The MC33772 is a Li-Ion battery cell controller IC designed for automotive and industrial applications such as HEV, EV, ESS, UPS systems. It has been chosen as one of EDN’s Hot 100 products for 2015! featuring:
- ADC conversions on the differential cell voltages and currents as well as coulomb counting and temperature measurements
- Embedded balancing transistors and diagnostics to simplify applications
- The device supports standard SPI and transformer isolated daisy chain communication (via MC33664) to an MCU for processing and control
- The MC33772 is compliant with MPC5xxx 32-bit MCU families
Datasheet, Safety Manual and Application Hint available with a non-disclosure agreement (NDA). For additional information, contact your local NXP Sales Office.
Feature
- 7.0 V ≤ VPWR ≤ 30 V operation, 42 V transient (daisy chain mode)
- 5.0 V ≤ VPWR ≤ 30 V operation, 42 V transient (SPI mode)
- 6 Cell voltage measurement channels
- Total stack voltage measurement
- 0.8 mV maximum total voltage measurement error
- 7 ADC/GPIO/Temperature sensor inputs
- Integrated current sensor with PGA
- ±0.5% accuracy from milliamps to kiloamps
- Integrated coulomb counter
- Onboard 300 mA Low Rdson passive cell balancing MOSFETs with diagnostics
- Balancing in sleep mode
- Programmable balancing timer for each MOSFET
- 2.0 Mbps, 2 wire twisted pair differential, isolated
- Addressable on initialization
- 4 Mbps SPI
- OV/UV, OT/UT, OC fault verification
- Sleep mode OV/UV, OT/UT monitoring
- Support ISO 26262, up to ASIL D safety capability
- Hot plug capable and AEC Q-100
- This product is included in the NXP Product Longevity program ensuring a stable supply of products for your embedded designs. MC33772B is included in the 15-year program
