BD71847AMWV
NXP i.MX 8M Mini 系列 面向应用处理器的PMIC
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.MX 8M Mini系列处理器所需的电源系统（Power Rail）与功能的PMIC。仅1枚芯片即可提供包括功率转换效率高达95%的高效率DC/DC转换器在内的系统所需的电源和保护功能，同时还内置进行电源管理的ON/OFF时序器，不仅有助于应用的小型化，还使应用设计更加容易，并大大缩短开发周期。
BD71847AMWV的电源电路根据i.MX 8M系列应用处理器的电源系统设计而成，集控制逻辑、6通道降压型DC/DC转换器（Buck Converter）、6通道LDO于一身，仅这1枚芯片，不仅可为处理器供电，还可为应用所需的DDR存储器供电。此外，还内置有SDXC卡用1.8V/3.3V开关、32.768kHz晶振缓冲器、众多保护功能（各电源系统的输出短路、输出过电压、输出过电流及热关断等）。
该产品还搭载功率转换效率高达95%的降压型DC/DC转换器，输入电压范围更宽，支持从1节锂离子电池到USB的广泛电压范围（2.7V~5.5V），因此，不愧为i.MX 8M Mini处理器应用领域的PMIC。
采用小型QFN封装(7mm x 7mm, 高度1mm Max, 间距0.4mm, 56pin)，不仅可提供所需的电源功能，而且PMIC的引脚配置设计还使i.MX 8M Mini应用处理器和DDR存储器的连接更加容易，非常有助于减轻PCB板布局设计时的负担。同分立元器件组成的与新产品相同的电源系统相比，部件数量可减少42个，贴装面积可缩减42%（以“单面贴装、Type-3 PCB”为条件）。另外，如果采用双面贴装，则仅需不到400mm2的空间即可实现电源功能。
主要规格
型号 | BD71847AMWV-E2
封装 |
UQFN56BV7070
包装形态 | Taping
包装数量 | 1500
最小独立包装数量 | 1500
RoHS |
Yes
特性：
SW frequency(Max.)[MHz]
2
Operating Temperature (Min.)[°C]
-40
Operating Temperature (Max.)[°C]
105
Package Size [mm]
7x7 (t=1)
Find Similar
特点：
- 6 Buck Regulators
- 2.0 MHz Switching Frequency.
(BUCK1, BUCK2, BUCK5, BUCK7, and BUCK8). - 1.5MHz Switching Frequency. (BUCK6)
- Target Efficiency: 83% to 95%.
- 6ch Linear Regulators (6 LDOs)
- Power Mux Switch
- 1.8V/3.3V Input: 500 mΩ(Max)
- 32.768 kHz Crystal Oscillator Driver
- Power Button Detector
- Protection and Monitoring: Soft Start, Power Rails Fault Detection, UVLO, OVP and TSD
- OTP Configurable Power Sequencing
- OTP and Software Programmable Output Voltage, Ramp rates.
- Hardware Signaling with SoC for Transition into or out of Low Power States
- Interfaces:
- I2C: 100 kHz/400 kHz, 1 MHz
- Power-on Reset Output: POR_B, RTC_RESET_B,
- Watchdog Reset Input: WDOG_B:
- Power State Control: PMIC_STBY_REQ, PMIC_ON_REQ, PWRON_B
- Interrupt to SoC: IRQ_B
- Type3 PCB Applicable
- google hint
var relNextURL = $('a[curtab="#TechD"]').attr('href');
$('head').append('
');
var hdsheetlnkobj = $('a#hdsheetlnk');
var packagelnkobj = $('a#packagelnk');
var fdsheetlnkobj = $('a#fdsheetlnk');
$('a.pvdsheet').addClass("nonreg");
hdsheetlnkobj.attr('href',pdfQRCodeResourceUrl+'/pdetail/'+hdsheetlnkobj.attr("pncode")+'/'+hdsheetlnkobj.attr("pflag")+'/'+hdsheetlnkobj.attr("pno"));
packagelnkobj.attr('href',pdfQRCodeResourceUrl+'/pdetail/'+packagelnkobj.attr("pncode")+'/'+packagelnkobj.attr("pflag")+'/'+packagelnkobj.attr("pno")+'/code/'+packagelnkobj.attr("pcode"));
fdsheetlnkobj.attr('href',pdfQRCodeResourceUrl+'/pdetail/'+fdsheetlnkobj.attr("pncode")+'/'+fdsheetlnkobj.attr("pflag")+'/'+fdsheetlnkobj.attr("pno"));
licenseContentUrl = '';
if(licenseContentUrl.indexOf('?') > 0){
licenseContentUrl = licenseContentUrl.substring(0,licenseContentUrl.indexOf('?'));
}
getBatchDownloadData= '';
if(getBatchDownloadData.indexOf('?') > 0){
getBatchDownloadData = getBatchDownloadData.substring(0,getBatchDownloadData.indexOf('?'));
}
downloadBatchFiles = '';
if(downloadBatchFiles.indexOf('?') > 0){
downloadBatchFiles = downloadBatchFiles.substring(0,downloadBatchFiles.indexOf('?'));
}
designFileSaveDialogUrl = '';
if(designFileSaveDialogUrl.indexOf('?') > 0){
designFileSaveDialogUrl = designFileSaveDialogUrl.substring(0,designFileSaveDialogUrl.indexOf('?'));
}
getProductFile = '';
if(getProductFile.indexOf('?') > 0){
getProductFile = getProductFile.substring(0,getProductFile.indexOf('?'));
}
getDistributorDownloadPopup = '';
if(getDistributorDownloadPopup.indexOf('?') > 0){
getDistributorDownloadPopup = getDistributorDownloadPopup.substring(0,getDistributorDownloadPopup.indexOf('?'));
}
getProductInfoTab = '';
if(getProductInfoTab.indexOf('?') > 0){
getProductInfoTab = getProductInfoTab.substring(0,getProductInfoTab.indexOf('?'));
}
jQuery("#nrndRelatedProductData").clone(true).prependTo('.table-wrap').addClass('clone');
// JIRA - 2939
getDocumentsResourceData = ':443/products?p_p_id=com_rohm_product_detail_web_RohmProductDetailWebPortlet&p_p_lifecycle=2&p_p_state=normal&p_p_mode=view&p_p_resource_id=detail%2FgetDocumentsResourceData&p_p_cacheability=cacheLevelPage';
//getDocumentsResourceData += getDocumentsResourceData.substring(0,getDocumentsResourceData.indexOf('?'))+"/getDocResuorce/";
getDocumentsResourceDataAjaxCall(seoProdName, "tableView");
jQuery("#toggleButton").on("click",function (){
var viewName = $(this).attr('viewName');
console.log("Button1 is clicked targetViewName is : "+ viewName);
getDocumentsResourceDataAjaxCall(seoProdName, viewName);
});
if(productNodeCode.startsWith('4010')){
searchbySpecificationCount();
}
});
function getDocumentsResourceDataAjaxCall(seoProdName, viewName){
$("#designResourcesDataContainer").html("
");
$.ajax ({
url:getDocumentsResourceData+seoProdName,
type: 'POST',
dataType: "html",
cache: false,
data: {
"partNumber" : seoProdName,
"pageViewType" : viewName
},
success: function(response){
$("#designResourcesDataContainer .ajaxloading").css('display','none');
$("#designResourcesDataContainer").html(response);
setTimeout(function() {
if($('.DRtools_video_tps').length > 0){
$.Zebra_Tooltips($('.DRtools_video_tps'));
}
}, 3000);
}, error: function (e) {
console.log("getDocumentsResourceDataAjaxCall ERROR........... : "+ e);
}
});
}
