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ADI/LINEAR ICL7662EBA+T ICL7662EBA
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- ADI(Analog Devices) / LINEAR ICL7662EBA+T
- Type
- ADI/LINEAR
- Minimum package
- 2500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- ADI(Analog Devices) / LINEAR
- Electronic Component
- ICL7662EBA+T
- Electronic Component
- 1
- Package
- SOIC-8
- Electronic Component
- Charge Pump
- Electronic Component
- 0.219g
- Electronic Component
- 1
- Features
- Electronic Component
- Type
- Electronic Component
- Electronic Component
- BM0258856515
- Operating Temperature
- 40℃~+85℃
- Operating Voltage
- 4.5V~20V
- Switching Frequency
- 10kHz
- Electronic Component
- 96%
- Output Resistor
- 100Ω
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
ICL7662EBA+T 产品概述
一、简介
ICL7662EBA+T 是一款基于电荷泵技术的反相稳压器，适合在单电源系统中生成稳定的负电压轨。其工作电压范围为 4.5V 至 20V，能够提供 -4.5V 到 -20V 的输出电压，最大输出电流为 20mA。器件采用 8 引脚 SOIC 封装，来自 ADI / Linear 系列，适用于对空间与成本敏感的便携式与工业应用。
二、主要性能参数
- 功能类型：反相（Charge Pump Inverter）
- 输入电压 Vin：4.5V ~ 20V
- 输出电压 Vout：-4.5V ~ -20V
- 输出电流：最大 20mA
- 静态电流 Iq：200μA（典型）
- 等效输出电阻 Rout：约 100Ω
- 能量效率：高达 96%（典型工况）
- 开关频率：10kHz 固定
- 工作温度范围：-40℃ ~ +85℃
- 功能特性：支持级联以获得更高电压或更大电流能力
- 封装：SOIC-8（带卷带）
三、典型应用场景
- 运算放大器与模拟电路的负电源生成（如 ± 电源系统的负轨）
- 便携式仪表与手持设备的电压反转与偏置供电
- 传感器、AD/DA 前端的负偏置电源
- 小功率隔离、逻辑电平转换和测试平台的辅助负电源
四、设计要点与建议
- 外部泵电容与旁路电容应选用低 ESR、低寄生的陶瓷或钽电容，以降低输出纹波与提升瞬态响应。常见设计中泵电容与输出旁路电容放置应尽量靠近器件引脚，缩短回路面积。
- 由于器件等效输出电阻约为 100Ω，负载电流增加时输出电压会有明显压降，应在设计中预留余量或采用级联提升能力。
- 固定开关频率 10kHz 在布局时需注意 EMI 管理，必要时在输入端加小型滤波或阻尼元件以抑制射频噪声。
- 静态电流仅 200μA，适合电池供电应用，但在长时间空载与睡眠模式下仍需考虑总耗电。
五、级联与扩展使用注意
- 器件支持级联连接以获得更大负电压或更高负载能力，但级联时要关注级间电容的选型、漏电流累积以及总输出阻抗增长。
- 级联系统的稳定性依赖于各级的负载分配与旁路策略，建议在设计时进行仿真与实测验证。
- 多级串联将提高总纹波与噪声，必要时采用滤波或稳压后级来改善输出品质。
六、封装与选型建议
ICL7662EBA+T 提供工业级工作温度与 SOIC-8 标准封装，适合集成到标准 PCB 工艺。针对不同功率与电压要求，可在 ADI/Linear 的同类电荷泵产品线中比较静态电流、输出阻抗与引脚兼容性，选择最合适的替代或并联方案。
小结：ICL7662EBA+T 以其宽输入电压范围、较高的能量效率与低静态电流，适合为中低功率模拟与便携设备提供可靠的负电压源。合理的外部电容选型与 PCB 布局，以及在需要时采用级联扩展，是发挥其最佳性能的关键。
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