Overview
The LTC6806HLW#3ZZPBF, produced by Analog Devices Inc., is a sophisticated fuel cell monitor designed to measure the voltage of up to 144 series-connected fuel cells with high accuracy. This device is part of the LTC6806 family, which is renowned for its precision and reliability in fuel cell monitoring applications. The LTC6806 features 36 input channels, each capable of measuring a range of ±5V, allowing it to monitor from 1 to 4 series-connected fuel cells per channel. The device is particularly useful in automotive and industrial settings where precise fuel cell monitoring is critical.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Cell Measurement Range | C(n) to C(n-1) | -2.5 | - | 2.5 | V |
| Cell Measurement Resolution | HIRNG = 0 | 1.5 | - | - | mV/bit |
| Cell Measurement Resolution | HIRNG = 1 | 3.0 | - | - | mV/bit |
| V+ Measurement Range (Relative to V–) | V+ = 4.75V | 0 | - | 4.2 | V |
| V+ Measurement Range (Relative to V–) | V+ = 5.5V | 0 | - | 5.0 | V |
| Total Measurement Error | - | - | - | 15mV | mV |
| Measurement Time (Fast ADC Mode) | - | - | 6.75ms | - | ms |
| Measurement Time (Normal ADC Mode) | - | - | 10.3ms | - | ms |
| Operating Temperature Range | - | -40°C | - | 125°C | °C |
| Package Type | - | - | - | 64-Lead Plastic LQFP | - |
Key Features
- High Accuracy Measurement: Measures up to 144 series-connected fuel cells with a total measurement error of less than 15mV.
- Multiple Measurement Modes: Supports fast ADC mode (6.75ms) and normal ADC mode (10.3ms) for different application requirements.
- Provides high-speed, RF-immune, long-distance communications with options for daisy-chain and parallel communication modes.
- Wide Operating Range: Each channel has a ±5V measurement range, allowing it to measure from 1 to 4 series-connected fuel cells per channel.
- Automotive Grade: Available in automotive-grade versions with controlled manufacturing to support the quality and reliability requirements of automotive applications.
Applications
The LTC6806HLW#3ZZPBF is primarily used in fuel cell monitoring systems, particularly in:
- Automotive Systems: For monitoring fuel cells in electric and hybrid vehicles.
- Industrial Power Systems: For fuel cell stacks in industrial power generation and backup systems.
- Energy Storage Systems: For monitoring and managing energy storage systems that utilize fuel cells.
Q & A
- What is the maximum number of fuel cells the LTC6806 can measure?
The LTC6806 can measure up to 144 series-connected fuel cells. - What is the total measurement error of the LTC6806?
The total measurement error is less than 15mV. - How many input channels does the LTC6806 have?
The LTC6806 has 36 input channels. - What are the measurement modes available on the LTC6806?
The LTC6806 supports fast ADC mode (6.75ms) and normal ADC mode (10.3ms). - What type of interface does the LTC6806 use for communication?
The LTC6806 uses an isoSPI interface for high-speed, RF-immune, long-distance communications. - Can the LTC6806 be used in automotive applications?
Yes, the LTC6806 is available in automotive-grade versions with controlled manufacturing to support the quality and reliability requirements of automotive applications. - What is the operating temperature range of the LTC6806HLW#3ZZPBF?
The operating temperature range is -40°C to 125°C. - What is the package type of the LTC6806HLW#3ZZPBF?
The package type is a 64-Lead Plastic LQFP. - How does the LTC6806 handle noise reduction?
The LTC6806 allows for lower data acquisition rates to be selected for high noise reduction. - Can multiple LTC6806 devices be connected in different configurations?
Yes, multiple devices can be connected in daisy-chain or parallel modes.
