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  • SC89620QFAR

  • SC89620QFAR

    Descriptions
    The SC89620(2) is a 1.5MHz highly integrated switch-mode
    buck charger for 1 cell Li-ion battery applications and NVDC
    system power path management, which separate the
    system load and charge current, also the system can power
    up with deep depletion battery. System can get the power
    from VBUS, VBAT or both. It supports 3.9-13.5V input
    voltage, up to 3.5A charging current and provide battery
    charge management functions including trickle charge,
    constant current charge, constant voltage charge, charge
    termination, auto recharge and charging status indication.
    The SC89620(2) supports flexible charge current option, the
    user can program the current and all others charger spec by
    I2C. With the charger management function, the IC can be
    used to charge 1 cell Li-ion battery.
    The SC89620(2) supports USB OTG with up to 2A output
    with PFM/PWM mode. Meanwhile, the SC89620(2)
    supports USB BC1.2 and non-standard adapters.
    The SC89620(2) supports input current and voltage limit,
    input under voltage and over voltage protections, internal
    cycle by cycle current limit, battery short circuit protection,
    and output over voltage protection. It also offers charging
    safety timer and over temperature protection to ensure
    safety under different abnormal conditions.
    The SC89620(2) integrated all MOSFETs, current sensing,
    loop compensation and I2C interface. The SC89620(2) is
    available in QFN(18)-3*2.5 package

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商品描述

Descriptions
The SC89620(2) is a 1.5MHz highly integrated switch-mode
buck charger for 1 cell Li-ion battery applications and NVDC
system power path management, which separate the
system load and charge current, also the system can power
up with deep depletion battery. System can get the power
from VBUS, VBAT or both. It supports 3.9-13.5V input
voltage, up to 3.5A charging current and provide battery
charge management functions including trickle charge,
constant current charge, constant voltage charge, charge
termination, auto recharge and charging status indication.
The SC89620(2) supports flexible charge current option, the
user can program the current and all others charger spec by
I2C. With the charger management function, the IC can be
used to charge 1 cell Li-ion battery.
The SC89620(2) supports USB OTG with up to 2A output
with PFM/PWM mode. Meanwhile, the SC89620(2)
supports USB BC1.2 and non-standard adapters.
The SC89620(2) supports input current and voltage limit,
input under voltage and over voltage protections, internal
cycle by cycle current limit, battery short circuit protection,
and output over voltage protection. It also offers charging
safety timer and over temperature protection to ensure
safety under different abnormal conditions.
The SC89620(2) integrated all MOSFETs, current sensing,
loop compensation and I2C interface. The SC89620(2) is
available in QFN(18)-3*2.5 package

Features 

• High Efficiency, 1.5MHz, Synchronous Buck Charger ➢ 91.4% Charge Efficiency at 2A from 5V Input ➢ 89.5% Charge Efficiency at 2A from 9V Input 

• BATFET control to support shutdown, ship mode and full system reset ➢ 5μA quiescent current in battery only mode ➢ 1μA battery leakage current in ship mode 

• Supports USB On-The-Go (OTG) 

• Supports a wide range of input sources ➢ 3.9V to 13.5V wide input operating voltage range with 25V absolute maximum input voltage ➢ Maximizes source power with input voltage and current regulation 

• Integrated NVDC Power Path Management 

• Flexible autonomous or I2C-controlled modes 

• Safety ➢ Thermal regulation and thermal shutdown ➢ Input, system, battery overvoltage protection ➢ Battery, converter overcurrent protection ➢ Charging safety timer 

• High accuracy charger voltage and current regulation 

Applications 

• Smart Phones 

• Portable Internet Devices and Accessory