Datasheet > MAX77785

MAX77785

更新时间： 2024-09-16 17:00:43

品牌	Logo	应用领域
亚德诺 - ADI		电池
页数	文件大小	规格书
90页	3141K
描述
18.2VIN, 3.5A 1-Cell Li+ Battery Charger for USB Type-C Power Delivery

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MAX77785 数据手册

MAX77785/MAX77786

18.2VIN, 3.5A/5.5A 1-Cell Li+

Battery Charger for USB Type-C

Power Delivery

Benefits and Features

General Description

The MAX77785/MAX77786 is a high-performance high-

•

High-Efficiency Single-Cell Switching Charger

• Up to 5.5A Charging with MAX77786

input 3.5/5.5A fast charger with Smart Power Selector^TM

The ICs can operate as a reverse boost converter

without an additional inductor, allowing the battery to

share its power through the charging port, and offer

programmable output voltage from 4.505V to 10.805V.

The devices feature fully integrated low-loss power

switches to provide a small solution size and high

efficiency, even at high input voltage and high charging

current. Its high switching frequency allows the use of a

smaller-sized inductor. The ICs feature true load

disconnection in reverse boost mode and have an

adjustable output current protection limit. The device is

• Up to 3.5A Charging with MAX77785

• 90% Buck Efficiency at 4A, 15V Input

• Up to 5.5A Input Current Limit with AICL

(MAX77786)

• Up to 3.5A Input Current Limit with AICL

(MAX77785)

•

+26V Absolute Maximum Input Voltage Rating

4.7V to 18.2V Input Operating Voltage Range

Reverse Boost with Programmable Output Voltage

Options up to 10.805V

highly flexible and programmable through I C

configuration. Li-ion, Li-polymer, and LiFePO battery

• Up to 16.2W for MAX77786

chemistries are supported. It can also provide fast

programmable unplug detection of sources for dynamic

system load management. To support a variety of legacy

USBs as well as proprietary adapters, the device also

integrates BC1.2 detection using the D+ and D- pins.

• Up to 10.8W for MAX77785

• Dedicated Boost enable input

•

Integrated Battery True-Disconnect FET

• R

= 7.7mΩ

DSON

• Programmable Discharge Current Limit up to 10A

• Shipping Mode and Low Battery Leakage Current

• 1.3MHz Switching Frequency with 1μH Inductor

• Disconnect Input (DISQBAT)

The battery charger includes a Smart Power Selector to

accommodate a wide range of battery sizes and system

loads. The Smart Power Selector allows the system to

start up gracefully when an input source is available,

even when the battery is deeply discharged (dead

battery) or missing. It can be configured so that when

power is applied to the charger input, the battery

charging can automatically start.

Safety

• Battery Temperature Sensing and Charge Safety

Timer

• JEITA Guideline Compliant

• Thermal Regulation and Thermal Shutdown

• System Voltage OVLO/UVLO

Applications

•

USB Switch with BC1.2 Detection

Spread Spectrum for Noise-Sensitive Applications

Charge Status Output for LED

•

Gaming Devices

VR Applications

mPOS

Push-Button Input for Exiting from Ship Mode

Programmable Unplug Detection Output

Dedicated Input for Suspend Mode (SUSPND)

Tablet PCs

Smart Power Selector is a trademark of Maxim Integrated

Products, Inc

I C Interface

2.96 mm x 2.96 mm WLP

USB Type-C is a registered trademark of USB Implementers

Forum, Inc.

Ordering Information appears at end of data sheet.

Power Path is a trademark of Linear Technology Corporation.

19-101772; Rev 0; 2/24

12 3 4 5 6 7...90

中文翻译

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与MAX77785相关器件

型号	品牌	获取价格	描述	数据表
MAX77786	ADI	获取价格	18.2VIN, 5.5A 1-Cell Li+ Battery Charger for USB Type-C Power Delivery
MAX77787	ADI	获取价格	支持JEITA的3.15A USB Type-C自动充电器，适用于1节锂离子/LiFePO
MAX77789	ADI	获取价格	集成USB Type-C检测、DRP和OTG功能的14VIN、3AOUT 1节电池充电器
MAX777C	MAXIM	获取价格	Low-Voltage-Input, 3V/3.3V/5V/Adjustable-Output, Step-Up DC-DC Converters
MAX777C/D	MAXIM	获取价格	Switching Regulator, Current-mode, 1A, 150kHz Switching Freq-Max, BIPolar, DIE-15
MAX777CPA	MAXIM	获取价格	Voltage-Mode SMPS Controller
MAX777CSA	MAXIM	获取价格	Voltage-Mode SMPS Controller
MAX777D	MAXIM	获取价格	Low-Voltage-Input, 3V/3.3V/5V/Adjustable-Output, Step-Up DC-DC Converters
MAX777EPA	MAXIM	获取价格	Voltage-Mode SMPS Controller
MAX777ESA	MAXIM	获取价格	Voltage-Mode SMPS Controller

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