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General Description

The MAX9928 evaluation kit (EV kit) provides a proven

design to evaluate the MAX9928 uni-/bidirectional, high-

side, current-sense amplifier, which offers precision accu-

racy specifications of V

< 400µV and gain error

< 1.0%. This EV kit demonstrates the MAX9928 in an ultra-

small, 1mm x 1.5mm x 0.6mm, 6-bump UCSP™ package.

The MAX9928 is also available in an 8-pin µMAX

, but

that package is not compatible with this EV kit.

The MAX9928 EV kit PCB comes with a MAX9928FABT+

installed, which is the 5µA/mV gain version. The

MAX9928 EV kit can also be used to evaluate the

MAX9928T, MAX9929F, and MAX9929T (2µA/mV, 50V/V,

and 20V/V, respectively). This EV kit can also evaluate

the MAX4372 in a footprint-compatible UCSP package.

Contact the factory for free samples of the pin-compatible

MAX9928TABT+, MAX9929FABT+, or MAX9929TABT+

devices.

Features

o Precision Real-Time Current Monitoring

o -0.1V to +28V Input Common-Mode Range

o Evaluates MAX9928, MAX9929, and MAX4372

o V

< 0.4mV; Gain Error < 1%

o SIGN Bit to Show Charge/Discharge Current Flow

o Lead(Pb)-Free and RoHS Compliant

o Proven PCB Layout

o Fully Assembled and Tested

Evaluates: MAX9928/MAX9929/MAX4372

MAX9928 Evaluation Kit

________________________________________________________________

Maxim Integrated Products

19-4397; Rev 0; 12/08

Component List

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.

Ordering Information

Component Suppliers

DESIGNATION QTY DESCRIPTION

CIN, COUT 0 Not installed, capacitors (0603)

C3 1

0.1μF ±10%, 50V X7R ceramic

capacitor (0603)

Murata GRM188R71H104K

C4 1

1μF ±10%, 50V X5S ceramic

capacitor (0603)

Taiyo Yuden UMK107C5105KA

DESIGNATION QTY DESCRIPTION

RSENSE 1

0.1 ±1%, 1/2W sensing resistor

(1206)

Vishay/Dale WSL1206R1000FEB18

RIN1, RIN2 0

Not installed, resistors—short

ROUT 1 10k ±1% resistor (0603)

U1 1

Precision current-sense amplifier

(6 UCSP)

Maxim MAX9928FABT+

— 1 PCB: MAX9928 Evaluation Kit+

SUPPLIER PHONE WEBSITE

Murata Electronics North America, Inc. 770-436-1300 www.murata-northamerica.com

Taiyo Yuden 800-348-2496 www.t-yuden.com

Vishay 402-563-6866 www.vishay.com

PART TYPE

MAX9928EVKIT+ EV Kit

Denotes lead(Pb)-free and RoHS compliant.

UCSP is a trademark and µMAX is a registered trademark of Maxim Integrated Products, Inc.

Note: Indicate that you are using the MAX9928 when contacting these component suppliers.

Summary of content (4 pages)

PAGE 1
9-4397; Rev 0; 12/08 MAX9928 Evaluation Kit The MAX9928 evaluation kit (EV kit) provides a proven design to evaluate the MAX9928 uni-/bidirectional, highside, current-sense amplifier, which offers precision accuracy specifications of V OS < 400µV and gain error < 1.0%. This EV kit demonstrates the MAX9928 in an ultrasmall, 1mm x 1.5mm x 0.6mm, 6-bump UCSP™ package. The MAX9928 is also available in an 8-pin µMAX®, but that package is not compatible with this EV kit.
PAGE 2
Evaluates: MAX9928/MAX9929/MAX4372 MAX9928 Evaluation Kit Quick Start Detailed Description of Hardware Recommended Equipment The MAX9928 evaluation kit (EV kit) provides a proven design to evaluate the MAX9928 uni-/bidirectional, high-side, current-sense amplifier, which offers precision accuracy specifications of VOS < 400µV and gain error < 1.0%.
PAGE 3
MAX9928 Evaluation Kit The MAX9928 and MAX9929 have a digital SIGN output to indicate the direction of the load current flow (charge vs. discharge current for a battery). To evaluate current flowing in the opposite direction, swap the position of the 12V supply and the electronic load (connect the 12V supply to RS- and connect the electronic load to RS+). Verify that the OUT voltmeter still reads approximately 2.5V and the SIGN voltmeter has changed to 0V.
PAGE 4
Evaluates: MAX9928/MAX9929/MAX4372 MAX9928 Evaluation Kit Figure 2. MAX9928 EV Kit Component Placement Guide— Component Side Figure 3. MAX9928 EV Kit PCB Layout—Component Side Figure 4. MAX9928 EV Kit PCB Layout—Solder Side 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.