The EMB1428 Switch Matrix Gate Driver IC is designed to work in conjunction with EMB1499 DC/DC Controller IC to support TI’s switch matrix based active cell balancing scheme in a battery management system. The EMB1428 provides 12 floating MOSFET gate drivers necessary for balancing up to 7 battery cells connected in a series stack. Multiple EMB1428 ICs may be used together to balance a stack of more than seven battery cells.

The EMB1428 integrated circuit interfaces with the EMB1499 DC/DC controller to control and enable charging and discharging modes. The EMB1428 uses an SPI bus to accept commands from the main controller (CPU/MCU) on which battery cell should be charged or discharged and to report back any faults to the main controller (CPU/MCU).

• 60V Maximum Stack Operating Voltage
• Twelve (12) Floating Gate Drivers
• SPI Bus Interface (for Charge/discharge Commands and Fault Reporting)
• Low Power Mode
• EMB1428Q is an Automotive Grade Product that is AEC-Q100 Grade 1 Qualified (40°C to +125°C Operating Junction Temperature)

• Number of series cells (Min)
• 6
• Vin (Max) (V)
• 5.5
• Features
• Cell balancing, Multi-cell support, Stackable (built-in interface)
• Number of series cells (Max)
• 14
• Rating
• Automotive

EMB1428Q的完整型号有：EMB1428QSQ/NOPB、EMB1428QSQE/NOPB、EMB1428QSQX/NOPB，以下是这些产品的关键参数及官网采购报价：

EMB1428QSQ/NOPB，工作温度：-40 to 125，封装：WQFN (RHS)-48，包装数量MPQ：1000个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：SN，TI官网EMB1428QSQ/NOPB的批量USD价格：11.418（1000+）

EMB1428QSQE/NOPB，工作温度：-40 to 125，封装：WQFN (RHS)-48，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：SN，TI官网EMB1428QSQE/NOPB的批量USD价格：11.418（1000+）

EMB1428QSQX/NOPB，工作温度：PropertyValue，封装：WQFN (RHS)-48，包装数量MPQ：2500个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：SN，TI官网EMB1428QSQX/NOPB的批量USD价格：9.591（1000+）