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PCA9516APW,118 PCA9516APW
Configuration
1 options
Configuration
24+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- NXP PCA9516APW, 118
- Type
- NXP
- Minimum package
- 2500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- NXP
- Electronic Component
- PCA9516APW,118
- Electronic Component
- 1
- Package
- TSSOP-16
- Type
- Driver; Buffer
- Electronic Component
- Signal Buffer / Repeater / Distributor
- Electronic Component
- 0.001g
- Electronic Component
- 1
- Channel Count
- 5
- Features
- Bus Capacitor Isolated; Isolated
- Electronic Component
- BM0248788249
- Operating Temperature
- 40℃~+85℃
- Operating Voltage
- 2.3V~3.6V
- Capacitor
- 6pF
- Type
- 2 Bus
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
PCA9516APW,118 产品概述
一、功能简介
PCA9516APW,118 是恩智浦（NXP）提供的一款用于双线式总线的缓冲器/转接驱动器，面向多段 I2C/两线制总线系统的隔离与分段管理。器件以单一供电（工作电压 2.3V ~ 3.6V）工作，封装为 TSSOP-16，工作温度范围 −40℃ 到 +85℃，支持最高总线速率 400 kHz，可显著改善总线负载能力与系统可靠性。
二、主要性能特点
- 支持两线式总线（SDA/SCL）输入与输出，适用于 I2C 类开漏总线结构。
- 5 通道设计，可对多路总线段进行独立缓冲或转接（具体通道数与引脚功能参照数据表）。
- 工作电压范围 2.3V ~ 3.6V，适配常见 3.3V/2.5V 系统电平（在允许范围内）。
- 最高支持 400 kHz 总线速率（Fast-mode），适合常见高速控制/传感器场景。
- 输入电容典型值 6 pF（降低了对前端总线的负载），有助于延长总线长度和连接器使用。
- 工业级工作温度（−40℃ ~ +85℃）适用于消费与工业级应用。
- 16 引脚 TSSOP 封装，便于板级布线与散热。
三、典型应用场景
- 多分支 I2C 总线拓扑中分段隔离，避免单总线大电容导致时序与通信失败。
- 高速传感器、时钟芯片、EEPROM 与 MCU 之间的信号驱动与缓冲。
- 板对板或长线缆传输时的总线延伸与稳健化。
- 工业控制、嵌入式系统与消费电子中，需要多路总线管理与抗干扰能力增强的场合。
四、典型连接与设计注意事项
- 器件用于开漏总线时，系统仍需在每段总线上配置适当的上拉电阻。上拉阻值应根据总线速率与总线电容选择：低速可用更大阻值，高速（400 kHz）需减小阻值以满足上升时间要求。
- 在 VCC 引脚附近放置 0.1 μF 陶瓷去耦电容，减小电源瞬态影响。
- 布线时尽量缩短信号回路，避免长串扰线，同时确保总线分段各自的电容控制在可接受范围内。
- 若系统存在 ESD 风险，建议在重要输入输出处加外部保护元件，或在 PCB 布局上采取相应防护措施。
五、封装与采购信息
- 品牌：NXP（恩智浦）
- 封装：TSSOP-16
- 型号示例：PCA9516APW,118（请以最新数据手册和供应商信息为准）
- 工作温度：−40℃ ~ +85℃
使用该器件时，应结合官方数据手册核对引脚定义、等效电路、上拉电阻建议以及时序参数，按照具体应用场景调整上拉值和布线策略，以获得稳定可靠的总线性能。
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