Protected Power Switches | FPF2109

Full Function Load Switch with Reverse Current Blocking

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Overview

The FPF2108-FPF2110 is a series of load switches which provides full protection to systems and loads which may encounter large current conditions. This devices contain a 0.125W current-limited P-channel MOSFET which can operate over an input voltage range of 1.8-5.5V. Internally, reverse current blocking prevents current from flowing when the MOSFET is off and the output voltage is higher than the input voltage. Switch control is by a logic input (ON) capable of interfacing directly with low voltage control signals. Each part contains thermal shutdown protection which shuts off the switch to prevent damage to the part when a continuous over-current condition causes excessive heating. When the switch current reaches the current limit, the part operates in a constant-current mode to prohibit excessive currents from causing damage. For the FPF2108, if the constant current condition still persists after 10ms, the part will shut off the switch and pull the fault signal pin (FLAGB) low. The switch will remain off until the ON pin is cycled. For the FPF2109 and FPF2110, a current limit condition will immediately pull the fault signal pin low and the part will remain in the constant-current mode until the switch current falls below the current limit. The minimum current limit is 200mA for the FPF2109 while that for the FPF2108 and FPF2110 is 400mA. These parts are available in a space-saving 5 pin SOT23 package

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  • Media Tablets

  • 1.8 to 5.5V Input Voltage Range
  • Controlled Turn-On
  • 200mA Current Limit Options
  • Undervoltage Lockout
  • Thermal Shutdown
  • <2uA Shutdown Current
  • Fast Current limit Response Time
  • 3us to Moderate Over Currents
  • 20ns to Hard Shorts
  • Reverse Current Blocking
  • Fault Blanking
  • RoHS Compliant

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MSL Temp (°C)

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ON Target

Over Current - Shutdown (Y/N)

Over Current - Current Source (Y/N)

Current Limit (FIXED/ADJ/NO)

Over Voltage Protection (Y/N)

Reverse Current Blocking (Y/N)

FAULT Signal (Y/N)

PGOOD (Y/N)

UVLO (Y/N)

Rds(on) Typ (mΩ)

Max Current (A)

Output Discharge (Y/N)

IMON Output (Y/N)

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Vin Max (V)

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FPF2109

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Active

CAD Model

Pb

A

H

P

SOT-23-5

527AH

1

260

REEL

3000

N

N

Y

NA

N

Y

Y

N

Y

125

0.2

N

N

N

1.8

5.5

95

N

1:1

IntelliMAX

$0.4357

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Reliability Data

Die Related Summary Data

Device: FPF2109

Equivalent to wafer fab process: 36

Product Technology

Product Technology

Equivalent Device-Hours

MTBF/MTTF in Hours

FITS

36

0

630555494

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Re-calculate Data

Data is based on the following assumptions.

Note: The temperature and confidence level may be adjusted to your requirements.

Disclaimer: A reliability FIT rate calculated using this tool shall not be used for any functional safety purpose. In case a raw FIT rate needs to be estimated for a component which is targeted to be used in a safety critical application (i.e. compliant to ISO 26262 standard) it should be calculated according to generic safety standards (IEC62380, IEC61709, SN29500, FIDES, etc.)

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