NXP Semiconductors

UM11421

RDDRONE-BMS772 reference design

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described herein, have been included in section 'Legal information'.

© NXP B.V. 2020.

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Date of release: 12 June 2020

Document identifier: UM11421

Contents

1

Introduction ......................................................... 3

2

Finding kit resources and information on

the NXP web site ................................................ 3

2.1

Collaborate in the NXP community ....................3

3

Getting ready .......................................................3

3.1

Kit contents ........................................................3

3.2

Additional hardware ...........................................3

3.3

Software .............................................................4

4

Getting to know the hardware ........................... 4

4.1

RDDRONE-BMS772 overview ...........................4

4.2

RDDRONE-BMS772 features ............................4

4.3

Block diagram ....................................................5

4.4

RDDRONE-BMS772 board characteristics ........6

4.5

Featured components ........................................6

4.5.1

MC33772B: 6-Channel Li-Ion battery cell

controller ............................................................ 7

4.5.1.1

General description ............................................7

4.5.1.2

Features .............................................................8

4.5.2

Connectors .........................................................8

4.5.3

Communication with Flight Management

Unit (FMU) .........................................................9

4.5.4

Programming and debug ................................. 10

4.5.5

LED ..................................................................10

4.5.6

External and additional components ................10

4.5.6.1

External components .......................................10

4.5.6.2

Additional components .................................... 10

4.5.7

Test points definition ........................................11

4.6

CAN Bus Termination Resistor ........................12

4.7

Schematic, board layout and bill of materials ... 12

5

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

5.1

Power connectors ............................................12

5.2

Cell terminal connection .................................. 13

5.3

Shunt resistor .................................................. 15

5.4

External NFC antenna .....................................15

5.5

Power MOSFETs and heat sinks .................... 16

5.6

Optional components .......................................16

6

Start-up checklist ..............................................16

6.1

First start-up .................................................... 16

6.2

Powering the RDDRONE-BMS772 board ........17

7

References .........................................................17

8

Revision history ................................................ 18

9

Legal information ..............................................19