Product Overview
MC33771CTP2AE is a battery cell controller IC. The MC33771C is a SMARTMOS lithium-ion battery cell controller IC designed for automotive applications, such as hybrid electric (HEV) and electric vehicles (EV) along with industrial applications, such as energy storage systems (ESS) and uninterruptible power supply (UPS) systems. The device performs ADC conversions of the differential cell voltages and current, as well as battery coulomb counting and battery temperature measurements. The information is transmitted to MCU using one of the microcontroller interfaces (Serial Peripheral Interface (SPI) or transformer physical layer (TPL)) of the IC. Applications include automotive: 48V and high-voltage battery packs, E-bikes, e-scooters, energy storage systems, uninterruptible power supply (UPS).
- 7 to 8 cells management, 0.8mV maximum total voltage measurement error
- Addressable on initialization, seven GPIO/temperature sensor inputs
- Bi-directional transceiver to support up to 63 nodes in daisy chain
- Designed to support ISO 26262, up to ASIL D safety system, qualified in compliance with AECQ-100
- Synchronized cell voltage/current measurement with coulomb count
- Averaging of cell voltage measurements, total stack voltage measurement
- 5V at 5mA reference supply output, onboard 300mA passive cell balancing with diagnostics
- Automatic over/undervoltage and temperature detection routable to fault pin
- 64-pin LQFP-EP package
- Temperature range from -40 to 105°C
Product details
| Battery Type |
Li-Ion |
| No. of Cells |
14Cells |
| Supply Voltage Max |
63V |
| No. of Pins |
64Pins |
| Operating Temperature Max |
105°C |
| Product Range |
- |
| SVHC |
No SVHC (25-Jun-2025) |
| Interfaces |
I2C, SPI, TPL |
| Supply Voltage Min |
9.6V |
| IC Case / Package |
LQFP-EP |
| Operating Temperature Min |
-40°C |
| IC Mounting |
Surface Mount |
| Qualification |
AEC-Q100 |
Other details
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