MIC38C42BM

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The MIC38C42BM is an AC/DC converter and offline switcher. It is suitable for a wide range of applications such as microprocessor, power supply, computer peripheral and home appliance, as well as other suitable applications. The device provides stable output voltage regulation, wide input voltage and low standby power consumption.

The core component of the MIC38C42BM is a high-efficiency, high-temperature, low-power metal-oxide semiconductor field effect transistor (MOSFET). The MOSFET switches on and off to regulate the output voltage. The switching frequency is set by an internal oscillator. The MIC38C42BM is capable of executing several AC/DC topologies with the fewest external components. It allows for the extinction of extra components, resulting in a compact design.

The MIC38C42BM provides an output voltage accuracy of ±1%, over the full input voltage range and line/load changes. It is capable of meeting a wide range of output power requirements up to 3.2A. The MIC38C42BM employs cycle-by-cycle current limiting for short-circuit protection, and thermal shutdown to protect against overheating. It features wide operating temperature from -40ºC to +150ºC.

The MIC38C42BM is capable of configuring peak current to reduce total energy associated with audible noise and electromagnetic interference (EMI). Its low quiescent current and power save mode allows for a lower standby power consumption. The MIC38C42BM also features a duty cycle adjust (DCA) pin, which allows for an adjustable pulse width modulation duty cycle.

The MIC38C42BM has two operating modes: one is fixed frequency on/off control (FFOC) mode and the other is Pulse Frequency Modulation (PFM) mode. In FFOC mode, the device operates in fixed frequency, with no limitation on duty cycle, but with high line harmonic. In the PFM mode, switching frequency is adjusted to reduce switching losses in order to maintain higher efficiency over the entire load range. This mode also reduces audible noise and EMI.

In summary, MIC38C42BM is a MOSFET-based AC/DC converter and offline switcher. It enables high efficiency and low standby power consumption by means of an adjustable pulse width modulation duty cycle, wide operating temperature range, peak current limit and cycle-by-cycle current limiting for short-circuit protection. The device can execute various AC/DC topologies and has two operating modes: fixed frequency on/off control (FFOC) mode and Pulse Frequency Modulation (PFM) mode.

The specific data is subject to PDF, and the above content is for reference