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MAX14575C

MAX14575C

250mA to 2.5A Adjustable Current-Limit Switches

Wide 250mA to 2.5A Current-Limit Range Has Considerable Versatility

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Overview

Description

The MAX14575A/MAX14575AL/MAX14575B/MAX14575C programmable current-limit switches feature internal current limiting to prevent damage to host devices due to faulty load conditions. These current-limit switches feature a low 32mΩ (typ) on-resistance and operate from a +2.3V to +5.5V input-voltage range. The current limit is adjustable from 250mA to 2.5A, making these devices ideal for charging a large load capacitor, as well as for high-current load switching applications.

Each device in the family handles an overcurrent event differently depending on the option selected. The MAX14575A/MAX14575AL feature an autoretry mode; the MAX14575A has active-high EN polarity, while the MAX14575AL has active-low EN polarity. The MAX14575B has latch-off mode, and the MAX14575C features a continuous current-limit mode. Additional safety features include thermal-shutdown protection to prevent overheating and reverse-current blocking to prevent current from being driven back into the source.

The MAX14575A/MAX14575AL/MAX14575B/MAX14575C are available in a small 2mm x 2mm, 8-pin TDFN package and operate over the -40°C to +85°C extended temperature range.
MAX14575A, MAX14575AL, MAX14575B, MAX14575C: Typical Operating Circuit MAX14575A, MAX14575AL, MAX14575B, MAX14575C: Typical Operating Circuit Enlarge+

Key Features

  • Integrated Protection Reduces Board Space and Makes Systems More Robust
    • ±10% Overload Current Limit (500mA to 2.5A)
    • Reverse-Current Protection
    • 1µA (max) Shutdown Reverse Current
    • Short-Circuit Protection
    • Thermal Shutdown Protection
  • Low Power Dissipation Reduces Heat and/or Battery Consumption
    • 130µA (typ) Low Supply Current
    • 32mΩ (typ) Low RON
  • Flexible Part Can Easily Be Reused In Multiple Projects
    • Adjustable Current Limit (250mA to 2500mA)
    • +2.3V to +5.5V Supply Voltage Range

Applications/Uses

  • Data Modem Cards
  • Portable Media Players
  • RF Power Amplifier in Cell Phones
  • SDXC Card Power-Supply Protection
  • USB Ports
  • UTCA/ATCA Platforms

Parametric Specs

Part NumberUSBPower SwitchesCurrent Limit
(mA)		Current Limit
(mA)		Fault IndicatorCurrent Limit Accuracy
(%)		Current Limit Set ByLowest Adj. Setting
(A)		RON
(Ω)		VSUPPLY
(V)		VSUPPLY
(V)		Oper. Temp.
(°C)		Package/PinsBudgetary
Price
minmaxtypminmaxSee Notes
MAX14575A Yes12502500Yes10Resistor0.250.0322.35.5-40 to +85
TDFN/8
$1.97 @1k
MAX14575AL 
TDFN/8
MAX14575B 
TDFN/8
MAX14575C 
TDFN/8
See All Current Limit and USB Power Switches (82)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Design Resources


MAX14575AEVKIT: Evaluation Kit for the MAX14575A, MAX14575AL, MAX14575B, and MAX14575C
MAX14575BEVKIT: Evaluation Kit for the MAX14575A, MAX14575AL, MAX14575B, and MAX14575C
MAX14575CEVKIT: Evaluation Kit for the MAX14575A, MAX14575AL, MAX14575B, and MAX14575C

Quality and Environmental Data

Product Reliability Reports: MAX14575C.pdf 
Lead-Free Package Tin (Sn) Whisker Reports

Quality And Environmental

Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

Quality Management System >
Environmental Management System >

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Reference Designs