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reference designACT2861 | Demoboard EVK402

Qorvo ACT2861 | Demoboard EVK402

30V Buck-Boost Charger with Integrated MOSFETs and OTG

Overview

TopologyBuck-Boost Converter
Input voltage4-29 V
Switching frequency125-1000 kHz

Description

The ACT2861 is a buck-boost charger with 4 integrated MOSFETs. It offers a high efficiency, low component count, compact solution for 2 to 5 cell battery charging application. It operates from an input voltage range from 4 to 29V. An advanced switch control algorithm allows the buck-boost converter to maintain output voltage regulation with input voltages that are above, below or equal to the output voltage. The ACT2861 is optimized to reduce input current in shipping, shutdown, and standby for applications which are sensitive to quiescent current draw, such as battery-powered devices. The system can be monitored and configured by I²C. The built-in ADC can be read for the information of input/output voltages and currents, and the die temperature. With an MCU, it can easily be configured to charge a multi cell battery pack from a variety of input power sources.

Features

  • Wide VIN Range: 3.9V to 29V (No Dead Zone)
  • Supports 2 to 5 Cell Lithium-ion Batteries
  • Supports OTG Function (5V ~ 22.5V Input) with wide range of output voltages
  • OTG output supports QC3.0 / USB PD + PPS output levels and transition times
  • Programmable Frequency: 125KHz, 250KHz, 500kHz, and 1MHz
  • 2V ~ 5V/100mA Programmable Output LDO
  • Precision 0.5% Voltage Reference
  • +/-4% Output Constant Current Regulation
  • < 5 μA Leakage Current from Battery in Shipping Mode
  • Programmable Charge Voltage via I2C
  • Programmable Charge Current via Pin and I2C
  • Programmable Soft-Start
  • Programmable Safety Timer
  • Battery Path Impedance Compensation
  • JEITA Compliant
  • Cycle-by-Cycle Current Limit
  • Built in ADC for Temperature, Input and Output Voltage and Current monitoring
  • Thermal Regulation and Protection
  • 25mΩ FET from VIN to SW1
  • 25mΩ FET from SW2 to VOUT
  • 35mΩ FET from SW1 to PGND
  • 35mΩ FET from SW2 to PGND
  • Low Output Ripple
  • Thermally Enhanced 32-Lead 4mx4mm QFN

Typical applications

  • Solar Powered Devices
  • Multi Cell Battery Charger / Power Bank
  • Car Charger / 24V Industrial Applications / Multiple Power Source Supplies /DC UPS
  • Automotive Power Systems
  • Portable Battery-Powered Devices
  • Solid-State Lighting

More information

Parts approved by Qorvo

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
Pins
Application
PCB/Cable/Panel
Modularity
Type
Wire Section
λDom typ.(nm)
Emitting Color
λPeak typ.(nm)
IV typ.(mcd)
VF typ.(V)
Chip Technology
2θ50% typ.(°)
C
Tol. C
VR(V (DC))
Size
Operating Temperature
DF(%)
RISO
Ceramic Type
L(mm)
W(mm)
Fl(mm)
Packaging
L(µH)
IRP,40K(A)
ISAT,10%(A)
ISAT,30%(A)
RDC max.(mΩ)
fres(MHz)
Mount
Endurance(h)
IRIPPLE(mA)
ILeak(µA)
Pitch(mm)
Ø D(mm)
IR(A)
Working Voltage(V (AC))
Color
Gender
H(mm)
Operation Force(g)
Electrical Life(Cycles)
Actuator Color
Washable
Vaporphase process
SamplesAvailability & Sample
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60900213421
SPECWR-PHD Jumper, 1, –
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ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWR-PHD Jumper
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Insulation Resistance1000 MΩ
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Length2.44 mm
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Pitch2.54 mm
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Rated Current3 A
Working Voltage250 V (AC)
ColorBlack 
GenderJumper 
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61300111121
SPECWR-PHD Pin Header - Single, 1, –
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iProduction is active. Expected lifetime: >10 years.
Product seriesWR-PHD Pin Header - Single
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TypeStraight 
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Insulation Resistance1000 MΩ
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Length2.54 mm
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MountTHT 
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Pitch2.54 mm
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Rated Current3 A
Working Voltage250 V (AC)
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691214110002S
SPECWR-TBL Series 2141S - 3.50 mm Horizontal Entry Modular w. Rising Cage Clamp, 2, Rising Cage Clamp
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ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWR-TBL Series 2141S - 3.50 mm Horizontal Entry Modular w. Rising Cage Clamp
Pins2 
ApplicationRising Cage Clamp 
PCB/Cable/PanelPCB 
ModularityYes 
TypeHorizontal 
Wire Section 30 to 16 (AWG) 0.05 to 1.31 (mm²)
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Operating Temperature -30 °C up to +120 °C
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Length7 mm
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Pitch3.5 mm
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Rated Current10 A
Working Voltage130 V (AC)
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61300211121
SPECWR-PHD Pin Header - Single, 2, –
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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
Pins2 
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TypeStraight 
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Operating Temperature -40 °C up to +105 °C
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Insulation Resistance1000 MΩ
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Length5.08 mm
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MountTHT 
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Pitch2.54 mm
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Rated Current3 A
Working Voltage250 V (AC)
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GenderPin Header 
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61300311121
SPECWR-PHD Pin Header - Single, 3, –
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iProduction is active. Expected lifetime: >10 years.
Product seriesWR-PHD Pin Header - Single
Pins3 
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TypeStraight 
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Operating Temperature -40 °C up to +105 °C
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Insulation Resistance1000 MΩ
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Length7.62 mm
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MountTHT 
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Pitch2.54 mm
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Rated Current3 A
Working Voltage250 V (AC)
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150060VS75000
SPECWL-SMCW SMT Mono-color Chip LED Waterclear, –, –
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Product seriesWL-SMCW SMT Mono-color Chip LED Waterclear
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Dominant Wavelength [typ.]570 nm
Emitting ColorBright Green 
Peak Wavelength [typ.]572 nm
Luminous Intensity [typ.]40 mcd
Forward Voltage [typ.]2 V
Chip TechnologyAlInGaP 
Viewing Angle Phi 0° [typ.]140 °
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Size0603 
Operating Temperature -40 °C up to +85 °C
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Length1.6 mm
Width0.8 mm
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860010675020
SPECWCAP-ATG8 Aluminum Electrolytic Capacitors, –, –
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Product seriesWCAP-ATG8 Aluminum Electrolytic Capacitors
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Capacitance470 µF
Capacitance±20% 
Rated Voltage50 V (DC)
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Dissipation Factor10 %
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Length20 mm
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PackagingAmmopack 
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Endurance 2000
Ripple Current828 mA
Leakage Current235 µA
Pitch5 mm
Diameter10 mm
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885012206020
SPECWCAP-CSGP MLCCs 10 V(DC), –, –
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Product seriesWCAP-CSGP MLCCs 10 V(DC)
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Capacitance100 nF
Capacitance±10% 
Rated Voltage10 V (DC)
Size0603 
Operating Temperature -55 °C up to +125 °C
Dissipation Factor5 %
Insulation Resistance5 GΩ
Ceramic TypeX7R Class II 
Length1.6 mm
Width0.8 mm
Pad Dimension0.4 mm
Packaging7" Tape & Reel 
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885012206026
SPECWCAP-CSGP MLCCs 10 V(DC), –, –
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ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 10 V(DC)
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Capacitance1 µF
Capacitance±10% 
Rated Voltage10 V (DC)
Size0603 
Operating Temperature -55 °C up to +125 °C
Dissipation Factor10 %
Insulation Resistance0.1 GΩ
Ceramic TypeX7R Class II 
Length1.6 mm
Width0.8 mm
Pad Dimension0.4 mm
Packaging7" Tape & Reel 
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885012206075
SPECWCAP-CSGP MLCCs 25 V(DC), –, –
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Status
ActiveProduction is active. Expected lifetime: >10 years.
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Product seriesWCAP-CSGP MLCCs 25 V(DC)
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Capacitance470 nF
Capacitance±10% 
Rated Voltage25 V (DC)
Size0603 
Operating Temperature -55 °C up to +125 °C
Dissipation Factor10 %
Insulation Resistance1.1 GΩ
Ceramic TypeX7R Class II 
Length1.6 mm
Width0.8 mm
Pad Dimension0.4 mm
Packaging7" Tape & Reel 
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Height0.8 mm
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885012206093
SPECWCAP-CSGP MLCCs 50 V(DC), –, –
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Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 50 V(DC)
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Capacitance47 nF
Capacitance±10% 
Rated Voltage50 V (DC)
Size0603 
Operating Temperature -55 °C up to +125 °C
Dissipation Factor3 %
Insulation Resistance10 GΩ
Ceramic TypeX7R Class II 
Length1.6 mm
Width0.8 mm
Pad Dimension0.4 mm
Packaging7" Tape & Reel 
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Height0.8 mm
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430481035816
SPECWS-TASV SMT Washable Tact Switch 6x6 mm, –, –
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Product seriesWS-TASV SMT Washable Tact Switch 6x6 mm
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Rated Voltage12 V (DC)
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Operating Temperature -40 °C up to +85 °C
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Insulation Resistance100 MΩ
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PackagingTape and Reel 
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Rated Current0.05 A
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Height3.5 mm
Operation Force160 g
Electrical Life1000000 Cycles
Actuator ColorBlack 
WashableYes 
Vaporphase processnot specified 
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744373965220
SPECWE-LHMI SMT Power Inductor, –, –
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Status
ActiveProduction is active. Expected lifetime: >10 years.
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Product seriesWE-LHMI SMT Power Inductor
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Size1365 
Operating Temperature -40 °C up to +125 °C
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Length13.65 mm
Width12.5 mm
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Inductance22 µH
Performance Rated Current6.5 A
Saturation Current @ 10%6.7 A
Saturation Current @ 30%13.9 A
DC Resistance37 mΩ
Self Resonant Frequency5.4 MHz
MountSMT 
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Height6.2 mm
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