MAX14525

Battery Switch with Four Enables

Simplifies Li-Ion Battery Disconnect, Accommodates Up to Four Unique Control Inputs

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Status Explanations for product status codes

Active: In Production.

Description

The MAX14525 features a low RON 35mΩ (typ) load switch with four unique enable inputs. The MAX14525 is ideal for disconnecting the lithium-ion (Li+) battery from the loads in portable devices such as cell phones. The MAX14525 operates from a +2.2V to +5.5V supply voltage.

The MAX14525 features an extremely low 0.8µA (typ) quiescent supply current to maximize battery life in portable devices. It is enabled from four possible inputs: external charger connection capable of high voltage up to +28V, travel adapter (TA), on key (ON_K), factory mode enable (JIG), and switch enable (S_EN). The S_EN input is internally ANDed with the switched battery connection (IN).

The MAX14525 is available in a small 8-pin, 2mm x 2mm TDFN package and operates over the -40°C to +85°C extended temperature range.
 

Data Sheet

Download this datasheet in PDF formatDownload Rev 0 (PDF, 140kB)
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Key Features

  • Low 35mΩ (typ) RON Load Switch
  • Ultra Low, 0.8µA (typ) Supply Current
  • Four Enable Inputs:
    • TA: +28V (max) Capable
    • ON_K: Accurate +3V Trigger Enable
    • JIG: Factory Mode Enable
    • S_EN: Logically ANDed with IN
  • Space-Saving 8-Pin, 2mm x 2mm TDFN Package
  • Controlled Turn-On to Limit dI/dt Pulses Due to Lead Inductance
 

Applications/Uses

  • Cell Phones
  • Digital Cameras
  • GPS
  • PDAs
  • UMPC Computers
   

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 RON
(Ω)
VSUPPLY
(V)
VSUPPLY
(V)
Oper. Temp.
(°C)
Package/Pins Budgetary Price
typ min max See Notes
MAX14525  1 5000 5000 No 10 Preset 0.035 2.2 5.5 -40 to +85
TDFN-EP/8
$1.48 @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

MAX14525: Typical Application Circuit
Typical Application Circuit

More Information

Topmark Coding MAX14525
New Product Press Release 2009-03-25 ]

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Document Ref.: 19-4356 Rev 0; 2008-11-20
This page last modified: 2009-07-08




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