AH266K-PG-B-B Diodes Incorporated

Green AH266 HIGH VOLTAGE HALL EFFECT LATCH Description Pin Assignments AH266 is an integrated Hall sensor with output drivers designed for electronic commutation of brush-less DC motor applications. The ( Top View ) 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 266 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 temperature range from -20C to +85C and voltage range from 4V to 28V. The devices are available in low cost die forms or rugged 4 pin SIP 1243 packages. SIP-4 Features Applications On-Chip Hall Plate Dual-Coil Brushless DC Motor Operating Voltage: 4V to 28V Dual-Coil Brushless DC Fan Output Current: 400mA (Continuous, +25C) Revolution Counting Reverse Protection Diode Only for Chip Reverse Power Speed Measurement Connecting (Note 1) Output Protection Zener Breakdown V = 62V (Typ.) Z Lead Free package: SIP-4 SIP-4: Available in Green Molding Compound (No Br, Sb) RoHS Compliant (Note 2) Lead-Free Finish RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. Green Device (Note 3) Notes: 1. EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. All applicable RoHS exemptions applied. 2. See AH266 Pin Descriptions Pin Name P/I/O Pin Description V P 1 Power Supply Input CC DO O 2 Output Pin DOB O 3 Output Pin GND P 4 Ground Functional Block Diagram V CC 1 DO REG. Hal l Plate Amp DOB Absolute Maximum Ratings ( T = +25C, unless otherwise specified.) A Symbol Parameter Rating Unit Supply Voltage 28 V V CC Output OFF Voltage 28 V V out (off) I 400 (Note 5) mA O (con) I Output ON Current 500 mA O (hold) I 700 mA O (peak) B Magnetic Flux Density Unlimited Gauss T Storage Temperature Range -65 to +150 C ST Power Dissipation (Note 6) 550 mW P D Thermal Resistance Junction-to-Ambient (SIP-4) 227 C/W JA Thermal Resistance Junction-to-Case (SIP-4) 49 C/W JC 2 of 7 December 2013 AH266 Diodes Incorporated www.diodes.com Document number: DS30876 Rev. 5 - 2