MAX40056T [MAXIM]
Precision Real-Time Current-Monitoring with Fault Detection;
| 型号： | MAX40056T |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | Precision Real-Time Current-Monitoring with Fault Detection 监控 |
| 文件： | 总7页 (文件大小：659K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Click here for production status of specific part numbers.
Evaluates: MAX40056F
MAX40056T
MAX40056 Evaluation Kit
MAX40056U
General Description
Quick Start
The MAX40056 evaluation kit (EV kit) is a fully assembled
electrical demonstration kit that provides a proven design
to evaluate the MAX40056F/MAX40056T/MAX40056U
high-precision, high-voltage, bidirectional current sense
amplifier for PWM applications, such as servo motor con-
trol and solenoid drive. The MAX40056F/MAX40056T/
MAX40056U are ideal for 48V, or less BLDC, induction
motor applications (such as robotics), pick-and-place
machines, 3D prints, or other servo motor control systems.
Required Equipment
●
●
●
MAX40056 EV kit
0-60V, 3A DC Power Supply for VCM Input
+3.6V, 100mA MAX40056F/MAX40056T/
MAX40056U device DC power supply
●
+3.6V DC power supply or a voltage calibrator for
OVC/ CIP input
●
●
Electronic load capable for sinking 3A (HP6060B)
Three digital voltmeters (Agilent 34401A 61/2 digital
®
This EV kit demonstrates the MAX40056FAUA+ in an 8-pin
μMAX package, with Gain = 50V/V. For other available
pin-compatible options (MAX40056TAUA+, Gain = 20V/V,
MAX40056HAUA+, Gain = 10V/V), contact the factory.
multimeter)
Procedure
The MAX40056 EV kit is fully assembled and tested.
Follow the following steps to verify board operation:
Features
Caution: Do not turn on the power supply or the
electronic load until all the connections are complete.
● Precision Real-Time Current-Monitoring with Fault
Detection
1) Connect a +3.3V supply and ground to VDD
connector.
2) Connect the positive terminal of the +0-60V DC
power supply to the RS+ input and the negative
terminal to the GND input.
3) Set the electronic load to sink 300mA.
4) Connect the positive terminal of the electronic load
to the RS- input and the negative terminal of the
electronic load to the nearest GND input connection
on the board.
● Internal Available1.5V Reference
● -0.3V to +65V Input Common Mode Range
● -40°C to +125°C Temperature Range
● Evaluates 8-μMAX MAX40056FAUA+ Device
● Proven PCB Layout
● Fully Assembled and Tested
5) Connect the first voltmeter between the test points
Ordering Information appears at end of data sheet.
MAX40056 EV KIT PHOTO
Agilent is a registered trademark and registered service mark of
Agilent Technologies, Inc.
319-100264; Rev 1; 12/18
Evaluates: MAX40056F
MAX40056T
MAX40056 Evaluation Kit
MAX40056U
VRS+ and VRS- to measure the differential input
Theory of Operation
voltage across the inputs (V
).
SENSE
Bidirectional Operation
6) Install jumper J2 and connect the positive terminal of
the calibrator/DC power supply to OVC input. Set the
calibrator/DC power supply voltage output to 500mV.
7) Connect the second voltmeter across OUT and GND
test point to measure the MAX40056F/MAX40056T/
MAX40056U output.
8) Connect the third voltmeter across COP and GND
test point to measure over current fault status at
COP output.
The MAX40056 EV kit evaluates the MAX40056F/
MAX40056T/MAX40056U bidirectional current sense
amplifier. The output is set to the V
voltage at
REF
no load. The V
voltage can either be from inter-
REF
nal 1.5V reference voltage generated or an external
reference supplied at V input. That sets the bias
REF
voltage to V
(V) for a no-current condition. Current
REF
in the positive direction in reference to RS+ and
RS- increases the output voltage from V (V) and
REF
9) Turn on the power supplies and the calibrator and
then the electronic load.
10) Enable the electronic load.
current in the negative direction decreases the output
voltage from V (V).
REF
11) Verify that the first voltmeter displays 300mA x 50mΩ
= +15mV and the second voltmeter displays 2.25V.
12) Verify that the COP output is high (+3.3V).
13) Now change the OVC input from 500mV to 1V on
the calibrator output setting.
14) Verify that the COP output is low (~0V).
15) Turn off the electronic load and set the electronic
load to source 300mA.
Hence, the output equation becomes:
V
OUT
(V) = [(I (A) x R (Ω)) x GAIN(V/V)]
LOAD
SENSE
+ V
(V)
REF
External Reference
When choosing external reference at VREF input, it is
recommended to choose V (V) = (1/2) x V (V) and
REF
DD
the V
(V) value must not exceed absolute maximum
DD
16) Turn on the electronic load and verify that the first
voltmeter displays -15mV and the second voltmeter
displays 750mV.
ratings.
Overcurrent Fault Protection
The MAX40056 device features an integrated win-
dow comparator to monitor overcurrent condi-
tions. An overcurrent threshold voltage input is
provided to the OVC input, which monitors for overcurrent
detection in both the direction. When an overcurrent condition
occurs, the output of the window comparator goes low
indicating a fault detection.
17) Verify that the COP output is low (~0V).
18) After the functions are verified, do not forget to turn off
the electronic load, calibrator and the power supply.
Detailed Description of Hardware
The MAX40056 EV kit provides a proven design to evaluate
MAX40056F/MAX40056T/MAX40056U high-precision,
high-voltage bidirectional current sense amplifier for PWM
application. The device offers precision accuracy specifi-
The input range for OVC input is from 0.08V to MIN
(V
- 0.08, V
- 1.25).
REF
DD
cations of input offset voltage (V ) less than 10μV (max)
OS
Threshold Input Options
and gain error less than 0.2% (max).
When using an external voltage source to provide OVC
threshold to the CIP input, install Jumper J2 and remove
J1 if installed. Also make sure that the resistors R5 and
R6 are also not populated.
The device has a proprietary input stage designed to reject
high gradient PWM common mode voltage inputs and still
accurately monitors the load current across its inputs.
When using the reference voltage to provide OVC threshold
to the CIP input, remove J2 and install J1. Also install
R5 and R6 resistors to create the desired value of OVC
threshold value.
Table 1. Jumper Functions (J1 – J2)
JUMPER
LABEL
DEFAULT
POSITION
FUNCTION
V
OVC
(V) = [(V
x R )/(R + R )]
REF 6 5 6
While choosing the value of R5 and R6, make sure the
total resistance is large so that the REF output is not
OVC threshold input provided
by REF output. Install R5 and
R6 to create OVC threshold.
J1
J2
Not Installed
loaded. Recommended choice of R + R = 500kΩ.
5
6
OVC threshold input provided
by external source
Installed
Maxim Integrated
│ 2
www.maximintegrated.com
Evaluates: MAX40056F
MAX40056T
MAX40056 Evaluation Kit
MAX40056U
MAX40056 EV Kit Bill of Materials
ITEM
REF_DES
DNI/DNP
QTY
MFG PART #
MANUFACTURER
VALUE
DESCRIPTION
COMMENTS
CAPACITOR; SMT (0805);
CERAMIC CHIP; 0.01UF; 100V;
TOL=1%; TG=-55 DEGC TO +125
DEGC; TC=C0G
1
C1
-
-
1
C0805C103F1GAC
KEMET
0.01UF
CAPACITOR; SMT; 1206;
CERAMIC; 1uF; 100V; 10%; X7R; -
55degC to + 125degC
GRM31CR72A105KA01L;
C3216X7R2A105K160
2
3
C2, C6
2
1
MURATA;TDK
TDK
1UF
CAPACITOR; SMT (2220);
CERAMIC CHIP; 10UF; 100V;
TOL=20%; MODEL=C SERIES;
TG=-55 DEGC TO +125 DEGC;
TC=X7R
C3
-
CKG57NX7R2A106M500JH
C1608C0G1H100D080AA
10UF
CAPACITOR; SMT (0603);
CERAMIC CHIP; 10PF; 50V;
TOL=0.5PF; TG=-55 DEGC TO
+125 DEGC; TC=C0G
4
5
6
7
C4
-
-
-
-
1
1
TDK
10PF
CAPACITOR; SMT (0603);
CERAMIC CHIP; 20PF; 50V;
TOL=5%; MODEL=; TG=-55 DEGC
TO +125 DEGC; TC=C0G
C0603C200J5GAC;
GRM1885C1H200JA01
CL
KEMET;MURATA
TDK;TDK;MURATA
WEICO WIRE
20PF
CAPACITOR; SMT (0603);
CERAMIC CHIP; 0.01UF; 50V;
TOL=5%; TG=-55 DEGC to +125
DEGC; TC=C0G
C1608C0G1H103J;
CGA3E2C0G1H103J080AD;
GRM1885C1H103JA01
CLR
1
0.01UF
MAXIMPAD
EVK KIT PARTS; MAXIM PAD;
WIRE; NATURAL; SOLID; WEICO
WIRE; SOFT DRAWN BUS TYPE-
S; 20AWG
COP, GND, GND1-GND3,
INT/EXT_REF, OUT, OVC,
RS+, RS-, VDD, VRS+, VRS-
13
9020 BUSS
DIODE; TVS; SMB (DO-214AA);
VRM=60V; IF=6.2A
8
9
D1
D2
-
-
1
1
SMBJ60A
DIODES INCORPORATED
60V
DIODE; SCH; SILICON
SCHOTTKY RECTIFIER;SMC;
PIV=60V; IF=5A
CMSH5-60
CENTRAL SEMICONDUCTOR
CMSH5-60
CONNECTOR; MALE;
THROUGH HOLE; BREAKAWAY;
STRAIGHT THROUGH; 2PINS; -65
DEGC TO +125 DEGC
10
11
J1, J2
J3
-
-
2
1
PCC02SAAN
5-1814832-1
SULLINS
TYCO
PCC02SAAN
5-1814832-1
CONNECTOR; FEMALE;
THROUGH HOLE; CONN SOCKET
SMA STR DIE CAST PCB;
STRAIGHT; 5PINS
RES; SMT (2512); 0.05; 1%;
+/-50PPM/DEGC; 3W
12
13
R2
R3
-
-
1
1
CRA2512-FZ-R050ELF
PNM0603E5001BST5
BOURNS
0.05
RESISTOR; 0603; 5K OHM;
0.1%; 25PPM; 0.15W; THIN FILM
VISHAY DALE
5K
RC1608J000CS;
CR0603-J/-000ELF;RC0603JR-
070RL
SAMSUNG ELECTRONICS;
BOURNS;YAGEO PH
RESISTOR; 0603; 0 OHM; 5%;
JUMPER; 0.10W; THICK FILM
14
15
R7, RFILT1, RFILT2
RS+1, RS-1
-
-
3
2
0
CONNECTOR; FEMALE;
PANELMOUNT; NON-INSULATED
RECESSED HEAD BANANA JACK;
STRAIGHT THROUGH; 1PIN
6095 KEYSTONE
6095
EVKIT PART - IC; MAX40056;
BI-DIRECTIONAL CURRENT-
SENSE AMPLIFIER; PACKAGE
OUTLINE: 21-0036; PACKAGE
CODE: U8+4
16
U1
-
-
1
MAX40056FAUA+
MAXIM
MAX40056FAUA+
17
18
PCB
RL
1
0
MAX40056
MAXIM
XICON
PCB
10K
PCB:MAX40056
-
RESISTOR, 0603, 10K OHM,
5%, 200PPM, 1/16W, THICK FILM
DNP
301-10K-RC
PACKAGE OUTLINE 0603
NON-POLAR CAPACITOR
19
C5
DNP
DNP
0
N/A
N/A
N/A
N/A
OPEN
OPEN
PACKAGE OUTLINE 0603
RESISTOR
20
R1, R4-R6
0
TOTAL
34
Ordering Information
PART
TYPE
EV Kit
MAX40056EVKIT#
#Denotes a RoHS-compliant device that may include lead(Pb)
that is exempt under the RoHS requirements.
Maxim Integrated
│ 3
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Evaluates: MAX40056F
MAX40056T
MAX40056 Evaluation Kit
MAX40056U
MAX40056 EV Kit Schematic
RS+
RS-
R2
0.05
RS+
D2
CMSH5-60
RS-
D1
60V
6095
6095
R1
OPEN
C5
R4
OPEN
OPEN
VRS+
COP
VRS-
U1
MAX40056FAUA+
J2
1
2
3
4
8
7
6
5
RS+
COP
VDD
OUT
RS-
CIP
OVC
1
2
GND
REF
PCC02SAAN
R6
C4
10PF
R3
5K
0
R7
GND
OPEN
GND
GND
J1
R5
1
2
OPEN
PCC02SAAN
VDD
C3
10UF
C2
1UF
C1
0.01UF
INT/EXT_REF
OUT
CLR
0.01UF
C6
1UF
J3
5-1814832-1
GND
RL
CL
20PF
1
1
10K
OPEN
5
4 3 2
Maxim Integrated
│ 4
www.maximintegrated.com
Evaluates: MAX40056F
MAX40056T
MAX40056 Evaluation Kit
MAX40056U
MAX40056 EV Kit PCB Layout Diagrams
MAX40056 EV Kit PCB Layout Diagrams—Assembly Top
Maxim Integrated
│ 5
www.maximintegrated.com
Evaluates: MAX40056F
MAX40056T
MAX40056 Evaluation Kit
MAX40056U
MAX40056 EV Kit PCB Layout Diagrams (continued)
1”
1”
MAX40056 EV Kit PCB Layout Diagrams—Top Silkscreen
MAX40056 EV Kit PCB Layout Diagrams—Bottom
1”
1”
MAX40056 EV Kit PCB Layout Diagrams—Top
MAX40056 EV Kit PCB Layout Diagrams—Bottom Silkscreen
Maxim Integrated
│ 6
www.maximintegrated.com
Evaluates: MAX40056F
MAX40056T
MAX40056 Evaluation Kit
MAX40056U
Revision History
REVISION REVISION
PAGES
CHANGED
DESCRIPTION
NUMBER
DATE
0
10/18
12/18
Initial release
Updated data sheet title, part number, and Ordering Information
—
1
1–7
For pricing, delivery, and ordering information, please visit Maxim Integrated’s online storefront at https://www.maximintegrated.com/en/storefront/storefront.html.
Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses
are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time.
©
Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.
2018 Maxim Integrated Products, Inc.
│ 7
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