Active Semi

ACT2861
Demoboard EVK402

30V Buck-Boost Charger with Integrated MOSFETs and OTG

Topologie: Buck-Boost
Eingangsspannung (min.): 4.00 V
Eingangsspannung (max.): 29.00 V
Schaltfrequenz (min.): 125.00 kHz
Schaltfrequenz (max.): 1000.00 kHz

Beschreibung

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.

Merkmale

  • 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

Artikel

  Artikel Nr. SPEC Produktserie Pins Reihen Gender Typ IR 1
(A)
Verpackung λDom typ.
(nm)
Farbe λPeak typ.
(nm)
IV typ.
(mcd)
VF typ.
(V)
Chiptechnologie 50% typ.
(°)
H
(mm)
Betätigungskraft
(g)
Actuator-Farbe VPE Anwendung PCB/Kabel/Panel Modularity Wire Section L
(µH)
IR
(A)
ISAT
(A)
RDC typ.
(mΩ)
RDC max.
(mΩ)
fres
(MHz)
Montageart C
(nF)
Tol. C VR
(V (DC))
DF
(%)
Keramiktyp Technische Artikelnummer Endurance
(h)
Betriebstemperatur IRIPPLE
(mA)
ILeak
(µA)
P
(mm)
Ø D
(mm)
L
(mm)
Muster
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