UCC2912DP ,Programmable Hot Swap Switch Power Managerelectrical characteristics, these specifications apply for T = −40°C to 85°C for the UCC2912;AT = 0 ..
UCC2912DP ,Programmable Hot Swap Switch Power Managermaximum ratings over operating free-air temperature (unless otherwise noted)VIN . . . . . . . . . . ..
UCC2912PWP ,Programmable Hot Swap Switch Power Managerelectrical characteristics, these specifications apply for T = −40°C to 85°C for the UCC2912;AT = 0 ..
UCC2913 ,Negative Floating Single, Hot-Swap IC Industrial Temp. RangeELECTRICAL CHARACTERISTICS T = –40°C to 85°C for UCC2913, T = 0°C to 70°C for UCC3913, T = T I = ..
UCC2913 ,Negative Floating Single, Hot-Swap IC Industrial Temp. RangeSLUS274A – JANUARY 1999 – REVISED APRIL 2003
UCC2913D ,Negative Floating Single, Hot-Swap IC Industrial Temp. Rangemaximum ratings” may cause permanent damage to the device. These are stress ratings only,and functi ..
UPA1870BGR-9JG ,N-CHANNEL MOS FIELD EFFECT TRANSISTOR FOR SWITCHINGDATA SHEETMOS FIELD EFFECT TRANSISTORµ PA1870BN-CHANNEL MOS FIELD EFFECT TRANSISTOR FOR SWITCHING ..
UPA1870BGR-9JG-E1 ,N-channel enhancement type MOS FETfeatures a low on-state resistance and The 1 :Drain11.2 MAX.2, 3 :Source1excellent switchin ..
UPA1870GR-9JG-E1 ,N-channel enhancement type MOS FETELECTRICAL CHARACTERISTICS (TA = 25°C)CHARACTERISTICS SYMBOL TEST CONDITIONS MIN. TYP. MAX. UNITZer ..
UPA1871GR-9JG-E1 ,N-channel enhancement type MOS FETFEATURES3°–3°0.5• Can be driven by a 2.5-V power source0.1±0.05+0.150.6–0.1• Low on-state resistanc ..
UPA1872GR-9JG , N-CHANNEL MOS FIELD EFFECT TRANSISTOR FOR SWITCHING
UPA1872GR-9JG-E1 ,N-channel enhancement type MOS FETFEATURES+5°3°–3°• 2.5 V drive available0.50.1±0.05+0.15• Low on-state resistance0.6–0.114RDS(on)1 = ..
UCC2912DP-UCC2912PWP
Programmable Hot Swap Switch Power Manager
Electronic Circuit Breaker Function 1µA ICC When Disabled Programmable On-Time Programmable Start Delay Fixed 3% Duty CycleAbove the Programmed Fault Level or to a
Full 4 A Power SOIC, Low-Thermal Resistance
Packaging
descriptionThe UCC3912 family of hot swap power managers provides complete power management, hot swap capability,
and circuit breaker functions. The only component required to operate the device, other than supply bypassing,
is the fault timing capacitor, CT . 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 average output
power.
The internal 4-bit DAC allows programming of the fault level current from 0 A to 3 A with 0.25-A resolution. The
IMAX control pin sets the maximum sourcing current to 1 A above the fault level when driven low, and to a full
4 A when driven high for applications which require fast output capacitor charging.
When the output current is below the fault level, the output MOSFET is switched on with a nominal on resistance
of 0.15 Ω. When the output current exceeds the fault level, but is less than the maximum sourcing level, the
output remains switched on, but the fault timer starts charging CT . Once CT charges to a preset threshold, the
switch is turned off, and remains off for 30 times the programmed fault time. When the output current reaches
the maximum sourcing level, the MOSFET transitions from a switch to a constant current source. (continued)
block diagramUDG-99146B0B2 SHTDWN
1.5 V
FAULTIMAX
GND HEATSINK
GND PINS
OVERCURRENT
COMPARATOR VIN
VIN
VOUT
VOUT
FET
4 BIT DAC
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
