ETA2831 [ETA]
36V Input, 3.5A output USB Charging Total Solution IC in QFN3x3-16;型号: | ETA2831 |
厂家: | ETA Semiconductor |
描述: | 36V Input, 3.5A output USB Charging Total Solution IC in QFN3x3-16 |
文件: | 总1页 (文件大小:152K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
ETA2831
36V Input, 3.5A output USB Charging Total Solution IC in QFN3x3-16
DESCRIPTION
FEATURES
The ETA2831 is a total solution IC specifically for high voltage USB
charging applications. It includes a wide input range, high-efficiency, and
high frequency DC-to-DC step-down switching regulator that is capable
of delivering up to 4A of output current and a low side USB current limiting
switch. The DC-DC in ETA2831 is a current mode converter with a fixed-
frequency that is externally adjustable. There is also a cable resistance
compensation feature that allows users to adjust the output voltage to
compensate for the voltage drop due to cable resistance.
Wide Input Operating Range from 4V to 36V
Standoff Input Voltage: 42V
High Efficiency at 12V In 5V Out: Up to 91%:
High Efficiency PFM mode at light load
Capable of Delivering 3.5A output current
Peak Output Current up to 4A
Cable resistance compensation
Adjustable Switching frequency
Adjustable Output current limit
Frequency dithering Option for low EMI available
Current Mode control
An OVP function protects the IC itself and its downstream system against
input voltage surges. With this OVP function, the IC can stand off input
voltage as high as 42V, making it an ideal solution for industrial
applications such as smart meters as well as automotive applications. In
automotive systems, power comes from the battery, with its voltage
typically ranges between 9V and 24V. Including cold crank and double
battery jump-starts, the minimum input voltage may be as low as 4V and
the maximum up to 36V, This makes ETA2831 ideal for the automotive
application.
Logic Control Shutdown
Thermal shutdown and UVLO
APPLICATIONS
Car Charge ports
There is also a low side current limiting USB switch in ETA2831. The
current limit is internally set at 1A. Since the total output current limit of
the DCDC can be externally adjusted with a resistor, this 1A USB switch
provides flexible configurations for two-port USB charging system.
Multi-cell Li-ion Battery Charger
ORDERING INFORMATION
PART
PACKAGE
TOP MARK
ETA2831Q3Q
QFN3X3-16
ETA2831
TYPICAL APPLICATION
For Car Charger
For General Purpose
www.etasolution.com
1
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