产品概述
描述
The SEA05 is a highly integrated solution for SMPS applications requiring a dual control loop to perform CV (constant voltage) and CC (constant current) regulation.
The device integrates a voltage reference, two opamps (with OR-ed open-drain outputs), and a lowside current sensing circuit.
The voltage reference, along with one op-amp, is the core of the voltage control loop; the current sensing circuit and the other op-amp make up the current control loop.
The external components needed to complete the two control loops are: a resistor divider that senses the output of the power supply and fixes the voltage regulation setpoint at the specified value; a sense resistor that feeds the current sensing circuit with a voltage proportional to the dc output current; this resistor determines the current regulation setpoint and must be adequately rated in terms of power dissipation; the frequency compensation components (R-C networks) for both loops.
The device, housed in one of the smallest available package, is ideal for space-shrunk applications such as adapters and chargers.
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所有功能
- Open-drain output stage
- Current sense threshold: 50 mV
- SOT23-6L micro package
- Constant voltage and constant current control
- Low quiescent consumption: 200 µA
- Wide operating VCC range [3.5 - 36] V
- Voltage control loop accuracy +/- 0.5%
- Low external component count
- Voltage reference: 2.5 V
特别推荐
EDA符号、封装和3D模型
意法半导体 - SEA05
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符号
封装
3D模型
样片和购买
| 产品型号 | 供货状态 | Budgetary Price (US$)*/Qty | 从ST订购 | Order from distributors | 包 | 包装类型 | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating Temperature (°C) (min) | Operating Temperature (°C) (max) | Reference Voltage (V) (nom) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SEA05TR | | | distributors 无法联系到经销商，请联系我们的销售办事处 |
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SEA05TR 批量生产