ADP2291ARMZ-R7 Linear Battery Chargers by Analog Devices

Semiconductors - ICs
> Power Management ICs - PMIC
> Battery Management
> Battery Charger ICs
Status: Production
Series: ADP2291
RoHS: Compliant
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The ADP2291 is a constant-current/constant-voltage linear charger for a single cell lithium ion battery, requiring just a few components to provide a simple and safe charging system that operates from a wide 4.5 V to 12 V input voltage range. It features an internally controlled, multistep charging cycle that improves battery life. An external, low cost, PNP provides the charging current to the battery and an external resistor sets the maximum charge current. A small external capacitor programs the maximum charge time. The controller includes an LED driver to indicate the battery charging status. Safety features include charging stop mode for battery faults, output overshoot protection, and thermal shutdown. The ADP2291 also features automatic reverse isolation, which does not require an additional blocking diode. The multistep charge cycle optimizes the battery charging time in a safe manner. It features a trickle charge mode for a deeply discharged cell and a fast charging mode with a maximum current of 1.5 A. The ADP2291 controls the end of charge with a 4.2 V output voltage that is 1% accurate over line and temperature. It automatically recharges the battery if the cell voltage drops. When the input supply is removed, the part enters a low current state and reduces the current drawn from the battery to below 1 µA. The ADP2291 is available in both a small, 8-pin MSOP package and a 3 × 3 mm LFCSP package that is ideally suited for small, portable

Where to Buy

Prices starting from US$2.21

Distributor Stock
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Newark Electronics
from US$3.01
1,317
in stock
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element14
from US$3.50
1,317
in stock
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Farnell
from US$3.17
1,317
in stock
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Analog Devices
from US$2.39
453
in stock
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Rochester Electronics
from US$2.21
15
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Features

Simple, Safe Linear Charger for Single Cell Lithium Battery
4.5 V to 12 V Input Voltage Range
Adjustable Charging Current up to 1.5 A
Low Cost PNP External Pass Element
Automatic Reverse Isolation with No External Blocking Diode
Output Overshoot Protection
Deep Discharge Precharge Mode
Thermal Shutdown
Automatic Recharge
Programmable Termination Timer
LED Charging Status Indicator
4.2 V Output Voltage with ±1% Accuracy Over Line and Temperature.

Last 6 months Inventory & Pricing History

Alternative Descriptions

Battery Charger, Li-Ion, 1.5A, Msop | Newark Electronics
BATTERY CHARGER, LI-ION, 1.5A, MSOP | element14
Single Cell Li-Battery Charger | Analog Devices

Frequently Asked Questions

Where can I find additional details, specifications and documents for a ADP2291ARMZ-R7?

Additional datasheets, footprints and schematics for ADP2291ARMZ-R7 are listed on our Part Details page. You can also find images and similar parts to ADP2291ARMZ-R7 on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for ADP2291ARMZ-R7 on our Product Comparison page. Access via the 'View Pricing & Stock' button to view ADP2291ARMZ-R7 price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does ADP2291ARMZ-R7 fall under?

The ADP2291ARMZ-R7 is listed under Linear Battery Chargers.

Can I view similar or alternative parts?

You can view similar parts to ADP2291ARMZ-R7 when available in the Linear Battery Chargers range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the ADP2291ARMZ-R7 you can contact the distributor directly for product support, shipping queries etc.

Is the ADP2291ARMZ-R7 RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Analog Devices.

Which authorised distributors for ADP2291ARMZ-R7 have stock available?

Authorised distributors including Newark Electronics, element14, Farnell, Analog Devices and Rochester Electronics have stock available or on a lead time for ADP2291ARMZ-R7.

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