Datasheet > BD71815AGW

BD71815AGW

更新时间： 2024-11-05 11:10:59

品牌	Logo	应用领域
罗姆 - ROHM		电池开关驱动驱动器计数器
页数	文件大小	规格书
106页	2819K
描述
BD71815AGW凭借罗姆出众的模拟设计技术实现了“i.MX 7Solo/7Dual”处理器驱动的很好的电源系统。它不仅拥有与以往产品同等的功率转换效率（82%以上），还成功将待机时的电流消耗减少了16％※1，这是在应用中实现低功耗的关键。此外，还内置了30V耐压的带输入过电压保护功能（OVP）的Li-ion电池充电器和LED驱动器（6灯）。由于开关频率高速化（6MHz）实现的外接线圈的小型化、搭载功能的优化、以及采用WL-CSP的小型封装（16mm²：面积比以往减少75％）的应用，使得包含外接零件在内的贴装面积大幅度减少。内置库仑计数器，采用搭载罗姆独创算法的参考软件，实现了高精度电池余量监视。本产品对移动设备所追求的“低功耗”、“小型化”、“高精度”做出了很大贡献。※1 Buck converter部每个信道的消耗电流

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

BD71815AGW 数据手册

Datasheet

System PMIC for

Battery Powered Systems

BD71815AGW

General Description



Battery Monitoring and Alarm Output

-Under Voltage Alarm while discharging

-Over Current Alarm

-Over/Under Temperature Alarm

-Programmable thresholds and time durations

Real Time Clock with 32.768kHz crystal oscillator

-32.768kHz clock output

BD71815AGW is a single-chip power management IC

for battery-powered portable devices. The IC integrates

5 buck converters, 8 LDOs, a boost driver for LED, and

a 500mA single-cell linear charger. Also included is a

Coulomb counter, a real-time clock (RTC), a 32 kHz

crystal oscillator and a general-purpose output (GPO).

(Open Drain or CMOS Output Selectable)

1 GPO (Open Drain or CMOS Output Selectable)

Power Control I/O

The IC’s buck converters supply power to the application

processor as well as system peripherals such as DDR

memory, wireless modules, and touch controllers. These

regulators maintain high efficiency over a wide range of

current loads by supporting both PFM and PWM modes.

They also operate at a high switching frequency of

6MHz, which allows the use of smaller and cheaper

inductors and capacitors. The regulator supplying the

processor core also supports Dynamic Voltage Scaling

(DVS).



-Power On/Off control input

-Standby Input for switching RUN/SUSPEND State

-Reset Input to reset hung PMIC

-Power On Reset output

1 LED Indicator

-Indicate charger status



I2C interface

Applications

Features



E-Book reader



5 buck converters:

Media players with smart devices, wearables

Portable Navigation Devices with Home POS,

Human Machine Interfaces

- 3 1000mA buck converters

- 1 800mA buck converter

- 1 500mA buck converter



3 general-purpose LDOs

- 2 100mA LDOs

Key Specifications

- 1 50mA LDO



Input Voltage Range (DCIN):

Input Voltage Range (VIN, VSYS): 2.9V to 5.5V

Input Voltage Range (DVDD):

Off Current:

3.5V to 28V



LDO for DDR Reference Voltage (DVREF)

LDO for Secure Non-Volatile Storage (SNVS)

LDO for Low-Power State Retention (LPSR)

LDO for SD Card with dedicated enable terminal

LDO for SD Card Interface with dedicated terminal

to dynamically change output voltage

White LED Boost Converter

1.5V to 3.4V

20 μA (Typ)

[RTC+ Coulomb counter+ LDO_SNVS only]



Operating temperature range:

-40°C to +85°C



-25mA LED Boost Converter

Package

UCSP55M4C

W(Typ) x D(Typ) x H(Max)

4.0mm x 4.0mm x 0.62mm

Single-cell Linear LIB Charger with 30V OVP

-Selectable charging voltage: 3.72 to 4.34 V

-Programmable charge current: 100 to 500mA

-Support for up to 2000mA charge current using

external MOSFET

D71815A

-DCIN over voltage protection

-Battery over voltage protection

-Battery Supplement Mode support

-Battery Short Circuit Detection



Voltage Measurement for Thermistor

-Bias voltage output for External Thermistor

Embedded Coulomb Counter for Battery Fuel

Gauging

-15-bit ΔΣ-ADC with External Current Sense

Resistor (10 mΩ, ±1% or 30mΩ, ±1%)

-1-sec cycle, 28-bit accumulation

-Coulomb count while charging/discharging

(Unit :mm)

〇Product structure : Silicon monolithic integrated circuit 〇This product has no designed protection against radioactive rays

.www.rohm.com

TSZ02201-0Q4Q0AB00610-1-2

3.Mar.2017 Rev.002

1/103

TSZ22111 • 14 • 001

12 3 4 5 6 7...106

中文翻译

下载PDF

与BD71815AGW相关器件

型号	品牌	获取价格	描述	数据表
BD71815AGW-E2	ROHM	获取价格	Power Supply Management Circuit, Adjustable, 15 Channel, PBGA80, UCSP55M4C-80
BD71837AMWV	ROHM	获取价格	BD71837AMWV是一款PMIC，集成了i.MX 8M处理器所需的电源和功能，运用了罗
BD71837AMWV-E2	ROHM	获取价格	Power Supply Management Circuit,
BD71847AMWV	ROHM	获取价格	BD71847AMWV是融入ROHM多年积累的处理器用电源技术，并集成了恩智浦公司的i.M
BD71850MWV	ROHM	获取价格	BD71850MWV是运用罗姆此前积累的处理器用电源技术，集成了i.MX 8M Nano
BD7185AGWL	ROHM	获取价格	Power Management LSI
BD7185AGWL-E2	ROHM	获取价格	Power Management LSI
BD719	ISC	获取价格	isc Silicon NPN Power Transistor
BD719	NJSEMI	获取价格	Trans GP BJT NPN 60V 4A
BD71L3SHFV	ROHM	获取价格	罗姆的过电压检测IC采用CMOS工艺，实现了高精度、超低消耗电流。输出形式为Nch漏极开路

与BD71815AGW相关文章

英伟达新AI芯片Rubin或提前半年亮相
2024-11-05

13
苹果iPhone 17将全系采用三星/LG显示LTPO OLED面板
2024-11-05

7
三星深化印度制造布局，供应链本地化进程加速
2024-10-29

31
芯擎科技“星辰一号”自动驾驶芯片点亮成功，2025年量产在即
2024-10-29

30

产品中心

服务支持

精选活动

关于我们

帮助中心

BD71815AGW

BD71815AGW 数据手册

与BD71815AGW相关器件

与BD71815AGW相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

BD71815AGW

BD71815AGW 数据手册

与BD71815AGW相关器件

与BD71815AGW相关文章

您还可以找

您在本页遇到什么问题？