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PCA9848PWJ
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
20
specifications
Core information
- Product name
- NXP PCA9848PWJ
- Type
- NXP
- Unit
- Electronic Component
- Minimum package
- 2500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- NXP
- Electronic Component
- PCA9848PWJ
- Electronic Component
- 1
- Package
- 24-TSSOP
- Type
- FETSwitch
- Electronic Component
- Signal Switch / Codec / Multiplexer
- Electronic Component
- 0.26g
- Electronic Component
- 1
- Features
- Level Conversion
- Electronic Component
- BM0262715416
- Operating Temperature
- 40℃~+85℃
- Operating Voltage
- 800mV~3.6V
- Power Supply
- Power Supply
- Current(IOL)
- 20mA
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
PCA9848PWJ 产品概述
一、概述
PCA9848PWJ 是恩智浦（NXP）提供的一款 8 通道总线开关（IC BUS SWITCH），封装为 24‑TSSOP，面向需要在多电压域或多路总线之间进行选择性连接与隔离的应用场景。器件支持双电源工作，适合低压系统，具有极低的静态电流与快速的传播延迟，便于构建低功耗且响应迅速的总线切换方案。
二、主要电气参数
- 工作电压范围：0.8 V ~ 3.6 V（双电源拓扑，便于不同电平域互连）
- 最大灌电流 (IOL)：20 mA
- 静态电流 (Iq)：典型 12 μA（低功耗待机）
- 传播延迟 (tpd)：1 ns @ 3.3 V, 负载 50 pF（快速通断，适合对延迟敏感的总线）
- 工作温度范围：-40 ℃ ~ +85 ℃
- 封装：24‑TSSOP
三、典型应用
- 多主机或多从机 I²C/SMBus 总线多路切换与隔离
- 在不同电压域之间的总线连接（电平域隔离/切换）
- 测试夹具与边界扫描系统中的通道选择
- 嵌入式系统中需要动态断开/连接外设的低功耗场景
四、设计要点与建议
- 总线电容：规格中 tpd 测试在 50 pF 条件下，实际设计应控制总线电容以保证开关性能与信号完整性。
- 上拉电阻：为保证信号恢复速度与总线兼容性，应根据总线负载与期望上升时间选择合适的上拉电阻。
- 热与电流限制：单通道最大灌电流 20 mA，系统设计时应避免长期接近极限以减小热耗散与可靠性风险。
- 电源注意事项：采用双电源连接时，确认电源顺序与参考地连接良好，避免在不当顺序下造成电流回流或损伤。
- ESD 与滤波：若用于工业或现场环境，建议在总线两端加相应的ESD保护与共模抑制措施。
五、优势总结
PCA9848PWJ 以其宽电压兼容（0.8–3.6 V）、低静态功耗（~12 μA）、快速开关延迟（1 ns @3.3 V）及 8 通道集成度，适合体积受限且需动态管理多路总线的嵌入式与消费类电子设备。24‑TSSOP 封装便于 PCB 布局与自动化装配，是实现低功耗、高响应性的总线管理解决方案的可靠选择。
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