IXMS150PSI屬于集成電路（IC）的PMIC-穩(wěn)壓器-DCDC開關式控制器。由艾賽斯制造生產的IXMS150PSIDC-DC 開關控制器PMIC（電源管理集成電路）DC 到 DC 開關式控制器是用于高效率電路的穩(wěn)壓 IC，其配置為生成高于（突升或步升）或低于（突降或步降）輸入電源的輸出電源電壓。其他拓撲結構可能包括：降壓-升壓、反激、正激、Cuk、SEPIC、全橋、半橋和推挽式。這些器件不同于需要最小電壓并“燒盡”多余電壓的線性穩(wěn)壓器。

High Performance Dual PWM Microstepping Controller

The IXMS150 is a high performance monolithic 2-channel PWM controller. Implemented in CMOS, the low power IXMS150 precisely controls the current in each of two separate power H-bridge drivers using unique sampling and signal processing techniques. Each channel contains an error amplifier, PWM, feedback amplifier, and protection circuitry. Protection features include over/excess current shutdown, min/max duty cycle clamp, under voltage lockout, dead time insertion, and a shutdown input for over-temp or other external fault circuitry. Other features include a common oscillator, feedforward circuit for motor supply compensation, and an onchip negative bias generator.

特性 Features

? Two complete, synchronous PWMs

? Command input range ±2.0 V full scale

? ±0.625 V full scale current feedback signal

? 1 gain matching between channels without external trim

? 1.6 gain linearity

? Feedforward to compensate for motor supply variations

? Only one sense resistor per H-bridge needed

? Onboard two level current limiting

? Undervoltage lockout assures proper behavior on power up and power down

? Enable input for external over temperature or fault circuit input

? Duty cycles limited for AC coupled gate drive

? Wide range of built in dead time.

? On board negative power supply generator

? Single +12 V supply operation

? 24-pin DIP package

Applications

? Full, half quarter, or microstepping 2-phase step motor position controller

? Dual DC servo motor torque controller

? Solenoid actuator force controller

? General 2-channel currentcommanded PWM control