AH342 ACTIVE HIGH/LOW COMPLEMENTARY OUTPUT HALL-EFFECT LATCH General Description Features • • • • • • The AH342 is a bipolar latching hall IC with a pair of complementary push/pull outputs. A dual hall element is used to offset stress induced noise and drift. The robust outputs are capable of sourcing up to 7.4mA and sinking up to 4.4mA. The device contains inherent reverse polarity protection up to the full power supply range. Digital dual complementary sink/source outputs Reverse Voltage Polarity protection for full supply range. High output current capability Low profile packages: SIP-4L Lead Free Package: SIP-4L Lead Free Finish/RoHS Compliant (Note 1) Applications • • • • • Conveyors Motor control Power sensing Linear or rotary motion detection RPM sensing Ordering Information AH 342 - P L - B Device Lead-free AH342-PL-B Notes: Package Lead Free Packing P : SIP-4L L : Lead Free B : Bulk Package Code P Packaging (Note 2) SIP-4L Quantity 1000 Bulk Part Number Suffix -B 1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at http://www.diodes.com/products/lead_free.html. 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. AH342 Rev. 3 1 of 8 www.diodes.com JANUARY 2009 © Diodes Incorporated AH342 ACTIVE HIGH/LOW COMPLEMENTARY OUTPUT HALL-EFFECT LATCH Pin Assignments ( Top View ) 1 : Vcc 342 2 : DO 3 : DOB 4 : Vss 1 2 3 4 SIP-4L Pin Descriptions Pin Name Description VCC Positive Power Supply DO Output pin DOB Output pin VSS Ground NC No Connect AH342 Rev. 3 2 of 8 www.diodes.com JANUARY 2009 © Diodes Incorporated AH342 ACTIVE HIGH/LOW COMPLEMENTARY OUTPUT HALL-EFFECT LATCH Block Diagram OUTPUT AMP SOURCE 7.5V 660 IO 510 SINK Voltage Regulator Hall Sensor Amp and Trigger Absolute Maximum Ratings Symbol VCC VOUT Ic B TST Notes: Output Amp #2 IO2 (Note 3) Conditions Supply voltage Voltage Externally Applied to Output Output Current Storage Temperature IO1 Interface Circuit Characteristics Magnetic Flux density Output Amp #1 o o -40 C to 125 C -40oC to 125oC No limit; the circuit cannot be damaged by magnetic overdrive No power applied Rating Unit ±28 -1.2 to 5 ±10 V V mA Unlimited -40 to 150 °C 3. Absolute maximum ratings are the extreme limits that the device will withstand without damage to the device. However, the electrical and magnetic characteristics are not guaranteed as the maximum limits (above recommended operating conditions) are approached nor will the device necessarily operate at absolute maximum rating. AH342 Rev. 3 3 of 8 www.diodes.com JANUARY 2009 © Diodes Incorporated AH342 ACTIVE HIGH/LOW COMPLEMENTARY OUTPUT HALL-EFFECT LATCH Recommended Operating Conditions Symbol VCC Supply Voltage Operating Ambient Temperature (Note 4) TA Notes: Characteristic Conditions Min Max Unit Operating 4.5 28 V Operating -40 125 °C 4. Shall not exceed PD and Safety Operation Area. Electrical Characteristics Symbol Characteristic ICC Supply Current (Note 5, 6) Conditions 28V±0.5% supply 24oC ± 2oC -40oC to 125 oC Units Min Typ. Max Min Typ. Max 4 4.5 6 3 4.5 7 6.0 7.0 7.5 - - - 0 0.1 0.2 - - - 0 0.1 0.2 - - - 6.0 7.0 7.5 - - - - - 1.0 - - 1.0 5.5 7.4 8.0 5.0 7.4 8.5 2.8 3.4 4.7 2.4 3.4 5.0 2.8 3.4 4.7 2.4 3.4 5.0 5.5 7.4 8.0 5.0 7.4 8.5 - - - - - 1.0 - - - - - 1.0 mA Output Voltage #1 Sourcing VOUT #2 Sinking #1 Sinking Switch magnetically operated: No load 28V±0.5% supply. Switch magnetically released: No load 28V±0.5% supply. #2 Sourcing ILeak(sink) Leakage (sink) Apply voltage 0.2V greater than measured output source voltage measure current, no load 28V±0.5% supply. V µA Output Current #1 Sourcing #2 Sinking IOUT #1 Sinking #2 Sourcing Apply 2V to output and measure current. Switch magnetically operated, no load 28V±0.5%. Apply 2V to output and measure current. Switch magnetically released, no load 28V±0.5%. mA Output Switching Time tf Fall Time tr Rise Time AH342 Rev. 3 90% to 10%; no load 28V±0.5% Supply 10% to 90%; no load 28V±0.5% Supply 4 of 8 www.diodes.com µs JANUARY 2009 © Diodes Incorporated AH342 ACTIVE HIGH/LOW COMPLEMENTARY OUTPUT HALL-EFFECT LATCH Magnetic Characteristics Symbol Characteristic Bop Brp Bhy Operate Point Release Point Hysteresis Notes: (TA = +25°C) (Note 5, 6) ( 1mT = 10 Gauss ) -40 oC to 125 oC Vs=4.5Vdc to 28Vdc Unit Min Max 30 150 Gauss -150 -30 Gauss 120 200 Gauss 24oC ± 2oC Vs=12Vdc ± 0.5%Vdc Min Max 40 120 -120 -40 120 200 5. All the parameters are tested under the 25oC only. The operation temperature (-40oC to 125oC) is guaranteed by design, it is typical value. 6. The magnetic field strength (gauss) required to cause the switch to change state (operate and release) will be as specified in the magnetic characteristics. To test the switch against the specified magnetic characteristics the switch must be placed in a uniform magnetic field. DOB ( Output Voltage ) ( Output Voltage ) DO ( off-state ) Vcc Bhy Turn off Turn on 0 Bop Bhy Turn on Turn oFF Vsat Vsat Brp Vcc ( on-state ) ( on-state ) N ( off-state ) S Brp N ( Magnetic flux density B ) 0 Bop S ( Magnetic flux density B ) Performance Characteristics 25 550 105 198 TA (°C) PD (mW) TA (°C) PD (mW) 50 440 110 176 60 396 115 154 70 352 120 132 80 308 125 110 85 286 130 88 90 264 135 66 95 242 140 44 100 220 150 0 P o w e r D issip a tio n C u rve P D (m W ) 600 500 400 300 200 100 0 0 25 50 75 100 125 150 T A (。 C ) AH342 Rev. 3 5 of 8 www.diodes.com JANUARY 2009 © Diodes Incorporated AH342 ACTIVE HIGH/LOW COMPLEMENTARY OUTPUT HALL-EFFECT LATCH Operating Characteristics S Marking side ( Output Voltage ) DO N Vcc Vd High Bhy Low Vsat ( SIP-4L) Brp N 0 Bop S ( Magnetic flux density ) Marking Information ( Top View ) Part Number AH342 Rev. 3 342 Y WW X Y : Year : 0~9 WW : Week : 01~52, "52" represents 52 and 53 week X : Internal Code : a~z : Lead Free 6 of 8 www.diodes.com JANUARY 2009 © Diodes Incorporated AH342 ACTIVE HIGH/LOW COMPLEMENTARY OUTPUT HALL-EFFECT LATCH Package Information (All Dimensions in mm) (1) Package type: SIP-4L Marking side 1.95士0.1mm 1.1士0.1mm 1 0.7 mm 2 3 4 Sensor Location Active Area Depth Package Dimension AH342 Rev. 3 7 of 8 www.diodes.com JANUARY 2009 © Diodes Incorporated AH342 ACTIVE HIGH/LOW COMPLEMENTARY OUTPUT HALL-EFFECT LATCH 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. AH342 Rev. 3 8 of 8 www.diodes.com JANUARY 2009 © Diodes Incorporated