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Overview
| Topology | Buck-Boost Converter |
| Input voltage | 4-29 V |
| Switching frequency | 125-1000 kHz |
| Output 1 | 8.4 V / 3 A |
| IC revision | 0.0 |
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
- Buck-Boost Charger with Integrated FETs
- Input Voltage Range: 4 to 29V (No Dead Zone)
- Supports 2 to 5 series cell battery packs
- Seamless Transition Between Buck and Boost Mode
- OTG output supports QC3.0 / USB PD + PPS
- 2V ~ 5V/100mA Programmable Output LDO
- <5 μA Battery Leakage Current in Ship Mode
- Voltage and Current monitoring
- Thermal Regulation and Protection
- JEITA Compliant
- Programmable via I²C or Standalone
- Thermally Enhanced 32-Lead 4mx4mm QFN
Typical applications
- Multiple Power Source Supplies / DC UPS
- Solid-State Lighting
- Solar Powered Devices
- Portable Battery-Powered Devices
- Automotive Power Systems
- Multi Cell Battery Charger / Car Charger / Power Bank
- 24V Industrial Applications
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | Pins (pcs) | 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,30% (A) | RDC typ. (mΩ) | RDC max. (mΩ) | fres (MHz) | Mount | Endurance (h) | IRIPPLE (mA) | ILeak (µA) | Pitch (mm) | Ø D (mm) | Rows | Gender | IR (A) | Color | H (mm) | Operation Force (g) | Electrical Life (Cycles) | Actuator Color | Washable | Vaporphase process | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 60900213421 | SPEC | – | 3 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD Jumper | 1 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | -40 °C up to +125 °C | – | 1000 MΩ | – | 2.44 | – | – | Bag | – | – | – | – | – | – | – | – | – | – | 2.54 | – | – | Jumper | 3 | Black | – | – | – | – | – | – | |
 | 61300111121 | SPEC | – | 7 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD Pin Header - Single | 1 | – | – | – | Straight | – | – | – | – | – | – | – | – | – | – | – | – | -40 °C up to +105 °C | – | 1000 MΩ | – | 2.54 | – | – | Bag | – | – | – | – | – | – | THT | – | – | – | 2.54 | – | Single | Pin Header | 3 | – | – | – | – | – | – | – | |
 | 691214110002S | SPEC | – | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WR-TBL Series 2141S - 3.50 mm Horizontal Entry Modular w. Rising Cage Clamp | 2 | Rising Cage Clamp | PCB | Yes | Horizontal | 30 to 16 (AWG) 0.05 to 1.31 (mm²) | – | – | – | – | – | – | – | – | – | – | – | -30 °C up to +120 °C | – | – | – | 7 | – | – | Box | – | – | – | – | – | – | THT | – | – | – | 3.5 | – | – | – | 10 | – | – | – | – | – | – | – | |
 | 61300211121 | SPEC | – | 7 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD Pin Header - Single | 2 | – | – | – | Straight | – | – | – | – | – | – | – | – | – | – | – | – | -40 °C up to +105 °C | – | 1000 MΩ | – | 5.08 | – | – | Bag | – | – | – | – | – | – | THT | – | – | – | 2.54 | – | Single | Pin Header | 3 | – | – | – | – | – | – | – | |
 | 74439346100 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WE-XHMI SMT Power Inductor | 2 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 6060 | -40 °C up to +125 °C | – | – | – | 6.65 | 6.45 | – | – | 10 | 6.4 | 9.7 | 26.5 | 29.15 | 18 | SMT | – | – | – | – | – | – | – | 5 | – | 6.1 | – | – | – | – | – | ||
 | 61300311121 | SPEC | – | 7 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD Pin Header - Single | 3 | – | – | – | Straight | – | – | – | – | – | – | – | – | – | – | – | – | -40 °C up to +105 °C | – | 1000 MΩ | – | 7.62 | – | – | Bag | – | – | – | – | – | – | THT | – | – | – | 2.54 | – | Single | Pin Header | 3 | – | – | – | – | – | – | – | |
 | 150060VS75000 | SPEC | 7 files | Active i| Production is active. Expected lifetime: >10 years. | WL-SMCW SMT Mono-color Chip LED Waterclear | – | – | – | – | – | – | 570 | Bright Green | 572 | 40 | 2 | AlInGaP | 140 | – | – | – | 0603 | -40 °C up to +85 °C | – | – | – | 1.6 | 0.8 | – | Tape and Reel | – | – | – | – | – | – | SMT | – | – | – | – | – | – | – | – | – | 0.7 | – | – | – | – | – | ||
 | 860010675020 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-ATG8 Aluminum Electrolytic Capacitors | – | – | – | – | – | – | – | – | – | – | – | – | – | 470 µF | ±20% | 50 | – | – | 10 | – | – | 20 | – | – | Ammopack | – | – | – | – | – | – | – | 2000 | 828 | 235 | 5 | 10 | – | – | – | – | – | – | – | – | – | – | ||
 | 860020574012 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-ATG5 Aluminum Electrolytic Capacitors | – | – | – | – | – | – | – | – | – | – | – | – | – | 220 µF | ±20% | 35 | – | – | 12 | – | – | 11.5 | – | – | Ammopack | – | – | – | – | – | – | – | 2000 | 255 | 77 | 3.5 | 8 | – | – | – | – | – | – | – | – | – | – | ||
 | 885012206014 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 10 V(DC) | – | – | – | – | – | – | – | – | – | – | – | – | – | 10 nF | ±10% | 10 | 0603 | -55 °C up to +125 °C | 5 | 10 GΩ | X7R Class II | 1.6 | 0.8 | 0.4 | 7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 0.8 | – | – | – | – | – | ||
| 885012206020 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 10 V(DC) | – | – | – | – | – | – | – | – | – | – | – | – | – | 100 nF | ±10% | 10 | 0603 | -55 °C up to +125 °C | 5 | 5 GΩ | X7R Class II | 1.6 | 0.8 | 0.4 | 7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 0.8 | – | – | – | – | – | ||
| 885012206026 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 10 V(DC) | – | – | – | – | – | – | – | – | – | – | – | – | – | 1 µF | ±10% | 10 | 0603 | -55 °C up to +125 °C | 10 | 0.1 GΩ | X7R Class II | 1.6 | 0.8 | 0.4 | 7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 0.8 | – | – | – | – | – | ||
| 885012206093 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | – | – | – | – | – | – | – | – | – | 47 nF | ±10% | 50 | 0603 | -55 °C up to +125 °C | 3 | 10 GΩ | X7R Class II | 1.6 | 0.8 | 0.4 | 7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 0.8 | – | – | – | – | – | ||
 | 430481035816 | SPEC | – | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WS-TASV SMT Washable Tact Switch 6x6 mm | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 12 | – | -40 °C up to +85 °C | – | 100 MΩ | – | – | – | – | Tape and Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 0.05 | – | 3.5 | 160 | 1000000 | Black | Yes | not specified |
| Samples |
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| Order Code | Datasheet | Simulation | Downloads | Status | Product series | Pins (pcs) | 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,30% (A) | RDC typ. (mΩ) | RDC max. (mΩ) | fres (MHz) | Mount | Endurance (h) | IRIPPLE (mA) | ILeak (µA) | Pitch (mm) | Ø D (mm) | Rows | Gender | IR (A) | Color | H (mm) | Operation Force (g) | Electrical Life (Cycles) | Actuator Color | Washable | Vaporphase process | Samples |
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