AH342

AH342 ACTIVE HIGH/LOW COMPLEMENTARY OUTPUT HALL-EFFECT LATCH Features • • • • • • 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) General Description 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. Applications • • • • • Conveyors Motor control Power sensing Linear or rotary motion detection RPM sensing Ordering Information AH 342 - P L - B Package P : SIP-4L Device Lead-free Lead Free L : Lead Free Packaging (Note 2) SIP-4L Packing B : Bulk Bulk Part Number Suffix -B AH342-PL-B Notes: Package Code P Quantity 1000 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 ) 342 1 : Vcc 2 : DO 3 : DOB 4 : Vss 12 3 4 SIP-4L Pin Descriptions Pin Name VCC DO DOB VSS NC Description Positive Power Supply Output pin Output pin Ground 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 7.5V 660 SOURCE IO 510 SINK Voltage Regulator Output Amp #1 Interface Circuit Output Amp #2 IO2 IO1 Hall Sensor Amp and Trigger Absolute Maximum Ratings Symbol VCC VOUT Ic B TST Notes: (Note 3) Characteristics Supply voltage Voltage Externally Applied to Output Output Current Magnetic Flux density Storage Temperature o Conditions -40 C to 125 C -40oC to 125oC No limit; the circuit cannot be damaged by magnetic overdrive No power applied o Rating ±28 -1.2 to 5 ±10 Unlimited -40 to 150 Unit V V mA °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 TA Notes: Characteristic Supply Voltage Operating Ambient Temperature (Note 4) Operating Operating Conditions Min 4.5 -40 Max 28 125 Unit V °C 4. Shall not exceed PD and Safety Operation Area. Electrical Characteristics (Note 5, 6) Symbol ICC Characteristic Supply Current #1 Sourcing Conditions 28V±0.5% supply 24oC ± 2oC -40oC to 125 oC Units Min Typ. Max Min Typ. Max 4 6.0 0 0 6.0 4.5 7.0 0.1 0.1 7.0 6 7.5 0.2 0.2 7.5 1.0 3 4.5 7 1.0 µA V mA Output Voltage Switch magnetically operated: No load 28V±0.5% supply. Switch magnetically released: No load 28V±0.5% supply. Apply voltage 0.2V greater than measured output source voltage measure current, no load 28V±0.5% supply. VOUT #2 Sinking #1 Sinking #2 Sourcing ILeak(sink) Leakage (sink) - Output Current #1 Sourcing #2 Sinking IOUT #1 Sinking #2 Sourcing Output Switching Time tf tr Fall Time Rise Time 90% to 10%; no load 28V±0.5% Supply 10% to 90%; no load 28V±0.5% Supply 1.0 µs 1.0 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%. 5.5 2.8 2.8 5.5 7.4 3.4 3.4 7.4 8.0 4.7 4.7 8.0 5.0 2.4 2.4 5.0 7.4 3.4 3.4 7.4 8.5 5.0 mA 5.0 8.5 AH342 Rev. 3 4 of 8 www.diodes.com JANUARY 2009 © Diodes Incorporated AH342 ACTIVE HIGH/LOW COMPLEMENTARY OUTPUT HALL-EFFECT LATCH Magnetic Characteristics (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 Symbol Bop Brp Bhy Notes: Characteristic Operate Point Release Point Hysteresis 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. DO ( Output Voltage ) ( Output Voltage ) DOB ( off-state ) ( off-state ) Vcc Turn off Vcc Turn on Bhy Turn on Bhy Turn oFF ( on-state ) ( on-state ) Vsat N Brp 0 Bop S N ( Magnetic flux density B ) Vsat Brp 0 Bop S ( Magnetic flux density B ) Performance Characteristics TA (°C) PD (mW) TA (°C) PD (mW) P D (m W ) 600 500 400 300 200 100 0 0 25 50 75 100 125 150 T A (。 C ) 25 550 105 198 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 AH342 Rev. 3 5 of 8 www.diodes.com JANUARY 2009 © Diodes Incorporated AH342 ACTIVE HIGH/LOW COMPLEMENTARY OUTPUT HALL-EFFECT LATCH Operating Characteristics DO ( Output Voltage ) Vcc High S Marking side Vd Bhy Low N ( SIP-4L) Vsat N Brp 0 Bop S ( Magnetic flux density ) Marking Information ( Top View ) Part Number 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 AH342 Rev. 3 6 of 8 www.diodes.com JANUARY 2009 © Diodes Incorporated AH342 ACTIVE HIGH/LOW COMPLEMENTARY OUTPUT HALL-EFFECT LATCH Package Information (1) Package type: SIP-4L (All Dimensions in mm) Marking side 1.1士0.1mm 1.95士0.1mm 0.7 mm 1 2 3 4 Active Area Depth Package Dimension Sensor Location 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