BDH8203 全极微功耗霍尔开关

产品概述：

The BDH8203 is fabricated from mixed signal CMOS technology. It internally includes an on-chip Hall voltage generator, a voltage regulator for operation with supply voltages of 1.65 to 5.5V, a sleep/awake logic for low power consumption, temperature compensation circuitry, small-signal amplifier, Hall sensor with dynamic offset cancellation system, Schmitt trigger and an open-drain output. Both south pole and north pole of sufficient strength will turn the sensor output on. The output will be turned off under no magnetic field. While the magnetic flux density (B) is larger than operating point (Bop), the output will be turned on (low), the output is held until B is lower than release point (Brp), and then turned off.

The total power consumption in normal operation is typically 15μW with a 3.3V power source. Operating temperature range of the BDH8203 is from -40°C to 85°C.

特征：

CMOS Hall IC Technology

Strong RF noise protection

1.65 to 5.5V for battery-powered applications

Micropower consumption

Multi Small Size option

Low sensitivity drift in crossing of Temp.range Ultra Low power consumption at 5uA (Avg).

High ESD Protection, HBM> +/- 4KV(min) Totem-pole output.

Package: TO-92S, SOT23-3.

应用电路：

应用：

Solid state switch

Handheld Wireless Handset Awake Switch ( Flip Cell/PHS Phone/Note Book/Flip Video Set)

Magnet proximity sensor for reed switch replacement in low duty cycle applications

Notebook / PAD PC / PDA