AH266中文资料Dual Complementary Output Hall Effect Latch with Reverse Blocking Diode on Supply Pin数据手册Diodes规格书

描述 Description

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 temperature range from -20oC to 85 oC and voltage range from 4V to 28V. The devices are available in low cost die forms or rugged 4 pin SIP packages.

特性 Features

On-Chip Hall PlateOperating Voltage: 4V~28VOutput Current: 400mA (Continuous, 25oC)Reverse Protection Diode Only for Chip Reverse Power ConnectingOutput Protection Zener Breakdown Vz = 62V (Typ.)Lead Free package: SIP-4LSIP-4L: Available in “Green” Molding Compound (No Br, Sb)Lead Free Finish/ RoHS Compliant

应用 Application

Dual-Coil Brush-Less DC MotorDual-Coil Brush-Less DC FanRevolution CountingSpeed Measurement