20V 350mA 直流马达驱动
功能特点
产品名称：20V 350mA 直流马达驱动
2 Phase DC Motor Drive IC
产品型号：H211A
产品描述：
The H211, a one-chip composed of hall sensor and output coil drivers, applied to 2-phase brush-less DC motor. The device includes an on-chip Hall sensor for magnetic sensing, an amplifier that amplifies the Hall voltage, a Schmitt trigger to provide switch hysteresis for noise rejection, atemperature compensation circuit to compensate the temperature drift of Hall sensitivity, 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 cicuits.
The high sensitivity of Hall Effect sensor is suitable for motors from mini-type CPU coolers to blowers and DC fans. Typical operation current is 0.3A with wide range of operating voltage. FG single, an open collector, provides a square waveform output for the detection of the motor speed.
Place the device in a variable magnetic field, while the magnetic flux density is larger than threshold Bop, NO will be turned on (low) and So(and FG) will be turned off(high). This output state is held till the magnetic flux density reversal falls below BRP causing NO to be turned off(high) and SO(and FG) turned on(low).
产品特点：
On-chip Hall Sensor/Drivers
4V to 20V Supply voltage
Output Sink Current up to 0.4A
Low Quiescent Supply Current under 5mA
Built-in FG Output
Low Profile TO-94(SIP-4L) Package
参数：
Supply Vol. 供应电压：20V
Output Cur. 输出电流：Max. 350mA
Output Saturation Vol 输出饱和电压：Max.1500mV
Operate Point 工作点：Max.50G
Release Point 释放点：Min.-50G
RoSH：PF(无铅)/HF(无卤)
Package : SIP-4
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stm32/stm8
电源技术
嵌入式系统
MEMS传感器
FPGA/CPLD
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