EMB1428Q Switch Matrix Gate Driver for Active Cell Balancing | TI.com

EMB1428Q
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Switch Matrix Gate Driver for Active Cell Balancing

Switch Matrix Gate Driver for Active Cell Balancing - EMB1428Q
Datasheet
 

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).

Features

  • 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)

Parametrics

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Part number Order Vin (Max) (V) Number of series cells (Min) Number of series cells (Max) Features Operating temperature range (C) Rating Package Group Package size: mm2:W x L (PKG)
EMB1428Q Order now 5.5     6     14     Cell Balancing
Multi-cell Support
Stackable (built-in interface)    
-40 to 125     Catalog     WQFN | 48     48WQFN: 49 mm2: 7 x 7 (WQFN | 48)    
EMB1499Q Samples not available 5.5     6     14     Cell Balancing
Multi-cell Support
Requires separate MCU    
-40 to 125     Catalog     HTSSOP | 28     28HTSSOP: 43 mm2: 4.4 x 9.7 (HTSSOP | 28)