TPS2399DGKR vs LM5067MWX-1/NOPB
| Part Number |
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| Category | PMIC - Hot Swap Controllers | PMIC - Hot Swap Controllers |
| Manufacturer | Texas Instruments | National Semiconductor |
| Description | IC HOT SWAP CTRLR -48V 8VSSOP | LM5067 NEGATIVE HOT SWAP / INRUS |
| Package | Tape & Reel (TR) | Bulk |
| Series | - | - |
| Type | Hot Swap Controller | Hot Swap Controller |
| Features | Auto Retry, UVLO | Latched Fault |
| Voltage - Supply | -80V ~ -36V | -80V ~ -9V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 125°C |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 8-TSSOP, 8-MSOP (0.118\", 3.00mm Width) | 14-SOIC (0.295\", 7.50mm Width) |
| Supplier Device Package | 8-VSSOP | 14-SOIC |
| Current - Supply | 700 µA | 2 mA |
| Applications | -48V | -48V |
| Current - Output (Max) | - | - |
| Number of Channels | 1 | 1 |
| Internal Switch(s) | No | No |
| Programmable Features | Current Limit, Fault Timeout, Slew Rate | Circuit Breaker, Current Limit, Fault Timeout, OVP, UVLO |
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1. How does a PMIC hot-swap controller work?
A hot-swap controller protects system components by limiting inrush current during insertion. It monitors parameters such as current and voltage and triggers protection mechanisms such as overcurrent protection or disconnection of power when they exceed the safe range.
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2. How to choose a suitable hot-swap controller?
When selecting a hot-swap controller, you should consider the system's current and voltage range, protection mechanisms (such as overcurrent protection and thermal shutdown), response time, power dissipation, and other required functions.
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3. How do hot-swap controllers prevent inrush current?
Through internal current limiting circuits, hot-swap controllers control the rate of current increase at the moment of insertion to avoid damage to the system due to instantaneous inrush current. At the same time, the settable soft start function helps to load the voltage smoothly.
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4. How to test the performance of hot-swap controllers?
Performance tests can include plug-in tests, current limiting tests, protection function verification, and current surge measurements. Using an oscilloscope to observe the current and voltage changes at the moment of plug-in is an effective way to verify its performance.
