MAX1612 Evaluation MAX1612 evaluation kit) complete bridge-batter

The Datasheet Archive - 100 Million Datasheets from 7500 Manufacturers.

MAX1612 Evaluation MAX1612 evaluation kit) complete bridge-batter

Datasheet Thumbnail

Top Searches for this datasheet

19-4785; 11/98
MAX1612 Evaluation
MAX1612 evaluation kit) complete bridge-battery management circuit. small 2.4V, 50mAh NiCd battery, similar type commonly used bridge circuits notebook computers, mounted board. When main power source disconnected, MAX1612 boosts 2-cell bridge battery voltage power load. MAX1612 also controls battery's trickle charge cycle. MAX1612 evaluation board also used evaluate MAX1613. Simply order free sample MAX1613EEE replace MAX1612 with MAX1613. Bridge-Battery Charger 50mA Bridge Output Linear Regulator Input Voltage Disconnect Detection Fully Assembled Tested Surface-Mount Board
Features
Evaluates: MAX1612/MAX1613
Ordering Information
PART MAX1612EVKIT TEMP. RANGE +70°C PACKAGE QSOP
Component List
DESIGNATION BATT1 DESCRIPTION 2.4V, 50mAh NiCd battery pack Technical N50AAAF2SMT Sanyo N50AAA) 0.33µF ceramic capacitor 4.7nF ceramic capacitor 68nF ceramic capacitor ceramic capacitor 100µF, low-ESR tantalum TPSD107M010R0100 Sprague 593D107X0010D2W 22µF, low-ESR tantalum TPSE226M035R0300 Sprague 593D226X0035E2W installed 30V, 500mA Schottky diode Motorola MBR0530 installed DESIGNATION J1-J5 None None None DESCRIPTION 22µH, 800mA power inductor Coilcraft DS1608C-223, Sumida CD43-220, equivalent 2-pin jumpers installed 2.2k, resistor 442k, resistor 20k, resistor 200k, resistor 160k, resistor 470k, resistors Momentary switch MAX1612EEE Shunts MAX1612 printed circuit board MAX1612/MAX1613 data sheet
Component Suppliers
SUPPLIER Coilcraft Coiltronics Sprague Sumida Technical PHONE 847-639-6400 561-241-7876 603-224-1961 847-956-0666 714-253-9944 847-639-1469 561-241-9339 603-224-1430 847-956-0702 714-253-9949
Quick Start
MAX1612 shipped with on-board battery disconnected. battery must charged before use. Follow these steps charge battery verify board operation. turn power supply until connections completed. Install shunt across jumpers board operation without external signals. Note: sure reinstall shunt across prior shipment, this shunt removed disconnect battery.
Maxim Integrated Products
free samples latest literature: http://www.maxim-ic.com, phone 1-800-998-8800. small orders, phone 1-800-835-8769.
MAX1612 Evaluation Evaluates: MAX1612/MAX1613
Connect power supply VCHARGE voltmeters FULL VMAIN pads. Turn power supply momentarily press Switch reset internal counter. Then verify that voltmeter attached FULL indicates logic-low level 0.4V). Jumper connects FULL CCMD pin, placing MAX1612 battery-charge mode. voltmeter attached VMAIN will read input voltage. battery will take hours charge. Full charge indicated when FULL goes high 2.4V). Physically disconnect input supply, VMAIN voltage will held above MAX1612.
Note: board operated using external 2.4V power supply instead on-board battery removing shunt across jumper attaching supply BBATT pin.
Detailed Description
MAX1612 evaluation board operated with without external control. With shunts across J1-J5, board will drive VMAIN when VCHARGE removed will control charging bridge battery whenever VCHARGE greater than Alternatively, shunts across J3-J5 removed external signals used control board.
Jumper Selection
jumpers board removed allow alternate batteries control MAX1612 with external signals. Table lists jumpers their functions.
Component Selection
capacitor values controlling charge discharge timers will need adjusted each application. ideal charge time depends charge current actual battery being used. discharge time depends load during discharge cycle. Refer MAX1612 data sheet instructions selecting values your application. Resistor diode installed provide low-level current compensate bridge battery's self-discharge.
Table Jumper Functions
JUMPER SHUNT POSITION Shorted Open Shorted Open Shorted Open Shorted Open BBON open On-board battery disconnected CCMD connected FULL CCMD open BBON connected CONNECTION VCHARGE connected VMAIN VCHARGE disconnected On-board battery connected Normal connection external battery power supply connected BBATT pad. Charges battery whenever FULL goes low. Charge cycle controlled external signal connected CCMD pad. Turns DC-DC converter whenever goes low. DC-DC converter controlled external signal connected BBON pad. Figure MAX1612 data sheet. internal timer counts down whenever low. countdown function controlled external signal connected DCMD pad. MAX1612 OPERATION Normal connection
Shorted Open
DCMD connected DCMD open
VCHARGE
OPEN MBR0530 VMAIN 22µF 22µH 2.2k
BBATT
Figure MAX1612 Schematic
OPEN 100µF
BATT1 2.4V, 50mAh
MAX1612
BBATT ISET
ISET 0.33µF 470k 470k FULL
442k
FULL
CCMD
CCMD
200k
160k OPEN
68nF
BBON
BBON
4.7nF
DCMD
DCMD PGND
Evaluates: MAX1612/MAX1613
MAX1612 Evaluation
MAX1612 Evaluation Evaluates: MAX1612/MAX1613
1.0"
Figure MAX1612 Component Placement Guide- Component Side
1.0"
1.0"
Figure MAX1612 Board Layout-Component Side
Figure MAX1612 Board Layout-Solder Side
Maxim cannot assume responsibility circuitry other than circuitry entirely embodied Maxim product. circuit patent licenses implied. Maxim reserves right change circuitry specifications without notice time.
_Maxim Integrated Products, Gabriel Drive, Sunnyvale, 94086 408-737-7600 1998 Maxim Integrated Products Printed registered trademark Maxim Integrated Products.

MAX1612 Evaluation MAX1612 evaluation kit) complete bridge-batter

Top Searches for this datasheet

Other recent searches