Green AH276Q COMPLEMENTARY OUTPUT HALL EFFECT LATCH Description Pin Assignments AH276 are integrated Hall sensors with output drivers, mainly ( Top View ) designed for electronic commutation of brush-less DC Fan. This IC internally includes the regulator, protecting diode, Hall plate, amplifier, comparator, and a pair of complementary open-collector outputs (DO, 276 DOB). 1 : Vcc While the magnetic flux density (B) is larger than operate point (Bop), 2 : DO DO will turn on (low), and meanwhile DOB will turn off (high). Each output is latched until B is lower than release point (Brp), and then 3 : DOB DO, DOB transfer each state. For DC fan application, sometimes need to test power reverse 1 2 3 4 4 : GND connection condition. Internal diode only protects chip-side but not for coil-side. If necessary, add one external diode to block the reverse current from coil-side. Features Applications On-chip Hall sensor with two different sensitivity and hysteresis settings for AH276 Built-in protecting diode only for chip reverse power connecting -20°C to +85°C operating temperature Lead Free Package: SIP-4L SIP-4L: Available in “Green” Molding Compound (No Br, Sb) Lead-Free Finish; RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. “Green” Device (Note 3) Notes: Dual-coil Brush-less DC Motor Dual-coil Brush-less DC Fan Revolution Counting Speed Measurement 1. EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. All applicable RoHS exemptions applied. 2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free. 3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and <1000ppm antimony compounds. Typical Applications Circuit Brush-less DC Fan AH276Q Document number: DS31066 Rev. 6 - 2 1 of 6 www.diodes.com September 2013 © Diodes Incorporated AH276Q Pin Descriptions Pin Name P/I/O Pin # VCC P 1 Power Supply Input Function DO DOB GND O O P 2 3 4 Output Pin Output Pin Ground Functional Block Diagram 1 V cc DO 2 REG. H a ll P la te DOB Amp 3 GND 4 Absolute Maximum Ratings (@TA = +25°C, unless otherwise specified.) Symbol Note: Rating Unit VCC Supply Voltage Parameter 20 V VRCC B Reverse VCC Polarity Voltage -20 Magnetic Flux Density Io Output “on” Current (Note 3) V Unlimited Continuous Hold Peak (Start Up) 0.4 0.5 0.7 -65 ~ +150 A C mW Ts Storage Temperature Range PD Package Power Dissipation (SIP-4L) 550 TJ Maximum Junction Temperature +150 C JA JC Thermal Resistance Junction-to-Ambient (SIP-4L) 227 C/W Thermal Resistance Junction-to-Case (SIP-4L) 49 C/W 3. PD shall be within Safety Operation Area. TA TJ Tc JA JC AH276Q Document number: DS31066 Rev. 6 - 2 2 of 6 www.diodes.com September 2013 © Diodes Incorporated AH276Q Recommended Operating Conditions (@TA = +25°C, unless otherwise specified.) Symbol Note: Parameter Conditions Min Max Unit VCC Supply Voltage (Note 4) Operating 3.5 20 V TA Operating Ambient Temperature Operating -20 +85 C 4. The output DO/DOB is switching as magnetic field change (S>300G, N<-300G). Electrical Characteristics (@TA = +25°C, unless otherwise specified.) Symbol Parameter VZ Min Typ Max Unit Output Zener Breakdown Conditions — 35 — V Output Saturation Voltage VCC = 14V, IL = 400mA — 0.6 0.9 V ICEX Output Leakage Current VCE = 14V, VCC = 14V — <0.1 10 µA ICC Supply Current VCC = 20V, Output Open 7 16 25 mA VCE(SAT) Magnetic Characteristics (Note 5) (@TA = +25°C, VCC = 14V, unless otherwise specified.) A grade Symbol Bop Brp Bhy Characteristic Operate Point Release Point Hysteresis Min 10 -50 — Typ — — 75 Max 50 -10 — Unit Gauss Gauss Gauss Symbol Characteristic Min Typ Max Unit Bop Brp Bhy Operate Point Release Point Hysteresis 5 -70 — — — 75 70 -5 — Gauss Gauss Gauss Symbol Bop Brp Characteristic Operate Point Release Point Min — -100 Typ — — Max 100 — Unit Gauss Gauss Bhy Hysteresis — 75 — Gauss B grade C grade Note: 5. Magnetic characteristics are for design information, which will vary with supply voltage, operating temperature and after soldering. Vcc DOB ( Output Voltage ) ( Output Voltage ) DO ( off-state ) Bhy Turn off Turn on 0 Bop S N ( Magnetic flux density B ) AH276Q Document number: DS31066 Rev. 6 - 2 Turn oFF Vsat Vsat Brp Bhy Turn on Vcc ( on-state ) ( on-state ) N ( off-state ) Brp 0 Bop S ( Magnetic flux density B ) 3 of 6 www.diodes.com September 2013 © Diodes Incorporated AH276Q 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 Power Dissipation Curve PD (mW) 600 500 400 300 200 100 0 0 25 50 75 85 100 125 150 TA (°C) Ordering Information Note: Part Number Package Code Packaging AH276Q-PL-B-A AH276Q-PL-B-B AH276Q-PL-B-C AH276Q-PG-B-A AH276Q-PG-B-B AH276Q-PG-B-C P P P P P P SIP-4L SIP-4L SIP-4L SIP-4L SIP-4L SIP-4L Quantity 1000 1000 1000 1000 1000 1000 Bulk Part Number Suffix -B -B -B -B -B -B Magnetic Characteristics A B C A B C 6. Please refer to page 3 (Magnetic Characteristics table). AH276Q Document number: DS31066 Rev. 6 - 2 4 of 6 www.diodes.com September 2013 © Diodes Incorporated AH276Q Marking Information ( Top View ) Part Number 276Q Y WW X Y : Year : 0~9 WW : Week : 01~52, "52" represents 52 and 53 week X : Internal Code : a~z : Lead Free A~Z : Green SIP-4L Package Outline Dimensions (All dimensions in mm.) Please see AP02002 at http://www.diodes.com/datasheets/ap02002.pdf for latest version. a1 a2 SIP-4 Dim Min Max A 5.12 5.32 B 4.10 4.30 C 3.55 3.75 D 0.38 0.44 E 0.35 0.41 F 1.24 1.30 H 1.32 1.52 I 1.45 1.65 J 0.00 0.2 K 13.00 15.5 L 0.63 0.83 a1 5° 3 a2 4° 7° All Dimensions in mm K C E I H L D AB F J Marking side 1.95士0.1mm 1.1士0.1mm 1 0.7 mm Document number: DS31066 Rev. 6 - 2 3 4 Sensor Location Active Area Depth AH276Q 2 5 of 6 www.diodes.com September 2013 © Diodes Incorporated AH276Q IMPORTANT NOTICE DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION). Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further notice to this document and any product described herein. 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