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MAX14525
Battery Switch with Four Enables

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


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Description
FULL DATA SHEET (PDF, 140kB)
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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.

Key Features   Applications/Uses
  • 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

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

    Diagram
    MAX14525: Typical Application Circuit
    Typical Application Circuit

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


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