Datasheet > MAX77757HEFG430+

MAX77757HEFG430+

更新时间： 2024-11-05 02:48:03

品牌	Logo	应用领域
美信 - MAXIM		/
页数	文件大小	规格书
35页	715K
描述
3.15A USB Type-C Autonomous Charger with JEITA for 1-Cell Li-ion/LiFePO4 Batteries

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MAX77757HEFG430+ 数据手册

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MAX77757

3.15A USB Type-C Autonomous Charger with

JEITA for 1-Cell Li-ion/LiFePO4 Batteries

Benefits and Features

General Description

•

Up to 16V Protection

The MAX77757 is a standalone 3.15A charger with

13.7V Maximum Input Operating Voltage

3.15A Maximum Charging Current

6A Discharge Current Protection

• No Firmware or Communication Required

• Integrated CC Detection for USB Type-C

• Integrated BC1.2 Detection for Legacy SDP,

DCP, CDP, and DCD Timeout

integrated USB Type-C CC detection with JEITA

compliance that supports reverse boost capability. The

fast-charge current is easily configured with resistors.

The MAX77757 operates with an input voltage of 4.5V

to 13.7V and has a maximum input current limit of 3A.

The IC also implements the adaptive input current limit

(AICL) function that regulates the input voltage by

reducing input current to prevent the voltage of a weak

adapter from collapsing or folding back.

• Integrated USB Detection for Common

Proprietary Charger Types

• Automatic Input Current Limit Configuration

• Input Voltage Regulation with Adaptive Input

Current Limit (AICL)

The USB Type-C Configuration Channel (CC) detection

pins on the MAX77757 enable automatic USB Type-C

power source detection and input current limit

configuration. To support a variety of legacy USB types

as well as proprietary adapters, the IC also integrates

BC1.2 detection using the D+ and D- pins. The IC runs

the CC pin and BC1.2 detection automatically as soon

as a USB plug is inserted without any software control.

•

Reverse Boost Capability up to 5.1V, 1.5A

Termination Voltage

• 4.1V to 4.5V for Li-ion and Li-poly Batteries

• 3.6V/3.7V for LiFePO₄Battery

•

Safety

• Charge Safety Timer

• JEITA Compliance with NTC Thermistor

(MAX77757J)

• HOT/COLD Stop Charging with NTC Thermistor

(MAX77757H)

The IC also offers reverse-boost capability up to 5.1V

and 1.5A, which can be enabled with the ENBST pin.

The STAT pin indicates charging status while the INOKB

pin indicates valid input voltage. Charging can be

stopped by pulling the THM pin low.

• Thermal Shutdown

The MAX77757 is equipped with a Smart Power

Selector™ and a battery true-disconnect FET to control

the charging and discharging of the battery or to isolate

the battery in case of a fault. The MAX77757 is offered

in several variants to support Li-ion batteries with various

termination voltages from 4.1V to 4.5V. It also has a 3.6V

termination voltage option for LiFePO₄batteries. The IC

comes in a 3mm x 3mm, 0.4mm pitch, 24-lead FC2QFN

package making it suitable for low-cost PCB assembly.

•

Pin Control of All Functions

• Resistor Configurable Fast-Charge Current

• ENBST Pin to Enable and Disable Reverse Boost

• STAT Pin to Indicate Charging Status

• INOKB Pin to Indicate Input Power-OK

• THM Pin to Disable Charge

•

Integrated Power Path

Integrated Battery True-Disconnect FET

3mm x 3mm, 24-Lead FC2QFN Package

Applications

Ordering Information appears at end of data sheet.

•

Mobile Point-of-Sale (mPOS) Terminals

Portable Medical Devices

Wireless Headphones

GPS Trackers

Charging Cradles for Wearable Devices

Power Banks

Mobile Routers

19-100986; Rev 1; 3/21

12 3 4 5 6 7...35

中文翻译

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与MAX77757HEFG430+相关器件

型号	品牌	获取价格	描述	数据表
MAX77757HEFG435+	MAXIM	获取价格	3.15A USB Type-C Autonomous Charger with JEITA for 1-Cell Li-ion/LiFePO4 Batteries
MAX77757HEFG440+	MAXIM	获取价格	3.15A USB Type-C Autonomous Charger with JEITA for 1-Cell Li-ion/LiFePO4 Batteries
MAX77757HEFG450+	MAXIM	获取价格	3.15A USB Type-C Autonomous Charger with JEITA for 1-Cell Li-ion/LiFePO4 Batteries
MAX77757HEVKIT360	MAXIM	获取价格	13.7V Maximum Input Operating Voltage
MAX77757JEFG420+	MAXIM	获取价格	3.15A USB Type-C Autonomous Charger with JEITA for 1-Cell Li-ion/LiFePO4 Batteries
MAX77757JEFG430+	MAXIM	获取价格	3.15A USB Type-C Autonomous Charger with JEITA for 1-Cell Li-ion/LiFePO4 Batteries
MAX77757JEFG435+	MAXIM	获取价格	3.15A USB Type-C Autonomous Charger with JEITA for 1-Cell Li-ion/LiFePO4 Batteries
MAX77757JEFG440+	MAXIM	获取价格	3.15A USB Type-C Autonomous Charger with JEITA for 1-Cell Li-ion/LiFePO4 Batteries
MAX77757JEFG450+	MAXIM	获取价格	3.15A USB Type-C Autonomous Charger with JEITA for 1-Cell Li-ion/LiFePO4 Batteries
MAX77785	ADI	获取价格	18.2VIN, 3.5A 1-Cell Li+ Battery Charger for USB Type-C Power Delivery

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