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Qorvo ACT4921QW301 | Demoboard ACT4921EVK1-301
7 V Power Loss Protection Device with 6 A eFuse and Blocking FET
Overview
| Topology | Buck Converter |
| Input voltage | 2.9-3.7 V |
| Switching frequency | 562-2250 kHz |
| Output 1 | 3.3 V / 3 A |
| IC revision | 1.0 |
Description
This document describes the characteristic and operation of the Active Semi ACT4921EVK1-301 evaluation kit (EVK). It provides setup and operation instructions, schematic, layout, BOM, and test data. This EVK demonstrates the ACT4921QI301 eFuse power management IC. Other ACT4921QIxxx options can be evaluated on this EVK by replacing the IC and any other necessary components.
Features
- Optimized for Low Voltage Applications
- 2.6-to-7V Operating Input Range
- 8V Max Input Blocking Voltage
- Adjustable In-rush Current Control
- Configurable Input Power Failure Level
- 28V@4A Synchronous Buck Supports 100% Duty Cycle
- Programmable up to 2.25MHz Buck Operating Frequency for Small Inductor Size
- Power Loss, Vout Power Good, and Storage Cap Power Good Indicators
- Compatible with Different Types of Storage Caps
- Super Caps, Electrolytic, Tantalum, POSCAP etc.
- Autonomous Health Monitoring for Detection of Earlier Storage Capacitor Failures
- Configurable Interrupts to Inform Host for any Faults/Status Change
- eFuse, Boost, and Buck UV/OV/OC Protection
- Thermal Enhanced FCQFN 4×4-32 package
Typical applications
- Solid State Drive / eFuse / Hot Plug Devices
- Industrial Applications
- Power Backup Systems
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | Pins | PCB/Cable/Panel | Modularity | Type | Wire Section | L(µH) | IRP,40K(A) | ISAT,30%(A) | RDC typ.(mΩ) | fres(MHz) | VOP(V) | Mount | C | VR(V (DC)) | Endurance(h) | IRIPPLE(mA) | Z(mΩ) | ILeak(µA) | DF(%) | Ø D(mm) | L(mm) | Packaging | H(mm) | IR(A) | Working Voltage(V (AC)) | Operating Temperature | Color | Gender | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WR-PHD Jumper, 1, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Jumper | Pins1 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Length2.44 mm | PackagingBag | – | Rated Current3 A | Working Voltage250 V (AC) | Operating Temperature -40 °C up to +125 °C | ColorBlack | GenderJumper | |||
 | WR-TBL Series 213 - 5.00 mm Horiz.l Entry Modular, 2, Rising Cage Clamp | Simulation– | Downloads6 files | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-TBL Series 213 - 5.00 mm Horiz.l Entry Modular | Pins2 | PCB/Cable/PanelPCB | ModularityYes | TypeHorizontal | Wire Section 26 to 16 (AWG) 0.5 to 1.5 (mm²) | – | – | – | – | – | – | MountTHT | – | – | – | – | – | – | – | – | Length10 mm | PackagingBox | – | Rated Current10 A | Working Voltage250 V (AC) | Operating Temperature -40 °C up to +105 °C | – | – | ||
 | WR-PHD Pin Header - Single, 2, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Single | Pins2 | – | – | TypeStraight | – | – | – | – | – | – | – | MountTHT | – | – | – | – | – | – | – | – | Length5.08 mm | PackagingBag | – | Rated Current3 A | Working Voltage250 V (AC) | Operating Temperature -40 °C up to +105 °C | – | GenderPin Header | |||
 | WE-MAPI SMT Power Inductor, 2, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-MAPI SMT Power Inductor | Pins2 | – | – | – | – | Inductance2.2 µH | Performance Rated Current7.1 A | Saturation Current @ 30%9.2 A | DC Resistance22 mΩ | Self Resonant Frequency35 MHz | Operating Voltage80 V | MountSMT | – | – | – | – | – | – | – | – | Length4.3 mm | – | Height3.1 mm | Rated Current5.2 A | – | Operating Temperature -40 °C up to +125 °C | – | – | ||||
 | WR-PHD Pin Header - Single, 3, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Single | Pins3 | – | – | TypeStraight | – | – | – | – | – | – | – | MountTHT | – | – | – | – | – | – | – | – | Length7.62 mm | PackagingBag | – | Rated Current3 A | Working Voltage250 V (AC) | Operating Temperature -40 °C up to +105 °C | – | GenderPin Header | |||
 | WR-PHD Pin Header - Single, 4, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Single | Pins4 | – | – | TypeStraight | – | – | – | – | – | – | – | MountTHT | – | – | – | – | – | – | – | – | Length10.16 mm | PackagingBag | – | Rated Current3 A | Working Voltage250 V (AC) | Operating Temperature -40 °C up to +105 °C | – | GenderPin Header | |||
 | WCAP-ASLI Aluminum Electrolytic Capacitors, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-ASLI Aluminum Electrolytic Capacitors | – | – | – | – | – | – | – | – | – | – | – | MountV-Chip SMT | Capacitance220 µF | Rated Voltage35 V (DC) | Endurance 2000 | Ripple Current570 mA | Impedance210 mΩ | Leakage Current77 µA | Dissipation Factor14 % | Diameter8 mm | Length10.5 mm | Packaging15" Tape & Reel | – | – | – | Operating Temperature -55 °C up to +105 °C | – | – |