AH266 HIGH VOLTAGE HALL EFFECT LATCH General Description Features • • • • • • • • On-Chip Hall Plate Operating Voltage: 4V~28V o Output Current: 400mA (Continuous, 25 C) Reverse Protection Diode Only for Chip Reverse Power Connecting (Note 1) Output Protection Zener Breakdown Vz = 62V (Typ.) Lead Free package: SIP-4L SIP-4L: Available in “Green” Molding Compound (No Br, Sb) Lead Free Finish/ RoHS Compliant (Note 2) AH266 is an integrated Hall sensor with output drivers designed for electronic commutation of brush-less DC motor applications. The device includes an on-chip Hall voltage generator for magnetic sensing, a comparator that amplifies the Hall voltage, a Schmitt trigger to provide switching hysteresis for noise rejection, and complementary Darlington open-collector drivers for sinking large current loads. An internal band-gap regulator is used to provide temperature compensated supply voltage for internal circuits and allows a wide operating supply range. If a magnetic flux density (B) is larger than operation point (Bop), DO will turn on (low) and DOB will turn off (high). The output state is latched prior to reaching release point (Brp). If B< Brp, DO will turn off and DOB will turn on. AH266 is rated for operation over o o temperature range from -20 C to 85 C and voltage range from 4V to 28V. The devices are available in low cost die forms or rugged 4 pin SIP packages. Applications • • • • Dual-Coil Brush-Less DC Motor Dual-Coil Brush-Less DC Fan Revolution Counting Speed Measurement Ordering Information AH 266 K - P X - B - X Version Package Lead Free Packing Magnetic Characteristics K P : SIP-4L L : Lead Free G : Green B : Bulk A or B Device Lead-free Lead-free AH266K-PL-B-A AH266K-PL-B-B AH266K-PG-B-A AH266K-PG-B-B Notes: Package Code P P P P Packaging (Note 3) SIP-4L SIP-4L SIP-4L SIP-4L Quantity 1000 1000 1000 1000 Bulk Part Number Suffix -B -B -B -B Magnetic Characteristics A B A B 1. Protection diode only exists at power pin (1, 4) output, not including pin (2, 3). 2. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at http://www.diodes.com/products/lead_free.html. 3. 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. AH266 Rev. 4 1 of 8 www.diodes.com MARCH 2009 © Diodes Incorporated AH266 HIGH VOLTAGE HALL EFFECT LATCH Pin Assignment ( Top View ) 266 1 2 3 4 SIP-4L Pin Descriptions Pin Name P/I/O Pin # VCC DO DOB GND P O O P 1 2 3 4 Description Power Supply Input Output Pin Output Pin Ground Block Diagram VCC 1 DO REG. Hal l Plate Amp AH266 Rev. 4 DOB 2 of 8 www.diodes.com MARCH 2009 © Diodes Incorporated AH266 HIGH VOLTAGE HALL EFFECT LATCH Typical Application Circuit 266 1 2 Coil 1 3 Coil 2 4 Vcc Brush-Less DC Fan Absolute Maximum Ratings Symbol Vcc Vout (off) Io (con) Io (hold) Io (peak) B TST PD θJC (TA = 25oC) Parameter Supply Voltage Output “OFF ” Voltage Output “ON” Current Magnetic Flux Density Storage Temperature Range Power Dissipation (Note 6) Thermal Resistance Junction-to-Case Rating Unit 28 28 400 (Note 5) 500 700 Unlimited -65 ~ +150 550 227 V V mA mA mA Gauss °C mW °C/W Recommended Operating Conditions Symbol VCC TA Notes: Characteristic Conditions Supply Voltage Operating Ambient Temperature (Note 7) Operating Operating Min Max Unit 4 -20 28 85 V °C 4. This application circuit can’t protect reverse coil current if power is connecting reverse. 5. Io (con) is 150 mA at 85°C. 6. See Performance Characteristics for other conditions. 7. Shall not exceed PD and Safety Operation Area. AH266 Rev. 4 3 of 8 www.diodes.com MARCH 2009 © Diodes Incorporated AH266 HIGH VOLTAGE HALL EFFECT LATCH Electrical Characteristics Symbol Characteristic Vz Output Zener Breakdown Output Saturation Voltage Output Leakage Current Supply Current Output Rise Time Output Falling Time Switch Time Differential Vce (SAT) Icex Icc tr tf Δt (TA = 25°C) Conditions Output Turn off Vcc = 24V, IC = 400mA Vce = 24V, VCC = 24V Vcc = 24V, Output Open Vcc = 24V, RL = 820Ω, CL = 20pF Vcc = 24V, RL = 820Ω, CL = 20pF Vcc = 24V, RL = 820Ω, CL = 20pF Min Typ. Max Unit 54 － － － － － － 62 1.1 < 0.1 5 1.0 1.0 3.0 70 1.5 10 10 5 1.5 10 V V µA mA µs µs µs Test Circuit 24V 266 V out 1 (DO) RL1 V out 2 (DOB) RL2 CL1 CL2 RL1 = RL2 = 820 Ohm CL1 = CL2 = 20 pF AH266 Rev. 4 4 of 8 www.diodes.com MARCH 2009 © Diodes Incorporated AH266 HIGH VOLTAGE HALL EFFECT LATCH Magnetic Characteristics A grade Symbol (TA = +25oC) Characteristic Bop Brp Bhy Operation Point Release Point Hysteresis B grade Symbol Characteristic Bop Brp Bhy Operation Point Release Point Hysteresis Typ. 10 -70 - 80 70 -10 - Min Typ. Max Unit -100 - 80 100 - Gauss Gauss Gauss Bhy Turn off Turn off VSAT Brp Bhy Turn on VSAT Bop 0 Gauss Gauss Gauss DO Output Voltage in Volts Output Voltage in Volts DOB Turn on (1mT = 10 Gauss) Max Unit Min Brp Magnetic Flux Density in Gauss Bop 0 Magnetic Flux Density in Gauss 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 owe r Dissipa tio n C urve P D (m W ) 6 00 5 00 4 00 3 00 2 00 1 00 0 0 15 30 45 60 75 859 0 1 05 1 20 1 35 1 50 T A (°C) AH266 Rev. 4 5 of 8 www.diodes.com MARCH 2009 © Diodes Incorporated AH266 HIGH VOLTAGE HALL EFFECT LATCH Operation Characteristics S Marking Side (Output Voltage) DO VCC Vd High Bhy Low N (SIP-4L) VSAT N Brp 0 Bop S (Magnetic Flux Density) Marking Information ( Top View ) Part Number 266X Y WW X X : Version : K 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 AH266 Rev. 4 6 of 8 www.diodes.com MARCH 2009 © Diodes Incorporated AH266 HIGH VOLTAGE 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 AH266 Rev. 4 7 of 8 www.diodes.com MARCH 2009 © Diodes Incorporated AH266 HIGH VOLTAGE 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. AH266 Rev. 4 8 of 8 www.diodes.com MARCH 2009 © Diodes Incorporated