Overview
The LT8490EUKJ#PBF, produced by Analog Devices Inc., is a high-performance buck-boost switching regulator designed for battery charging applications. It implements a constant-current constant-voltage (CCCV) charging profile, making it suitable for various battery types including sealed lead-acid (SLA), flooded, gel, and lithium-ion batteries. The device features maximum power point tracking (MPPT) for solar-powered applications and can operate from input voltages above, below, or equal to the output voltage.
Key Specifications
| Parameter | Min | Typ | Max |
|---|---|---|---|
| Operating Junction Temperature Range | –40°C | 125°C | |
| Storage Temperature Range | –40°C | 125°C | |
| Input Voltage Range | –0.3V | 87V | |
| PWM Frequency (OSC2) | 31.25 kHz | ||
| PWM Resolution | 8 Bits | ||
| Internal A/D Resolution | 10 Bits | ||
| Package Type | 64-Lead (7mm × 11mm) Plastic QFN |
Key Features
- Constant-current constant-voltage (CCCV) charging profile for various battery types.
- Maximum power point tracking (MPPT) for solar-powered applications.
- Operates from input voltages above, below, or equal to the output voltage.
- Automatic temperature compensation by sensing battery temperature.
- On-chip logic for fault detection and indication.
- Supports flexible charging profiles.
Applications
- Solar-powered battery charging systems.
- DC power supply-based battery charging systems.
- Battery management systems for sealed lead-acid (SLA), flooded, gel, and lithium-ion batteries.
- Industrial and automotive battery charging applications.
- Renewable energy systems requiring efficient battery charging.
Q & A
- What is the LT8490EUKJ#PBF used for?
The LT8490EUKJ#PBF is used for high-performance battery charging applications, including solar-powered and DC power supply-based systems. - What types of batteries does the LT8490EUKJ#PBF support?
The device supports sealed lead-acid (SLA), flooded, gel, and lithium-ion batteries. - What is the operating temperature range of the LT8490EUKJ#PBF?
The operating junction temperature range is –40°C to 125°C. - Does the LT8490EUKJ#PBF support maximum power point tracking (MPPT)?
Yes, it supports MPPT for solar-powered applications. - What is the input voltage range of the LT8490EUKJ#PBF?
The input voltage range is –0.3V to 87V. - What is the PWM frequency of the LT8490EUKJ#PBF?
The PWM frequency is 31.25 kHz. - Does the LT8490EUKJ#PBF have built-in fault detection?
Yes, it has on-chip logic for fault detection and indication. - What is the package type of the LT8490EUKJ#PBF?
The package type is 64-Lead (7mm × 11mm) Plastic QFN. - Is the LT8490EUKJ#PBF suitable for industrial applications?
Yes, it is suitable for industrial and automotive battery charging applications. - Does the LT8490EUKJ#PBF support automatic temperature compensation?
Yes, it supports automatic temperature compensation by sensing battery temperature.
