Overview
The LTC4365CDDB#TRPBF, produced by Analog Devices Inc., is a versatile power supply protection controller designed to safeguard applications from overvoltage, undervoltage, and reverse supply conditions. This device ensures reliable operation by controlling the gate voltages of external N-channel MOSFETs, thereby protecting the system from potentially damaging input voltages. It is particularly useful in automotive and industrial applications where power supply stability is critical.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Input Voltage Range | 2.5 | - | 34 | V |
| Overvoltage Protection | - | - | 60 | V |
| Reverse Supply Protection | -40 | - | - | V |
| Operating Current | 10 | 125 | 150 | µA |
| Shutdown Current | 10 | - | 25 | µA |
| UV Input Threshold Voltage | 492.5 | 500 | 507.5 | mV |
| OV Input Threshold Voltage | 492.5 | 500 | 507.5 | mV |
| UV Input Hysteresis | 20 | 25 | 32 | mV |
| OV Input Hysteresis | 20 | 25 | 32 | mV |
| Package Type | - | - | 8-Lead DFN | - |
| Operating Temperature Range | -40 | - | 125 | °C |
Key Features
- Adjustable undervoltage and overvoltage protection range
- No input capacitor or TVS required for most applications
- Charge pump enhances external N-channel MOSFET
- Low operating current: 125µA
- Low shutdown current: 10µA
- Compact 8-lead, 3mm × 2mm DFN package
- Blocks 50Hz and 60Hz AC power (LTC4365), fast (1ms) recovery from fault (LTC4365-1)
Applications
The LTC4365CDDB#TRPBF is suitable for a variety of applications, including:
- Automotive systems: Protects against voltage transients and reverse polarity conditions.
- Industrial power supplies: Ensures stable operation despite input voltage fluctuations.
- Telecommunications: Safeguards equipment from overvoltage and undervoltage conditions.
- Medical devices: Provides reliable power supply protection in critical medical equipment.
Q & A
- What is the primary function of the LTC4365CDDB#TRPBF?
The primary function is to protect applications from overvoltage, undervoltage, and reverse supply conditions by controlling the gate voltages of external N-channel MOSFETs. - What is the input voltage range of the LTC4365CDDB#TRPBF?
The input voltage range is from 2.5V to 34V. - How does the LTC4365CDDB#TRPBF protect against AC power?
The LTC4365 blocks 50Hz and 60Hz AC power, while the LTC4365-1 offers fast (1ms) recovery from fault conditions. - What is the typical operating current of the LTC4365CDDB#TRPBF?
The typical operating current is 125µA. - What package types are available for the LTC4365CDDB#TRPBF?
The device is available in an 8-lead, 3mm × 2mm DFN package. - What is the operating temperature range of the LTC4365CDDB#TRPBF?
The operating temperature range is from -40°C to 125°C. - Does the LTC4365CDDB#TRPBF require an input capacitor or TVS for most applications?
No, it does not require an input capacitor or TVS for most applications. - How does the charge pump function in the LTC4365CDDB#TRPBF?
The charge pump enhances the external N-channel MOSFET. - What are some common applications of the LTC4365CDDB#TRPBF?
Common applications include automotive systems, industrial power supplies, telecommunications, and medical devices. - Is the LTC4365CDDB#TRPBF RoHS compliant?
Yes, the LTC4365CDDB#TRPBF is RoHS compliant.
