Overview
The LM5069MMX-2/NOPB is a positive hot swap controller produced by Texas Instruments. This component is designed to provide intelligent control of power supply connections during the insertion and removal of circuit cards from a live system backplane or other hot power sources. It ensures safe and reliable operation by managing in-rush current, voltage transients, and overcurrent events, making it an essential component in high-reliability power systems.
Key Specifications
| Specification | Value |
|---|---|
| Package Type | 10-Pin VSSOP (DGS) |
| Operating Temperature Range (°C) | -40 to 125 |
| Operating Voltage Range | 9 V to 80 V |
| Package Quantity | Carrier 3,500 (LARGE T&R) |
Key Features
- Wide operating range: 9 V to 80 V
- 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 overcurrent events
- Internal high side charge pump and gate driver for external N-channel MOSFET
- Adjustable undervoltage lockout (UVLO) and hysteresis
- Adjustable overvoltage 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 (LM5069-1) and automatic restart (LM5069-2) versions
Applications
The LM5069MMX-2/NOPB is suitable for various high-reliability power systems, including but not limited to:
- Telecommunication systems
- Data centers and server racks
- Industrial control systems
- Automotive systems requiring high voltage and current management
- Medical equipment and other critical power supply applications
Q & A
- What is the primary function of the LM5069MMX-2/NOPB?
The primary function is to provide intelligent control of power supply connections during insertion and removal of circuit cards from live power sources. - What is the operating voltage range of the LM5069MMX-2/NOPB?
The operating voltage range is from 9 V to 80 V. - What type of package does the LM5069MMX-2/NOPB come in?
The component comes in a 10-Pin VSSOP (DGS) package. - What is the operating temperature range of the LM5069MMX-2/NOPB?
The operating temperature range is from -40°C to 125°C. - Does the LM5069MMX-2/NOPB have adjustable current limit and power dissipation?
Yes, the current limit and power dissipation in the external series pass N-Channel MOSFET are programmable. - What is the function of the POWER GOOD output?
The POWER GOOD output indicates when the output voltage is within 1.25 V of the input voltage. - Are there different versions of the LM5069 available?
Yes, the LM5069 is available in latched fault (LM5069-1) and automatic restart (LM5069-2) versions. - What is the purpose of the initial insertion timer?
The initial insertion timer allows ringing and transients to subside after system connection. - Can the fault timer be programmed?
Yes, the fault timer is programmable to avoid nuisance trips. - What is the role of the internal high side charge pump and gate driver?
The internal high side charge pump and gate driver are for the external N-channel MOSFET.
