extremely Low Switch-Point Drift • Insensitive to Physical Stress Good RF noise immunity -40°C to 85°C operating temperature Low profile 3 pin SC59 (commonly known as SOT23 in Asia) and DFN2020-3, DFN2020-6 package ESD (HBM) ＞ 5KV for DFN2020-3 and DFN2020-6 ＞ 6KV for SC59 SC59, DFN2020-3 and DFN2020-6: Available in “Green” Molding Compound (No Br, Sb) Lead Free Finish / RoHS Compliant (Note 1) AH1801 is a Micropower, Ultra-sensitive Hall Effect Switch, which is with two Hall effect plates and a output driver, mainly designed for battery–operation, hand-held equipment (such as Cellular and Cordless Phone, PDA). The total operation power is down to 24uW in the 3V supply. Either north or south pole of sufficient strength will turn the output off. The output will be turned on under no magnetic field. While the magnetic flux density (B) is larger than operate point (Bop), the output will be turned off, the output is held until B is lower than release point (Brp), then turned on. Applications • • • Cellular phone PDA Cordless phone Ordering Information AH1801 - XX X X Note: Package Lead Free Packing W : SC59 FJ : DFN2020-3 SN : DFN2020-6 G : Green -7 : Taping 1. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7. Device AH1801-W AH1801-FJ AH1801-SN Note: Package Code Packaging (Note 2) W FJ SN SC59 DFN2020-3 DFN2020-6 7” Tape and Reel Quantity Part Number Suffix 3000/Tape & Reel 3000/Tape & Reel 3000/Tape & Reel -7 -7 -7 2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf. AH1801 Rev. 4 1 of 8 www.diodes.com JULY 2007 © Diodes Incorporated AH1801 MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH Pin Assignment (1) SC59 (2) DFN2020-3 1. Vdd 3. Output 3. Output GND 2. 1 . Vdd (Top View) 2. GND (Bottom view ) (3) DFN2020-6 1. Vdd 3. Output NC NC NC 2. GND (Bottom view ) Note: 3. NC is “No Connection”, which is recommended to be tied to ground. Pin Descriptions Name Vdd GND Output P/I/O P/I P/I O AH1801 Rev. 4 Pin # 1 2 3 Description Power Supply Input Ground Output Pin 2 of 8 www.diodes.com JULY 2007 © Diodes Incorporated AH1801 MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH Block Diagram 1 Vdd Power switch Offset Cancelling Hall Plate Output Latch Amp 3 GND Logical 2 Offset Cancelling Hall Plate Amp Latch Typical Circuit 2.5~5.5V RL AH1801 Output GND Absolute Maximum Ratings Symbol Vdd B Ta Ts PD TJ AH1801 Rev. 4 (at TA = 25°C) Characteristics Supply voltage Magnetic flux density Operating Temperature Range Storage Temperature Range Package Power Dissipation Values Unit 7 V Unlimited -40 to +85 °C -65 to +150 °C SC59 DFN2020-3 DFN2020-6 Maximum Junction Temp 3 of 8 www.diodes.com 230 mW 150 °C JULY 2007 © Diodes Incorporated AH1801 MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH Recommended Operating Conditions Symbol Parameter Vdd Supply Voltage Electrical Characteristics Symbol Characteristic Vout Ioff Output On Voltage Output Leakage Current Idd(en) Idd(dis) Supply Current Idd(avg) Tawake Tperiod D.C. Conditions Operating Symbol Bops(south pole to brand side) Bopn(north pole to brand side) Brps(south pole to brand side) Brpn(north pole to brand side) Bhy( Bopx − Brpx ) Rating Unit 2.5~5.5 V (TA = +25°C, Vdd = 3V; unless otherwise specified) Conditions Iout = 1mA Vout = 5.5V, Output off Chip enable, TA = 25°C, Vdd = 3V Chip enable, TA = -40~85°C, Vdd = 2.5~5.5V Chip disable, TA = 25°C, Vdd = 3V Chip disable, TA = -40~85°C, Vdd = 2.5~5.5V Average supply current, TA = 25°C, Vdd = 3V Average supply current, TA = -40~85°C, Vdd = 2.5~5.5V Awake Time Period Duty Cycle Magnetic Characteristics Note: (TA = 25°C) Min Typ Max Unit - 0.1 <0.1 3 0.3 1 6 V µA mA - 3 9 mA - 5 10 µA - 5 18 µA - 8 16 µA - 8 27 µA - 75 75 0.1 150 150 - µs ms % (TA = 25°C, Vdd = 3V) Characteristic Operate Point Release Point Hysteresis Min Typ (1mT=10 Gauss) Max Unit -60 10 - 40 -40 30 -30 60 -10 - 10 - Gauss 4. Typical data is at TA=25 °C, Vdd=3V, and for design information only. 5. Operate point and release point will vary with supply voltage and operating temperature. AH1801 Rev. 4 4 of 8 www.diodes.com JULY 2007 © Diodes Incorporated AH1801 MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH Output ( Voltage ) ( off-state ) Turn off Turn Turn on on Turn off ( on-state ) -B Bopn Brpn Brps Bops +B Magnetic Performance Characteristics (1) SC59 / DFN2020-3 /DFN2020-6 TA (°C) 25 50 60 70 80 85 90 100 110 120 130 140 150 PD (mW) 230 184 166 147 129 120 110 92 74 55 37 18 0 P D (m W ) P o w e r D is s ip a tio n C u rv e 300 200 100 0 0 25 50 75 85 100 125 150 T A (。 C ) AH1801 Rev. 4 5 of 8 www.diodes.com JULY 2007 © Diodes Incorporated AH1801 MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH Marking Information (1) SC59 (2) DFN2020-3 (Top View) (Top View) XX Y M X Part Number AH1801 Pin 1 indicator XX YM X XX : KB : AH1801 Y : Year M : Month (A~L) X : Internal code A~Z:Green Package Package SC59 Identification Code KB Part Number AH1801 K1:AH1801 Date code ID code A~Z: Green Package M : Month (A~L) Y : Year Package Identification Code DFN2020-3 K1 (3) DFN2020-6 (Top View) Pin 1 indicator XX YM X Part Number AH1801 AH1801 Rev. 4 KB:AH1801 Date code ID code A~Z: Green Package M : Month (A~L) Y : Year Package Identification Code DFN2020-6 KB 6 of 8 www.diodes.com JULY 2007 © Diodes Incorporated AH1801 MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH Package Information (unit: mm) (1) SC59 (commonly known as SOT23 in Asia) TOP VIEW 1.50/ 1.70 0.35/0.50 2.70/ 3.00 1.90 2.90/3.10 1.00/ 1.30 0.013/0.10 0.10/0.20 0.95 0.35/0.55 0°/8° 0.13Max. 0.47/0.53 (2) DFN2020-3 0.10 C Seating plane 2x- 0.8/1.0 1.95/2.075 R0 CL C Sensor location 0.35/0.45 0.5Typ .2 CL 0.25 B 0.10 M C A B 0.2/0.3 1.1/1.3 0.138(Ref.) B 0/0.05 0.08 C 0.325(Ref.) A Bottom View 2x 0.25 A 1.95/2.075 AH1801 Rev. 4 7 of 8 www.diodes.com JULY 2007 © Diodes Incorporated AH1801 MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH Package Information (Continued) 0.43mon. 0.57/0.63 (3) DFN2020-6 Marking 0.05 C 0/0.05 0.15max. 0.15 C 0.08 C 2x Pin#1 ID 1.95/2.075 A Sensor location 0.30/0.40 1.45/1.65 R0 2x- Seating plane C 0.76/0.96 1.95/2.075 B (Active area depth) .1 0.15 C 0.65nom. 0.2/0.3 0.05 M C A B Bottom View IMPORTANT NOTICE Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further notice to any product herein. Diodes Incorporated does not assume any liability arising out of the application or use of any product described herein; neither does it convey any license under its patent rights, nor the rights of others. The user of products in such applications shall assume all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on our website, harmless against all damages. LIFE SUPPORT Diodes Incorporated products are not authorized for use as critical components in life support devices or systems without the expressed written approval of the President of Diodes Incorporated. AH1801 Rev. 4 8 of 8 www.diodes.com JULY 2007 © Diodes Incorporated