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reference designACT4921QW301 | Demoboard ACT4921EVK1-301

Qorvo ACT4921QW301 | Demoboard ACT4921EVK1-301

7 V Power Loss Protection Device with 6 A eFuse and Blocking FET

Overview

TopologyBuck Converter
Input voltage2.9-3.7 V
Switching frequency562-2250 kHz
Output 13.3 V / 3 A
IC revision1.0

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

Parts approved by Qorvo

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
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
Pins
Type
H(mm)
IR(A)
Working Voltage(V (AC))
Operating Temperature
Color
Gender
SamplesAvailability & Sample
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74438357022
SPECWE-MAPI SMT Power Inductor, 2.2 µH, 7.1 A
Simu­lation
Availability
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Downloads10 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-MAPI SMT Power Inductor
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 
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Length4.3 mm
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Pins2 
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Height3.1 mm
Rated Current5.2 A
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Operating Temperature -40 °C up to +125 °C
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–Check availability
865080553014
SPECWCAP-ASLI Aluminum Electrolytic Capacitors, –, –
Simu­lation
Availability
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Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWCAP-ASLI Aluminum Electrolytic Capacitors
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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 
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Operating Temperature -55 °C up to +105 °C
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–Check availability
60900213421
SPECWR-PHD Jumper, –, –
Simu­lation–
Availability
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Downloads3 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWR-PHD Jumper
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Length2.44 mm
PackagingBag 
Pins1 
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Rated Current3 A
Working Voltage250 V (AC)
Operating Temperature -40 °C up to +125 °C
ColorBlack 
GenderJumper 
–Check availability
61300211121
SPECWR-PHD Pin Header - Single, –, –
Simu­lation–
Availability
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Downloads7 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWR-PHD Pin Header - Single
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MountTHT 
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Length5.08 mm
PackagingBag 
Pins2 
TypeStraight 
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Rated Current3 A
Working Voltage250 V (AC)
Operating Temperature -40 °C up to +105 °C
–
GenderPin Header 
–Check availability
61300311121
SPECWR-PHD Pin Header - Single, –, –
Simu­lation–
Availability
–
Downloads7 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWR-PHD Pin Header - Single
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MountTHT 
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Length7.62 mm
PackagingBag 
Pins3 
TypeStraight 
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Rated Current3 A
Working Voltage250 V (AC)
Operating Temperature -40 °C up to +105 °C
–
GenderPin Header 
–Check availability
61300411121
SPECWR-PHD Pin Header - Single, –, –
Simu­lation–
Availability
–
Downloads7 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWR-PHD Pin Header - Single
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MountTHT 
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Length10.16 mm
PackagingBag 
Pins4 
TypeStraight 
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Rated Current3 A
Working Voltage250 V (AC)
Operating Temperature -40 °C up to +105 °C
–
GenderPin Header 
–Check availability