Overview
The LTC4359IDCB#TRPBF is a 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 ensures smooth current delivery without oscillation, even at light loads, and provides fast turn-off in case of power source failure or short-circuit. The LTC4359IDCB#TRPBF is particularly suited for automotive and telecom infrastructure due to its wide operating voltage range, reverse input protection, and high temperature rating.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Package / Case | 6-WFDFN Exposed Pad DFN-6 | |
| Product Status | Active | |
| FET Type | N-Channel | |
| Delay Time - ON | 200 µs | |
| Delay Time - OFF | 300 ns | |
| Current - Output (Max) | 220 µA | |
| Current - Supply | 150 µA | |
| Voltage - Supply | 4V ~ 80V | |
| Operating Temperature | -40°C ~ 85°C (TA) | |
| Mounting Type | Surface Mount | |
| Input Voltage Range | 4 V to 80 V | |
| Output Current | 120 µA | |
| Qualification | AEC-Q100 |
Key Features
- Drives an external N-channel MOSFET to replace a Schottky diode, reducing power consumption, heat dissipation, voltage loss, and PCB area.
- Wide operating voltage range: 4V to 80V.
- Reverse input protection to –40V.
- Low shutdown current: 9µA for load switch and 14µA for ideal diode applications.
- Smooth switchover without oscillation.
- Controls single or back-to-back N-channel MOSFETs.
- AEC-Q100 qualified for automotive applications.
- Available in 6-pin DFN, 8-lead MSOP, and 8-lead SO packages.
Applications
- Redundant power supplies.
- Telecom infrastructure.
- Automotive battery protection.
- Supply holdup.
- Computer systems/servers.
- Solar systems.
Q & A
- What is the primary function of the LTC4359IDCB#TRPBF? The primary function is to drive an external N-channel MOSFET to replace a Schottky diode, ensuring smooth current delivery and reducing power consumption.
- What is the operating voltage range of the LTC4359IDCB#TRPBF? The operating voltage range is 4V to 80V.
- Does the LTC4359IDCB#TRPBF have reverse input protection? Yes, it has reverse input protection to –40V.
- What is the shutdown current of the LTC4359IDCB#TRPBF? The shutdown current is 9µA for load switch and 14µA for ideal diode applications.
- Is the LTC4359IDCB#TRPBF suitable for automotive applications? Yes, it is AEC-Q100 qualified for automotive applications.
- What are the available package types for the LTC4359IDCB#TRPBF? It is available in 6-pin DFN, 8-lead MSOP, and 8-lead SO packages.
- What are some common applications of the LTC4359IDCB#TRPBF? Common applications include redundant power supplies, telecom infrastructure, automotive battery protection, supply holdup, computer systems/servers, and solar systems.
- How does the LTC4359IDCB#TRPBF handle power source failure or short-circuit? It minimizes reverse current transients with a fast turn-off in case of power source failure or short-circuit.
- Does the LTC4359IDCB#TRPBF support smooth switchover between power sources? Yes, it ensures smooth switchover without oscillation.
- What is the maximum operating temperature of the LTC4359IDCB#TRPBF? The maximum operating temperature is 85°C (TA).
