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Part: MAX5077
Category:
Power Management
-> Battery Management
Description: Push-Pull FET Driver with Integrated Oscillator and Programmable Clock Output <<<>>>The MAX5077 is a +4.5V to +15V push-pull, current-fed topology driver subsystem with an integrated oscillator used in telecom module power supplies. The device drives two MOSFETs connected to a center-tapped transformer primary providing secondary-side, isolated, negative or positive voltages. The MAX5077 features a programmable accurate integrated oscillator with a synchronizing clock output to synchronize an external PWM regulator. A single external resistor programs the internal oscillator frequency from 50kHz to 1.5MHz. <<<>>>The MAX5077 incorporates dual MOSFET drivers with ±3A peak drive currents and 50% duty cycle. The MOSFET drivers generate complementary signals to drive external ground-referenced n-channel MOSFETs. The MAX5077 clock output frequency is programmable by logic inputs to set the clock output to 1x, 2x, or 4x the MOSFET's driver frequency. <<<>>><<<>>>The MAX5077 is available in a 14-pin exposed pad TSSOP package and is specified over the -40°C to +125°C operating temperature range<<<>>> <<<>>><<<>>>Dedicated Current-Fed, Push-Pull Driver Subsystem <<<>>>Oscillator Frequency Programmable from 50kHz to 1.5MHz <<<>>>Single +4.5V to +15V Supply Voltage Range <<<>>>±3A Peak Gate-Drive Current <<<>>>1mA Operating Current at 250kHz with No Capacitive Load <<<>>>Selectable Synchronizing Clock Frequency for a Preceding PWM Stage <<<>>>Thermally Enhanced 14-Pin TSSOP <<<>>>-40°C to +125°C Operating Temperature Range
Company: Maxim Integrated Products
Datasheet: Download MAX5077 datasheet File size : 241 kB
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