5.1.2.1. Changelog for Slave LTC6811-1
5.1.2.1.1. v2.1.7
- modified component designators to be compatible with 18cell versions 
5.1.2.1.2. v2.1.6
- EMI improvements (layout) 
- added RC filters on NTC sensor inputs 
- added DC/DC converters for 5V LTC supplies 
5.1.2.1.3. v2.1.5
- Replaced opamps, port expanders and optocouplers with AEC-Q100 compliant ones 
- Modified silkscreen texts 
5.1.2.1.4. v2.1.4
- Primary software timer is now switched on by default 
- added layermarker on PCB 
5.1.2.1.5. v2.1.3
- replaced EOL port expander with PCF8574 
5.1.2.1.6. v2.1.2
- ported schematics and layout to Altium Designer 
- created hierarchical design 
- introduced minor improvements to design 
5.1.2.1.7. v2.1.1
- improved isolation distances between external DC/DC converter supply and battery module signals 
5.1.2.1.8. v2.1.0
- added 8-24 V isolated external power supply 
- replaced I2C EEPROM 24AA02UID with M24M02-DR (ECC) 
- switched connection of balancing resistors from serial to parallel 
- replaced isoSPI transformers HX1188NL with HM2102NL 
5.1.2.1.9. v2.0.3
- fixed isoSPI transformer CMC issue 
5.1.2.1.10. v2.0.2
- replaced LTC1380 MUXs with ADG728 (400 kHz I2C) 
- adjusted connection of 100 ohm resistors for V+/V_REG supply 
- reduced value of I2C pull-up resistors to 1k2 
5.1.2.1.11. v2.0.1
- added missing cooling areas on bottom side, adjusted silk screen 
- enlarged PCB tracks, R201/202/301/302 other package 
- enlarged T201/301 cooling area 
- Replaced PCF8574 with PCA8574 (400 kHz I2C) 
5.1.2.1.12. v2.0.0
- initial release 
