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Analog Devices ADP2291ARMZ-R7 — Analog & Data Acquisition

ADP2291ARMZ-R7 Li-Ion Battery Charger IC, 1.5A, 8-MSOP

MPNADP2291ARMZ-R7
End of Life

Analog Devices ADP2291ARMZ-R7 single-cell Li-Ion battery charger IC, 1.5A max charge current, 4.2V battery pack voltage, 8-MSOP package, tape and reel.

$4.89Ref. price · indicative, final on quote
Packaging8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
RoHSROHS3 Compliant
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

ADP2291ARMZ-R7 specifications
ParameterValue
MountingSurface Mount
Battery pack voltage4.2V
Voltage12V
Current - chargingConstant - Programmable
Charge current - max1.5A
Operating temperature-40°C ~ 85°C (TA)
PackageTape & Reel (TR); Cut Tape (CT)
Case8-TSSOP, 8-MSOP (0.118\", 3.00mm Width)
Number of cells1
Fault protectionOver Temperature
Battery chemistryLithium Ion
Programmable featuresCurrent, Timer

Product details

Active production — no BOM risk for new designs

The ADP2291ARMZ-R7: ROHS3 compliance is confirmed, so the part ships without RoHS exemption restrictions across global markets.

Single-cell Li-Ion charging with programmable current and timer

This is a constant-current programmable charger for one-cell lithium-ion battery packs, with a maximum charge current of 1.5 A and a battery regulation voltage of 4.2 V. The charge current and charge-termination timer are both programmable via external resistors, giving the designer control over the charge profile without firmware overhead. Over-temperature fault protection shuts down the charger if the die temperature exceeds the safe operating limit, preventing thermal runaway during a fault condition.

Package and supply voltage — board-fit for portable designs

Housed in an 8-MSOP package (3.00 mm width, 0.118" body width), the ADP2291ARMZ-R7 occupies minimal PCB area and is suited for space-constrained handheld or wearable products. Surface-mount mounting with tape-and-reel or cut-tape packaging supports standard pick-and-place assembly lines. The maximum supply voltage of 12 V allows direct connection to common USB power sources (5 V) or wall adapters without an additional pre-regulator.

Frequently asked questions

What is the maximum charge current and battery voltage for ADP2291ARMZ-R7?

The maximum charge current is 1.5 A, and the battery regulation voltage is 4.2 V for a single-cell lithium-ion pack.

What package does ADP2291ARMZ-R7 come in?

It is supplied in an 8-MSOP package (3.00 mm width, 0.118" body width), surface-mount, available in tape-and-reel or cut-tape formats.

What compliance documentation is available for ADP2291ARMZ-R7?

The part is ROHS3 compliant. Standard compliance documentation including the datasheet and RoHS certificate is available from the manufacturer.