Overview
The LTC4359HDCB#WTRPBF is a positive high voltage ideal diode controller produced by Analog Devices Inc. This device is designed to drive an external N-channel MOSFET, effectively replacing a Schottky diode in various power management applications. It features reverse input protection and is particularly suited for use in redundant power supplies and telecom infrastructure. The LTC4359HDCB#WTRPBF is available in a 6-lead DFN (2mm x 3mm) package and is qualified to the AEC-Q100 standard, making it suitable for automotive applications.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Package / Case | 6-WFDFN Exposed Pad | |
| FET Type | N-Channel | |
| Ratio - Input:Output | N:1 | |
| Internal Switch(s) | No | |
| Delay Time - ON | 200 µs | µs |
| Delay Time - OFF | 300 ns | ns |
| Current - Output (Max) | 220 µA | µA |
| Current - Supply | 150 µA | µA |
| Voltage - Supply | 4 V to 80 V | V |
| Operating Temperature | -40°C to 125°C | °C |
| Mounting Type | Surface Mount | |
| Qualification | AEC-Q100 |
Key Features
- Ideal Diode Control: The LTC4359HDCB#WTRPBF controls the forward-voltage drop across the MOSFET, effectively replacing a Schottky diode and reducing power dissipation.
- Reverse Input Protection: The device includes protection against reverse input voltages, ensuring the system remains safe under adverse conditions.
- Low Supply Current: The device operates with a supply current of 150 µA, making it energy-efficient.
- Wide Operating Voltage Range: It can operate within a supply voltage range of 4 V to 80 V, making it versatile for various applications.
- Automotive Qualification: Qualified to the AEC-Q100 standard, it is suitable for use in automotive applications.
Applications
- Redundant Power Supplies: The LTC4359HDCB#WTRPBF is ideal for ensuring reliable power supply in redundant systems.
- Telecom Infrastructure: It is used in telecom infrastructure to manage power distribution efficiently.
- Automotive Systems: Due to its AEC-Q100 qualification, it is suitable for various automotive power management applications.
Q & A
- What is the primary function of the LTC4359HDCB#WTRPBF?
The primary function of the LTC4359HDCB#WTRPBF is to control an external N-channel MOSFET, acting as an ideal diode to reduce power dissipation and provide reverse input protection.
- What is the package type of the LTC4359HDCB#WTRPBF?
The LTC4359HDCB#WTRPBF is packaged in a 6-lead DFN (2mm x 3mm) with an exposed pad).
- What is the operating supply voltage range of the LTC4359HDCB#WTRPBF?
The operating supply voltage range is from 4 V to 80 V).
- What is the maximum operating temperature of the LTC4359HDCB#WTRPBF?
The maximum operating temperature is 125°C).
- Is the LTC4359HDCB#WTRPBF qualified for automotive use?
Yes, it is qualified to the AEC-Q100 standard, making it suitable for automotive applications).
- What is the typical supply current of the LTC4359HDCB#WTRPBF?
The typical supply current is 150 µA).
- What type of FET does the LTC4359HDCB#WTRPBF control?
The LTC4359HDCB#WTRPBF controls an N-channel MOSFET).
- What is the delay time for turning the MOSFET on and off?
The delay time for turning the MOSFET on is 200 µs, and for turning it off is 300 ns).
- What are some common applications of the LTC4359HDCB#WTRPBF?
Common applications include redundant power supplies, telecom infrastructure, and automotive systems).
- How does the LTC4359HDCB#WTRPBF protect against reverse input voltages?
The device includes components that protect against reverse input voltages by preventing current flow into the device when negative voltage is present on the input).
