MAX846AEEE+ by Analog Devices

Cost-Saving, Multichemistry, Battery Charger System


The MAX846A is a cost-saving multichemistry battery-charger system that comes in a space-saving 16-pin QSOP. This integrated system allows different battery chemistries (Li-Ion, NiMH or NiCd cells) to be charged using one circuit. In its simplest application, the MAX846A is a stand-alone, current-limited float voltage source that charges Li-Ion cells. It can also be paired up with a low-cost microcontroller (µC) to build a universal charger capable of charging Li-Ion, NiMH, and NiCd cells. An internal 0.5%-accurate reference allows safe charging of Li-Ion cells that require tight voltage accuracy. The voltage- and current-regulation loops used to control a low-cost external PNP transistor (or P-channel MOSFET) are independent of each other, allowing more flexibility in the charging algorithms. The MAX846A has a built-in 1%, 3.3V, 20mA linear regulator capable of powering the µC and providing a reference for the µC's analog-to-digital converters. An on-board reset notifies the controller upon any unexpected loss of power. The µC can be inexpensive, since its only functions are to monitor the voltage and current and to change the charging algorithms.

Where to Buy

Prices starting from US$3.25

Distributor Stock
Logo for Farnell
Farnell
from US$3.25
No stock
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Logo for Analog Devices
Analog Devices
from US$5.13
1,430
in stock
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Logo for CoreStaff
CoreStaff
from US$3.78
60
in stock
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Logo for element14
element14
from US$5.55
-
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Logo for Newark Electronics
Newark Electronics
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-
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Features

Multichemistry Charger System (Li-Ion, NiMH, NiCd)
Independent Voltage and Current Loops
±0.5% Internal Reference for Li-Ion Cells
Lowers Cost: Stands Alone or Uses Low-Cost µC Built-In 1% Linear Regulator Powers µC Linear Regulator Provides Reference to µC ADCs Built-In µC Reset Controls Low-Cost External PNP Transistor or P-Channel MOSFET
Stands Alone or Uses Low-Cost µC
Built-In 1% Linear Regulator Powers µC
Linear Regulator Provides Reference to µC ADCs
Built-In µC Reset
Controls Low-Cost External PNP Transistor or P-Channel MOSFET
Space-Saving 16-Pin QSOP
Charging-Current-Monitor Output
< 1µA Battery Drain when Off

Specifications

Charging VIN (V) (max) 20
Max. ICHG (A) 2
Cell Chemistry Li-IonLi-PolymerNiCdNiMH
# NiMH/ NiCd Cells 1234567891011
# Lithium Ion Cells 12
Protected VIN (V) (max) 20
Charger (V) 18
Oper. Temp. (°C) -40 to +85
Package/Pins QSOP/16
BudgetaryPrice (See Notes) 3.7


MAX846AEEE+ Semiconductors - ICs by Analog Devices

BATTERY CHRG LI-ION/NICD QSOP-16

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Battery Type Li-Ion NiCd NiMH
Input Voltage 20V
Battery Charge Voltage -
Charge Current Max 2A
Battery IC Case Style QSOP
No. of Pins 16Pins
No. of Series Cells 2
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

Cost-Saving, Multichemistry, B | Analog Devices
IC, BATT SYSTEM CHARGER, 16SOP | Farnell
Battery Chrg, Li-Ion/Nicd, Qsop-16 | Newark Electronics

Frequently Asked Questions

Where can I find additional details, specifications and documents for a MAX846AEEE+ ?

Additional datasheets, footprints and schematics for MAX846AEEE+ are listed on our Part Details page. You can also find images and similar parts to MAX846AEEE+ on this page.

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Is the MAX846AEEE+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for MAX846AEEE+ have stock available?

Authorised distributors including Analog Devices, CoreStaff, element14, Farnell and Newark Electronics have stock available or on a lead time for MAX846AEEE+ .

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