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).
|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)|
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||
Requires separate MCU
|-40 to 125||Catalog||HTSSOP | 28||28HTSSOP: 43 mm2: 4.4 x 9.7 (HTSSOP | 28)|