MAX1614

High-Side, n-Channel MOSFET Switch Driver

Industry's Lowest Supply Current High-Side n-Channel MOSFET Driver


Description

The MAX1614 drives high-side, n-channel power MOSFETs to provide battery power-switching functions in portable equipment. The n-channel power MOSFETs typically have one-third the on-resistance of p-channel MOSFETs of similar size and cost. An internal micropower regulator and charge pump generate the high-side drive output voltage, while requiring no external components.

The MAX1614 also features a 1.5%-accurate low-battery comparator that can be used to indicate a low-battery condition, provide an early power-fail warning to the system microprocessor, or disconnect the battery from the load, preventing deep discharge and battery damage. An internal latch allows for pushbutton on/off control with very low current consumption. Off-mode current consumption is only 6µA while normal operation requires less than 25µA. The MAX1614 is available in the space-saving µMAX® package that occupies about 60% less space than a standard 8-pin SO.
MAX1614: Typical Operating Circuit MAX1614: Typical Operating Circuit Enlarge+

Key Features

  • Internal On/Off Latch
  • High-Side, n-Channel Power MOSFET Drive
  • 25µA (max) Quiescent Current
  • 6µA (max) Off Current
  • Requires No External Components
  • 1.5%-Accurate Low-Battery Detector
  • Space-Saving µMAX Package
  • 5V to 26V Input Voltage Range
  • Drives Single or Back-to-Back MOSFETs
  • Controlled Turn-On for Low Inrush Current

Applications/Uses

  • Battery Packs
  • Handheld Instruments (PDAs, Palmtops)
  • Notebook Computers
  • Portable Equipment
Part Number No. of Drivers Logic Polarity Config. VSUPPLY
(V)
Oper. Temp.
(°C)
Budgetary
Price
See Notes
MAX1614  1
Inverting
Noninverting
High-Side N Drive 5 to 26
-40 to +85
0 to +70
$2.20 @1k
See All MOSFET Drivers (35)
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.

Technical Documents

Tutorial 5133 Power-Supply Solutions for Altera FPGAs
Tutorial 5132 Power-Supply Solutions for Xilinx FPGAs
App Note 3472 Series Protection for Power-Line Transients
App Note 2012 MOSFET Driver Is Reverse-Battery Protected
Reference Schematic 240 Overcurrent Monitor Operates up to 26V

Quality and Environmental Data

Product Reliability Reports: MAX1614.pdf 
Lead-Free Package Tin (Sn) Whisker Reports
 

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Type ID Title
Reference Circuit240Overcurrent Monitor Operates up to 26V