WMSIC Electronic Components

CrossChip CC6920BSO-20A CC6920BSO

ModelCC6920BSO-20A
PackageSOP-8
BrandCrossChip
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Cross Chip CC6920BSO-20A
Type
CROSSCHIP
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CROSSCHIP
Electronic Component
CC6920BSO-20A
Electronic Component
1
Package
SOP-8
Electronic Component
250kHz
Electronic Component
Current Sensor
Electronic Component
0.122g
Electronic Component
66mV/A
Electronic Component
1
Electronic Component
BM0226535490
Operating Temperature
40℃~+125℃
Operating Voltage
3.3V
Current
20mA
Current Resistor
0.9mΩ
(tr)
1us

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

CC6920BSO-20A 产品概述

一、产品简介

CC6920BSO-20A 是 CrossChip(成都芯进)推出的一款单芯片差分霍尔电流传感器,采用 SOP-8 封装,面向要求高隔离、电流双向测量和宽频带响应的电源、逆变器及电机驱动等应用场景。器件集成霍尔元件与磁路设计,能在高共模隔离条件下实现零磁饱和、低电阻导流端和宽带宽的电流测量,支持 -20A 到 +20A 的双向测量范围,适合以 3.3V 供电的数字采集系统。

二、主要参数

  • 测量方式:差分霍尔单芯片电流传感器(双向测量)
  • 电流测量范围:-20A ~ +20A
  • 灵敏度:66 mV/A(差分)
  • 工作电压:3.3 V
  • 待机电流:20 mA(典型)
  • 电流端电阻(导流端):0.9 mΩ(低损耗)
  • 带宽:250 kHz(-3 dB)
  • 响应时间 (tr):1 μs(典型)
  • 隔离电压:3500 Vrms
  • 工作温度:-40 ℃ ~ +125 ℃
  • 封装:SOP-8

说明:差分灵敏度 66 mV/A 意味着差分输出随电流变化的幅度为 66 毫伏每安培;在满量程 ±20A 时,差分输出变化约为 ±1.32 V。

三、主要特点

  • 高隔离能力:3500 Vrms 隔离等级,适合对安全隔离有较高要求的工业与能源系统。
  • 双向测量:支持正负方向电流检测,利于电机再生、双向能量流场景。
  • 宽带宽与快响应:250 kHz 带宽、1 μs 响应时间,可精确跟踪快速电流瞬态与 PWM 分量。
  • 低导流端电阻:0.9 mΩ 的电流端电阻将插入损耗与发热降到最低,有利于高电流连续工作。
  • 适配 3.3V 系统:直接与 MCU/ADC 等 3.3V 前端接口兼容,便于系统集成。
  • 差分输出:差分方式天然抗共模干扰,提高测量鲁棒性与抗噪能力。

四、典型应用

  • 电机驱动与伺服放大器电流检测(闭环控制、故障检测)
  • 逆变器与充放电系统的电流监测(双向能量流)
  • 开关电源、电源管理单元的输出电流与输入电流检测
  • 电池管理系统(BMS)中高精度电流采样(需配合校准)
  • 功率测量、保护电路与能量计量模块

五、使用建议与参考设计要点

  • 差分测量链路:建议将 OUT+ / OUT- 直接送入差分放大器或差分输入 ADC,以发挥差分输出优势,减少共模噪声影响。
  • 偏置与量程:器件差分输出在零电流时应有稳定偏置(详见完整数据手册);在设计 ADC 采样前,确认 common-mode 电压范围与 ADC 输入规格匹配,必要时用差分放大器或偏置电路调整。
  • 抗混叠与滤波:针对高频 PWM 分量与采样系统,建议在差分输出端加入对称的低通滤波器(差分 RC 或差分滤波器),既能防止别名,又不会显著影响瞬态响应;滤波截止频率宜根据带宽与采样率权衡。
  • 热管理与功耗:在 20 A 持续电流下,导流端产生的铜耗约为 I^2·R = 400 × 0.0009 ≈ 0.36 W,应考虑散热路径与周边温升,必要时进行散热设计或降低连续电流等级。器件自身工作电流(20 mA @ 3.3 V)对应约 66 mW 的功耗,应在系统热预算中考虑。
  • PCB 布局:保持传导导体与霍尔敏感区域紧密并尽量垂直布线,减少寄生环路、避免旁路电流流过敏感区域,输出信号线尽量走差分对并靠近地平面,电源端加稳压与去耦电容。
  • 校准:为获得较高精度,建议在出厂或首次上电时做零点漂移与增益校准,温度漂移可通过软件温度补偿或硬件补偿实现。

六、封装与可靠性

CC6920BSO-20A 采用 SOP-8 封装,便于自动贴装与大规模量产。工作温度覆盖 -40 ℃ 至 +125 ℃,可胜任大多数工业级环境。3500 Vrms 隔离能力满足工业控制与能量转换系统的安全隔离要求。建议参照完整机械图与焊接规范进行 PCB 设计与制造。

七、选型与支持

CC6920BSO-20A 适用于需要高隔离、低功耗损耗、快速响应和双向电流测量的场合。欲获得器件脚位定义、电气典型曲线、温漂特性及详细参考电路,请参考 CrossChip 官方数据手册或联系供应商技术支持,以确保在目标系统中实现最佳性能与可靠性。

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