Overview
The LTC6811IG-1#PBF, produced by Analog Devices Inc., is a sophisticated multicell battery stack monitor designed to measure the voltage of up to 12 series-connected battery cells. This integrated circuit is part of the LTC6811 family, known for its high accuracy and robust features. It is particularly useful in applications requiring precise battery monitoring and management, such as electric vehicles, renewable energy systems, and other high-performance battery-powered devices.
Key Specifications
| Attribute | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Part Number | LTC6811IG-1#PBF |
| Package | SSOP-48-208mil |
| Operating Temperature Range | -40°C to 85°C |
| Total Measurement Error | < 1.2mV |
| Number of Cells Monitored | Up to 12 cells in series |
| Power Supply | Can be powered directly from the battery stack or from an isolated supply |
| VREG Supply Voltage | 4.5V to 5.5V |
| Sleep Mode Supply Current | 4µA |
| General Purpose I/O Lines | 5 lines |
Key Features
- High Accuracy Measurement: Measures up to 12 series-connected battery cells with a total measurement error of less than 1.2mV.
- Passive Cell Balancing: Includes passive balancing for each cell with individual PWM duty cycle control.
- Stackable Architecture: Supports daisy-chaining of multiple devices for monitoring large battery stacks.
- Isolated Serial Communication: Uses isoSPI interface for isolated serial communications, reducing EMI susceptibility and emissions.
- Onboard 5V Regulator: Features an onboard 5V regulator for power management.
- General Purpose I/O Lines: Provides five general-purpose digital I/O lines that can be configured as analog inputs for temperature or other sensor inputs).
- Sleep Mode: Reduces current consumption to 4µA in sleep mode).
Applications
- Electric Vehicles: Ideal for battery management systems in electric vehicles where precise cell monitoring is crucial.
- Renameable Energy Systems: Suitable for monitoring battery stacks in solar and wind energy storage systems).
- High-Performance Battery-Powered Devices: Used in various applications requiring high accuracy battery monitoring, such as industrial power systems and energy storage solutions).
Q & A
- What is the maximum number of battery cells the LTC6811IG-1#PBF can monitor? The LTC6811IG-1#PBF can monitor up to 12 series-connected battery cells).
- What is the total measurement error of the LTC6811IG-1#PBF? The total measurement error is less than 1.2mV).
- Can the LTC6811IG-1#PBF be powered directly from the battery stack? Yes, it can be powered directly from the battery stack or from an isolated supply).
- What is the operating temperature range of the LTC6811IG-1#PBF? The operating temperature range is -40°C to 85°C).
- Does the LTC6811IG-1#PBF have onboard voltage regulation? Yes, it features an onboard 5V regulator).
- How many general-purpose I/O lines does the LTC6811IG-1#PBF have? It has five general-purpose digital I/O lines).
- What is the sleep mode supply current of the LTC6811IG-1#PBF? The sleep mode supply current is 4µA).
- Is the LTC6811IG-1#PBF RoHS compliant? Yes, it is RoHS compliant).
- Can multiple LTC6811IG-1#PBF devices be connected in a daisy chain? Yes, multiple devices can be connected in a daisy chain with one host processor connection for all devices).
- What type of package does the LTC6811IG-1#PBF come in? It comes in a 48-lead plastic SSOP package).
