AH337 Single Phase Hall Effect Switch Features General Description - 4.2V to 28V DC operation voltage - Temperature compensation - Wide operating voltage range - Open drain pre-driver - 25mA maximum sinking output current. - Package: SIP3, SOT23 AH337 is an switched Hall-Effect IC which is for contactless switching applications. The device includes an on-chip Hall voltage generator for magnetic sensing, an amplifier that amplifies the Hall voltage, a schmitt trigger to provide switching hysteresis for noise rejection, and an open-drain output. The bandgap regulator allows a wide operating voltage range. If a magnetic flux density larger than threshold Bop, DO is turned on(low). The output state is held until a magnetic flux density reversal falls below Brp causing DO to be turned off (high). Applications - VCD/DVD loader, CD/DVD ROM - Cover detector - Speed measurement - Home appliances - Home safety Pin Assignment 337 Pin Descriptions 2 (Top view) 337 1 : Vdd 1 3 Name P/I/O Pin # Description Vdd GND OUT P P O 1 2 3 Positive Power Supply Ground Output Pin 2 : GND (SOT23 package) 3 : OUT 1 2 3 (SIP package) Ordering Information AH337 X - X X X Wafer Body Blank or A~Z : if necessary to specify Package P: SIP3 W: SOT23 Lead L : Lead Free Packing Blank : Bulk A : Spread-leg ammo pack for SIP-3L; Tape & Reel for SOT23 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.1.2 Mar. 29, 2006 1/8 AH337 Single Phase Hall Effect Switch Typical Application Circuit 4.2V ~28V RL Vdd OUT AH337 Digital Output GND Functional Block Diagrams Vdd 1 Regulator Hall plate 23 OUT 2 GND Amp Anachip Corp. www.anachip.com.tw Rev.1.2 Mar. 29, 2006 2/8 AH337 Single Phase Hall Effect Switch Absolute Maximum Ratings Characteristics Supply Voltage Magnetic Flux Density Output OFF Voltage Output “ON” Current Operating Temperature Range Storage Temperature Range Maximum Junction Temp. Package Power Dissipation ( at Ta=25oC ) Symbol Vdd B VDS Id Ta Ts Tj Continuous SIP-3L SOT23-3L Values 30 Unlimited 30 25 -40~+125 -65~+150 150 550 230 Pd Unit V V mA °C °C °C mW mW Recommended Operating Conditions ( Ta=25oC ) Paramter Supply Voltage Symbol Vdd Conditions Rating 4.2*~28 Operating Unit V *Note: The output of IC will be switched after the supply voltage is over 4.2V, but the magnetic characteristics won't be normal until the supply is over 4.5V. Electrical Characteristics (Ta=+ 25°C, Vdd=12V) Characteristic Symbol Test Conditions Output Saturation Voltage VDS(sat) Iout=10mA, B > Bop Output Leakage Current Ioff B < Brp Supply Current Idd Output Open Output Rise Time tr RL=820Ω, CL=20pF Output Falling Time tf RL=820Ω, CL=20pF Min - Typ 300 <0.1 2 0.1 0.1 Max 400 10 4 1 1 Units mV uA mA us us Test Circuit 12V OUT RL RL=820 Ohm CL=20 pF CL Test Circuit Anachip Corp. www.anachip.com.tw Rev.1.2 Mar. 29, 2006 3/8 AH337 Single Phase Hall Effect Switch Magnetic Characteristics Symbol Bop Brp Bhys S Min. 90 30 - S Marking side Marking side N N ( SOT23 ) ( SIP3 ) (1mT=10Gauss) Max. Unit 150 Gauss 90 Gauss Gauss Typ. 120 60 60 Output ( Output Voltage ) Parameter Operate Point Release Point Hysteresis (Ta=25°C, Vdd=4.5V to 28V) Vdd ( off-state ) Turn off B hy Turn on ( on-state ) Vsat Vsat 0 B rp B op ( Magnetic flux density B ) Performance Characteristics (SIP3) 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 rv e P d (m W ) 600 500 400 300 200 100 0 0 25 50 75 100 125 150 T a (。 C ) Anachip Corp. www.anachip.com.tw Rev.1.2 Mar. 29, 2006 4/8 AH337 Single Phase Hall Effect Switch Performance Characteristics (SOT23-3) Ta (°C) Pd (mW) 25 230 50 184 60 166 70 147 P d (m W ) 80 129 90 110 100 92 110 74 120 55 125 46 130 37 140 18 150 0 P o w e r D is s ip a tio n C u rv e 300 200 100 0 0 25 50 75 100 125 150 T a (。 C ) Marking Information (1) SIP3 (2) SOT23 (Top View) 337 YWW X (Top View) ID Code: A~Z: Non-Lead Free a~z : Lead Free XX YM X Date code Y : Year WW : Nth week Anachip Corp. www.anachip.com.tw ID code A~Z: Non-Lead Free a~z: Lead Free P1:AH337 Date code Y : Year M :Month(A~L) Rev.1.2 Mar. 29, 2006 5/8 AH337 Single Phase Hall Effect Switch Package Information (unit: mm) (1) Package Type: SIP-3L for Bulk Pack 0.51mm NOM 2.00mm 1.15mm BRANDED SURFACE 1 2 3 Sensor Location Active Area Depth Package Dimension 45º 0.38mm 0.7mm 1.57mm 1.47mm 0.41mm 0.41mm 3 1.27mm 4.17mm 4.04mm 2 1 45º 3.10mm 2.97mm Anachip Corp. www.anachip.com.tw 1.82 mm 15.50mm 13.00mm Rev.1.2 Mar. 29, 2006 6/8 AH337 Single Phase Hall Effect Switch Package Information (Continued) (2) Package Type: Spread leg SIP-3L for Ammo-Pack only △p △p H B A L W1 W P2 D0 F1 F2 Po △h D △h A A n s ic h t A -B v ie w A -B T1 Symbol A D b2 D0 F1 F2 H △h L P0 P2 △p T T1 W W1 T b2 Dimensions In Millimeters Min. Nom. Max. 2.80 3.00 3.20 3.90 4.10 4.30 0.33 0.38 0.42 3.80 4.00 4.20 2.35 2.55 2.75 2.45 2.55 2.85 20 1 11 12.2 12.7 13.2 5.95 6.35 6.75 1 0.55 1.42 17.5 18.0 18.5 5.5 6.0 6.5 Dimensions In Inches Min. Nom. Max. 0.110 0.118 0.125 0.153 0.161 0.169 0.012 0.014 0.016 0.149 0.157 0.165 0.092 0.100 0.108 0.096 0.100 0.112 0.787 0.039 0.433 0.480 0.5 0.519 0.234 0.25 0.265 0.039 0.021 0.055 0.688 0.708 0.728 0.216 0.236 0.255 Package Information (Continued) Anachip Corp. www.anachip.com.tw Rev.1.2 Mar. 29, 2006 7/8 AH337 Single Phase Hall Effect Switch (3) Package Type: SOT23-3L D C 2 HE E ( Sensing point ) GAUGE PLANE 0.8mm 1 θ L 3 L1 1.45mm e1 VIEW C e b(3x) Symbol A A1 A2 b C D E HE L L1 M e e1 θ θ1 θ2 θ 2(4x) Dimensions In Millimeters Min. 1.05 0.05 1.00 0.25 0.08 2.70 1.50 2.60 0.30 0.50 0.73 1.80 0.85 0o 3o 6o Nom. 1.10 2.90 1.60 2.80 0.60 0.78 1.90 0.95 5o 5o 8o Max. 1.35 0.15 1.20 0.50 0.20 3.00 1.70 3.00 0.60 0.70 0.83 2.00 1.05 10o 7o 10o Anachip Corp. www.anachip.com.tw A SEE VIEW C A1 A2 M θ 1(4x) Dimensions In Inches Min. 0.041 0.002 0.039 0.010 0.003 0.106 0.059 0.102 0.012 0.020 0.029 0.071 0.033 0o 3o 6o Nom. 0.043 0.114 0.063 0.110 0.024 0.031 0.075 0.037 5o 5o 8o Max. 0.053 0.006 0.047 0.020 0.008 0.118 0.067 0.118 0.024 0.028 0.033 0.079 0.041 10o 7o 10o Rev.1.2 Mar. 29, 2006 8/8