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Battery Manager

Product Details

Key Features

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Parametric specs for Battery Backup Circuits
ICC (µA) (max) 3330
Oper. Temp. (°C) -55 to +125
-40 to +85
0 to +70
Package/Pins LCC/20
PDIP/16
SOIC (W)/16
Budgetary
Price (See Notes)
4.57
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Simplified Block Diagram

Technical Docs

Data Sheet Battery Manager Dec 23, 2014

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.

Parameters

Parametric specs for Battery Backup Circuits
ICC (µA) (max) 3330
Oper. Temp. (°C) -55 to +125
-40 to +85
0 to +70
Package/Pins LCC/20
PDIP/16
SOIC (W)/16
Budgetary
Price (See Notes)
4.57

Key Features

  • Switches to Backup Battery if Power Fails
  • Consumes Less than 100nA of Battery Current
  • Power-Fail Output Signals Primary Power-Supply Loss
  • Battery Monitor Indicates Low Battery
  • Battery Can Be Disconnected to Prevent Discharge During Shipping
  • Battery Automatically Reconnected when VCC is Applied
  • Pin-Compatible with the DS1259
  • Supply Current Three Times Lower than DS1259
  • Available in Extended-Industrial and Military Temperature Ranges

Applications/Uses

  • Battery Backup for CMOS RAM
  • Computers
  • Controllers
  • Uninterruptible Power Supplies

Description

The MAX1259 battery manager provides backup-battery switching for CMOS RAM, microprocessors, or other low-power logic ICs. It automatically switches to the backup battery when the primary power supply is interrupted. Low-loss switches guarantee an input-to-output differential of only 200mV while supplying 250mA from the primary power supply or 15mA from the battery.

Battery discharge during shipping does not occur in the MAX1259, since the backup battery can be disconnected by strobing the RST input.

A battery-fail output signal indicates when the backup battery is below +2V, and a power-fail output signal indicates when the primary power supply is low. The MAX1259 monitors the backup battery, warns of impending power failures, and switches the memory to the battery when failures occur. The MAX1259 is pin-compatible with the DS1259, but consumes three times less supply current. Commercial, extended, and military temperature range devices are available.

Simplified Block Diagram

MAX1259: Typical Application Circuit MAX1259: Typical Application Circuit Zoom icon

Technical Docs

Data Sheet Battery Manager Dec 23, 2014

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.