MAX1908ETI+T by Analog Devices

Low-Cost Multichemistry Battery Chargers

Status: Active
Series: MAX1908
RoHS: Unknown
View Datasheet Manufacturer Site View Pricing & Stock

The MAX1908/MAX8724/MAX8765/MAX8765A highly integrated, multichemistry battery-charger control ICs simplify the construction of accurate and efficient chargers. These devices use analog inputs to control charge current and voltage, and can be programmed by the host or hardwired. The MAX1908/MAX8724/MAX8765/MAX8765A achieve high efficiency using a buck topology with synchronous rectification. The MAX1908/MAX8724/MAX8765/MAX8765A feature input current limiting. This feature reduces battery charge current when the input current limit is reached to avoid overloading the AC adapter when supplying the load and the battery charger simultaneously. The MAX1908/MAX8724/MAX8765/MAX8765A provide outputs to monitor current drawn from the AC adapter (DC input source), battery-charging current, and the presence of an AC adapter. The MAX1908's conditioning charge feature provides 300mA to safely charge deeply discharged lithium-ion (Li+) battery packs. The MAX1908 includes a conditioning charge feature while the MAX8724/MAX8765/MAX8765A do not. The MAX1908/MAX8724/MAX8765/MAX8765A charge two to four series Li+ cells, providing more than 5A, and are available in a space-saving, 28-pin, thin QFN package (5mm x 5mm). An evaluation kit is available to speed designs.

Prices starting from US$4.64


Distributor Starting From Stock
Logo for Newark Electronics Newark Electronics US$4.64
1,039
Buy Now
Logo for element14 element14 US$5.19
1,039
Buy Now
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Features

±0.5% Output Voltage Accuracy Using Internal Reference (±0.4% for MAX8765A, 2-/3-Cell Only)
±4% Accurate Input Current Limiting
±5% Accurate Charge Current
Analog Inputs Control Charge Current and Charge Voltage
Outputs for Monitoring Current Drawn from AC Adapter Charging Current AC Adapter Presence
Current Drawn from AC Adapter
Charging Current
AC Adapter Presence
Up to 17.6V Battery-Voltage Set Point
Maximum 28V Input Voltage
> 95% Efficiency
Shutdown Control Input
Charge Any Battery Chemistry Li+, NiCd, NiMH, Lead Acid, etc.
Li+, NiCd, NiMH, Lead Acid, etc.

Specifications

Charging VIN (V) (max) 28
Max. ICHG (A) 5
Cell Chemistry Lead AcidLi-IonLi-PolymerNiCdNiMHUniversal
# NiMH/ NiCd Cells 2345678910
# Lithium Ion Cells 234
Protected VIN (V) (max) 28
Charger (V) 0 to 17.6
Oper. Temp. (°C) -40 to +85
Package/Pins TQFN/28
BudgetaryPrice (See Notes) 3.94


MAX1908ETI+T Semiconductors - ICs by Analog Devices

BATTERY CHARGER LI-ION 5A TQFN-28

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

Specifications

Battery Type Li-Ion
Input Voltage 28V
Battery Charge Voltage 4.2V
Charge Current Max 5A
Battery IC Case Style TQFN
No. of Pins 28Pins
No. of Series Cells 4
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range -
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

Battery Charger, Li-Ion, 5A, Tqfn-28 | Newark Electronics
BATTERY CHARGER, LI-ION, 5A, TQFN-28 | element14

Frequently Asked Questions

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Additional datasheets, footprints and schematics for MAX1908ETI+T are listed on our Part Details page. You can also find images and similar parts to MAX1908ETI+T on this page.

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Is the MAX1908ETI+T RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for MAX1908ETI+T have stock available?

Authorised distributors including Newark Electronics, element14 and Farnell have stock available or on a lead time for MAX1908ETI+T .

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