AH342 Active High/Low Complementary Output Hall-effect Latch Features General Description - Digital dual complementary sink/source outputs - Reverse Voltage Polarity protection for full supply range. - High output current capability - Low profile 4 pin SIP package 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 Pin Assignment Pin Descriptions Front View 342 Name P/I/O Pin # 1 : Vcc Vcc P 1 2 : DO DO DOB Vss O O P 2 3 4 3 : DOB 1 2 3 4 Description Positive Supply Output Pin Output Pin Ground Power 4 : Vss Ordering Information AH342 X - X X Wafer Body Package Lead Blank P: SIP-4L L : Lead Free *Packing: Bulk This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sale of the product. Rev.1.1 Sep 30, 2005 1/5 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 Output Amp #1 IO1 Output Amp #2 IO2 Interface Circuit Absolute Maximum Ratings (Note 1) Characteristics Supply voltage Voltage Externally Applied to Output Output Current Magnetic Flux density Operation Temperature Storage Temperature Sym. VCC VOUT Ic B TOPR TSTG Conditions o o -40 C to 125 C o o -40 C to 125 C No limit; the circuit cannot be damaged by magnetic overdrive No power applied Values Unit ±28 -1.2 to 5 ±10 V V mA Unlimited -40 to 125 -40 to 150 °C °C Note 1: 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. Anachip Corp. www.anachip.com.tw Rev.1.1 Sep 30, 2005 2/5 AH342 Active High/Low Complementary Output Hall-effect Latch Electrical Characteristics (Note 2, 3) Characteristic Sym. Supply Voltage VCC Supply Current ICC Output Voltage #1 Sourcing #2 Sinking VOUT #1 Sinking #2 Sourcing Leakage (sink) ILeak(sink) 24oC ± 2oC Min Typ. Max Conditions 28V±0.5% supply 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. -40oC to 125 oC Units Min Typ. Max 4.5 4 4.5 28 6 4.5 3 4.5 28 7 V mA 6.0 0 0 6.0 7.0 0.1 0.1 7.0 7.5 0.2 0.2 7.5 - - - V - - 1.0 - - 1.0 µA 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 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 Fall Time tf Rise Time tr 90% to 10%; no load 28V±0.5% Supply 10% to 90%; no load 28V±0.5% Supply µs Magnetic Characteristics( Ta=+25°C) (Note 2, 3) Characteristic Sym. Operate Point Release Point Hysteresis Bop Brp Bhy 24oC ± 2oC Vs=12Vdc ± 0.5%Vdc Min. Max. 40 120 -120 -40 120 200 o (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 o o Note 2: All the parameters are tested under the 25 C only. The operation temperature (-40 C to 125 C) is guaranteed by design, it is typical value. Note 3: 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. Anachip Corp. www.anachip.com.tw Rev.1.1 Sep 30, 2005 3/5 AH342 Active High/Low Complementary Output Hall-effect Latch Vcc DOB ( Output Voltage ) ( Output Voltage ) DO ( off-state ) Bhy Turn off Turn on 0 Bop Turn oFF Vsat Vsat Brp Bhy Turn on Vcc ( on-state ) ( on-state ) N ( off-state ) S Brp N ( Magnetic flux density B ) 0 Bop S ( Magnetic flux density B ) Performance Characteristics (SIP4) 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 is s ip 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 ) Note：SIP-4L package. Operating Characteristics S Marking side ( Output Voltage ) DO N ( SIP4 ) Vcc Vd High Bhy Low Vsat Brp N 0 Bop S ( Magnetic flux density ) Anachip Corp. www.anachip.com.tw Rev.1.1 Sep 30, 2005 4/5 AH342 Active High/Low Complementary Output Hall-effect Latch Marking Information ( Top View ) 342 Part Number X XX A x Wafer Lot ID: a~z is lead-free products ~ Nth week: 01~52 Year: "1" = 2001 "2" = 2002 Package Information Active Area Depth Package Sensor Location Marking side 1.9714mm + 0.1mm 1.0460mm + 0.1mm 1 0.7mm 2 3 4 Package Dimension o 5 -7 o 14.25mm +/-1.25mm 1.55mm +/-0.1mm o o 3 -5 0.46mm +/-0.03mm 342 5.22mm +/-0.1mm 4.20mm +/-0.1mm o 0.38mm +/-0.03mm o 3.65mm +/-0.1mm 0.30mm +/-0.1mm 5 -7 o 3 -5 0.41mm +/-0.03mm 3.81mm +/-0.03mm 1.03mm +/-0.1 o 0.2mm Max. 1.42mm+/-0.1mm Anachip Corp. www.anachip.com.tw 1.27mm +/-0.03mm Rev.1.1 Sep 30, 2005 5/5