Datasheet > MC33775ATA1AE

MC33775ATA1AE

更新时间： 2024-09-24 15:19:15

品牌	Logo	应用领域
恩智浦 - NXP		电池
页数	文件大小	规格书
10页	173K
描述
Battery Cell Controller, Advanced, 14 Channels, TPL, LQFP64

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MC33775ATA1AE 数据手册

MC33775A

14 cells battery cell controller IC

Rev. 2 — 17 July 2023

Product short data sheet

1 Product profile

1.1 General description

The MC33775A is a lithium-ion battery cell controller IC designed for automotive applications, such as hybrid

electric vehicle (HEV) and electric vehicle (EV). It can be used in industrial applications, such as energy storage

system (ESS) and uninterruptible power supply (UPS) systems. The device measures differential high precision

cell voltages as well as temperatures. Additionally, the device provides an extensive set of passive cell voltage

balancing features to equalize the individual cell voltages across the battery stack. The device offers serial

peripheral interface (SPI) and an isolated daisy chain interface for communication with the host MCU. The

MC33775A offers increased safety level and a low bill of materials.

1.2 Features and benefits

• AEC-Q100 grade 1 qualified: −40 °C to +125 °C ambient temperature range

• ISO 26262 ASIL D support for cell voltage, module voltage, and temperature measurements

• Cell voltage measurement

– 4 to 14 cells per device

– Supports bus bars with ±5 V input voltage

– 16-bit resolution and ±1 mV typical measurement accuracy with ultra low long-term drift

– 120 µs synchronicity of cell voltage measurements

– Integrated configurable digital filter

• External temperature and auxiliary voltage measurements

– Eight analog inputs

– 5 V input range, configurable as absolute or ratiometric

– 16-bit resolution and ±5 mV typical measurement accuracy

– Integrated configurable digital filter

• Module voltage measurement

– 9.6 V to 65 V input range

– 16-bit resolution and 0.3 % measurement accuracy

– Integrated configurable digital filter

• Internal measurement

– Two redundant internal temperature sensors

– Supply voltages

– External transistor current

• Cell voltage balancing

– 14 internal balancing field effect transistors (FETs), up to 300 mA per channel (max)

– Simultaneous passive balancing of all channels

– Global balancing timeout timer

– Timer controlled balancing with individual timers with 10 s resolution and up to 45 h duration

– Voltage controlled balancing with two thresholds to stop the affected cell or stop all balancing

– Temperature controlled balancing; if balancing resistors are in overtemperature, balancing is interrupted

12 3 4 5 6 7...10

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