Datasheet > RAA271082

RAA271082

更新时间： 2024-12-01 14:57:59

品牌	Logo	应用领域
瑞萨 - RENESAS		集成电源管理电路
页数	文件大小	规格书
76页	1794K
描述
Automotive ASIL B PMIC with Three Synchronous Buck Regulators and One Low Dropout Linear Regulator

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

RAA271082 数据手册

Datasheet

RAA271082

Automotive PMIC with Three Synchronous Buck Regulators and One Low Dropout Linear Regulator

The RAA271082 is a versatile multi-rail power IC

comprised of a primary high voltage synchronous

▪ ASIL-D ISO26262 Development Process

buck regulator, two secondary low voltage

Features

▪ VIN Operating Range from 4.0 to 42V

synchronous buck regulators, and an LDO regulator.

• Start Range 4.5 to 42V

It offers four overvoltage and undervoltage monitors,

I C communications, a general-purpose I/O pin, and a

▪ Fixed Switching frequency: 2.2MHz with optional

dedicated reset output/fault indicator. RAA271082

was designed using an ASIL-D ISO-26262

pseudo-random spread spectrum

▪ Three synchronous bucks with internal

development process and is intended to meet ASIL-B

device metrics. The RAA271082 includes a second

bandgap reference for the OV/UV monitors, built-in

self-test at power-up, independent OV/UV monitoring,

and continuous CRC error checking on internal

compensation and one LDO

• Buck1 output range: 2.8V to 5.05V, up to 1A

• Buck2/3 output range: 0.85V to 3.3V, up to 1A

• LDO4 output range: 2.7V to 3.4V, up to 300mA

▪ OTP UV/OV Thresholds: ±4%, ±6%, ±8%, ±12%

▪ OTP power up/down sequence and delay

registers and I C communications.

Requiring few external components and minimal

board space, the RAA271082 provides a high-density

power solution. It offers an extensive feature set

configured using internal One-Time Programmable

(OTP) memory. Nearly all device options such as

each output voltage selection, power sequencing, and

OV/UV thresholds are internally configured and

require no external components for selection. The

regulators also offer internal compensation. The

bucks are synchronous to achieve high efficiency and

are capable of operating in harsh environments

requiring high ambient temperature.

▪ Optional output discharge on Buck2, Buck3, and

LDO4

▪ Configurable GPIO pin

▪ Dual EN pins

▪ Protection Features

• Input Voltage UVLO

• Output OV/UV

• Overcurrent protection on internal and output

LDOs

• Over-temperature shutdown

▪ Functional Safety Features

The RAA271082 is available in a 4mm×4mm 24-lead

Step Cut QFN (SCQFN) package with an exposed

pad for improved thermal performance. It is

AEC-Q100 qualified to Grade 1 and operates across

an ambient temperature range of -40°C to 125°C and

is electrically specified across a junction temperature

range of -40°C to 150°C. Automotive PMIC for 32-bit

Microcontrollers in BMS, Zone Controller, Domain

Controller, and Gateway applications.

• Built-in Self Test (BIST) at power up

• Dual Bandgap/Reference Chains

• Independent UV/OV sense path for Buck1

Output

• Configurable Window Watchdog Timer (WWDT)

• Continuous CRC checking of OTP shadow

registers

• CRC protected I C communication

Applications

▪ Driver monitoring cameras

• Configurable fault manager

▪ AEC-Q100 Qualified, Grade 1: -40°C to +125°C

▪ Rear and surround view HD automotive cameras

(T = 150°C)

▪ Microcontroller PMIC for battery management

systems

▪ Microcontroller PMIC for zone and domain

controllers

▪ Microcontroller PMIC for gateway units

R33DS0019EU0100 Rev.1.00

Jul 13, 2022

Page 1

12 3 4 5 6 7...76

中文翻译

下载PDF

与RAA271082相关器件

型号	品牌	获取价格	描述	数据表
RAA278840	RENESAS	获取价格	LCD Video Processor with Decoder, LVDS, TTL, MIPI, Improved Upscaling Engine, and Video In
RAA278842	RENESAS	获取价格	LCD 视频处理器，带双通道 LVDS 开放式 LDI 面板接口和单独的 MIPI-CSI
RAA278843	RENESAS	获取价格	具有伪 BT.656 输出的 LCD 视频处理器
RAA279971	RENESAS	获取价格	汽车高清链接编码器
RAA279972	RENESAS	获取价格	汽车高清链接解码器
RAA279974	RENESAS	获取价格	Automotive High Definition Link 4 Channel Decoder
RAA28	ETC	获取价格	Infrared I2C remote control decoder
RAA2-8	JST	获取价格	Ring tongue terminal (R-type, Vinyl-insulated) (straight)
RAA2900014H12HPD	RENESAS	获取价格	Intelligent Power Device
RAA2900024H12HPD	RENESAS	获取价格	Intelligent Power Device

与RAA271082相关文章

解析光耦仿真器：升级光耦合器技术的必要性
2024-11-18

52
英伟达新一代Blackwell GPU过热问题致交付延迟
2024-11-18

41
国产厂商思特威CMOS图像传感器芯片单月出货超1亿颗，技术创新引领行业发展
2024-11-14

69
台积电5nm和3nm产能利用率达100%，半导体行业景气度持续攀升
2024-11-14

65

产品中心

服务支持

精选活动

关于我们

帮助中心

RAA271082

RAA271082 数据手册

与RAA271082相关器件

与RAA271082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

RAA271082

RAA271082 数据手册

与RAA271082相关器件

与RAA271082相关文章

您还可以找

您在本页遇到什么问题？