Overview
The LT8210EUJ#PBF, produced by Analog Devices Inc., is a 4-switch synchronous buck-boost DC/DC controller. This device is designed to operate in various modes including pass-thru, forced continuous, pulse-skipping, and Burst Mode® operation. The pass-thru mode allows the input voltage to be directly passed to the output when the input voltage falls within a user-programmable window, thereby eliminating switching losses and EMI, and maximizing efficiency. The controller supports a wide input voltage range and is equipped with features such as regulated gate driver supplies and back-drive protection, making it suitable for a variety of power management applications.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| VIN, VINP Input Operating Voltage Range | 4.5 | - | 100 | V |
| VIN Quiescent Current (Shutdown, VEN/UVLO = 0V) | 1 | 5 | 15 | µA |
| VIN Quiescent Current (Not Switching, Internal Charge Pump Enabled) | 4 | 15 | 1800 | µA |
| TG1, TG2 Gate Driver Pull-Up Resistance | - | 3 | - | Ω |
| TG1, TG2 Gate Driver Pull-Down Resistance | - | 1 | - | Ω |
| TG1, TG2 Rise Time (CLOAD = 3300pF, 10% to 90%) | - | 25 | - | ns |
| TG1, TG2 Fall Time (CLOAD = 3300pF, 10% to 90%) | - | 15 | - | ns |
Key Features
- 4-switch synchronous buck-boost topology
- Operates in pass-thru, forced continuous, pulse-skipping, and Burst Mode® operation
- Wide input voltage range: 4.5V to 100V
- Regulated gate driver supply (GATEVCC) at 10.6V
- Back-drive protection for gate drivers
- Low quiescent current in shutdown mode
- High efficiency due to pass-thru mode and minimized switching losses
Applications
- Power management in industrial and automotive systems
- Battery-powered devices requiring high efficiency and wide input voltage range
- Renewable energy systems such as solar and wind power
- Energy harvesting applications
- High-reliability power supplies in aerospace and defense
Q & A
- What is the input voltage range of the LT8210EUJ#PBF?
The input voltage range is from 4.5V to 100V. - What are the operating modes of the LT8210EUJ#PBF?
The device operates in pass-thru, forced continuous, pulse-skipping, and Burst Mode® operation. - What is the purpose of the pass-thru mode?
The pass-thru mode allows the input voltage to be directly passed to the output when the input voltage falls within a user-programmable window, eliminating switching losses and EMI, and maximizing efficiency. - What is the regulated gate driver supply voltage?
The regulated gate driver supply voltage (GATEVCC) is 10.6V. - Does the LT8210EUJ#PBF have back-drive protection?
Yes, the gate drivers have back-drive protection. - What is the typical quiescent current in shutdown mode?
The typical quiescent current in shutdown mode is 5µA. - What are the typical rise and fall times for the gate drivers?
The typical rise time is 25ns and the typical fall time is 15ns. - In which applications is the LT8210EUJ#PBF commonly used?
It is commonly used in power management for industrial and automotive systems, battery-powered devices, renewable energy systems, energy harvesting applications, and high-reliability power supplies. - Where can I find detailed specifications for the LT8210EUJ#PBF?
Detailed specifications can be found in the datasheet available on the Analog Devices website or through distributors like Digi-Key and Element14. - What is the significance of the Burst Mode® operation?
Burst Mode® operation helps in reducing power consumption during light load conditions by operating the controller in a burst mode, thus improving overall efficiency.
