MAX8601EVKIT Maxim Integrated, MAX8601EVKIT Datasheet

MAX8601EVKIT

Manufacturer Part Number

MAX8601EVKIT

Description

Battery Management Evaluation Kit for the MAX8601

Manufacturer

Maxim Integrated

Series

MAX8600, MAX8601r

Datasheet

1.MAX8601EVKIT.pdf (5 pages)

Specifications of MAX8601EVKIT

Battery Type

Li-Ion, Li-Poly

Operating Supply Voltage

4.15 V to 7 V

Charge Safety Timers

Yes

Operating Supply Current

750 uA

Product Type

Charge Management

Temperature Monitoring

Yes

Current page: 1 of 5
Download datasheet (499Kb)

• 20V, 2A variable power supply

• 5V power supply

• 1-cell Li+ battery

• Digital voltmeter (DVM)

The MAX8601 EV kit is fully assembled and tested.

Follow these steps to verify board operation.

1) Verify on the MAX8601 EV kit that there is no shunt

2) Verify on the MAX8601 EV kit that there is a shunt

3) Verify on the MAX8601 EV kit that there is a shunt

4) Preset the variable 2A power supply to +5V. Turn

5) Ensure that the 5V power supply is off. Do not turn on

6) Connect the positive lead of the 2A power supply to

7) Connect the positive lead of the 5V power supply to

8) Connect the DVM from BAT+ to BAT-.

9) Turn on the power supplies. Verify that the BAT+

10) Determine the correct Li+ cell polarity. Connect

11) Repeat steps using the USB input.

MAX8601 Evaluation Kit

Note: Indicate you are using the MAX8600/MAX8601 when contacting these component suppliers.

Assmann

Panasonic

Taiyo Yuden

TDK

Vishay

on JU2.

between positions 1 and 2 on JU3 to select a

750mA DC charge current.

on JU4 to disable the THM input.

off the power supply. Do not turn on the power

supply until all connections are made.

the power supply until all connections are made.

the DCIN pad on the EV kit and the negative lead of

the power supply to the GND pad on the EV kit.

the VLOGIC pad on the EV kit and the negative lead

of the power supply to the GND pad on the EV kit.

voltage is 4.2V.

the positive side of the single-cell Li+ battery to

BAT+. Connect the negative side of the single-cell

Li+ battery to BAT-. Monitor charging cycles.

_______________________________________________________________________________________

SUPPLIER

Recommended Equipment

COMPONENT

Capacitors

USB jack

Resistors

Quick Start

877-ASSMANN

714-373-7366

408-573-4150

888-835-6646

402-563-6866

PHONE

The MAX8601 is designed to charge a single-cell Li+

battery from a 4.15V to 7V DC source voltage or a

100mA/500mA 5V USB port. The MAX8601 accepts

input voltages up to 14V, but disables charging when

the input voltage exceeds 7.5V. A male, B-type USB

jack is available to connect the MAX8601 EV kit to a

standard 100mA/500mA USB port to power the EV kit.

Note that the +5V logic input supply is required when

charging from USB.

The MAX8601 charger uses voltage, current, and ther-

mal control loops to facilitate charging of a single Li+

cell and to protect the battery. When a Li+ battery with

a cell voltage below 3V is inserted, the charger enters

the prequalification stage, precharging the cell with

10% of the user-programmed fast-charge current.

Once the cell voltage rises above 3V, the charger soft-

starts into the fast-charge stage. The fast-charge cur-

rent level is programmed with a resistor from SETI to

GND (JU3). A red LED indicates the charge status. As

the battery voltage approaches 4.2V, the charging cur-

rent is reduced. If the battery current drops below 7.5%

of the fast-charging current, the red LED turns off sig-

naling the battery is charged; however, charging con-

tinues for an additional 30 minutes to top off the battery.

After charging is complete, the charger restarts if the

battery voltage falls below 4.05V. See

description of the charge states.

The MAX8601 EV kit features an easily adjustable

charge-current limit using JU3. JU3 allows the user to

select one of three charge-current levels. Remove the

shunt to select a 500mA charge current, place the shunt

between positions 1 and 2 to select 750mA charge cur-

rent or between 2 and 3 to select a 1A charge current.

Setting the Charge Current (SETI, USEL)

www.assmann.com

www.panasonic.com

www.t-yuden.com

www.component.tdk.com

www.vishay.com

Component Suppliers

Detailed Description

WEBSITE

Charge Profile

Input Source

Table

1 for a

Related parts for MAX8601EVKIT

MAX8601EVKIT Summary of contents

Page 1

MAX8601 Evaluation Kit Recommended Equipment • 20V, 2A variable power supply • 5V power supply • 1-cell Li+ battery • Digital voltmeter (DVM) The MAX8601 EV kit is fully assembled and tested. Follow these steps to verify board operation. 1) ...

Page 2

Table 1. Charge States with THM = GND or 3.94kΩ < R CONDITIONS EN POK* Low High Low Low V BAT Low Low 3V < V Low Low Low Low Low Low 4.05 < V High High Low Low Low ...

Page 3

MAX8601 Evaluation Kit The MAX8601 monitors battery temperature through a negative TC thermistor in close thermal contact with the battery. Select a thermistor resistance that is 10kΩ at +25°C and has a beta of 3500. The IC compares the resistance ...

Page 4

USBIN DCIN GND R2 100kΩ +5V USEL R9 1kΩ +5V EN Figure 1. MAX8601 EV Kit Schematic _______________________________________________________________________________________ MAX8601 Evaluation Kit +5V R5 100kΩ FLT USB C2 10 POK 1µF 4 GND 11 ...

Page 5

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 6 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2005 Maxim Integrated Products Figure 3. MAX8601 EV Kit PC Board Layout—Component Side Printed USA is a registered trademark of Maxim Integrated Products, Inc ...

Related keywords

MAX8601EVKIT datasheet
MAX8601EVKIT data sheet
MAX8601EVKIT pdf datasheet
MAX8601EVKIT component
MAX8601EVKIT part
MAX8601EVKIT distributor
MAX8601EVKIT RoHS
MAX8601EVKIT datasheet download