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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Active: In Production.

Description

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.
 

Data Sheet

Download this datasheet in PDF formatDownload Rev 1 (PDF, 364kB)
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Key Features

  • +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
 

Applications/Uses

  • Access Bus Slots
  • PCMCIA Slots
  • Portable Equipment
   

Key Specifications:

Current Limit and USB Power Switches
Part Number Power Switches Current Limit
(mA)
Current Limit
(mA)
Fault Indicator Current Limit Accuracy
(%)
Current Limit Set By Lowest Adj. Setting
(A)
RON
(Ω)
VSUPPLY
(V)
VSUPPLY
(V)
Oper. Temp.
(°C)
Package/Pins Budgetary Price
typ min max See Notes
MAX894L  2 500 500 No 15 Resistor 0.1 0.12 2.7 5.5 -40 to +85
SOIC(N)/8
$2.20 @1k
MAX895L  250 250 0.05 0.25
SOIC(N)/8
$2.20 @1k
See All Current Limit and USB Power Switches (77)
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 prices and delivery, please see the price and availability page or contact an authorized distributor.


Diagram

MAX894L, MAX895L: Typical Operating Circuit
Typical Operating Circuit

Notes and Comments

Dual: 150mΩ/0.5A (MAX894L)
Dual: 300mΩ/0.25A (MAX895L)

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Information Index

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




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