Datasheet > LP7810A

LP7810A

更新时间： 2024-09-30 17:02:03

品牌	Logo	应用领域
微源半导体 - LOWPOWER		/
页数	文件大小	规格书
26页	1334K
描述
HERO Charge,I2C控制,支持MCU双向通讯,耳机电压跟随充电提升耳机仓续航时间

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中文翻译

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LP7810A 数据手册

LP7810A

Ultra-high Efficiency TWS Charging Case Manager

Features

General Description

⚫ Case Charging Management

The LP7810A is an advanced TWS charging case

- Support 4.1V to 6.2V input voltage with 30V absolute

maximum input voltage rating

management IC targeting to improve the total battery run

time of the TWS earphones. The IC features a linear

charger protects up to 30V input voltage and digitally

programmable up to 930mA charge current via an I2C bus.

The smart discharge voltage management feature tries to

maximize the battery run time. The VOL and the VOR

outputs track the battery voltages of the earphones when

operating together with the companion linear charger

(LP4080) in the earphone, minimizing the power loss. An

NTC interface is offered to manage the charge and

discharge operation based on the battery temperature

sensed by the NTC resistor. Additional silicon temperature

management ensure the safe operation. Earphone

insertion and removal detections simplify the design of the

earphone detection. The LP7810A supports an

independent bidirectional communication bus to the

earphones. An I2C bus is offered for programmability and

flexibility of the device. The typical quiescent current is 4-

uA.

- Programmable fast charge current up to 930mA

- Programmable floating voltage with 0.5% accuracy

- Automatic recharge function

- 7.5% trickle charge current

- 7.5% termination current

⚫ Smart Earphone Charging Management

- Independent earphone insert detection and charging

path

- Smart earphone ultra-low dropout charging to

maximize battery run time

- Programmable earphone fast charge current up to

250mA each channel

- Programmable End of Charge (EEOC) current

- Bi-directional communication to earphones

⚫ 1-channel always-on Linear Regulator

⚫ Temperature Management

The whole system is in a small 16-pin 3x3 QFN package.

Order Information

- JIETA standard NTC management during charging

and discharging

LP7810A

- Charging current thermal foldback

- Thermal shutdown protection

F: Green/Pb-Free

Package Type

QV : QFN

⚫ I2C interface with interrupt indication

⚫ 4-uA ultra-low quiescent current

⚫ 3mm X 3mm QFN-16 package

Typical Application Circuit

⚫ RoHS Compliant and 100% Lead (Pb) free

Applications

2.2uH

L₁

10uF

C₅

1uF

C₃

Battery

⚫ TWS charging case

⚫ Wireless microphone

⚫ Smart Glasses

PMID

Earphone

Pogo Pin

BAT

Input

VIN

2P7

VOL

VOR

1Ω

R₁

1uF

C₂

1uF

C₁

0.1uF

C₄

SDA

LP7810A

VCC

I/O0

I/O1

I/O2

NTCS

10kΩ

R₁

IRQb

SCL

MCU

NTC

GND

R_NTC

I/O3

COMM

LED1

LED2

Version: 10/5/2022

www.lowpowersemi.com

email: marketing@lowpowersemi.com

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与LP7810A相关器件

型号	品牌	获取价格	描述	数据表
LP7811	LOWPOWER	获取价格	HERO Charge,路径管理,I2C控制；支持MCU双向通讯，耳机电压跟随充电提升耳机
LP7812	LOWPOWER	获取价格	HERO Charge，内置通讯功能、霍尔与按键控制,耳机电压跟随充电快充不发热
LP7812A	LOWPOWER	获取价格	HERO Charge，关断型、霍尔与按键控制,耳机电压跟随充电提升耳机仓续航时间
LP7812B	LOWPOWER	获取价格	HERO Charge，常开型、霍尔与按键控制,耳机电压跟随充电提升耳机仓续航时间
LP7812C	LOWPOWER	获取价格	HERO Charge，支持MCU双向通讯,耳机电压跟随充电提升耳机仓续航时间
LP7815	LOWPOWER	获取价格	HERO Charge，支持MCU单向通讯,耳机电压跟随充电功提升耳机仓续航时间
LP7852	LOWPOWER	获取价格	路径管理充放电,按键控制放电输出，锂电保护
LP7C31BH	INTEL	获取价格	CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER
LP7C51BH	INTEL	获取价格	CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER
LP8	YUXIANG	获取价格	LP CORES

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