Overview
The LM5069MM-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 live system backplanes or other hot power sources. It ensures safe and controlled power management, limiting in-rush current and preventing system voltage droop and transients. The LM5069MM-2/NOPB is available in a 10-pin VSSOP package and offers various programmable features to customize its operation according to specific application needs.
Key Specifications
| Parameter | Value |
|---|---|
| Package | 10-Pin VSSOP (DGS) |
| Operating Temperature Range (°C) | -40 to 125 |
| Max Supply Voltage (V) | 80 |
| Min Supply Voltage (V) | 9 |
| Max Output Voltage (V) | 101.25 |
| Operating Supply Current (mA) | 1.3 |
| Mount | Surface Mount |
| Lead Free | Yes |
| RoHS Compliant | Yes |
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 LM5069MM-2/NOPB is suitable for various applications requiring hot swap functionality, such as:
- Telecommunication systems
- Data centers and server systems
- Industrial control systems
- Medical equipment
- Any system requiring safe and controlled insertion and removal of circuit cards from live backplanes.
Q & A
- What is the primary function of the LM5069MM-2/NOPB?
The primary function is to provide intelligent control of power supply connections during the insertion and removal of circuit cards from live system backplanes or other hot power sources. - What is the operating temperature range of the LM5069MM-2/NOPB?
The operating temperature range is -40°C to 125°C. - What is the maximum supply voltage for the LM5069MM-2/NOPB?
The maximum supply voltage is 80 V. - Does the LM5069MM-2/NOPB have adjustable current limit and power dissipation features?
Yes, it has programmable maximum power dissipation in the external pass device and an adjustable current limit. - What types of fault handling does the LM5069MM-2/NOPB offer?
The LM5069MM-2/NOPB is available in latched fault (LM5069-1) and automatic restart (LM5069-2) versions. - Is the LM5069MM-2/NOPB RoHS compliant?
Yes, it is RoHS compliant. - What is the purpose of the POWER GOOD output in the LM5069MM-2/NOPB?
The POWER GOOD output indicates when the output voltage is within 1.25 V of the input voltage. - Can the undervoltage and overvoltage lockout levels be adjusted?
Yes, the input undervoltage and overvoltage lockout levels and hysteresis are programmable. - What is the package type and pin count of the LM5069MM-2/NOPB?
The package type is 10-Pin VSSOP (DGS). - Is the LM5069MM-2/NOPB suitable for surface mount applications?
Yes, it is designed for surface mount applications.
