MAX9017A Evaluation Kit
Evaluates: MAX9017A, MAX9017B,
MAX9018, MAX9019, and MAX9020
(Open-Drain)
Quick Start
Required Equipment
●
●
●
●
MAX9017A EV kit
1.8V to 5.5V, 100mA DC power supply
Precision voltage calibrator
Two digital multimeters
Before beginning, the following equipment is needed:
General Description
The MAX9017A evaluation kit (EV kit) is a fully assembled
and tested circuit board that contains all the components
necessary to evaluate both MAX9017 and MAX9019 ICs.
The MAX9017AEVKIT printed circuit board (PCB) comes
installed with MAX9017AEKA/V+ in 8-SOT23 package.
The device is a low-power, dual comparator with internal
1.24V voltage reference. The EV kit operates from a
single 1.8V to 5.5V DC power supply or from ±0.9V to
±2.75V split supply.
Procedure
Features
Follow the steps to verify board operation.
Caution:
Do not turn on power supplies until all connections
are completed and turn on V
CC
, V
SS
supplies before turning
on power supplies on the input pins.
●
+1.8V to +5.5V Supply Voltage Range Across V
DD
and V
SS
●
Dual-Channel Comparator with Built-in 1.24V Voltage
Reference
●
Proven PCB Layout
●
Fully Assembled and Tested
1)
2)
3)
Ordering Information
appears at end of data sheet.
4)
5)
6)
7)
8)
Verify that shunts on J1, J2 are open and shunts on
J3 is installed.
Set a DC power supply to 3.3V with a multi meter in
series to check supply current. Connect the positive
terminal of the power supply to the positive terminal
of multi meter for current and connect negative terminal
of multi meter to V
CC
test point and the ground
terminal of power supply to the GND test point.
Set precision voltage calibrator to 2.5V. Connect the
positive terminal of the calibrator to the INA+ test
point and the ground terminal to the GND test point.
Now short a wire between the INA+ test point and
INB+ test point. Also, short a wire between the REF/
INA- to INB- test points.
Enable DC power supply on V
CC
first and then turn
on voltage calibrator on INA+ test point.
Verify if the supply current measurement reading on
V
CC
pin is on the order of ~1.2µA.
Verify that OUTA and OUTB are at logic-high (3.3V).
Decrease the voltage set on INA+ test point to 1V on
voltage calibrator and that in turn decreases voltage
on INB+ test point as there is a short in between
INA+, INB+, as discussed in step 4. Now verify that
OUTA and OUTB are now at logic-low (0V).
319-100099; Rev 0; 11/17
MAX9017A Evaluation Kit
Evaluates: MAX9017A, MAX9017B,
MAX9018, MAX9019, and MAX9020
(Open-Drain)
interrupt on the comparator output when the battery voltage
is out of the predetermined range set by user.
For example, in a single-cell Li-Ion battery, 3.6V is a
nominal voltage range, with 2.9V being typical end-of-line
discharge state and 4.2V being the maximum charge voltage.
It is useful to track whether a Li-Ion battery voltage is
within 2.9V to 4.2V range during operation. When the battery
voltage falls out of this voltage range, a comparator in this
application circuit will raise an interrupt on the output to
alert the user.
Since the MAX9018 has an open-drain output structure,
we can wire AND by shorting both of the outputs together
and use a pullup resistor to supply voltage.
To configure the EV kit in the window detector application,
install jumper J2 and the appropriate resistors on the R3,
R2, and R6 pads. Resistors R3, R2, and R6 pads are
available for setting the overvoltage and undervoltage-
threshold levels. In this single-cell, Li-Ion application, by
appropriately choosing these resistors, OUTA provides an
active-low, undervoltage indication (≤2.9V), while OUTB
provides an active-low, overvoltage indication (≥4.2V).
ANDing the two open-drain outputs provides an active-
high, power-good signal when battery voltage is within
the 2.9V to 4.2V range. For the detailed design procedure
involved in calculating R3, R2, and R6, refer to the
MAX9017 IC data sheet.
Detailed Description of Hardware
The MAX9017A EV kit by default comes with MAX9017A
IC, which is dual comparator with internal voltage reference
and push-pull output in 8-SOT23 package. The EV kit
operates from a single 1.8V to 5.5V DC power supply. The
EV kit is meant to work with split supplies as well where
the voltage between V
DD
and V
SS
is ±0.9V to ±2.75V.
Default Application Circuit
The EV kit comes preconfigured using a single supply
configuration on generic dual comparator configuration.
These EV kits allow users to add external hysteresis in
addition to the 4mV internal hysteresis through the addition
of appropriate resistors on the R1 and R3 pads provided
on the EV board for CHA. The amount of hysteresis
added is given by the equation below, based on R1, R3
values:
HYSTERESIS
=
R3
×
V
CC
R1
Similarly, Hysteresis to CHB is added by appropriately
choosing R4, R5 resistors.
Other Application Circuit
This EV kit can be used in window-detector applications,
while the MAX9018 is being evaluated on this kit.
A window detector application is useful in cases when a
battery voltage needs to be monitored and thrown in an
Table 1. Default Jumper Settings
JUMPER
J1
J2
J3
*Default
position.
SHUNT POSITION
Installed
Not Installed*
Installed
Not Installed*
Installed*
Not Installed
No feedback is connected
Inbuilt voltage reference connected to INB+
Inbuilt voltage reference is not used for driving INB+
Single-supply operation
Split-supply operation enabled
DESCRIPTION
Positive feedback for external hysteresis
Component Suppliers
SUPPLIER
Murata Electronics North
America Inc.
WEBSITE
http://www.murata.com/en-us
Ordering Information
PART
MAX9017AEVKIT#
#RoHS
compliant.
TYPE
EV Kit
Note:
Indicate that you are using the MAX40088EVKIT when
contacting these component suppliers.
www.maximintegrated.com
Maxim Integrated
│
2
MAX9017A Evaluation Kit
TITLE: Bill of Materials
DATE: 03/22/2016
DESIGN: max9017a_evkit_a
ITEM
QTY
REF DES
Evaluates: MAX9017A, MAX9017B,
MAX9018, MAX9019, and MAX9020
(Open-Drain)
MFG PART #
MANUFACTURER
VALUE
DESCRIPTION
TEST POINT; PIN DIA=0.1IN;
TOTAL LENGTH=0.3IN; BOARD
HOLE=0.04IN; BLACK; PHOSPHOR
BRONZE WIRE SILVER PLATE
FINISH; RECOMMENDED FOR
BOARD THICKNESS=0.062IN; NOT
FOR COLD TEST
CAPACITOR; SMT (0603);
CERAMIC CHIP; 0.1UF; 25V;
TOL=10%; MODEL=C SERIES; TG=-55
DEGC TO +125 DEGC; TC=X7R
CAPACITOR; SMT (0603);
CERAMIC CHIP; 1UF; 25V; TOL=10%;
MODEL=GRM SERIES; TG=-55 DEGC
TO +125 DEGC; TC=X7R
TEST POINT; PIN DIA=0.1IN;
TOTAL LENGTH=0.3IN; BOARD
HOLE=0.04IN; WHITE; PHOSPHOR
BRONZE WIRE SILVER; NOT FOR
COLD TEST
CONNECTOR; MALE;
THROUGH HOLE; BREAKAWAY;
STRAIGHT; 2PINS; -65 DEGC TO +125
DEGC
RESISTOR; 0603; 0 OHM; 5%;
JUMPER; 0.10W; THICK FILM
TEST POINT; JUMPER; STR;
TOTAL LENGTH=0.256IN; BLACK;
INSULATION=PBT
CONTACT=PHOSPHOR BRONZE;
COPPER PLATED TIN OVERALL
IC; COMP; DUAL; PRECISION; 1.8V;
NANOPOWER COMPARATOR; WITH
REFERENCE; SOT23-8
TEST POINT; PIN DIA=0.1IN;
TOTAL LENGTH=0.3IN; BOARD
HOLE=0.04IN; RED; PHOSPHOR
BRONZE WIRE SILVER PLATE
FINISH; RECOMMENDED FOR
BOARD THICKNESS=0.062IN; NOT
FOR COLD TEST
PCB: MAX9017A
COMMENTS
MAX9017A EV Kit Bill of Materials
VAR STATUS
MAXINV
1
2
A1, A2
Pref
02-TPMINI5001-00
5001 KEYSTONE
N/A
2
1
C2
Pref
20-000U1-P6B
C1608X7R1E104K080AA
TDK
0.1UF
3
1
C3
Pref
20-0001U-P6
GRM188R71E105KA12D;
CGA3E1X7R1E105K
MURATA
1UF
4
6
INA+, INB+, INB-,
OUTA, OUTB,
REF/INA-
Pref
02-TPMINI5002-00
5002 KEYSTONE
N/A
5
3
J1-J3
Pref
01-PBC02SAAN2P-21
PBC02SAAN
SULLINS ELECTRONICS
CORP.
PBC02SAAN
6
2
R3, R4
Pref
80-0000R-27A
RC1608J000CS;
CR0603-J/-000ELF;
RC0603JR-070RL
SAMSUNG ELECTRONICS/
BOURNS/YAGEO PH
0
7
3
SU1-SU3
Pref
02-JMPFSTC02SYAN-00 STC02SYAN
SULLINS ELECTRONICS
CORP.
STC02SYAN
8
1
U1
Pref
MAX9017AEKA/V+
MAX9017AEKA/V+
MAXIM
MAX9017AEKA+
9
2
VCC, VEE
Pref
02-TPMINI5000-00
5000 KEYSTONE
N/A
10
TOTAL
1
22
Pref
EPCB9017A
MAX9017A
MAXIM
PCB
DO NOT PURCHASE(DNP)
ITEM QTY REF DES
1
1 C1
2
4 R1, R2, R5, R6
TOTAL
5
Var Status
DNP
DNP
MAXINV
N/A
N/A
MFG PART #
N/A
N/A
MANUFACTURER
N/A
N/A
VALUE
OPEN
OPEN
DESCRIPTION
COMMENTS
PACKAGE OUTLINE 0603 NON-POLAR CAPACITOR - EVKIT
PACKAGE OUTLINE 0603 RESISTOR - EVKIT
PACKOUT (These are purchased parts but not assembled on PCB and will be shipped with PCB)
ITEM QTY REF DES
MAXINV
MFG PART #
MANUFACTURER
1
1 PACKOUT
88-00711-SML 88-00711-SML
N/A
2
1 PACKOUT
87-02162-00
87-02162-00
N/A
3
1 PACKOUT
85-MAXKIT-PNK 85-MAXKIT-PNK
N/A
4
1 PACKOUT
EVINSERT
EVINSERT
N/A
5
1 PACKOUT
85-84003-006 85-84003-006
N/A
TOTAL
5
VALUE
?
?
?
?
?
DESCRIPTION
COMMENTS
BOX;SMALL BROWN 9 3/16X7X1 1/4 - PACKOUT
ESD BAG;BAG;STATIC SHIELD ZIP 4inX6in;W/ESD LOGO - PACKOUT
PINK FOAM;FOAM;ANTI-STATIC PE 12inX12inX5MM - PACKOUT
WEB INSTRUCTIONS FOR MAXIM DATA SHEET
LABEL(EV KIT BOX) - PACKOUT
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Maxim Integrated
│
3
MAX9017A Evaluation Kit
Evaluates: MAX9017A, MAX9017B,
MAX9018, MAX9019, and MAX9020
(Open-Drain)
MAX9017A EV Kit Schematic
U1
MAX9017AEKA/V+
OUTA
C2
8
7
6
5
0.1UF
C3
1UF
VCC
VCC
1
2
1
3
4
OUTA
REF/INA-
INA+
VEE
J2
1
VCC
OUTB
INB-
INB+
REF/INA-
OUTB
PBC02SAAN
J1
R5
OPEN
R4
2
PBC02SAAN
2
R1
OPEN
R3
INA+
0
INB+
R2
OPEN
R6
OPEN
1
C1
OPEN
GND
INB-
VEE
VEE
0
PBC02SAAN
J3
GND
2
MAX9017A EV Kit Schematic
www.maximintegrated.com
Maxim Integrated
│
4
MAX9017A Evaluation Kit
Evaluates: MAX9017A, MAX9017B,
MAX9018, MAX9019, and MAX9020
(Open-Drain)
MAX9017A EV Kit PCB Layout Diagrams
MAX9017A EV Kit—Top Silkscreen
MAX9017A EV Kit—Top Mask
MAX9017A EV Kit—Bottom Mask
www.maximintegrated.com
Maxim Integrated
│
5
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