FDMF5821

FDMF5821: 带集成温度监控器的智能功率级 SPS 模块

The SPS family is ON’s next-generation, fully optimized, ultra-compact, integrated MOSFET plus driver power stage solution for high-current, high-frequency, synchronous buck, DC-DC applications. The integrates a driver IC with a bootstrap Schottky diode, two power MOSFETs, and a thermal monitor into a thermally enhanced, ultra-compact, 5 mm x 5 mm package.With an integrated approach, the SPS switching power stage is optimized for driver and MOSFET dynamic performance, minimized system inductance, and power MOSFET RDSON. The SPS family uses Fairchild"s high-performance PowerTrench® MOSFET technology, which reduces switch ringing, eliminating the need for a snubber circuit in most buck converter applications.A driver IC with reduced dead times and propagation delays further enhances the performance. A thermal monitor function warns of a potential over-temperature situation. A programmable thermal shutdown function turns off the driver if an over-temperature condition occurs. The FDMF5821 incorporates an Auto-DCM Mode ZCD# for improved light-load efficiency. The FDMF5821 also provides a 3-state 5 V PWM input for compatibility with a wide range of PWM controllers.

Features

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Ultra-Compact 5 mm x 5 mm PQFN Copper-Clip Package with Flip Chip Low-Side MOSFET

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High Current Handling: 60 A

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3-State 5 V PWM Input Gate Driver

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Dynamic Resistance Mode for Low-Side Drive LDRV Slows Low-Side MOSFET during Negative Inductor Current Switching

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Auto DCM Low-Side Gate Turn Off Using ZCD# Input

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Thermal Monitor for Module Temperature Reporting

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Programmable Thermal Shutdown P_THDN

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HS-Short Detect Fault# / Shutdown

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Dual Mode Enable / Fault# Pin

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Internal Pull-Up and Pull-Down for ZCD# and EN Inputs, respectively

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ON’s PowerTrench® MOSFETs for Clean Voltage Waveforms and Reduced Ringing

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ON’s SyncFET™ Technology Integrated Schottky Diode in Low-Side MOSFET

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Integrated Bootstrap Schottky Diode

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Optimized / Extremely Short Dead-Times

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Optimized for Switching Frequencies up to 1.5 MHz

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Under-Voltage Lockout UVLO on VCC

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Low Shutdown Current: < 3 μA

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PWM Minimum Controllable On-Time: 30 ns

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Operating Junction Temperature Range: -40°C to +125°C

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Optimized FET Pair for Highest Efficiency: 10 ~ 15% Duty Cycle

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ON Green Packaging and RoHS Compliance