US letter electronic push MAX256 3W original side transformer H-bridge driver for isolating power supply

MAX256 overview The MAX256 is an integrated primary side controller and H-bridge driver for isolating the power supply circuit. The device contains a plate oscillator, a protection circuit, and an internal FET driver that provides up to 3W power for the main windings of the transformer. The MAX256 can use an internal programmable oscillator operating mode or by external clock to improve EMI performance. Regardless of which clock source is used, the internal trigger ensures that the duty cycle is fixed to 50%, thereby preventing DC current from flowing into the transformer. The MAX256 is powered by + 5V or + 3.3V single power supply and has an undervoltage locking function to achieve a controlled startup process. The device prevents H-bridge MOSFET cross-conducting through the primary switching mode. In high temperatures, the thermal shutdown circuit also provides additional protection to avoid devices damage. The MAX256 uses an 8-pin, hot-enhanced SO package. The device can operate within the automotive level temperature range (-40 ° C to + 125 ° C). Key feature of MAX256 It can provide up to 3W power for transformers in isolation power. + 5V or + 3.3V single power supply Internal oscillator mode can be set by resistance programming External clock pattern with watchdog Prohibit mode Undervoltage lock Thermal shutdown MAX256 application / use Industrial process control Isolated communication link Isolated power supply Medical device telecommunications MAX256 typical working circuit, technology area Heilind won the title of "2017 Huaqiang Electronic Network Quality Supplier" Tas5634300W stereo PurePath (TM) HD digital input efficient power level TAS2557 5.7W D-class audio amplifier with H-class boost and speaker detection function Ruckus NetWorks appointed Deng Weidong for the general manager of China China Site Electronic Technology Forum - Power Technology Practice Seminar held in Wuhan

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