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MAX894L, MAX895L
Dual, Current-Limited, High-Side P-Channel Switches with Thermal Shutdown

Low Resistance P-Channel Switches with Adjustable, Accurate Current Limit Protects Systems and USB


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Description
FULL DATA SHEET (PDF, 364kB)
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The MAX894L/MAX895L smart, dual, low-voltage, P-channel, MOSFET power switches are intended for high-side load-switching applications. These switches operate with inputs from +2.7V to +5.5V, making them ideal for both 3V and 5V systems. Internal current-limiting circuitry protects the input supply against overload. Thermal-overload protection limits power dissipation and junction temperature.

The MAX894L/MAX895L's maximum current limits are 500mA and 250mA, respectively. The current limit through the switches is programmed with resistors from SET A/SET B to ground. When the switches are on, the quiescent supply current is a low 16µA. When the switches are off, the supply current decreases to 0.1µA.

The MAX894L/MAX895L are available in an 8-pin SO package.

Key Features   Applications/Uses
  • +2.7V to +5.5V Input Range
  • Programmable Current Limits
  • Low Supply Current:
    • 16µA IQ at VIN = 3.3V
    • 0.1µA with Switch Off
  • Thermal Shutdown

 
  • Access Bus Slots
  • PCMCIA Slots
  • Portable Equipment

    Key Specifications:   USB Power Switches
    Part Number Number of Switches Max. Load Current (A) RON (typ) (Ω) Fault Indicator Switch Op. Voltage Range (V) Package Smallest Available Package (max w/pins) (mm2) Operating Temp. Range (°C) Price**
    MAX894L  2 0.5 0.12 No 2.7 to 5.5 SOIC(N)/8 31 -40 to +85 $1.99 @ 1k
    MAX895L  0.25 0.25 $1.99 @ 1k
    See All USB Power Switches (28)
    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 prices and delivery, please see the price and availability page or contact an authorized distributor.

    Diagram
    MAX894L, MAX895L: Typical Operating Circuit
    Typical Operating Circuit

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    Document Ref.: 19-1153; Rev 1; 2007-03-13
    This page last modified: 2007-05-31


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