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MAX712

Description
0.1 A BATTERY CHARGE CONTROLLER, PDSO16
Categorysemiconductor    Analog mixed-signal IC   
File Size732KB,17 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Download Datasheet Parametric Compare View All

MAX712 Overview

0.1 A BATTERY CHARGE CONTROLLER, PDSO16

MAX712 Parametric

Parameter NameAttribute value
Number of functions1
Number of terminals16
Rated input voltage5 V
Maximum limit input voltage5.5 V
Minimum limit input voltage4.5 V
Maximum operating temperature85 Cel
Minimum operating temperature-40 Cel
Processing package descriptionSO-16
stateACTIVE
CraftsmanshipCMOS
packaging shapeRectangle
Package SizeSMALL OUTLINE
surface mountYes
Terminal formGULL WING
Terminal spacing1.27 mm
terminal coatingtin lead
Terminal locationpair
Packaging MaterialsPlastic/Epoxy
Temperature levelINDUSTRIAL
control modePEAK current
Maximum output current0.1000 A
Analog IC other typesbattery charge controller
Switch configurationsingle
19-0100; Rev 5; 4/02
KIT
ATION
EVALU
E
BL
AVAILA
NiCd/NiMH Battery
Fast-Charge Controllers
Features
o
Fast-Charge NiMH or NiCd Batteries
o
Voltage Slope, Temperature, and Timer
Fast-Charge Cutoff
o
Charge 1 to 16 Series Cells
o
Supply Battery’s Load While Charging
(Linear Mode)
o
Fast Charge from C/4 to 4C Rate
o
C/16 Trickle-Charge Rate
o
Automatically Switch from Fast to Trickle Charge
o
Linear or Switch-Mode Power Control
o
5µA (max) Drain on Battery when Not Charging
o
5V Shunt Regulator Powers External Logic
General Description
The MAX712/MAX713 fast-charge Nickel Metal Hydride
(NiMH) and Nickel Cadmium (NiCd) batteries from a DC
source at least 1.5V higher than the maximum battery
voltage. 1 to 16 series cells can be charged at rates up
to 4C. A voltage-slope detecting analog-to-digital convert-
er, timer, and temperature window comparator determine
charge completion. The MAX712/MAX713 are powered
by the DC source via an on-board +5V shunt regulator.
They draw a maximum of 5µA from the battery when not
charging. A low-side current-sense resistor allows the
battery charge current to be regulated while still
supplying power to the battery’s load.
The MAX712 terminates fast charge by detecting zero
voltage slope, while the MAX713 uses a negative
voltage-slope detection scheme. Both parts come in 16-
pin DIP and SO packages. An external power PNP tran-
sistor, blocking diode, three resistors, and three
capacitors are the only required external components.
For high-power charging requirements, the MAX712/
MAX713 can be configured as a switch-mode battery
charger that minimizes power dissipation. Two evaluation
kits are available: Order the MAX712EVKIT-DIP for quick
evaluation of the linear charger, and the MAX713EVKIT-
SO to evaluate the switch-mode charger.
MAX712/MAX713
Ordering Information
PART
MAX712CPE
MAX712CSE
MAX712C/D
MAX712EPE
MAX712ESE
MAX712MJE
TEMP RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
-55°C to +125°C
PIN-PACKAGE
16 Plastic DIP
16 Narrow SO
Dice*
16 Plastic DIP
16 Narrow SO
16 CERDIP**
________________________Applications
Battery-Powered Equipment
Laptop, Notebook, and Palmtop Computers
Handy-Terminals
Cellular Phones
Portable Consumer Products
Portable Stereos
Cordless Phones
Ordering Information continued at end of data sheet.
*Contact
factory for dice specifications.
**Contact
factory for availability and processing to MIL-STD-883.
Typical Operating Circuit
DC IN
C4
0.01µF
Q1
2N6109
R2
150Ω
R1
Pin Configuration
TOP VIEW
VLIMIT 1
BATT+ 2
PGM0 3
PGM1 4
THI 5
TLO 6
TEMP 7
FASTCHG 8
16 REF
15 V+
14 DRV
C1
1µF
R3
68kΩ
TEMP
10µF
R4
22kΩ
LOAD
CC BATT- TLO GND
C2
0.01µF
VLIMIT
REF
BATT+
C3
10µF
WALL
CUBE
THI
V+
DRV
D1
1N4001
MAX712
MAX713
13 GND
12 BATT-
11 CC
10 PGM3
9
PGM2
MAX712
MAX713
BATTERY
R
SENSE
DIP/SO
SEE FIGURE 19 FOR SWITCH-MODE CHARGER CIRCUIT.
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

MAX712 Related Products

MAX712 MAX712C/D MAX712_02 MAX713
Description 0.1 A BATTERY CHARGE CONTROLLER, PDSO16 0.1 A BATTERY CHARGE CONTROLLER, PDSO16 0.1 A BATTERY CHARGE CONTROLLER, PDSO16 0.1 A BATTERY CHARGE CONTROLLER, PDSO16
Number of functions 1 1 1 1
Number of terminals 16 16 16 16
Rated input voltage 5 V 5 V 5 V 5 V
Maximum limit input voltage 5.5 V 5.5 V 5.5 V 5.5 V
Minimum limit input voltage 4.5 V 4.5 V 4.5 V 4.5 V
Maximum operating temperature 85 Cel 85 Cel 85 Cel 85 Cel
Minimum operating temperature -40 Cel -40 Cel -40 Cel -40 Cel
Processing package description SO-16 SO-16 SO-16 SO-16
state ACTIVE ACTIVE ACTIVE ACTIVE
Craftsmanship CMOS CMOS CMOS CMOS
packaging shape Rectangle Rectangle Rectangle Rectangle
Package Size SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE
surface mount Yes Yes Yes Yes
Terminal form GULL WING GULL WING GULL WING GULL WING
Terminal spacing 1.27 mm 1.27 mm 1.27 mm 1.27 mm
terminal coating tin lead tin lead tin lead tin lead
Terminal location pair pair pair pair
Packaging Materials Plastic/Epoxy Plastic/Epoxy Plastic/Epoxy Plastic/Epoxy
Temperature level INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL
control mode PEAK current PEAK current PEAK current PEAK current
Maximum output current 0.1000 A 0.1000 A 0.1000 A 0.1000 A
Analog IC other types battery charge controller battery charge controller battery charge controller battery charge controller
Switch configuration single single single single
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