AH266 Datasheet | Diodes Incorporated

  Green HIGH VOLTAGE HALL EFFECT LATCH Description AH266 is an integrated Hall sensor with output drivers designed for electronic mutation of brush-less DC motor applications. The device includes an on-chip Hall voltage generator for magnetic sensing, a parator that amplifies the Hall voltage, a Schmitt trigger to provide switching hysteresis for noise rejection, and plementary Darlington open-collector drivers for sinking large current loads. An internal band-gap regulator is used to provide temperature pensated 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 -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. Pin Assignments ( Top View ) 266 12 3 4 SIP-4 Features - On-Chip Hall Plate - Operating Voltage: 4V to 28V - Output Current: 400m A (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-4 - SIP-4: Available in “Green” Molding pound (No Br, Sb) - Ro HS pliant (Note 2) - Lead-Free Finish; Ro HS pliant (Notes 1 & 2) - Halogen and Antimony Free. “Green” Device (Note 3) Applications - Dual-Coil Brushless DC Motor - Dual-Coil Brushless DC Fan - Revolution Counting - Speed Measurement Notes: 1. EU Directive 2002/95/EC (Ro HS) & 2011/65/EU (Ro HS 2) pliant. All applicable Ro HS exemptions applied. 2. See http://.diodes./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...