LM25069
- Operating R ange: +2.9V to +17V
- In-rush Current Limit for Safe Board Insertion into Live Power Sources
- Programmable Maximum Power Dissipation in the External Pass Device
- Adjustable Current Limit
- Circuit Breaker Function for Severe Over-Current Events
- Internal High Side Charge Pump and Gate Driver for External N-channel MOSFET
- Adjustable Under-Voltage Lockout (UVLO) and Hysteresis
- Adjustable Over-Voltage Lockout (OVLO) and Hysteresis
- Initial Insertion Timer Allows Ringing and Transients to Subside After System Connection
- Programmable Fault Timer Avoids Nuisance Trips
- Active High Open Drain POWER GOOD Output
- Available in Latched Fault and Automatic Restart Versions
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The LM25069 positive hot swap controller provides intelligent control of the power supply voltage to the load during insertion and removal of circuit cards from a live system backplane or other "hot" power sources. The LM25069 provides in-rush current control to limit system voltage droop and transients. The current limit and power dissipation in the external series pass N-Channel MOSFET are programmable, ensuring operation within the Safe Operating Area (SOA). The POWER GOOD output indicates when the output voltage is within 1.3V of the input voltage. The input under-voltage and over-voltage lockout levels and hysteresis are programmable, as well as the initial insertion delay time and fault detection time. The LM25069-1 latches off after a fault detection, while the LM25069-2 automatically restarts at a fixed duty cycle. The LM25069 is available in a 10 pin VSSOP package.
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技术文档
类型 | 标题 | 下载最新的英语版本 | 日期 | |||
---|---|---|---|---|---|---|
* | 数据表 | LM25069 Positive Low Voltage Power Limiting Hot Swap Controller 数据表 (Rev. E) | 2013年 3月 28日 | |||
选择指南 | 电源管理指南 2018 (Rev. K) | 2018年 7月 31日 | ||||
选择指南 | 电源管理指南 2018 (Rev. R) | 2018年 6月 25日 | ||||
选择指南 | Hot Swap Selection Tool | 2015年 7月 28日 | ||||
EVM 用户指南 | AN-1947 LM25069 Evaluation Board (Rev. D) | 2013年 5月 6日 | ||||
应用手册 | Output Voltage Clamping Using the LM5069 Hot Swap Controller (Rev. B) | 2013年 5月 6日 |
设计和开发
如需其他信息或资源,请点击以下任一标题进入详情页面查看(如有)。
LM25069-1 Unencrypted PSpice Transient Model Package (Rev. A)
LM25069-2 TINA-TI Transient Input Transient Reference Design
LM25069-2 TINA-TI Transient Power Up Reference Design
LM25069-2 TINA-TI Transient Restart Sequence Reference Design
LM25069-2 Unencrypted PSpice Transient Model Package (Rev. A)
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封装 | 引脚 | CAD 符号、封装和 3D 模型 |
---|---|---|
VSSOP (DGS) | 10 | Ultra Librarian |
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