The MC33771C is a Li-Ion battery cell controller IC designed for automotive and industrial applications such as HEV, EV, ESS, UPS systems. Featuring:
| Parameter | MC33771B | MC33771C | MC33772B | MC33772C |
| Voltage Channels | 7..14 | 7..14 | 3..6 | 3..6 |
| Supply VRange (Max) | 9.6 V..61.6 V (75 V) | 9.6 V..61.6V (75 V) | 6 V..30 V (40 V) | 6 V..30 V (40 V) |
| Cell Input Voltage Range | -0.3 V to 5 V | -0.3 V to 5 V | -0.3 V to 5 V | -0.3 V to 5 V |
| Measurement Error | ± 0.8 mV (Vcell =3.3 v Ta = 25°c) | ± 0.8 mV (Vcell =3.3 v Ta = 25°c) | ± 0.8 mV (Vcell =3.3 v Ta = 25°c) | ± 0.8 mV (Vcell =3.3 v Ta = 25°c) |
| Total Measurement Error (After aging: MLS3 and 1000h HTOL) |
± 3.9 mV | ± 3.9 mV | ± 3.9 mV | ± 3.9 mV |
| Vpwr=9.6V..61.6V, Vcell=1.5V..4.3V, -40~85°C |
Vpwr=9.6V..61.6V, Vcell=1.5V..4.3V, -40°C..85°C |
Vpwr=6V..30V, Vcell=1.5V..4.3V, -40~85°C |
Vpwr=6V..30V, Vcell=1.5V..4.3V, -40~85°C |
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| Measurement averaging | No | Configurable Averaging Samples 2ⁿ n=0..8, (1,2,4,..256) |
No | Configurable Averaging Samples 2ⁿ n=0..8, (1,2,4,..256) |
| Functional Safety |
ASIL C ASIL D Compliance |
ASIL C ASIL D Compliance |
ASIL C ASIL D Compliance |
ASIL C ASIL D Compliance |
| Isolated communication Speed | 2 Mbps | 2 Mbps | 2 Mbps | 2 Mbps |
| Communication Isolation | Inductive | Inductive, Capacitive | Inductive | Inductive, Capacitive |
| Max Nodes per Daisy Chain | 15 | 63 | 15 | 63 |
| CRC Bit | 8 | 8 | 8 | 8 |
| Comms bit | 40 | 48 | 40 | 48 |
| Integrated Balancing | <300 mA, Timer | <300 mA, Timer | <300 mA, Timer | <300 mA, Timer |
| Balancing sleep mode | Yes | Yes | Yes | Yes |
| GPIO / Analog measurement inputs | 7 | 7 | 7 | 7 |
| I²C Controller | EEPROM Only | EEPROM Only | EEPROM Only | EEPROM Only |
| Current Channels | 1 | 1 | 1 | 1 |
| Coulomb counter | 1 | 1 | 1 | 1 |
| Package | 64-pin LQFP-EP (-40~105°C) | 64-pin LQFP-EP (-40~105°C) | 48-pin LQFP-EP (-40~105°C) | 48-pin LQFP-EP (-40~105°C) |
Battery management systems (BMS) solutions for automotive and industrial applications including 12 V, 48 V, high-voltage and battery pack monitoring applications.
When it comes to functional safety, NXP stands for quality and reliability. Our SafeAssure program simplifies system-level safety requirements in accordance with ISO 26262.
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