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DS2715BZ+

Description
NiMH Battery Pack Charge Controller
CategoryPower/power management    The power supply circuit   
File Size588KB,17 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Environmental Compliance
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DS2715BZ+ Overview

NiMH Battery Pack Charge Controller

DS2715BZ+ Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerMaxim
Parts packaging codeSOIC
package instructionROHS COMPLIANT, SOP-16
Contacts16
Reach Compliance Codecompliant
ECCN codeEAR99
Factory Lead Time6 weeks
Samacsys Confidence3
Samacsys StatusReleased
Samacsys PartID599462
Samacsys Pin Count16
Samacsys Part CategoryIntegrated Circuit
Samacsys Package CategorySmall Outline Packages
Samacsys Footprint Name16 SO_1
Samacsys Released Date2017-01-11 21:24:41
Is SamacsysN
Adjustable thresholdNO
Analog Integrated Circuits - Other TypesPOWER SUPPLY SUPPORT CIRCUIT
JESD-30 codeR-PDSO-G16
length9.9 mm
Number of channels1
Number of functions1
Number of terminals16
Maximum operating temperature70 °C
Minimum operating temperature
Package body materialPLASTIC/EPOXY
encapsulated codeSOP
Encapsulate equivalent codeSOP16,.25
Package shapeRECTANGULAR
Package formSMALL OUTLINE
Peak Reflow Temperature (Celsius)NOT SPECIFIED
power supply4.5/16.5 V
Certification statusNot Qualified
Maximum seat height1.75 mm
Maximum supply current (Isup)1.6 mA
Maximum supply voltage (Vsup)16.5 V
Minimum supply voltage (Vsup)4.5 V
surface mountYES
Temperature levelCOMMERCIAL
Terminal formGULL WING
Terminal pitch1.27 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
width3.9 mm
Base Number Matches1
AVAILAB
LE
NiMH Battery Pack Charge Controller
www.maxim-ic.com
DS2715
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 0.167C to 2C.
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.
PIN CONFIGURATION
C
BIAS
V
CH
V
SS
LED1
DNC
V
SS
CTG
CTG
V
BATT
THM
R
T
V
DD
SNS-
SNS+
DIV
MODE
See Table 1 for Ordering Information.
16 SO
Table 1. ORDERING INFORMATION
PART
DS2715Z+
DS2715Z+T&R
DS2715BZ+
DS2715BZ+T&R
MARKING
D2715
D2715
D2715B
D2715B
PIN-PACKAGE
16 SO
16 SO
16 SO
16 SO
FEATURES
Charges 1 to 10 NiMH Cells
FAST-CHARGE at up to a 2C Rate
PRECHARGE and TOPOFF Charge Modes Help
Cell Conditioning
Functional Diagrams
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
+ Denotes a lead(Pb)-free/RoHS-compliant package.
T&R = Tape and reel.
OPERATIONAL DIAGRAM
APPLICATIONS
Portable DVD Players
Portable Television Sets
Handheld Gaming
Test Equipment
Pin Configurations appear at end of data sheet.
Handheld POS Terminals
Functional Diagrams continued at end of data sheet.
UCSP is a trademark of Maxim Integrated Products, Inc.
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
19-4592; 4/09

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