Overview
The LTC6810IG-1#3ZZPBF, produced by Analog Devices Inc., is a multicell battery stack monitor designed to measure the voltage of up to 6 series-connected battery cells. This device is part of the LTC6810 family, which includes the LTC6810-1 and LTC6810-2 variants. It is particularly suited for various battery chemistries due to its measurement range of 0V to 5V and a total measurement error of less than 1.8mV. The LTC6810IG-1#3ZZPBF is AEC-Q100 qualified, making it suitable for automotive applications. It features a stackable architecture, allowing for the monitoring of long, high-voltage battery strings, and includes an isoSPI interface for high-speed, RF-immune, long-distance communications.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Number of Cells | - | 1 | - | 6 | - |
| Measurement Range | - | 0V | - | 5V | - |
| Total Measurement Error | - | - | - | 1.8mV | - |
| Measurement Time | - | - | 290µs | - | - |
| Operating Temperature | - | -40°C | - | 85°C | - |
| Interface | - | - | - | isoSPI | - |
| Mounting Type | - | - | - | Surface Mount | - |
| Supply Current (Ready Mode) | ISOMD = 0, RB1 + RB2 = 2k | 3.6mA | 4.5mA | 5.2mA | - |
| Supply Current (Active Mode) | ISOMD = 0, RB1 + RB2 = 2k | 5.6mA | 6.8mA | 8.1mA | - |
Key Features
- High Accuracy Measurements: Total measurement error of less than 1.8mV.
- Stackable Architecture: Allows for the monitoring of long, high-voltage battery strings.
- isoSPI Interface: High-speed, RF-immune, long-distance communications up to 100 meters using a single twisted pair.
- Passive Balancing: PWM duty cycle control for each cell and redundant cell measurements.
- Onboard 5V Regulator: Provides a stable voltage supply.
- General Purpose I/O Lines: Four I/O lines available for additional functionality.
- Low Power Consumption: Sleep mode reduces current consumption to 4µA.
- Bidirectional Communication: Allows communication even with a broken wire.
Applications
- Automotive Systems: AEC-Q100 qualified, making it suitable for automotive battery management systems.
- Industrial Battery Systems: Ideal for monitoring and managing industrial battery stacks.
- Renewable Energy Systems: Can be used in solar and wind energy storage systems.
- Electric Vehicles: Suitable for battery management in electric vehicles.
- Energy Storage Systems: Used in various energy storage applications requiring precise battery monitoring.
Q & A
- What is the maximum number of battery cells the LTC6810IG-1#3ZZPBF can measure?
The LTC6810IG-1#3ZZPBF can measure up to 6 series-connected battery cells.
- What is the total measurement error of the LTC6810IG-1#3ZZPBF?
The total measurement error is less than 1.8mV.
- What is the measurement range of the LTC6810IG-1#3ZZPBF?
The measurement range is from 0V to 5V.
- How long does it take to measure all cells in a system?
All 6 cells can be measured in 290µs.
- What type of interface does the LTC6810IG-1#3ZZPBF use for communication?
The device uses an isoSPI interface for high-speed, RF-immune, long-distance communications.
- Is the LTC6810IG-1#3ZZPBF suitable for automotive applications?
Yes, it is AEC-Q100 qualified, making it suitable for automotive applications.
- Can the LTC6810IG-1#3ZZPBF 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 LTC6810IG-1#3ZZPBF?
The operating temperature range is from -40°C to 85°C.
- Does the LTC6810IG-1#3ZZPBF support bidirectional communication?
Yes, it supports bidirectional operation, allowing communication even with a broken wire.
- What is the current consumption in sleep mode?
The current consumption in sleep mode is reduced to 4µA.
