Overview
The LTC4372HDD#PBF, produced by Analog Devices Inc., is a positive high voltage ideal diode controller designed to drive an external N-channel MOSFET. This component effectively replaces a Schottky diode, offering improved efficiency and reliability in various power management applications. The LTC4372 is part of the LTC4372/LTC4373 family, which is known for its high performance and versatility in managing power supply systems.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Input Supply Voltage Range (VIN) | 2.5 | 80 | V | ||
| Input Supply Undervoltage Lockout (VIN(UVL)) | IN Rising | 1.9 | V | ||
| Source Voltage Range | -28 | 100 | V | ||
| Output Voltage Range (OUT) | -2 | 100 | V | ||
| Gate-Source Voltage Range | -0.3 | 10 | V | ||
| Shutdown Control Input (SHDN) | -0.3 | 100 | V | ||
| Internal 3V Supply Decoupling Output (INTVCC) | -0.3 | 6 | V | ||
| Operating Temperature Range | -40 | 125 | °C | ||
| Supply Current | 5 | µA |
Key Features
- Drives an external N-channel MOSFET to replace a Schottky diode, enhancing efficiency and reducing power loss.
- Wide input supply voltage range from 2.5V to 80V.
- Internal 3V supply decoupling output (INTVCC) for additional power needs.
- Shutdown control input (SHDN) for low current mode operation.
- High operating temperature range from -40°C to 125°C.
- Low supply current of 5µA.
- Reverse battery protection up to -28V without damage.
Applications
- Automotive systems: Ideal for managing power in automotive environments due to its robust temperature range and protection features.
- Redundant power supplies: Ensures reliable power distribution in redundant systems by acting as an ideal diode.
- High-side switching applications: Suitable for high-side switch configurations where efficient power management is crucial.
- Power-over-Ethernet (PoE) systems: Can be used in PoE applications to manage power delivery efficiently.
Q & A
- What is the primary function of the LTC4372HDD#PBF?
The primary function is to drive an external N-channel MOSFET to replace a Schottky diode, improving efficiency and reducing power loss. - What is the input supply voltage range of the LTC4372HDD#PBF?
The input supply voltage range is from 2.5V to 80V. - How does the LTC4372HDD#PBF handle reverse battery conditions?
The component can handle reverse battery conditions up to -28V without being damaged. - What is the purpose of the INTVCC pin?
The INTVCC pin provides an internal 3V supply decoupling output for additional power needs. - How can the LTC4372HDD#PBF be shut down to a low current mode?
The component can be shut down by pulling the SHDN pin above 1.215V. - What are the typical applications of the LTC4372HDD#PBF?
Typical applications include automotive systems, redundant power supplies, high-side switching, and Power-over-Ethernet (PoE) systems. - What is the operating temperature range of the LTC4372HDD#PBF?
The operating temperature range is from -40°C to 125°C. - What is the supply current of the LTC4372HDD#PBF?
The supply current is typically 5µA. - Can the LTC4372HDD#PBF be used in high-voltage applications?
Yes, it is designed for high-voltage applications with a source voltage range from -28V to 100V. - What type of package does the LTC4372HDD#PBF come in?
The component comes in an 8-Lead (3mm × 3mm) Plastic DFN package.
