STEVAL-DIGAFEV1 Evaluation Board for TSC1641 User Manual
- June 12, 2024
- ST
Table of Contents
UM3202
User manual
Getting started with the STEVAL-DIGAFEV1 evaluation board for the TSC1641
Introduction
The STEVAL-DIGAFEV1 allows to evaluate the measurement performance and
features of the TSC1641, designed to measure current, voltage and power.
The board can accept external voltage and current to measure and evaluate the
conversion performance of the TSC1641 conversion performance, based on its
Delta-Sigma (ΔΣ) modulators.
Thanks to a led on the board, it is easy to monitor if the alert pin is
active.
The STEVAL-DIGAFEV1 can be supplied in standalone mode. It can also be
connected to a NUCLEO-H503RB development board that hosts an STM32
microcontroller, allowing further signal processing and communication with the
PC.
Getting started
1.1 Features
- 16 bit dual channel for current, voltage, and power monitoring
- Temperature monitoring
- Simple digital connection with I²C up to 1MHz and compatible with MIPI I3C up to 12.5MHz
- From 128µs to 32.768ms total conversion time
- 2.7 to 3.6 V power supply
- Alert signals generated in case of over/under voltage, over/under current, overpower or over temperature
- Load voltage sensing from 0 to 60 V
1.2 Main component
1.2.1 TSC1641
The TSC1641 is a high precision current, voltage, power, and temperature
monitoring analog front-end (AFE). It monitors current into a shunt resistor
and load voltage up to 60 V in a synchronized way.
The current measurement can be high-side, low-side and bidirectional.
The device integrates high precision 16-bit dual channel ADC with a
programmable conversion time from 128 µs to 32.7 ms.
The digital bus interface is flexible from an I²C/SMbus 1 MHz data rate to an
MIPI I3C 12.5 MHz data rate. This allows connectivity to most of the recent
STM32 products.
How to use the board
2.1 Standalone
The STEVAL-DIGAFEV1 can be used directly with your testing device or I2 C/I3C
controller.
Step 1. Connect ground and supply voltage
On the CN1 connector, connect your supply voltage according to the board
serigraphy.
Step 2. Connect the I2 C/I3C bus
On connector CN2, the two top connections are for SDA (data) and SCL (clock).
Connections are clearly labeled in the serigraphy.
I²C
I²C communication bus requires pull-up resistors. The STEVAL-DIGAFEV1 has two
4.7k ohm pull-up resistors on SDA and SCL lines.
These pull-up resistors can be connected thanks to JP_SDA and JP_SDL jumpers.
It is also needed to give to the TSC1641 a static address by changing the with the A0/A1 value thanks to JP_A0 and JP_A1 jumpers.
Table 1. Table of static addresses and I3C PIDs
A1| A0| Target address (binary)| Target address (h)|
Provisional ID (PID) value (h)
---|---|---|---|---
GND| GND| 1000000| 40| 0208020A0001
GND| VS| 1000001| 41| 0208020A1001
VS| GND| 1000010| 42| 0208020A2001
VS| VS| 1000011| 43| 0208020A3001
I3C
I3C communications do not require pull-up resistors, hence JP_SDA and JP_SDL
jumpers must be unplugged.
The maximum communication speeds are detailed table for I²C & I3C speeds.
Table 2. Table for I²C & I3C speeds
| Communication type | Speed |
|---|---|
| I²C | 1 MHz |
| I3C | 12.5 MHz |
Step 3. Connect load and Vload power to supply
For high-side measurement, connect your power supply (the vload to measure) to
the J1 connector, and the load to the J2 connector.
2.2 With a NUCLEO-STM32
To use the board, follow below procedure:
Step 1. Plug the STEVAL-DIGAFEV1
The STEVAL-DIGAFEV1 is compatible with the wide majority of Nucleon board
thanks to its Arduino pinout.
Connecting the STEVAL-DIGAFEV1 to a nucleon make it supplied by the 3.3V of
the nucleon board.
For a better interconnection, it is better to use the NUCLEO-H503RB which
support I3C communications.
Table 3. Table for the connection to the NUCLEO-H503RB
| NUCLEO-H503RB | STEVAL-DIGAFEV1 SPI pin |
|---|---|
| PB8 | SCLK |
| PB9 | SDA (data) |
| PA10 | ALERT/CVRDY |
Communication with the TSC1641
Option A: use the STSW-DIGAFEV1 GUI
The STEVAL-DIGAFEV1 can be used with the STSW-DIGAFEV1GUI. It is necessary to
program the nucleo-64 H503RB with the STSW-DIGAFEV1FW to use it.
The STSW-DIGAFEV1FW runs on an STM32 Nucleo-64 development board NUCLEO-
H503RB. It communicates with the TSC1641 of the STEVAL-DIGAFEV1 through the I2
C and I3C protocols.
The STSW-DIGAFEV1GUI allows the user to write configuration registers, monitor
current, voltage, and power and plot data on a graph. It is also a tool to
save values measured by the TSC1641 in a .csv file.
For more information on the STSW-DIGAFEV1GUI, go to the relevant ST web page.
Option B: use the STEVAL-DIGAFEV1 directly with your test solution
The STEVAL-DIGAFEV1 can be plugged directly to your solution.
The I2 C/I3C communication to access the TSC1641 registers is shown in the
table:
Table 4. Map register of the TSC1641
Pointer address (hex)| Register name| Type| Default
value| Reset after POR| Reset after Shutdown mode| Reset after
Idle mode| Reset after RST
---|---|---|---|---|---|---|---
00h| Configuration register| R/W| 0037h| yes| no| no| yes
01h| Shunt voltage register| R| 0000h| yes| no| no| yes
02h| Load voltage resister| R| 0000h| yes| no| no| yes
03h| DC power register| R| 0000h| yes| no| no| yes
04h| Current register| R| 0000h| yes| no| no| yes
05h| Temperature register| R| 8000 h| yes| no| no| yes
06h| Mask register| R/W| 0000h| yes| no| no| yes
07h| Flags register| R| 0000h| yes| no| no| yes
08h| Rshunt register| R/W| 0000h| yes| no| no| no
09h| SOL alert limit register| R/W| 0000h| yes| no| no| no
0Ah| SUL alert limit register| R/W| 0000h| yes| no| no| no
0Bh| LOL alert limit register| R/W| 0000h| yes| no| no| no
0Ch| LUL alert limit register| R/W| 0000h| yes| no| no| no
0Dh| POL alert limit register| R/W| 0000h| yes| no| no| no
0Eh| TOL alert limit register| R/W| 0000h| yes| no| no| no
FEh| Manufacturin g id| R| 0006h| yes| no| no| no
FFh| DiE ID register| R| 1000 h| yes| no| no| no
Precautions for use
The board is not immune to the disturbance generated from intense radiant sources, according to EN IEC 61000-4-3. During the radiated immunity testing, the board obtained level B, meaning that the board was not damaged during the test, but showed a performance degradation of over 2% in voltage and current measurement.
Schematic diagrams
Bill of materials
Table 5. STEVAL-DIGAFEV1 bill of materials
Item| Q. ty| Ref.| Part/value| Description|
Manufacturer| Order code
---|---|---|---|---|---|---
1| 1| C1| 1uF| Ceramic capacitors| TDK| CGA3E3X5R1H105K080AB
2| 1| C2| 100nF| Ceramic capacitors| TDK| C1608X5R1H104K080AA
3| 0| C3, C5| 100pF| Ceramic capacitors| MURATA| GCM1885C2A101JA16D
2| 1| C4| 100nF| Ceramic capacitors| TDK| C1608X5R1H104K080AA
4| 0| C7| 10µF| Ceramic capacitors| MURATA| GRM21BR6YA106KE43L
5| 1| CN1| SIP 1X8 FEMALE| Connector header| AMP – TE CONNECTIVIT Y| 826629-8
6| 1| CN2| SIP 1X10 FEMALE| Connector header| AMP – TE CONNECTIVIT Y|
1-826629-0
7| 1| CN3| SIP 1X6 FEMALE| Connector header| AMP – TE CONNECTIVIT Y| 826629-6
8| 1| CN4| SIP 1X8 FEMALE| Connector header| AMP – TE CONNECTIVIT Y| 826629-8
9| 1| D1| RED COLOR| LED| WURTH ELECTRONIC| 150080RS75000
10| 2| J1, J2| HEADER| Connector – terminal Block| BUCHANAN – TE CONNECTIVIT
Y| 282825-2
11| 2| JM1, JM2| PLUG| Connector – terminal Block| BUCHANAN – TE CONNECTIVIT
Y| 796634-2
12| 2| JP_A0, JP_A1| SIP 1X3 MALE| Connector header| WURTH ELEKTRONIK|
61300311121
13| 2| JP_SCL, JP_SDA| SIP 1X2 MALE| Connector header| WURTH ELEKTRONIK|
61300211121
14| 4| JU_A0, JU_A1, JU_SCL, JU_SDA| BLACK COLOR| Jumper| WURTH ELEKTRONIK|
609002115121
15| 2| R1, R2| 4K7| Resistor| VISHAY / DALE| CRCW06034K70FKEC
16| 1| R3| 560R| Resistor| VISHAY / DALE| CRCW0603560RFKEA
17| 4| R4, R5, R7, R8| 0R| Resistor| VISHAY / DALE| RCA06030000ZSEA
18| 1| R6| 5mR| Resistor – Kelvin shunt| OHMITE| FC4L64R005FER
19| 2| SB5, SB6| 0R| Resistor| PANASONIC| ERJPA3F6800V
20| 1| TP01| GREEN COLOR| Eastpoint| Any|
21| 1| TP04| BLACK COLOR| Eastpoint| Any|
22| 1| U1| TSC1641| Digital Current Sense AFE, with I²C / SMBus and MIPI I3C
compatible interface|
ST
| TSC1641
Board versions
Table 6. STEVAL-DIGAFEV1 versions
| PCB version | Schematic diagrams | Bill of materials |
|---|---|---|
| STEVAL$DIGAFEV1A (1) | STEVAL$DIGAFEV1A schematic diagrams | STEVAL$DIGAFEV1A |
bill of materials
- This code identifies the STEVAL-DIGAFEV1 evaluation board first version. The STEVAL$DIGAFEV1A code is printed on the board.
Regulatory compliance information
Notice for US Federal Communication Commission (FCC)
For evaluation only; not FCC approved for resale
FCC NOTICE – This kit is designed to allow:
- Product developers to evaluate electronic components, circuitry, or software associated with the kit to determine whether to incorporate such items in a finished product and
- Software developers to write software applications for use with the end product.
This kit is not a finished product and when assembled may not be resold or
otherwise marketed unless all required FCC equipment authorizations are first
obtained. Operation is subject to the condition that this product not cause
harmful interference to licensed radio stations and that this product accept
harmful interference. Unless the assembled kit is designed to operate under
part 15, part 18 or part 95 of this chapter, the operator of the kit must
operate under the authority of an FCC license holder or must secure an
experimental authorization under part 5 of this chapter 3.1.2.
Notice for Innovation, Science and Economic Development Canada (ISED)
For evaluation purposes only. This kit generates, uses, and can radiate radio
frequency energy and has not been tested for compliance with the limits of
computing devices pursuant to Industry Canada (IC) rules.
Notice for the European Union
This device is in conformity with the essential requirements of the Directive
2014/30/EU (EMC) and of the Directive 2015/863/EU (RoHS).
Notice for the United Kingdom
This device is in compliance with the UK Electromagnetic Compatibility
Regulations 2016 (UK S.I. 2016 No. 1091) and with the Restriction of the Use
of Certain Hazardous Substances in Electrical and Electronic Equipment
Regulations 2012 (UK S.I. 2012 No. 3032).
Revision history
Table 7. Document revision history
| Date | Revision | Changes |
|---|---|---|
| 03-Aug-2023 | 1 | Initial release. |
List of tables
Table 1. Table of static addresses and I3C PIDs……………………………………………..5
Table 2. Table for I²C & I3C speeds …………………………………………………….5
Table 3. Table for the connection to the NUCLEO-H503RB ………………………………………6
Table 4. Map register of the TSC1641……………………………………………………8
Table 5. STEVAL-DIGAFEV1 bill of materials……………………………………………… 11
Table 6. STEVAL-DIGAFEV1 versions …………………………………………………. 12
Table 7. Document revision history ……………………………………………………. 14
List of figures
Figure 1. STEVAL-DIGAFEV1 reference design kit …………………………………………..1
Figure 2. CN1 connector for 3.3V power supply …………………………………………….3
Figure 3. CN2 connector for I2 C/I3C connection …………………………………………….4
Figure 4. Jumpers to connect SDA and SCL pull-up resistors …………………………………….4
Figure 5. Jumpers to set I²C static address ……………………………………………….5
Figure 6. J1 and J2 connectors for LOAD connection …………………………………………5
Figure 7. STSW-DIGAFEV1GUI graphical user interface ……………………………………….7
Figure 8. STEVAL-DIGAFEV1 circuit schematic …………………………………………… 10
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Information in this document supersedes and replaces information previously
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© 2023 STMicroelectronics – All rights reserved
UM3202 – Rev 1
Documents / Resources
| ST
STEVAL-DIGAFEV1 Evaluation Board for
TSC1641
[pdf] User Manual
TSC1641, STEVAL-DIGAFEV1 Evaluation Board for TSC1641, STEVAL-DIGAFEV1,
Evaluation Board for TSC1641, STEVAL-DIGAFEV1 Evaluation Board, Evaluation
Board, Board
---|---
References
- NUCLEO-H503RB - STM32 Nucleo-64 development board with STM32H503RBT6 MCU, supports Arduino and ST Morpho connectivity - STMicroelectronics
- STEVAL-DIGAFEV1 - Evaluation board for the TSC1641, 16-bit, high precision current and power monitor with MIPI I3C/I2C interface - STMicroelectronics
- TSC1641 - 60V, 16-bit, High precision, I3C/I2C, digital current/voltage/power/temperature Monitor - STMicroelectronics
- STEVAL-DIGAFEV1 - Evaluation board for the TSC1641, 16-bit, high precision current and power monitor with MIPI I3C/I2C interface - STMicroelectronics
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