NXP RDI7014DT1 TPL Evaluation Board User Manual

User Manual for NXP models including: BMI7014TA1, RDI7014DT1 TPL Evaluation Board, RDI7014DT1, TPL Evaluation Board, Evaluation Board, Board

UM12140, RDI7014DT1 featuring the BMI7014TA1 battery cell controller IC - user manual

RDI7014DT1, hardware, evaluation, BMI7014TA1, battery-cell controller

"RDI7014DT1, hardware, evaluation, BMI7014TA1, battery-cell controller"

NXP B.V.

UM12140, RDI7014DT1 User Manual

Getting Started with the RDI7014DT1 | NXP Semiconductors

UM12140, RDI7014DT1 featuring the BMI7014TA1 battery cell controller IC

RDI7014DT1 | TPL evaluation board for BMI7014TA1 | NXP Semiconductors

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UM12140

UM12140
RDI7014DT1 featuring the BMI7014TA1 battery cell controller IC
Rev. 1 -- 12 August 2024

User manual

Document information

Information

Content

Keywords

RDI7014DT1, hardware, evaluation, BMI7014TA1, battery-cell controller

Abstract

The RDI7014DT1 serves as a hardware evaluation tool in support of NXP's BMI7014TA1 device.

NXP Semiconductors
1 Introduction

UM12140
RDI7014DT1 featuring the BMI7014TA1 battery cell controller IC

Figure 1.RDI7014DTI
NXP analog product development boards provide an easy-to-use platform for evaluating NXP products. These development boards support a range of analog, mixed-signal, and power solutions. These boards incorporate monolithic integrated circuits (IC) and system-in-package devices that use proven high-volume technology. NXP products offer long battery life, a small form factor, reduced component counts, low cost, and excellent performance in powering state-of-the-art systems.

UM12140
User manual

All information provided in this document is subject to legal disclaimers.
Rev. 1 -- 12 August 2024

NXP Semiconductors

UM12140
RDI7014DT1 featuring the BMI7014TA1 battery cell controller IC

Important notice
IMPORTANT NOTICE
For engineering development or evaluation purposes only
NXP provides the product under the following conditions: This evaluation kit is for use of ENGINEERING DEVELOPMENT OR EVALUATION PURPOSES ONLY. It is provided as a sample IC pre-soldered to a printed-circuit board to make it easier to access inputs, outputs and supply terminals. This evaluation board may be used with any development system or other source of I/O signals by connecting it to the host MCU computer board via off-theshelf cables. This evaluation board is not a Reference Design and is not intended to represent a final design recommendation for any particular application. Final device in an application heavily depends on proper printed-circuit board layout and heat sinking design as well as attention to supply filtering, transient suppression, and I/O signal quality. The product provided may not be complete in terms of required design, marketing, and or manufacturing related protective considerations, including product safety measures typically found in the end device incorporating the product. Due to the open construction of the product, it is the responsibility of the user to take all appropriate precautions for electric discharge. In order to minimize risks associated with the customers' applications, adequate design and operating safeguards must be provided by the customer to minimize inherent or procedural hazards. For any safety concerns, contact NXP sales and technical support services.

UM12140
User manual

All information provided in this document is subject to legal disclaimers.
Rev. 1 -- 12 August 2024

NXP Semiconductors

UM12140
RDI7014DT1 featuring the BMI7014TA1 battery cell controller IC

2 Finding the kit resources and information on the NXP website
NXP Semiconductors provides online resources for this evaluation board and its supported device(s) on http:// www.nxp.com.
The information page for the RDI7014DT1 evaluation board is at http://www.nxp.com/RDI7014DT1. The information page provides overview information, documentation, software and tools, parametrics, ordering information and a Getting Started tab. The Getting Started tab provides quick-reference information applicable to using the RDI7014DT1 evaluation board, including the downloadable assets referenced in this document.

UM12140
User manual

All information provided in this document is subject to legal disclaimers.
Rev. 1 -- 12 August 2024

NXP Semiconductors

UM12140
RDI7014DT1 featuring the BMI7014TA1 battery cell controller IC

3 Getting ready
The tool summary page for RDI7014DT1 is nxp.com/RDI7014DT1. The Overview tab on this page provides an overview of the device, a list of device features, a description of the kit contents, links to supported devices, and a Get Started section.
The Get Started section provides information applicable to using the RDI7014DT1.
1. Go to nxp.com/RDI7014DT1. 2. On the Overview tab, locate the Jump To navigation feature on the left side of the window. 3. Select the Get Started link. 4. Review each entry in the Get Started section. 5. Download an entry by clicking the linked title.
After reviewing the Overview tab, visit the other related tabs for additional information:
· Documentation: Download current documentation. · Software and Tools: Download current hardware and software tools. · Buy/Parametrics: Purchase the product and view the product parametrics. After downloading the files, review each file, including the user guide, which includes setup instructions. If applicable, the bill of materials (BOM), supporting schematics, and layout are available via Secure Files in NXP[5].
3.1 Kit contents
· Assembled and tested evaluation board/module in an antistatic bag · Cell-terminal cable · TPL cable · Quick Start guide
3.2 Additional hardware
· A 7-cell to 14-cell battery pack or a battery pack emulator, such as BATT-14CEMULATOR

UM12140
User manual

All information provided in this document is subject to legal disclaimers.
Rev. 1 -- 12 August 2024

NXP Semiconductors

UM12140
RDI7014DT1 featuring the BMI7014TA1 battery cell controller IC

4 Getting to know the hardware
4.1 Board overview
The RDI7014DT1 serves as a hardware evaluation tool that supports NXP's BMI7014TA1 device. The BMI7014TA1 is a battery-cell controller that monitors up to 14 Li-ion battery cells. It is designed for use in industrial applications. The device performs analog-to-digital conversion (ADC) on the differential cell voltages. It is also capable of battery temperature measurements. The RDI7014DT1 is an ideal platform for rapid prototyping of BMI7014TA1-based applications that involve voltage and temperature sensing.
The RDI7014DT1 includes a transformer enabling communication in a high-speed isolated communication network. The information is digitally transmitted to a microcontroller for processing. The evaluation board can be used with a transceiver physical layer (TPL) transformer driver (MC33664) to convert microcontroller unit serial peripheral interface (MCU SPI) data bits to pulse-bit information for the BMI7014TA1 and vice versa.
4.2 Board features
The main features of the RDI7014DT1 are as follows:
· Daisy-chain device connection · LED indicator for operation mode · Cell-balancing resistors · Transformer isolation · Cell-sense input with RC filter · GPIO: digital I/O, wake-up inputs, convert trigger inputs, ratiometric analog inputs, analog inputs with absolute
measurements

UM12140
User manual

All information provided in this document is subject to legal disclaimers.
Rev. 1 -- 12 August 2024

NXP Semiconductors 4.3 Block diagram

UM12140
RDI7014DT1 featuring the BMI7014TA1 battery cell controller IC

NTC[0...6]

TEMP INT

GPIO PHY

RDTX_OUT +

Battery Cell

Isolation

RDTX_OUT -

Transformer

I2C

Controller

TPL

PHY BMI7014TA1 PHY 64LQFP

RDTX_IN + RDTX_IN -

Isolation Transformer

+ -

COMM_OUT Connector
COMM_IN Connector

GND/VBAT

Cell Balancing Output
[CB_1...CB_14]

Voltage Sense Input
[CT_REF...CT_14]

Connector Battery/Cells
Figure 2.Block diagram

aaa- 056534

4.4 Device features
The BMI7014TA1 is a SMARTMOS Li-ion battery-cell controller IC family designed for industrial applications, such as energy storage systems (ESS) and uninterruptible power supply (UPS) systems.
The device performs ADC conversions of the differential cell voltages and battery temperature measurements.
The information is transmitted to the MCU using one of the microcontroller interfaces (SPI or transformer physical layer (TPL)) of the IC.
The BMI7014TA1 supports the following functions:

UM12140
User manual

All information provided in this document is subject to legal disclaimers.
Rev. 1 -- 12 August 2024

NXP Semiconductors

UM12140
RDI7014DT1 featuring the BMI7014TA1 battery cell controller IC

Table 1.BMI7014TA1 device features

Device

Description

BMI7014TA1

Battery-cell controller

Features
· 9.6 V VPWR 61.6 V operation, 75 V transient · Seven cells to 14 cells management · Isolated 2.0 Mbps differential communication or 4.0 Mbps SPI · Addressable on initialization · Bidirectional transceiver to support up to 63 nodes in a daisy chain · 0.8 mV maximum total voltage measurement error · Averaging of cell-voltage measurements · Total stack voltage measurement · Seven GPIO/temperature sensor inputs · 5.0 V at 5.0 mA reference supply output · Automatic over/undervoltage and temperature detection routable to fault pin · Integrated Sleep mode over/undervoltage and temperature monitoring · Onboard 300 mA passive cell balancing with diagnostics · Hot-plug capable · Detection of internal and external faults, as open lines, shorts, and leakages · Qualified in compliance with AECQ-100

4.5 Board description
The RDI7014DT1 allows the user to exercise all the functions of the BMI7014TA1 battery controller cell.

Figure 3.BMI7014TA1 functions
4.6 VCOM LED
The VCOM LED is on the board as shown in Figure 3.
The VCOM LED indicates when the device is in Normal mode. Upon reset, the BMI7014TA1 enters Normal mode (VCOM turns on). If there is no activity on the bus after a timeout period of 60 seconds, the device enters Low-power idle mode (VCOM turns off). Once the device is initialized, if no communication occurs on the TPL bus after one second, the device resets and the LED turns off (VCOM off). Depending on the device settings, the VCOM LED may flash 0.1...8 seconds during cyclic acquisition.

UM12140
User manual

All information provided in this document is subject to legal disclaimers.
Rev. 1 -- 12 August 2024

NXP Semiconductors

UM12140
RDI7014DT1 featuring the BMI7014TA1 battery cell controller IC

4.7 Connectors

Figure 3 shows the location of the connectors on the board. Table 2, Table 3, and Table 4 list the pinouts for each connector.

Table 2.Cell connector (J1) Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26

Connection GND NTC3 GND NTC2 GND NTC1 GND NTC0 GND GND CELL_1 CELL_REF CELL_3 CELL_2 CELL_5 CELL_4 CELL_7 CELL_6 CELL_9 CELL_8 CELL_11 CELL_10 CELL_13 CELL_12 VBAT CELL_14

Description NTC connection (-) NTC connection (+) NTC connection (-) NTC connection (+) NTC connection (-) NTC connection (+) NTC connection (-) NTC connection (+) negative battery negative battery Battery cell1P connection Battery cell1M connection Battery cell3P connection Battery cell2P connection Battery cell5P connection Battery cell4P connection Battery cell7P connection Battery cell6P connection Battery cell9P connection Battery cell8P connection Battery cell11P connection Battery cell10P connection Battery cell13P connection Battery cell12P connection positive battery Battery cell14P connection

Table 3.COMM connector (J2)

Pin #

Name

Description

OUT+

Receive/transmit output positive

OUT

Receive/transmit output negative

UM12140
User manual

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Rev. 1 -- 12 August 2024

NXP Semiconductors

UM12140
RDI7014DT1 featuring the BMI7014TA1 battery cell controller IC

Table 4.Table 4. COMM connector (J3)

Pin #

Name

Description

IN+

Receive/transmit input positive

Receive/transmit input negative

4.8 Temperature measurement
The RDI7014DT1 offers seven GPIOs [GPIO_0...GPIO_6] for measuring external temperature with onboard or offboard NTCs. Four offboard negative temperature coefficient (NTC) connections are available on the J1 connector.
4.9 Cell-terminal voltage measurement
The differential measurement of each cell-terminal input is designed to function with an external antialiasing filter.
4.10 Bus-terminal communication
The transformers isolate communication between the BMI7014TA1 and the pack controller and between each BMI7014TA1. They are protected against ESD. There are significant advantages to using transformers for isolation and communication:
· High degree of voltage isolation · Communication rates of 2.0 MHz with low-radiated emissions · Ability to force the secondary signals to be true differential-reducing radiated emissions · Ability to loop the network back to the pack controller Detailed schematic, component selection, and layout recommendations can be obtained from the NXP DocStore (NDA required) [5].

UM12140
User manual

All information provided in this document is subject to legal disclaimers.
Rev. 1 -- 12 August 2024

NXP Semiconductors

UM12140
RDI7014DT1 featuring the BMI7014TA1 battery cell controller IC

5 Accessory transceiver board
The RDI7014DT1 kit is designed for use with the FRDMDUAL33664EVB in high-voltage, isolated applications that provide a SPI-to-high-speed isolated communication interface. The FRDMDUAL33664EVB includes two MC33664 isolated network, high-speed transceivers allowing loopback connection. MCU SPI data bits are directly converted to pulse-bit information.

Figure 4.FRDMDUAL33664EVB

UM12140
User manual

All information provided in this document is subject to legal disclaimers.
Rev. 1 -- 12 August 2024

NXP Semiconductors

UM12140
RDI7014DT1 featuring the BMI7014TA1 battery cell controller IC

6 Configuring the hardware
6.1 Battery-emulator connection
A minimum of seven cells and a maximum of 14 cells can be monitored. NXP provides a 14-cell battery emulator board, BATT-14CEMULATOR. This board provides an intuitive way to change the voltage across any of the 14 cells of an emulated battery pack and four voltage outputs to emulate four external NTCs. The emulator board can be connected to the RDI7014DT1 connector J1 using the provided supply cable. See Figure 5.

Figure 5.Battery-emulator connection

UM12140
User manual

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Rev. 1 -- 12 August 2024

NXP Semiconductors

UM12140
RDI7014DT1 featuring the BMI7014TA1 battery cell controller IC

6.2 TPL communication connection
In a high-voltage, isolated application with a daisy-chain configuration, up to 63 RDI7014DT1 boards may be connected. The TPL connections use the COMM connectors (J2, J3).

Figure 6.FRDMDUAL33664EVB board setup

UM12140
User manual

All information provided in this document is subject to legal disclaimers.
Rev. 1 -- 12 August 2024

NXP Semiconductors

UM12140
RDI7014DT1 featuring the BMI7014TA1 battery cell controller IC

7 Available accessories

Note: NXP does not assume liability, endorse, or warrant components from external manufacturers referenced in circuit drawings or tables. While NXP offers component recommendations in this configuration, it is the customer's responsibility to validate the application.

Table 5.Bill of materials Part number BATT-14CEMULATOR FRDMDUAL33664EVB

Description 14-cell slider battery pack emulator kit with shunt for current sense EVB for MC33664ATL isolated network high-speed transceiver

UM12140
User manual

All information provided in this document is subject to legal disclaimers.
Rev. 1 -- 12 August 2024

NXP Semiconductors

UM12140
RDI7014DT1 featuring the BMI7014TA1 battery cell controller IC

8 References
1. Board summary page -- nxp.com/RDI7014DT1 2. Product summary page -- nxp.com/BATTERY-CELL-CONTROLLERS 3. Tool summary page -- nxp.com/FRDMDUAL33664EVB 4. Tool summary page for battery emulators -- nxp.com/BATT-14CEMULATOR 5. Secure files on NXP.com -- docstore.nxp.com

UM12140
User manual

All information provided in this document is subject to legal disclaimers.
Rev. 1 -- 12 August 2024

NXP Semiconductors

UM12140
RDI7014DT1 featuring the BMI7014TA1 battery cell controller IC

9 Revision history

Table 6.Revision history Document ID
UM12140 v.1.0

Release date 12 August 2024

Description Initial version

UM12140
User manual

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Rev. 1 -- 12 August 2024

NXP Semiconductors

UM12140
RDI7014DT1 featuring the BMI7014TA1 battery cell controller IC

Legal information
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UM12140
User manual

All information provided in this document is subject to legal disclaimers.
Rev. 1 -- 12 August 2024

NXP Semiconductors

UM12140
RDI7014DT1 featuring the BMI7014TA1 battery cell controller IC

Tables

Tab. 1. Tab. 2. Tab. 3.

BMI7014TA1 device features ............................ 8 Cell connector (J1) ............................................9 COMM connector (J2) .......................................9

Tab. 4. Tab. 5. Tab. 6.

Table 4. COMM connector (J3) ....................... 10 Bill of materials ................................................14 Revision history ...............................................16

UM12140
User manual

All information provided in this document is subject to legal disclaimers.
Rev. 1 -- 12 August 2024

NXP Semiconductors

UM12140
RDI7014DT1 featuring the BMI7014TA1 battery cell controller IC

Figures

Fig. 1. Fig. 2. Fig. 3.

RDI7014DTI .......................................................2 Block diagram ................................................... 7 BMI7014TA1 functions ...................................... 8

Fig. 4. Fig. 5. Fig. 6.

FRDMDUAL33664EVB ................................... 11 Battery-emulator connection ........................... 12 FRDMDUAL33664EVB board setup ............... 13

UM12140
User manual

All information provided in this document is subject to legal disclaimers.
Rev. 1 -- 12 August 2024

NXP Semiconductors

UM12140
RDI7014DT1 featuring the BMI7014TA1 battery cell controller IC

Contents

Introduction ...................................................... 2

Finding the kit resources and

information on the NXP website .................... 4

Getting ready ................................................... 5

3.1

Kit contents ........................................................5

3.2

Additional hardware ........................................... 5

Getting to know the hardware ........................ 6

4.1

Board overview ..................................................6

4.2

Board features ................................................... 6

4.3

Block diagram ....................................................7

4.4

Device features ..................................................7

4.5

Board description ...............................................8

4.6

VCOM LED ........................................................8

4.7

Connectors .........................................................9

4.8

Temperature measurement ..............................10

4.9

Cell-terminal voltage measurement ................. 10

4.10

Bus-terminal communication ............................10

Accessory transceiver board ....................... 11

Configuring the hardware ............................. 12

6.1

Battery-emulator connection ............................ 12

6.2

TPL communication connection .......................13

Available accessories ....................................14

References ......................................................15

Revision history .............................................16

Legal information ...........................................17

Please be aware that important notices concerning this document and the product(s) described herein, have been included in section 'Legal information'.

References

Apache FOP Version 2.6