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MAX16141AAAA/VY+ Analog Devices Inc. PMIC - OR Controllers, Ideal Diodes image
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Analog Devices Inc. MAX16141AAAA/VY+

Manufacturer
Analog Devices Inc.
Mfr. Part #
MAX16141AAAA/VY+
WLX Part #
A22507003842
Package
16-WQFN Exposed Pad
Datasheet
MAX16141AAAA/VY+ Datasheet (PDF)
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MAX16141AAAA/VY+ Parameter Description

The MAX16141/MAX16141A, ideal diode controllers, provide system protection against a variety of system faults, such as reverse current, reverse voltage, overcurrent, input overvoltage/undervoltage, and overtemperature conditions. The wide operating voltage range of 3.5V to 36V, combined with 5µA (typ) of shutdown current, make the MAX16141/ MAX16141A ideal for automotive applications. An integrated charge pump drives the gate of the back-to-back external nFETs 9V above the source connection, minimizing power loss between the source and the load.

A fast-acting comparator allows the MAX16141/MAX16141A to block reverse-current flow within 1µs (max) of the input falling below the output voltage. An external current-sense resistor between RS and OUT provides overload monitoring capability. Two input pins, OVSET and UVSET, provide set points to protect against input overvoltage and undervoltage events using a simple resistive-divider.

During startup, the MAX16141/MAX16141A monitor the voltage drop across the external nFETs (VIN - VOUT) and the load current for overcurrent fault to ensure VOUT is greater than 0.9 x VIN. Once the startup event is complete, the MAX16141/MAX16141A are ready to protect against systems faults. During normal operation, some systems experience brownouts or short interruptions of power. To ensure smooth system recovery from these interruptions, the MAX16141/MAX16141A include a secondary power input (VCC) to keep critical circuits alive. When the main input power recovers, the MAX16141/MAX16141A enable the gate in fast mode (70µs, typ) to charge the output capacitor.

Both devices feature a low-power mode that is enabled with a logic input. In low-power mode the devices allow limited current flow from source to the load. For the MAX16141, the low power mode is enabled using an active low logic input, active-low SLEEP. For the


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