AH1803 MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH General Description Features • • • • • • • • • • AH1803 is with two Hall effect plates and a CMOS 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 on. The output will be turned off under no magnetic field. While the magnetic flux density (B) is larger than operate point (Bop), the output will be turned on (low), the output is held until B is lower than release point (Brp), then turned off (High). Micropower operation Operation with North or South Pole 2.4 to 5.5V battery operation 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 DFN2020-6 package ESD (HBM) ＞ 4KV for DFN2020-6 Lead Free Finish / RoHS Compliant (Note 1) Green Packages: SC59 and DFN2020-6 Applications • • • Cellular phone PDA Cordless phone Ordering Information AH1803 - X X X Package W : SC59 SN : DFN2020-6 Note: Packing 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 Package Code AH1803-W AH1803-SN W SN Note: Lead Free Packaging (Note 2) SC59 DFN2020-6 7” Tape and Reel Quantity Part Number Suffix 3000/Tape & Reel -7 3000/Tape & Reel -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. AH1803 Rev. 1 1 of 7 www.diodes.com JULY 2007 © Diodes Incorporated AH1803 MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH Pin Description Name Vdd GND Output P/I/O P/I P/I O Pin # 1 2 3 Description Power Supply Input Ground Output Pin Pin Assignment SC59 DFN2020-6 1. Vdd 3. Output NC 3. Output GND 2. 1. Vdd Top view NC NC 2. GND Bottom view Note: 3. NC is “No Connection”, which is recommended to be tied to ground. Block Diagram 1 Vdd Power switch Offset Cancelling Hall Plate Amp Latch Logical 3 Out Offset Cancelling Hall Plate Amp Latch 2 GND AH1803 Rev. 1 2 of 7 www.diodes.com JULY 2007 © Diodes Incorporated AH1803 MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH Typical Circuit Vdd A H 1803 O u tp u t G nd Absolute Maximum Ratings Symbol Vdd B TA Ts (@ TA = 25°C) Characteristics Supply voltage Magnetic flux density Operating Temperature Range Storage Temperature Range PD Package Power Dissipation TJ Maximum Junction Temperature SC59 DFN2020-6 Recommended Operating Conditions Symbol Vdd AH1803 Rev. 1 Parameter Supply Voltage Values 7 Unlimited -40 to +85 -65 to +150 230 230 150 Unit V °C °C mW mW °C (TA = 25°C) Conditions Operating 3 of 7 www.diodes.com Rating Unit 2.4~5.5 V JULY 2007 © Diodes Incorporated AH1803 MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH Electrical Characteristics Symbol Characteristic Vout Ioff Output On Voltage Output Leakage Current Conditions Idd(en) Idd(dis) Supply Current Idd(avg) Tawake Tperiod D.C. (TA = +25°C, Vdd = 3V; unless otherwise specified) Typ Max Unit - 0.1 <0.1 3 0.3 1 6 V µA mA - 3 9 mA - 5 10 µA - 5 14 µA - 8 16 µA - 8 23 µA - 75 75 0.1 150 150 - µs ms % Iout =1mA Vout = 5.5V, Brpn < B < Brps Chip enable, TA = 25°C, Vdd = 3V Chip enable, TA = -40~85°C, Vdd = 2.4~5.5V Chip disable, TA = 25°C, Vdd = 3V Chip disable, TA = -40~85°C, Vdd = 2.4~5.5V Average supply current, TA = 25°C, Vdd = 3V Average supply current, TA= -40~85°C, Vdd = 2.4~5.5V Awake Time Period Duty Cycle Magnetic Characteristics Symbol (TA = 25°C, Vdd = 3V) Characteristic 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 ) Note: Min Operate Point Release Point Hysteresis (1mT=10 Gauss) Max Unit Min Typ 2 -4 1 - 3 -3 2 -2 4 -2 -1 0.5 1 - mT 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. Output Vcc ( off-state ) Turn off Turn on B hy ( Output Voltage ) ( Output Voltage ) Output ( on-state ) Vsat Bopn Brpn 0 ( Magnetic flux density B ) AH1803 Rev. 1 4 of 7 www.diodes.com ( off-state ) Turn off Vcc Bhy Turn on Vsat ( on-state ) 0 Brps Bops ( Magnetic flux density B ) JULY 2007 © Diodes Incorporated AH1803 MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH Performance Characteristics (1) SC59 and 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 o w e r D is s ip a tio n C u rv e P D (m W ) 300 200 100 0 0 25 50 75 85 100 125 150 T A (。 C ) Marking Information (1) SC59 (2) DFN2020-6 (Top View) (Top View) Pin 1 indicator XX : KD: AH1803 XX Y M X Part Number AH1803 AH1803 Rev. 1 XX YM X Y : Year 0~9 M : Month A~L X : Internal code A~Z: Green Package SC59 Identification Code KD Part Number AH1803 5 of 7 www.diodes.com KD : AH1803 Date code Internal code A~Z: Green Package M : Month (A~L) Y : Year Package Identification Code DFN2020-6 KD JULY 2007 © Diodes Incorporated AH1803 MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH Package Information (unit: mm) (1) Package Type: 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° 0.43mon. 0.57/0.63 (2) Package Type: DFN2020-6 Marking 0.15max. 0.05 C 0.15 C Pin#1 ID 2x 0/0.05 0.08 C 2x- 0.15 C 1.95/2.075 1.45/1.65 A Seating plane C Sensor location 0.30/0.40 0.76/0.96 1.95/2.075 B (Active area depth) .1 R0 0.65nom. 0.2/0.3 0.05 M C A B Bottom View AH1803 Rev. 1 6 of 7 www.diodes.com JULY 2007 © Diodes Incorporated AH1803 MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH 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. AH1803 Rev. 1 7 of 7 www.diodes.com JULY 2007 © Diodes Incorporated