SC4150HIS-4TRT vs TPS25944ARVCT
| Part Number |
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| Category | PMIC - Hot Swap Controllers | PMIC - Hot Swap Controllers |
| Manufacturer | Semtech Corporation | Texas Instruments |
| Description | IC HOT SWAP CTRLR -48V 8SO | IC PWR MGMT EFUSE 2.7-18V 20WQFN |
| Package | Tape & Reel (TR) | - |
| Series | - | - |
| Type | Hot Swap Controller | Hot Swap Controller |
| Features | Auto Retry, Fault Timeout | Auto Retry, OVP, Thermal Limit |
| Voltage - Supply | 10V ~ 80V | 2.7 V ~ 18 V |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 8-SOIC (0.154\", 3.90mm Width) | 20-WFQFN Exposed Pad |
| Supplier Device Package | 8-SO | 20-WQFN (4x3) |
| Current - Supply | 4 mA | 202µA |
| Applications | -48V | General Purpose |
| Current - Output (Max) | - | 5.3A |
| Number of Channels | 1 | 1 |
| Internal Switch(s) | No | Yes |
| Programmable Features | OVP, Slew Rate, UVLO | Current Limit, OVP, Slew Rate, UVLO |
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1. What is a PMIC hot-swap controller?
A hot-swap controller is a power management integrated circuit that allows circuit boards or modules to be safely plugged and unplugged while the device is running without causing damage to the device itself or the power system.
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2. 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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3. 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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4. 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.
