BMS Carrier Research [MSXV]

Owned by Vinai Birbal (Deactivated)
Last updated: Sept 24, 2024 by Aden Chu
1 min read

The BMS Carrier controls the fans and relays, logs the voltage, current, temperature and relay states, and detects overcharge, overcurrent, overtemperature and undercharge states.

BMS Carrier: MS 14

New Suggestions

Replace inrush current limiting (ICL) circuit with the one on UV cutoff.

  • Replace inrush current limiting (ICL) circuit with the one on UV cutoff.

    • Simpler

    • Cheaper

  • Reduce number of Fans

    • Currently we have eight- 2 fan controllers each control 4.

  • High voltage interlock loop

    • Requires changes to all other HV boards ( MCI, DC-DC, solar)

    • Not priority considering time constraints

 https://uwmidsun.atlassian.net/wiki/spaces/ELEC/pages/2972418049/BMS+Carrier+MSXV

 BMS Carrier [MSXV]

 

Major ICs

  • Buck Converter (12V to 5V)

IC REG BUCK 4.5V TO 17V, 5A, SYNCHRONOUS STEISOSPI COMM

TPS565201DDCT

Not in Stock on Digikey– Needs Replacement?

 

Replacements:

https://www.digikey.ca/en/products/detail/monolithic-power-systems-inc/MP2225GJ-P/7361409?s=N4IgTCBcDaILIAUzIKwHEBSBaBIC6AvkA

 

  •    IC ISOSPI COMM INTERFACE LTC6820IMS#3ZZPBF (ISO_SPI_Interface)

Isolated Communications Interface 16-MSOP

Not in Stock on Digikey– Needs Replacement?

Replacements:

  • L9963T

https://www.mouser.ca/ProductDetail/STMicroelectronics/L9963T-TR?qs=CiayqK2gdcJE44qEFZps%252BA%3D%3D

  • Parts for L9963T-

https://www.digikey.ca/en/products/detail/stmicroelectronics/USBLC6-4SC6/725216

 

 

 Couldn’t find a good replacement in Stock. Will continue searching.

 

 

  • IC PULSE XFMR 1CT:1CT 350UH SMD (ISO_SPI_Interface)

PT61018AAPEL-S

https://www.digikey.ca/en/products/detail/bourns-inc/SM13072APEL/6238215

 

  • IC HSD Dual-Channel 40V 1KOhm (high side driver to kill switch)

TPS2H000-Q1

Not in Stock on Digikey– Need Replacement?

Replacements:

https://www.digikey.ca/en/products/detail/stmicroelectronics/IPS2050HTR/15814430

https://www.mouser.ca/ProductDetail/Infineon-Technologies/BTS70021EPPXUMA1?qs=qSfuJ%252Bfl%2Fd4cKoHb1mP5aw%3D%3D

 

(will check schematic again for exact requirements)

  • MCP23008T-E/SS (Firmware Contactor Control)

IC I/O EXPANDER I2C 8B 20SSOP

Not in Stock on Digikey– Need Replacement?

Replacements:

https://www.digikey.ca/en/products/detail/microchip-technology/MCP23008-E-P/735951 (through hole)

https://www.digikey.ca/en/products/detail/nxp-usa-inc/PCF8574T-3-518/735691(100KHz)

https://www.digikey.ca/en/products/detail/nxp-usa-inc/PCA8574D-518/1692859(400KHz)

https://www.digikey.ca/en/products/detail/nxp-usa-inc/PCA9674APW-118/1301000(1MHz)

 

 

  • IC REMOTE THERMAL CTLR 24QSOP (Fan Controller)

https://www.digikey.ca/en/products/detail/ADT7476AARQZ-R/ADT7476AARQZ-ROSCT-ND/3487290?curr=usd&utm_campaign=buynow&utm_medium=aggregator&utm_source=octopart

  • G6RN-1A DC12 Omron Relay SPST

Not in Stock on Digikey– Need Replacement?

Replacements:

https://www.digikey.ca/en/products/detail/G6C-2117P-US-DC12/Z3626-ND/205176?curr=usd&utm_campaign=buynow&utm_medium=aggregator&utm_source=octopart

  • Diodes

  1. DMN3023L-7(MOSFET N-CH 30V 4A SOT23-6)- Not in Stock

Replacement-https://www.digikey.ca/en/products/detail/diodes-incorporated/DMN3028LQ-7/14563115

2. STT4P3LLH6 (P-Channel 30 V 4A (Ta) 1.6W (Ta) Surface Mount SOT-23-6)- Not in Stock

Replacement- https://www.digikey.ca/en/products/detail/toshiba-semiconductor-and-storage/SSM3J374R-LXHF/14555981