Overview
The LTC3810EG#TRPBF is a synchronous step-down switching regulator controller produced by Analog Devices Inc. This device is designed to directly step-down voltages from up to 100V, making it highly suitable for applications in telecom, industrial power systems, and other high-voltage DC-DC conversion needs. The LTC3810 operates in current mode and features a robust set of functionalities, including overcurrent protection, voltage tracking, and a wide operating temperature range.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Feedback Voltage Line Regulation | 7V < INTVCC < 14V | 0.002 | 0.02 | %/V | |
| Maximum Current Sense Threshold | VRNG = 2V, VFB = 0.76V | - | - | 100 | mV |
| Operating Junction Temperature Range | - | -40 | - | 125 | °C |
| INTVCC Voltage from EXTVCC | 10.5V < VEXTVCC < 15V | 9.4 | 10 | 10.6 | V |
| VEXTVCC Switchover Voltage | EXTVCC Rising | 6.4 | 6.7 | 7.0 | V |
| EXTVCC Hysteresis | - | 0.1 | - | 0.5 | V |
Key Features
- High Voltage Capability: Can directly step-down voltages from up to 100V.
- Current Mode Operation: Features a current mode control architecture for precise current regulation.
- Wide Operating Temperature Range: Guaranteed to meet performance specifications over the –40°C to 125°C operating junction temperature range.
- Overcurrent Protection: Includes overcurrent protection to prevent damage to the device.
- Voltage Tracking: Supports voltage tracking for synchronized operation with other regulators.
- Flexible Configuration: Allows for various configuration options including forced continuous, pulse skip, and burst mode operation.
Applications
The LTC3810EG#TRPBF is ideal for a variety of high-voltage DC-DC conversion applications, including:
- Telecom power systems
- Industrial power supplies
- Automotive systems
- High-voltage battery charging and discharging systems
- Power supplies for medical and aerospace equipment
Q & A
- What is the maximum input voltage the LTC3810EG#TRPBF can handle?
The LTC3810EG#TRPBF can directly step-down voltages from up to 100V. - What is the operating temperature range of the LTC3810EG#TRPBF?
The device is guaranteed to meet performance specifications over the –40°C to 125°C operating junction temperature range. - Does the LTC3810EG#TRPBF support voltage tracking?
Yes, the LTC3810EG#TRPBF supports voltage tracking for synchronized operation with other regulators. - What are the different operation modes available for the LTC3810EG#TRPBF?
The device allows for forced continuous, pulse skip, and burst mode operation. - Is the LTC3810EG#TRPBF protected against overcurrent conditions?
Yes, the device includes overcurrent protection to prevent damage. - What is the typical feedback voltage line regulation for the LTC3810EG#TRPBF?
The typical feedback voltage line regulation is 0.02%/V. - What is the maximum current sense threshold for the LTC3810EG#TRPBF?
The maximum current sense threshold is 100 mV. - Can the LTC3810EG#TRPBF be used in automotive systems?
Yes, the device is suitable for use in automotive systems due to its high voltage capability and wide operating temperature range. - How does the LTC3810EG#TRPBF regulate the output voltage?
The device operates in current mode, using a sense resistor or the bottom MOSFET on-resistance to determine the inductor current. - What is the package type for the LTC3810EG#TRPBF?
The device is available in a 28-Lead Plastic SSOP package.
