Overview
The EMB1428QSQX/NOPB is a Switch Matrix Gate Driver integrated circuit designed by Texas Instruments. This component is specifically engineered for active cell balancing in battery management systems. It works in conjunction with the EMB1499 DC/DC controller to manage and balance battery cells connected in series. The EMB1428Q is an automotive-grade product, AEC-Q100 Grade 1 qualified, ensuring reliability over a wide temperature range from -40°C to +125°C.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Maximum Stack Operating Voltage | The maximum voltage the EMB1428 can handle across the battery stack. | 60V |
| Number of Floating Gate Drivers | The number of gate drivers provided for controlling the FET switch matrix. | 12 |
| Interface | The communication interface used for commands and fault reporting. | SPI Bus |
| Operating Junction Temperature | The temperature range over which the device operates. | -40°C to +125°C |
| Supply Voltages | The range of supply voltages for different parts of the circuit. | VDD12V: 10.8V to 13.2V, VDD5V: 4.5V to 5.5V, VDDIO: 2.5V to 5.5V |
| Package Type | The physical package of the IC. | WQFN-48-EP (7x7) |
Key Features
- Twelve Floating Gate Drivers: Provides 12 floating MOSFET gate drivers necessary for balancing up to 7 battery cells connected in series.
- SPI Bus Interface: Allows for commands and fault reporting through an SPI bus interface with the main controller (CPU/MCU).
- Low Power Sleep Mode: Enters a low power sleep mode when not in use to conserve energy.
- AEC-Q100 Grade 1 Qualified: Ensures reliability and compliance with automotive standards over a wide temperature range.
- Active Cell Balancing: Supports active cell balancing schemes in battery management systems.
Applications
- Lithium-Ion Battery Management Systems: Used for balancing and managing lithium-ion battery cells in various applications.
- Electrical/Hybrid Vehicles: Essential component in the battery management systems of electric and hybrid vehicles.
- Grid-Power Storage: Utilized in grid-scale energy storage systems to ensure efficient battery management.
Q & A
- What is the primary function of the EMB1428Q?
The primary function of the EMB1428Q is to provide 12 floating gate drivers for controlling the FET switch matrix in active cell balancing applications.
- How does the EMB1428Q communicate with the main controller?
The EMB1428Q communicates with the main controller through an SPI bus interface.
- What is the maximum stack operating voltage the EMB1428Q can handle?
The EMB1428Q can handle a maximum stack operating voltage of 60V.
- What is the operating temperature range of the EMB1428Q?
The EMB1428Q operates over a temperature range of -40°C to +125°C.
- Is the EMB1428Q suitable for automotive applications?
- What type of package does the EMB1428Q come in?
The EMB1428Q comes in a WQFN-48-EP (7x7) package.
- How does the EMB1428Q manage power consumption when not in use?
The EMB1428Q enters a low power sleep mode when not in use to conserve energy.
- Can the EMB1428Q be used in grid-power storage systems?
- How many battery cells can the EMB1428Q balance at once?
The EMB1428Q can balance up to 7 battery cells connected in series.
- What other component does the EMB1428Q work with for active cell balancing?
The EMB1428Q works in conjunction with the EMB1499 DC/DC controller for active cell balancing.
