PMIC - Hot Swap Controllers
PMIC - Hot Swap Controllers: Precision Power Management for Seamless Integration
Definition:
PMIC - Hot Swap Controllers are specialized integrated circuits (ICs) within the Power Management IC (PMIC) category, designed to safely manage the insertion and removal of electronic components in live (hot-swappable) systems. These controllers prevent voltage spikes, inrush currents, and other electrical disturbances, ensuring smooth power transitions and protecting sensitive circuitry in servers, networking equipment, and industrial applications.
Types of Hot Swap Controllers:
1. Linear Hot Swap Controllers: Use pass transistors to regulate current gradually, ideal for low-voltage boards.
2. FET-Based Hot Swap Controllers: Employ external MOSFETs for higher power handling, common in enterprise hardware.
3. Digital Hot Swap Controllers: Feature programmable current limits and fault diagnostics via I2C/PMBus, suited for smart systems.
4. High-Voltage Controllers: Built for industrial environments (e.g., 48V+ telecom backplanes).
Purchasing Recommendations:
- Current/Voltage Ratings: Match the controller s range to your system s load requirements (e.g., 0-20A, 3.3V-48V).
- Protection Features: Prioritize devices with OVP (Overvoltage Protection), UVLO (Undervoltage Lockout), and thermal shutdown.
- Interface Compatibility: Select digital controllers with PMBus for automated power management in data centers.
- Package & Integration: Opt for QFN or SOIC packages for space-constrained designs; ensure compatibility with external MOSFETs if needed.
Hot Swap Controllers are critical for minimizing downtime in mission-critical systems choose a solution that balances robustness with precision for optimal reliability.
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MAX5955AEEE+
IC HOT SWAP CTRLR GP 16QSOP
UCC2921DTR
IC HOT SWAP CTRLR GP 8SOIC
LTC4251CS6#TRPBF
IC HOT SWAP CTRLR -48V SOT23-6
LTC4350CGN#PBF
IC HOT SWAP CTRLR GP 16SSOP
MAX4273ESE+T
IC HOT SWAP CTRLR GP 16SOIC
LT4220CGN#PBF
IC HOT SWAP CTRLR GP 16SSOP
MAX5915EUI+
IC HOT-SWAP CTRLR DUAL 28-TSSOP
UCC3912PWPTR
IC HOT SWAP CTRLR GP 24HTSSOP
LM5064PMH/NOPB
IC HOT SWAP CTRLR -48V 28HTSSOP
UCC3917N
IC HOT SWAP CTRLR GP 16DIP
LTC4227CGN-1#TRPBF
IC HOT SWAP CTRLR GP 16SSOP
MAX4273EEE+T
IC HOT SWAP CTRLR GP 16QSOP
LT1640AHIS8#PBF
IC HOT SWAP CTRLR -48V 8SOIC
LTC4227IUFD-4#PBF
IC HOT SWAP CTRLR GP 20QFN
UCC3921DTR
IC HOT SWAP CTRLR GP 8SOIC
LTC1643AHIGN#TRPBF
IC HOT SWAP CTR MOTHERBRD 16SSOP
LTC4232IDHC#TRPBF
IC HOT SWAP CTRLR GP 16DFN
ADM1171-2AUJZ-RL7
IC HOT SWAP CTRLR GP TSOT23-8
LTC4230IGN#TRPBF
IC HOT SWAP CTRLR GP 20SSOP
LM5064PMHX/NOPB
IC HOT SWAP CTRLR -48V 28HTSSOP