(China (Mainland))
Product Summary
The UCC3918DPTR low on-resistance hot swap power manager provides complete power management, hot swap capability, and circuit breaker functions. The only components needed to operate the UCC3918DPTR, other than supply bypassing, are a timing capacitor, and two programming resistors. All control and housekeeping functions are integrated, and externally programmable. These include the fault current level, maximum output sourcing current, maximum fault time, and startup delay. In the event of a constant fault, the internal fixed 3% duty cycle ratio limits the average output power. The IFAULT pin allows linear programming of the fault level current from 0 A to 4 A.
Parametrics
UCC3918DPTR absolute maximum ratings: (1)Input Voltage: 8 V; (2)SOIC Power dissipation: 2.5 W; (3)Fault output sink current: 50 mA; (4)Fault output voltage : VIN; (5)Output Current (dc): Internally Limited; (6)Input Voltage SHTDWN, IFAULT, IMAX: –0.3 V to VIN; (7)Storage temperature range, Tstg: –65℃ to 150℃; (8)Operating virtual junction temperature, TJ: –55℃ to 150℃; (9)Lead temperature (soldering, 10 seconds): 300℃.
Features
UCC3918DPTR features: (1)Integrated 0.075-Ω Power MOSFET; (2)3 V to 6 V Operation; (3)External Analog Control of Fault Current from 0 A to 4 A; (4)Independent Analog Control of Current Limit Up to 5 A; (5)Fast Overload Protection; (6)Unidirectional Switch; (7)Minimal External Components; (8)1-μA ICC When Disabled; (9)Programmable On Time; (10)Programmable Start Delay; (11)Fixed 3% Duty Cycle.
Diagrams
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 UCC3918DPTR |
Texas Instruments |
Hot Swap & Power Distribution 0-4A 3-6V Lo RDSON Sngl Hi-Side MOSFET |
Data Sheet |
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UCC3918DPTRG4 |
Texas Instruments |
Hot Swap & Power Distribution 0-4A 3-6V Lo RDSON Sngl Hi-Side MOSFET |
Data Sheet |
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