WMSIC Electronic Components

RENESAS ISL21010CFH320Z-TK ISL21010CFH320Z

ModelISL21010CFH320Z-TK
PackageSOT-23-3
BrandRENESAS
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
RENESAS ISL21010CFH320Z-TK
Type
RENESAS
Minimum package
1000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RENESAS
Electronic Component
ISL21010CFH320Z-TK
Electronic Component
1
Package
SOT-23-3
Electronic Component
Voltage Reference IC
Electronic Component
±0.2%
Electronic Component
0.204g
Electronic Component
1
Electronic Component
BM0265277755
Operating Temperature
40℃~+125℃@(Ta)
Operating Voltage
2.2V~5.5V
Electronic Component
50ppm/℃
Output Voltage
2.048V
Output Current
25mA
Output Type
Electronic Component

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

ISL21010CFH320Z-TK 高精度串联电压基准产品概述

一、产品核心定位与设计背景

ISL21010CFH320Z-TK是瑞萨电子针对工业自动化、汽车电子、低功耗监测等场景推出的工业级固定输出串联电压基准芯片。其核心设计目标是解决传统基准芯片“精度不足、宽温漂移大、功耗高”的痛点,无需外部调整元件即可为ADC/DAC、传感器信号调理、仪表电路提供稳定的2.048V参考电压,适配3.3V/5V主流系统电压,适合紧凑PCB布局与极端环境应用。

二、关键性能参数解析

1. 输出精度与温度稳定性

  • 初始精度:±0.2%(25℃时),输出电压波动范围为2.048V±4.096mV,满足多数12位ADC(LSB≈1mV)、16位ADC(部分高要求场景)的基准需求;
  • 温度系数:50ppm/℃,是衡量温度对输出影响的核心指标——每变化1℃,输出电压变化仅0.1024mV(50×2.048V/1e6);即使在-40℃~125℃宽温范围内(温差165℃),总漂移也仅约17mV,远低于工业系统对基准波动<50mV的普遍要求。

2. 工作与输出能力

  • 工作电压范围:2.2V~5.5V,覆盖3.3V、5V等主流系统电压,无需额外升压/降压电路即可直接供电;
  • 输出电流:25mA(最大),可同时驱动2~3个12位ADC(每个ADC基准端电流通常<10uA)或小型负载电路,减少系统中基准芯片的数量;
  • 静态电流:仅100uA,低功耗特性适合电池供电设备(如手持测试仪器、无线传感器节点),单节锂电池(3.7V)供电时静态功耗仅0.37mW,续航提升明显。

3. 环境适应性

  • 工作温度范围:-40℃125℃(工业级宽温),可适应汽车发动机舱(-40℃105℃)、户外工业现场(-30℃~85℃)等极端温度场景;
  • 封装:SOT-23-3(超小型表面贴装),尺寸仅2.9mm×1.6mm×1.0mm,适合紧凑PCB布局(如汽车ECU、小型物联网节点)。

三、封装与引脚配置

ISL21010CFH320Z-TK采用SOT-23-3封装,引脚定义清晰(参考瑞萨官方 datasheet):

  • Pin1(Vout):固定输出2.048V,建议并联100nF陶瓷电容增强抗噪;
  • Pin2(GND):接地端,需靠近PCB电源地减少噪声耦合;
  • Pin3(Vin):输入电压端,需接2.2V5.5V直流电源,若输入电压波动大可串联10Ω100Ω电阻限流。

四、典型应用场景

1. 工业自动化领域

  • PLC模拟量输入模块:为12位/16位ADC提供基准,保证压力、温度、流量传感器的信号采集精度(如010V模拟量输入,2.048V基准可对应16位ADC的065535计数);
  • 传感器信号调理电路:如应变式压力传感器的桥路输出放大,基准稳定可减少放大后的信号漂移。

2. 汽车电子领域

  • 车载传感器节点:胎压监测系统(TPMS)、氧传感器信号调理,宽温适应汽车舱内/外温度变化;
  • 车身控制模块(BCM):为车窗、座椅控制的模拟电路提供稳定基准,避免温度变化导致的控制误差。

3. 低功耗与便携式设备

  • 手持测试仪器:如便携式万用表、温度校准仪,100uA静态电流可延长电池续航(单节AA电池可工作数月);
  • 物联网(IoT)节点:如户外环境监测节点(温度、湿度),小尺寸封装适合节点PCB,低功耗减少太阳能板面积。

五、应用优势总结

  1. 设计简化:固定输出无需外部电阻/电容调整,SOT-23-3引脚少,PCB布局简单,降低研发周期;
  2. 高性价比:工业级精度+宽温+小尺寸,成本低于同性能的可调基准芯片,适合批量应用;
  3. 负载兼容性强:25mA输出可驱动多负载,减少系统中基准芯片的数量,降低BOM成本;
  4. 宽温可靠性:-40℃~125℃工作温度,满足汽车、工业等 harsh 环境的可靠性要求。

六、选型与注意事项

  • 供电要求:输入电压需≥2.2V(比输出电压高152mV),避免输入不足导致输出不稳定;
  • 输出负载:最大输出电流25mA,若负载超流需并联多个芯片或增加外部缓冲电路;
  • 抗噪设计:建议Vin与GND、Vout与GND各并联100nF陶瓷电容,减少电源噪声影响;
  • 精度升级:若需更高精度(±0.1%),可选择同系列的ISL21010BFH320Z-TK。

该芯片凭借“高精度、宽温、小尺寸、低功耗”的综合优势,成为工业、汽车、IoT等领域的主流基准选择。

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