MAX6791

Features: ` Low 68A Quiescent Current` Wide 5V to 72V Supply Voltage Range` Output Current Single Output Up to 300mA Dual Outputs Up to 150mA per Output` Low Dropout Voltage 420mV (typ) at 100mA (Single) 840mV (typ) at 100mA (Dual)` Fixed Output-Voltage Options: 5V, 3.3V, 2.5V, 1.8V, or Adjustable...

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SeekIC No. : 004411891 Detail

MAX6791: Features: ` Low 68A Quiescent Current` Wide 5V to 72V Supply Voltage Range` Output Current Single Output Up to 300mA Dual Outputs Up to 150mA per Output` Low Dropout Voltage 420mV (typ) at 100mA (Si...

floor Price/Ceiling Price

Part Number:
MAX6791
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/27

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Product Details

Description



Features:

` Low 68A Quiescent Current
` Wide 5V to 72V Supply Voltage Range
` Output Current
    Single Output Up to 300mA
    Dual Outputs Up to 150mA per Output
` Low Dropout Voltage
    420mV (typ) at 100mA (Single)
    840mV (typ) at 100mA (Dual)
` Fixed Output-Voltage Options: 5V, 3.3V, 2.5V,
    1.8V, or Adjustable Output (from 1.8V to 11V)
` ENABLE and HOLD Functionality
` RESET Output: Open Drain or Push-Pull
` Internally Fixed (35s, 3.125ms, 12.5ms, 50ms, or
    200ms) or Capacitor-Adjustable Reset Timeout
    Periods
` Internally Fixed or Capacitor-Adjustable
    Watchdog Timeout Periods
` Windowed (Minimum/Maximum) Watchdog Timer
    Options (MAX6791/MAX6792)
` Watchdog Disable Feature
` Thermal, Short-Circuit, and Output Overvoltage
    Protection
` Fully Specified from -40°C to +125°C
` Small, Thermally Enhanced, 5mm x 5mm TQFN



Application

·Automotive


Specifications

(All pins referenced to GND, unless otherwise noted.)
IN to GND ...............................................................-0.3V to +80V
ENABLE, ENABLE1, ENABLE2, PFI,
GATEP to GND...................................................-0.3V to (IN + 0.3V)
   GATEP to IN ...........................................................-12V to +0.3V
OUT, OUT1, OUT2, PFORESET (open-drain versions),
   CSRT, CSWT ...........................................................-0.3V to +12V
HOLDRESET (push-pull versions), WDI, WDS0, WDS1,
   WD-DIS, SET, SET1............................-0.3V to (OUT/OUT1 + 0.3V)
OUT, OUT1, OUT2 Short Circuit
    to GND.......................................................................Continuous
Maximum Current (all pins except IN and OUT_).....................50mA
Continuous Power Dissipation (TA = +70°C)
    20-Pin TQFN (derate 33.3mW/°C above +70°C) .......2666.7mW
Operating Temperature Range (TA) .....................-40°C to +125°C
Junction Temperature (TJ) ......................................................150°C
Storage Temperature Range ................................-65°C to +150°C
Lead Temperature (soldering, 10s) ......................................+300°C



Description

The MAX6791MAX6796 ultra-low-quiescent-current, single-/dual-output linear regulators are ideal for automotive applications. The devices offer a wide 5V to 72V operating input range, allowing them to withstand automotive load-dump conditions while consuming only 68A. The MAX6791MAX6794 are dual-output regulators capable of supplying up to 150mA per output. The MAX6795/MAX6796 offer a single output capable of delivering up to 300mA. These devices offer standard output-voltage options (5V, 3.3V, 2.5V, or 1.8V) and can be adjusted to any voltage from 1.8V to 11V. The MAX6791MAX6794 also offer a fixed 5V output.

MAX6791 feature a push-pull or open-drain, active-low RESET output with a fixed output reset threshold that is 92.5%/87.5% of the regulator output OUT/OUT1. The reset output asserts low when OUT/OUT1 drops below the reset threshold and remains low for the fixed or capacitor-adjustable reset timeout period after OUT/OUT1 exceeds the reset threshold.

The MAX6791MAX6796 provide a watchdog input that monitors a pulse train from the microprocessor (P) and generates reset pulses if the watchdog input remains high or low for a duration longer than the watchdog timeout period. All devices are available with either a fixed watchdog timeout period of 280ms (min) or a period adjustable with an external capacitor. The MAX6791/MAX6792 feature a windowed watchdog timeout period with selectable window ratio. The watchdog feature can be disabled.

The MAX6791MAX6794 provide dual enable inputs (ENABLE1 and ENABLE2) that control each regulator independently. The single-output MAX6795/MAX6796 feature one enable input (ENABLE).

MAX6791 include a hold input (HOLD) that aids the implementation of a self-holding circuit without requiring external components. Once the regulator is enabled, setting HOLD low forces the regulator to remain on even if ENABLE/ENABLE1 is subsequently set low. Releasing HOLD shuts down the regulator.

The MAX6791MAX6796 are available in a small, thermally enhanced TQFN package. The 5mm x 5mm package dissipates up to 2.7W, supporting continuous regulator operation during high ambient temperatures, high battery voltage, and high load-current conditions.

The MAX6791MAX6796 are specified for a -40°C to +125°C operating temperature range.




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