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 you through the process of setting up and using the RD33774ADSTEVB board.

1.1 Kit Content and Packing List

The RD33774ADSTEVB kit contents include:

Assembled and tested evaluation board/module in anti-static bag
One 32-pin battery cell cable
One two-pin TPL cable

Mark as complete:1.1 Kit Content and Packing List

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
EEPROM (connected to the IC with I²C interface) to store user-defined calibration parameters

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2.2 Board Description

The RD33774ADSTEVB serves as a hardware evaluation tool in support of NXP's MC33774A device. The MC33774A is a battery-cell controller that monitors up to 18 lithium-ion battery cells. RD33774ADSTEVB 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 RD33774ADSTEVB can be used for rapid prototyping of MC33774A-based applications that involve voltage and temperature sensing.

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2.3 Board Components

Overview of the RD33774ADSTEVB board

Table 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	MC33774A (U2)	18-cell battery-cell controller IC
5	NV24C64DWVLT3G `(U1)`	High-speed 64 Kb I²C EEPROM
6	NSS1C201MZ4T1G `(Q1)`	NPN supply bipolar transistor
7	HM2118NL or HM2168NL`(T2)` or capacitive coupling	Default BOM: High-voltage dual-channel transformer
8	JAE-MX34032NF2 `(J1)`	32-pin connector for cell connections and NTC connections
9	MOLEX-43650-0213 `(J2)`	TPL connector to higher node
10	MOLEX-43650-0213 `(J3)`	TPL connector to lower node
11	LED	VAUX status

Mark as complete:2.3 Board Components

PreviousOut of the Box

NextConfigure Hardware

3. Configure Hardware

The RD33774ADSTEVB kit is designed for use with the FRDMDUALK3664EVB or a FRDM665SPIEVB in high-voltage isolated applications that provide an SPI-to-high-speed isolated communication interface. The FRDMDUALK3664EVB includes two MC33664 isolated-network high-speed transceivers allowing loopback connection. MCU SPI data bits are directly converted to pulse bit information.

The FRDM665SPIEVB includes one MC33665A isolated-network high-speed transceiver allowing loopback connection. MCU SPI data bits are directly converted to pulse bit information.

Figure 1. FRDMDUALK3664EVB transceiver board

3.1 Battery Emulator Connection

The RD33774ADSTEVB 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 an intuitive way to change the voltage across any of the 18 cells and four voltage outputs in order to emulate four external NTCs. The emulator board can be connected to the RD33774ADSTEVB J1 connector using the provided cell connection cable.

Up to three RD33774ADSTEVB can be connected to one BATT-18EMULATOR. See Figure 2