Getting Started with the RD33774PDSTEVB Evaluation Board

Last Modified: Apr 17, 2024Supports HVBMS | Centralized Cell Monitoring Unit (CMU)

Contents of this document

  • 1

    Out of the Box

  • 2

    Get Hardware

  • 3

    Configure Hardware

Purchase your HVBMS | Centralized Cell Monitoring Unit (CMU)

Contents of this document

1. Out of the Box

The NXP analog product development boards provide an easy-to-use platform for evaluating NXP products. The boards support a range of analog, mixed-signal and power solutions. They incorporate monolithic integrated circuits and system-in-package devices that use proven high-volume technology. NXP products offer longer battery life, a smaller form factor, reduced component counts, lower cost and improved performance in powering state-of-the-art systems.

This page will guide the user through the process of setting up and using the RD33774PDSTEVB board.

1.1 Kit Contents and Packing List

  • Assembled and tested evaluation board/module in antistatic bag
  • Three cell terminal cables
  • Transformer physical layer (TPL) cable

1.2 Additional Hardware

In addition to the kit contents, the following hardware is necessary or beneficial when working with this kit:

  • A 4-cell to 18-cell battery pack or a battery pack emulator, such as BATT-18EMULATOR
  • A TPL communication system. If a user-specific system is not available, the evaluation setup or the 800 V HVBMS reference design can be used
    • The 800 V HVBMS reference design consists of the HVBMS battery management unit (RD-K358BMU) and the 800 V HVBMS battery junction box (RD772BJBTPL8EVB). For the 800 V HVBMS reference design, a graphical user interface (GUI) based on FreeMASTER is available
    • The evaluation setup consists of the FRDMDUALK3364EVB (EVB for MC33664A) in combination with the S32K3X4EVB-T172 (S32K3X4 EVB)
    • For the evaluation setup, a graphical user interface, EvalGUI 7, is available in Secure Files at this link: MC33775A Evaluation GUI V7

1.3 Minimum System Requirements

This evaluation board requires a Windows PC workstation.

  • USB-enabled computer with Windows 7 or Windows 10
  • FTDI USB serial port driver (for FT230X Basic UART device)

1.4 Software

Installing software is necessary to work with this evaluation board. All listed software is available (under NDA) on the evaluation board page RD33774PDSTEVB.

NextGet Hardware

2. Get Hardware

2.1 Board Features

  • Daisy-chain device connection
  • LED indicator for operation mode
  • Cell-balancing resistors (22 Ω per individual cell)
  • Cell-sense input with RC filter
  • GPIO: Digital I/O, wake-up inputs, convert trigger inputs, ratiometric analog inputs, analog inputs with absolute measurements
  • INTB, RSTB, FS0B, LIMP0, FCCU pins
  • EEPROM (connected to the IC with I²C interface) to store user-defined calibration parameters

2.2 Board Description

The RD33774PDSTEVB serves as a hardware evaluation tool in support of NXP's MC33774ATP device. The MC33774ATP is a battery-cell controller that monitors up to 18 lithium-ion battery cells. RD33774PDSTEVB is designed for use in automotive and industrial applications. The device performs analog-to-digital conversion on the differential cell voltages and currents. It is also capable of battery-charge coulomb counting and battery temperature measurements. The RD33774PDSTEVB can be used for rapid prototyping of MC33774ATP-based applications that involve voltage and temperature sensing.

2.3 Board Components

Overview of the RD33774PDSTEVB board

Overview of the RD33774PDSTEVB Board

Overview of the RD33774PDSTEVB board

Figure 1. Board description

Number Name Description
1 Cell balancing resistors 3 x 33 ohms in parallel on each Cx pin: 200 mA of cell-balancing current @4.5 V
2 Cell terminal low-pass filters LPF: 10 kΩ resistor/0.047 µF capacitor to GND
3 GPIO low-pass filters For NTC connections and temperature measurement
4 MC33774ATP (U2) 18-cell battery-cell controller IC
5 NV24C64DWVLT3G (U1) High-speed 64 Kb I²C EEPROM
6 NSS1C201MZ4T1G (Q1) NPN supply bipolar transistor
7, 8 TC102M or capacitive coupling Default BOM: High-voltage single-channel transformers
9 JAE-MX34032NF2 (J1) 32-pin connector for cell connections and NTC connections
10 MOLEX-43650-0213 (J2) TPL connector to higher node
11 MOLEX-43650-0213 (J3) TPL connector to lower node
12 LED VAUX status

PreviousOut of the Box
NextConfigure Hardware

3. Configure Hardware

This section gives guidance on how to set up and run the RD33774PDSTEVB evaluation board and GUI.

3.1 Battery Emulator Connection

The RD33774PDSTEVB supports the use of a battery-cell emulator, such as the BATT-18EMULATOR board.

The BATT-18EMULATOR is an 18-cell battery-emulator board that provides a way to change the voltage across any of the 18 cells and four voltage outputs to emulate four external NTCs. The emulator board can be connected to the RD33774PDSTEVB J1 connector using the provided cell connection cable. Up to three RD33774PDSTEVB can be connected to one BATT-18EMULATOR. See Figure 1

Figure 1. RD33774PDSTEVBs connection to a BATT-18EMULATOR

3.2 TPL Communication Connection

In a high-voltage isolated application with a daisy-chain configuration, up to 62 RD33774PDSTEVB boards may be connected.

The TPL connections use the connectors J2 and J3.

RD33774PDSTEVB TPL Communication Connection

RD33774PDSTEVB TPL Communication Connection

Figure 2. TPL Communication Connection

PreviousGet Hardware
NextDesign Resources

Design Resources

Board Information

Additional References

In addition to the MC33774, 18 Channel Li-Ion Battery Cell Controller IC ASIL D page, visit:

PreviousConfigure Hardware