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ACT2861QI 데이터시트(PDF) 1 Page - Active-Semi, Inc

부품명 ACT2861QI
상세설명  30V Buck-Boost Charger with Integrated MOSFETs and OTG
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제조업체  ACTIVE-SEMI [Active-Semi, Inc]
홈페이지  http://www.active-semi.com
Logo ACTIVE-SEMI - Active-Semi, Inc

ACT2861QI 데이터시트(HTML) 1 Page - Active-Semi, Inc

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ACT2861QI
Rev 2.0, 27-Apr-2018
Innovative PowerTM
www.active-semi.com
ActiveSwitcherTM is a trademark of Active-Semi
Copyright © 2017 Active-Semi, Inc.
1
30V Buck-Boost Charger with Integrated MOSFETs and OTG
BENEFITS and 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 out-
put 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
APPLICATIONS
• Multi Cell Battery Charger
• Portable Battery-Powered Devices
• Car Charger
• Power Bank
• 24V Industrial Applications
• Automotive Power Systems
• Multiple Power Source Supplies
• DC UPS
• Solar Powered Devices
• Solid-State Lighting
GENERAL DESCRIPTION
The ACT286x is a buck-boost charger with 4 integrated
MOSFETs. It offers a high efficiency, low component
counts, compact solution for 2 to 5 cell battery charging
application. It can operate from an input voltage range
from 3.9V to 29V.
The 4 internal low resistance NMOS switches minimize
the size of the application circuit and reduce power
losses to maximize efficiency. Internal high side gate
drivers, which require only the addition of two small
external capacitors, further simplify the design process.
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. Transitions between these operating
modes are seamless and free of transients and
subharmonic switching.
The ACT286x has been optimized to reduce input
current in shipping, shutdown, and standby for
applications which are sensitive to quiescent current
draw, such as battery-powered devices.
Both the input side and output side voltages and
currents can be configured by resistors or the I2C serial
interface. The system can be monitored and configured
by I2C as well. The build-in ADC can be read for the
information of input/output voltages and currents, and
the die temperature. With a MCU, it can easy to charge
a multi cell battery pack from a variety of input power
sources.
The IC provides various safety features for system
operation. The thermal regulation reduces output
current when the junction temperature exceeds 120°C
(programmable).
The ACT286x is available in 32-pin, 4x4 mm QFN
package.


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