AH266K-PG-B-A 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. AH266K-PG-B-A 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.
Feature
- On-Chip Hall Plate
- Operating Voltage: 4V~28V
- Output Current: 400mA (Continuous, 25oC)
- Reverse Protection Diode Only for Chip Reverse Power Connecting
- 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
Applications
- Dual-Coil Brush-Less DC Motor
- Dual-Coil Brush-Less DC Fan
- Revolution Counting
- Speed Measurement
