MAX4840EXT-G104

MAX4840EXT-G104

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MAX4840EXT-G104
OVERVOLTAGE-PROTECTION IC
No Datasheet
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$0.94

Price update:a months ago
Available in stock: 2350
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Analog Devices Inc./Maxim Integrated

Analog Devices Inc./Maxim Integrated

Maxim Integrated has amalgamated with Analog Devices, imparting an augmented repertoire of superlative mixed-signal and power governance innovations, fostering clientele triumph across diverse sectors. This amalgamation begets a spectrum of resolutions for surmounting the utmost intricate quandaries, spanning from direct current to the expanse of 100 gigahertz, encompassing miniscule nanowatt realms to robust kilowatt domains, spanning the sensor continuum to the ethereal expanse of cloud. Delve deeper into Analog Devices' enriched assemblage on their product dossier.

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MAX4840EXT-G104 Products
The MAX4838–MAX4842 are overvoltage protection ICs that protect low-voltage systems against voltages of up to 28V. If the input voltage exceeds the overvoltage trip level, the MAX4838–MAX4842 turn off the low-cost external n-channel FET(s) to prevent damage to the protected components. An internal charge pump eliminates the need for external capacitors and drives the FET gate for a simple, robust solution. The MAX4838/MAX4839 have a 7.4V overvoltage threshold, and the MAX4840/MAX4841 have a 5.8V overvoltage threshold. The MAX4842 has a 4.7V overvoltage threshold. The MAX4838–MAX4841 have an undervoltage lockout (UVLO) threshold of 3.25V while the MAX4842 has a UVLO of 3.0V. In addition to the single FET configuration, the devices can be configured with back-to-back external FETs to prevent currents from being back-driven into the adapter. On power-up, the device waits for 50ms before driving GATE high. Active-low FLAG is held low for an additional 50ms after GATE goes high before deasserting. The MAX4838/MAX4840/MAX4842 have an open-drain active-low FLAG output, and the MAX4839/MAX4841 have a pushpull FLAG output. The active-low FLAG output asserts immediately to an overvoltage fault. Additional features include a 15kV ESD-protected input (when bypassed with a 1μF capacitor) and a shutdown pin (active-low EN) to turn off the device (MAX4838/MAX4840/MAX4842). All devices are offered in a small 6-pin SC70 package and are specified for operation from -40°C to +85°C.

Feature

  • Overvoltage Protection Up to 28V
  • Preset 7.4V, 5.8V, or 4.7V Overvoltage Trip Level
  • Drive Low-Cost NMOS FET
  • Internal 50ms Startup Delay
  • Internal Charge Pump
  • Undervoltage Lockout
  • 15kV ESD-Protected Input
  • Voltage Fault active-low FLAG Indicator
  • 6-Pin SC70 Package

Applications

  • Cell Phones
  • Digital Still Cameras
  • MP3 Players
  • PDAs and Palmtop Devices

Product Attributes

TYPE DESCRIPTION Select all
Product Status Active
Applications Overvoltage Protection Controller
Current - Supply 140µA
Voltage - Supply 1.2V ~ 28V
Operating Temperature -40°C ~ 85°C (TA)
Mounting Type Surface Mount
Package / Case 6-TSSOP, SC-88, SOT-363
Supplier Device Package SC-70-6
Package Bulk

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$0.94

Price update:a months ago
Available in stock: 2350
Analog Devices Inc./Maxim Integrated

Analog Devices Inc./Maxim Integrated

Maxim Integrated has amalgamated with Analog Devices, imparting an augmented repertoire of superlative mixed-signal and power governance innovations, fostering clientele triumph across diverse sectors. This amalgamation begets a spectrum of resolutions for surmounting the utmost intricate quandaries, spanning from direct current to the expanse of 100 gigahertz, encompassing miniscule nanowatt realms to robust kilowatt domains, spanning the sensor continuum to the ethereal expanse of cloud. Delve deeper into Analog Devices' enriched assemblage on their product dossier.

View All Product from Analog Devices Inc./Maxim Integrated

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