1FEATURES

2? 60V Maximum Stack Operating Voltage

? Twelve (12) Floating Gate Drivers

? SPI Bus Interface (for Charge/discharge

Commands and Fault Reporting)

? Low Power Sleep Mode

? EMB1428Q is an Automotive Grade Product

that is AEC-Q100 Grade 1 Qualified (-40°C to

+125°C Operating Junction Temperature)

APPLICATIONS

? Li-Ion Battery Management Systems

? Electrical/Hybrid Vehicles

? Grid-Power Storage

DESCRIPTION

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).