MP5021B 16V, 7m R Hot-Swap Protection DS ON Device with Current Monitoring The Future of Analog IC Technology FEATURES DESCRIPTION 4.8V to 16V Operating Input Range The MP5021B is a hot-swap protection device Integrated 7m Power FET designed to protect circuitry on its output from transients on its input. Also, it protects its input Adjustable Current Limit from undesired shorts and transients coming Output Current Measurement from its output. 5% Current Monitor Accuracy Fast Response (<200ns) for Short Protection At start-up, the slew rate at the output limits the PG Detector and FLTB Indication inrush current. An external capacitor at SS PG Assert Low at VIN = 0 controls the slew rate. Damaged MOSFET Detection The maximum output load is current limited using External Soft-Start a sense FET topology where a low-power Programmable EN Blanking Time resistor from ISET to ground controls the Under/Over-Voltage Lockout magnitude of the current limit. Thermal Protection An internal charge pump drives the gate of the Small QFN-22 (3mmx5mm) Package power device, allowing a power FET with a very APPLICATIONS low on resistance of 7m . Hot Swappable The MP5021B includes an IMON option to PC Cards produce a voltage proportional to the current Disk Drives through the power device, as set by a resistor Laptops from IMON to ground. All MPS parts are lead-free, halogen-free, and adhere to the RoHS The MP5021B includes an optional discharge directive. For MPS green status, please visit the MPS website under function that provides a discharge path for the Quality Assurance. MPS, the MPS logo, and Simple, Easy Solutions are trademarks of Monolithic Power Systems, Inc. or its subsidiaries. external output capacitor when the part is disabled. Fault protections include current-limit protection, thermal shutdown, and damaged MOSFET detection. Both the current limit and thermal shutdown have user-settable auto-retry and latch-off mode. Also, the device features over-voltage protection (OVP) and under-voltage protection (UVP). The MP5021B is available in a 3mm x 5mm QFN package. MP5021B Rev. 1.02 www.MonolithicPower.com 1 11/5/2019 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2019 MPS. All Rights Reserved. MP5021B 16V, 7m R HOT-SWAP PROTECTION DEVICE DS ON TYPICAL APPLICATION MP5021B Rev. 1.02 www.MonolithicPower.com 2 11/5/2019 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2019 MPS. All Rights Reserved.