MAX713CPE Datasheet Download

Part No.:
MAX713CPE
Download:
Download Datasheet
Description:
[NiCd/NiMH Battery Fast-Charge Controllers]
File Size:
219 K
Page:
17 Pages
Logo:
Manufacturer:
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
PCB Prototype
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19-0100; Rev 6; 12/08
KIT
ATION
EVALU
BLE
AVAILA
NiCd/NiMH Battery
Fast-Charge Controllers
Features
Fast-Charge NiMH or NiCd Batteries
Voltage Slope, Temperature, and Timer
Fast-Charge Cutoff
Charge 1 to 16 Series Cells
Supply Battery’s Load While Charging
(Linear Mode)
Fast Charge from C/4 to 4C Rate
C/16 Trickle-Charge Rate
Automatically Switch from Fast to Trickle Charge
Linear Mode Power Control
5µA (max) Drain on Battery when Not Charging
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.
The evaluation kit is available: Order the MAX712EVKIT-
DIP for quick evaluation of the linear 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
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
WALL
CUBE
R1
THI
V+
C1
1μF
R3
68kΩ
TEMP
VLIMIT
REF
DRV
D1
1N4001
BATT+
C3
10μF
MAX712
MAX713
13 GND
12 BATT-
11 CC
10 PGM3
9
PGM2
10μF
MAX712
MAX713
BATTERY
R4
22kΩ
LOAD
CC BATT- TLO GND
C2
0.01μF
R
SENSE
DIP/SO
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim's website at www.maxim-ic.com.