NXP MC33772B is a 6-channel lithium-ion battery controller IC. MC33772 lithium battery controller IC, suitable for automotive electronics and industrial control applications such as 14V lithium batteries, HEVs, EVs, ESS, and UPS systems.
MC33772 is a lithium-ion battery controller IC designed for automotive and industrial control applications such as HEV, EV, ESS, and UPS systems. It was rated as one of the top 100 popular products of 2015 by EDN! It has the following functions:
ADC conversion for differential voltage and current of batteries, as well as Coulomb counting and temperature measurement
Embedded balanced transistors and rich diagnostic functions can simplify applications
This device supports standard SPI and transformer isolated daisy chain communication with MCU (via MC33664) for data processing and control.
MC33772 is compatible with the MPC5xxx32-bit MCU series.
Data manual, security manual, and application tips with confidentiality agreement (NDA).
The main product features of NXP MC33772B as a 6-channel lithium-ion battery controller IC are:
supply voltage
- Working voltage 7.0V ≤ VPWR ≤ 30V, transient voltage 40V (daisy chain mode)
Working voltage 5.0V ≤ VPWR ≤ 30V, transient voltage 40V (SPI mode)
Advanced voltage and temperature measurement
- 6-core voltage measurement channel
Total stack voltage measurement
0.8 mV maximum total voltage measurement error
7 ADC/universal IO/temperature sensor inputs
Synchronous advanced current measurement
- Integrate current sensor with PGA
Accuracy up to ± 0.5%, range from milliampere to several thousand ampere
Built in Coulomb counter
Passive balance on board
- Onboard 300 mA low on resistance passive cell balanced MOSFET with diagnostic function
Sleep pattern balance
Programmable balanced timer for each MOSFET
Isolate daisy chain or SPI communication
- 2.0 Mbps, two pairs of twisted pair cables, differential, isolated
Addressable during initialization
4 Mbps SPI
Diagnosis, functional safety, and stability
- OV/UV, OT/UT, OC fault verification
Sleep mode OV/UV, OT/UT monitoring
Supports ISO 26262, up to ASIL D safety level
Supports hot swapping and AEC Q-100
