Overview
The LM5069MMX-1/NOPB, produced by Texas Instruments, is a positive hot swap controller 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. This controller ensures safe and controlled power management, limiting system voltage droop and transients during these operations.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | 10-TFSOP, 10-MSOP | - |
| Operating Temperature Range | -40 to 125 | °C |
| Supply Voltage Range | 9 to 80 | V |
| Current - Supply | 1.3 | mA |
| Mounting Type | Surface Mount | - |
| Number of Channels | 1 | - |
| Internal Switch(s) | No | - |
| POWER GOOD Output | Active high open drain | - |
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
- Available in latched fault and automatic restart versions
Applications
The LM5069MMX-1/NOPB is suitable for various applications, including:
- Server backplane systems
- Solid-state circuit breaker systems
- Industrial systems, such as 24-V and 48-V systems
- General-purpose hot swap and in-rush current control
Q & A
- What is the primary function of the LM5069MMX-1/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 voltage range of the LM5069MMX-1/NOPB?
The operating voltage range is from 9 V to 80 V.
- What types of packages are available for the LM5069MMX-1/NOPB?
The component is available in 10-TFSOP and 10-MSOP packages.
- What is the purpose of the POWER GOOD output?
The POWER GOOD output indicates when the output voltage is within 1.25 V of the input voltage.
- Can the current limit and power dissipation be programmed?
- What are the available versions of the LM5069MMX-1/NOPB in terms of fault handling?
The LM5069MMX-1/NOPB is available in latched fault and automatic restart versions.
- How does the initial insertion timer function?
The initial insertion timer allows ringing and transients to subside after system connection.
- What is the purpose of the adjustable undervoltage and overvoltage lockout?
The adjustable undervoltage lockout (UVLO) and overvoltage lockout (OVLO) with hysteresis help in protecting the system from voltage anomalies.
- What is the operating temperature range of the LM5069MMX-1/NOPB?
The operating temperature range is from -40°C to 125°C.
- Is the LM5069MMX-1/NOPB suitable for industrial applications?
