Datasheet > ACT2861QI401-T

ACT2861QI401-T

更新时间： 2024-10-27 01:08:51

品牌	Logo	应用领域
技领 - ACTIVE-SEMI		/
页数	文件大小	规格书
91页	4824K
描述
30V Buck-Boost Charger with Integrated MOSFETs and OTG

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ACT2861QI401-T 数据手册

ACT2861QI

Rev 2.0, 27-Apr-2018

30V Buck-Boost Charger with Integrated MOSFETs and OTG

GENERAL DESCRIPTION

BENEFITS and FEATURES

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.

• 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

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.

• 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

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.

• 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

The IC provides various safety features for system

operation. The thermal regulation reduces output

current when the junction temperature exceeds 120°C

(programmable).

• Low Output Ripple

• Thermally Enhanced 32-Lead 4mx4mm QFN

The ACT286x is available in 32-pin, 4x4 mm QFN

package.

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

Innovative Power^TM

ActiveSwitcher^TMis a trademark of Active-Semi

www.active-semi.com

12 3 4 5 6 7...91

中文翻译

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ACT-29.30868MHZ-A-G-T	ABRACON	获取价格	TTL Output Clock Oscillator, 29.30868MHz Nom, ROHS COMPLIANT, HERMETICALLY SEALED, METAL,
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ACT-3.68640MHZ-G-T	ABRACON	获取价格	TTL Output Clock Oscillator, 3.6864MHz Nom, ROHS COMPLIANT, HERMETICALLY SEALED, METAL, DI
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