TPS2399DGKR vs TPS25944ARVCT
| Part Number |
|
|
| Category | PMIC - Hot Swap Controllers | PMIC - Hot Swap Controllers |
| Manufacturer | Texas Instruments | Texas Instruments |
| Description | IC HOT SWAP CTRLR -48V 8VSSOP | IC PWR MGMT EFUSE 2.7-18V 20WQFN |
| Package | Tape & Reel (TR) | - |
| Series | - | - |
| Type | Hot Swap Controller | Hot Swap Controller |
| Features | Auto Retry, UVLO | Auto Retry, OVP, Thermal Limit |
| Voltage - Supply | -80V ~ -36V | 2.7 V ~ 18 V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 8-TSSOP, 8-MSOP (0.118\", 3.00mm Width) | 20-WFQFN Exposed Pad |
| Supplier Device Package | 8-VSSOP | 20-WQFN (4x3) |
| Current - Supply | 700 µA | 202µA |
| Applications | -48V | General Purpose |
| Current - Output (Max) | - | 5.3A |
| Number of Channels | 1 | 1 |
| Internal Switch(s) | No | Yes |
| Programmable Features | Current Limit, Fault Timeout, Slew Rate | Current Limit, OVP, Slew Rate, UVLO |
-
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.
-
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.
-
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.
-
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.
