MAX9937EVKIT+ Maxim Integrated Products, MAX9937EVKIT+ Datasheet
MAX9937EVKIT+
Manufacturer Part Number
MAX9937EVKIT+
Description
EVAL KIT FOR MAX9937
Manufacturer
Maxim Integrated Products
Specifications of MAX9937EVKIT+
Channels Per Ic
1 - Single
Amplifier Type
Current Sense
Output Type
Single-Ended
-3db Bandwidth
350kHz
Current - Output / Channel
22mA
Operating Temperature
-40°C ~ 125°C
Current - Supply (main Ic)
20µA
Voltage - Supply, Single/dual (±)
2.7 V ~ 5.5 V
Board Type
Fully Populated
Utilized Ic / Part
MAX9937
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Slew Rate
-
The MAX9937 evaluation kit (EV kit) is an assembled
and tested PCB used to evaluate the MAX9937 automo-
tive grade current-sense amplifier, designed for unidi-
rectional high-side current-sense applications. The EV
kit can be used to demonstrate the applicability of the
MAX9937 to withstand automotive transients, such as
load-dump protection, reverse-battery protection, and
filtering for EMI.
19-4406; Rev 0; 1/09
Note: Indicate that you are using the MAX9937 when contacting
these component suppliers.
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.
IRC, Inc.
Murata Electronics
North America, Inc.
TDK Corp.
DESIGNATION QTY
SUPPLIER
C2, C4
R3, R4
C1
C3
U1
R1
R2
—
________________________________________________________________ Maxim Integrated Products
1
0
1
1
1
2
1
1
361-992-7900 www.irctt.com
770-436-1300
847-803-6100 w w w .com p onent.td k.com
Component Suppliers
1µF ±10%, 50V X7R ceramic
capacitor (1206)
Murata GRM31MR71H105KA
TDK C3216X7R1H105K
Not installed, capacitors (0603)
0.01µF ±10%, 50V X7R ceramic
capacitor (0603)
Murata GRM188R71H103K
TDK C1608X7R1H103K
0.05Ω ±1%, 0.5W current-sense
resistor (1206)
IRC LRC-LR1206LF-01-R050-F
20kΩ ±1% resistor (0603)
1kΩ ±1% resistor (1206)
Automotive grade current-sense
amplifier (5 SC70)
Maxim MAX9937AXK+
PCB: MAX9937 Evaluation Kit+
PHONE
General Description
Component List
DESCRIPTION
www.murata-
northamerica.com
WEBSITE
MAX9937 Evaluation Kit
o Reverse-Battery and Load-Dump Protection
o +4V to +28V Input Common-Mode Range
o +2.7V to +5.5V Supply Range
o Flexible EMI Filtering
o Lead(Pb)-Free and RoHS Compliant
o Fully Assembled and Tested
Before beginning, the following equipment is needed:
•
•
•
•
The MAX9937 EV kit is fully assembled and tested.
Follow the steps below to verify board operation.
Caution: Do not turn on power supplies until all con-
nections are completed.
1) Set the input power supply to 12V and connect the
2) Set the VCC power supply to 5V and connect the
3) Set the electronic load to sink 2A.
4) Connect the electronic load’s positive terminal to
5) Connect the DVM across the VOUT pad and the
6) Turn on the 5V power supply.
+ Denotes lead(Pb)-free and RoHS compliant.
MAX9937EVKIT+
12V, 2A power supply (VBAT)
5V power supply (VCC)
Electronic load capable of sinking 2A
Digital voltmeter (DVM)
positive terminal to the VBAT pad. Connect the
ground of the power supply to the GND pad.
positive terminal to the VCC pad. Connect the
ground of the VCC supply to the GND pad.
the LOAD pad. Connect the load’s ground to the
GND pad.
GND pad.
-20V to +40V
PART
Ordering Information
Recommended Equipment
Quick Start
TYPE
EV Kit
Features
Procedure
1
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Datasheet:
MAX9937EVKIT+ Summary of contents
Page 1
... Input Common-Mode Range o +2.7V to +5.5V Supply Range o Flexible EMI Filtering o Lead(Pb)-Free and RoHS Compliant o Fully Assembled and Tested PART MAX9937EVKIT+ + Denotes lead(Pb)-free and RoHS compliant. Before beginning, the following equipment is needed: • 12V, 2A power supply (VBAT) • ...
Page 2
MAX9937 Evaluation Kit 7) Turn on the 12V power supply. 8) Adjust the electronic load current (I 0A and 2A and verify that V OUT V according to the following equation: SENSE = × OUT SENSE where V ...
Page 3
Figure 1. MAX9937 EV Kit Schematic _______________________________________________________________________________________ MAX9937 Evaluation Kit 3 ...
Page 4
MAX9937 Evaluation Kit Figure 2. MAX9937 EV Kit Component Placement Guide— Component Side 4 _______________________________________________________________________________________ Figure 3. MAX9937 EV Kit Component PCB Layout— Component Side ...
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. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 _____________________ 5 © 2009 Maxim Integrated Products ...