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Data Sheet

FULL DATA SHEET (PDF, 528kB) Download   E-Mail

Description

The DS2715 is well suited for cost-sensitive charger applications where the battery pack is either internal or external to the application. It has been optimized for safe and reliable charging of 1 to 10 NiMH cells in series. The internal gain block can be selected as either a comparator or transconductance amplifier for charge current regulation. This makes the DS2715 configurable as a switched DC charger, a linear current regulator, or a switchmode current source. The DS2715 pre-conditions severely depleted cells before entering full charge mode. It terminates full charge using the dT/dt technique, which requires an external sensing thermistor. Over-temperature, under-temperature, and over-voltage detection prevents charging under unsafe conditions. A user selectable charge timer allows charge rates from 0.167°C to 2°C. FAST-CHARGE, TOPOFF and DONE modes are included for highly reliable, safe charging of NiMH cells. Discharge mode allows the DS2715 to enter a low power sleep state while the cell pack is being discharged.

Key Features		Applications/Uses
Charges 1 to 10 NiMH Cells FAST-CHARGE up to a 2°C Rate PRECHARGE and TOPOFF Charge Modes Help Cell Conditioning Load Detection Allows the DS2715 to Enter Low Power Sleep Mode (Less than 10µA) while the Cell Pack is Discharged dT/dt Charge Termination Eliminates Cell Charge Stress Monitors Voltage, Temperature, and Time for Safety and Secondary Termination Regulates Current through Either Linear Control or Switch-Mode Control LED Output Displays Charge State Small 16-Pin SO Package		Handheld Gaming Handheld POS Terminals Portable DVD Players Portable Television Sets Test Equipment

Application Notes

Application Note 3607: Charging Batteries from USB - DS2715 Application Note 4180: Optimizing the Load-Switch Function of the DS2715 Battery-Charger IC - DS2715 Application Note 4214: Estimating Switching Speed for the DS2715 NiMH Battery Charger - DS2715

Evaluation Kits

none

Design Guides

Power Management for Battery-Powered Equipment (PDF)

Reliability Reports

Reliability Report: DS2715.pdf

Software/Models

none

Ordering Information
Notes: Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day. Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
Devices: 1-4 of 4
DS2715	Free Sample	Buy	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
DS2715KLINEAR			SOIC;16 pin; Dwg: 21-0041 (PDF) Use pkgcode/variation: S16+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS2715KSWITCH			SOIC;16 pin; Dwg: 21-0041 (PDF) Use pkgcode/variation: S16+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS2715Z+			SOIC;16 pin; Dwg: 21-0041 (PDF) Use pkgcode/variation: S16+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS2715Z+T&R			SOIC;16 pin; Dwg: 21-0041 (PDF) Use pkgcode/variation: S16+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis

More Information

New Product Press Release 2005-05-27

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Description   Key Features   Applications/Uses   Key Specifications   Diagram

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Price and Availability   Samples   Buy Online   Package Information   Lead-Free Information

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