The YH279 is an integrated Hall sensor with output driver designed for electronic commutation of brush-

less DC motor applications. The device includes an on-chip Hall sensor for magnetic sensing, an amplifier that amplifies the Hall voltage, a Schmitt trigger to provide switching hysteresis for noise rejection, a tem-perature compensation circuit to compensate the tem-perature drift of Hall sensitivity and two complementary open-collector drivers for sinking large load current. It also includes an internal band-gap regulator which is used to provide bias voltage for internal circuits.

Placing the device in a variable magnetic field, if the magnetic flux density is larger than threshold B_OP, the

pin DO will be turned low (on) and pin DOB will be turned high (off). This output state is held until the magnetic flux density reverses and falls below B_RP,

then causes DO to be turned high (off) and DOB turned low (on).

·z On-Chip Hall Sensor

·z 4.0V to 18V Supply Voltage

·z 250mA (avg) Output Sink Current

·z Build in Over Zener Diodes Protect Outputs ·z -20^oC to 85^oC Operating Temperature

·z  Low Profile TO-92S (SIP-3L) Package

Applications

·z Dual-Coil Brushless DC Motor

·z Dual-Coil Brushless DC Fan

·z Revolution Counting

·z Speed Measurem

企业名：深圳裕辉美科技有限公司

类型：经销商

电话： 0755-84660586

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地址：广东深圳龙城街道办天安数码新城1栋B座1003-2