Overview
The LTC4365HTS8-1#TRMPBF, manufactured by Analog Devices Inc., is a highly versatile overvoltage, undervoltage, and reverse supply protection controller. This device is designed to protect applications from power supply input voltages that may be too high, too low, or even negative. It achieves this by controlling the gate voltages of external N-channel MOSFETs to ensure the output stays within a safe operating range.
The LTC4365HTS8-1#TRMPBF is particularly suited for applications requiring robust voltage protection, such as in automotive, industrial automation, and portable instrumentation. Its compact 8-lead TSOT-23 package and low operating current make it an ideal choice for space-constrained and power-efficient designs.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| VIN Input Voltage Range | 2.5 | - | 34 | V |
| Protection Range | -40 | - | 60 | V |
| Input Supply Current (SHDN = 0V, VIN = VOUT) | 10 | 125 | 150 | µA |
| Shutdown Current (SHDN = 0V, VIN = VOUT) | 10 | - | - | 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 |
| Operating Temperature Range | -40 | - | 125 | °C |
| Package Type | 8-Lead Plastic TSOT-23 | - | ||
Key Features
- Wide Operating Voltage Range: 2.5V to 34V, with protection up to 60V and reverse supply protection to -40V.
- Adjustable Undervoltage and Overvoltage Protection: Configurable using an external resistive divider.
- Low Operating Current: 125µA in normal operation and 10µA in shutdown mode.
- Compact Package: 8-Lead TSOT-23 package.
- Charge Pump Enhancement: Enhances external N-channel MOSFETs.
- No Input Capacitor or TVS Required: For most applications.
- Fast Recovery from Fault: The LTC4365-1 version has a 1ms recovery time.
- Blocks 50Hz and 60Hz AC Power: Prevents AC power from affecting the system.
- Shutdown and Fault Indication: External control and status indication through the shutdown pin and fault output.
- AEC-Q100 Qualified for Automotive Applications: Ensures reliability and quality for automotive use.
Applications
- Automotive Systems: Protects against voltage surges and reverse polarity in automotive applications.
- Industrial Automation: Ensures reliable operation in industrial environments with varying power conditions.
- Portable Instrumentation: Suitable for battery-powered devices that require robust voltage protection.
- Laptops and Mobile Devices: Protects against overvoltage and undervoltage conditions in portable electronics.
Q & A
- What is the operating voltage range of the LTC4365HTS8-1#TRMPBF?
The operating voltage range is from 2.5V to 34V, with protection up to 60V and reverse supply protection to -40V.
- How does the LTC4365HTS8-1#TRMPBF protect against overvoltage and undervoltage conditions?
It protects by controlling the gate voltages of external N-channel MOSFETs and allows adjustable undervoltage and overvoltage protection using an external resistive divider.
- What is the typical operating current of the LTC4365HTS8-1#TRMPBF?
The typical operating current is 125µA in normal operation and 10µA in shutdown mode.
- Does the LTC4365HTS8-1#TRMPBF require an input capacitor or TVS for most applications?
No, it does not require an input capacitor or TVS for most applications.
- What is the recovery time from fault for the LTC4365-1 version?
The recovery time from fault for the LTC4365-1 version is 1ms.
- Is the LTC4365HTS8-1#TRMPBF qualified for automotive applications?
Yes, it is AEC-Q100 qualified for automotive applications.
- What package type does the LTC4365HTS8-1#TRMPBF come in?
It comes in an 8-Lead Plastic TSOT-23 package.
- How does the LTC4365HTS8-1#TRMPBF block AC power?
It blocks 50Hz and 60Hz AC power to prevent it from affecting the system.
- What is the operating temperature range of the LTC4365HTS8-1#TRMPBF?
The operating temperature range is from -40°C to 125°C.
- Does the LTC4365HTS8-1#TRMPBF have a shutdown and fault indication feature?
Yes, it has external control and status indication through the shutdown pin and fault output.
