Overview
The LTC3350IUHF#TRPBF, manufactured by Analog Devices Inc., is a high-current supercapacitor backup controller and system monitor. This device is designed to charge and monitor a series stack of one to four supercapacitors, making it ideal for backup power applications in various industrial and critical systems. It features a synchronous step-down converter for efficient power management and includes comprehensive monitoring and control capabilities through an I2C/SMBus interface.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| VIN Input Supply Voltage | 4.5 | 35 | V | |
| IQ Input Quiescent Current | 4 | mA | ||
| Operating Junction Temperature | -40 | 125 | °C | |
| INFET Rise Time | 560 | μs | ||
| INFET Fall Time | 1.5 | μs | ||
| OUTFET Rise Time | 0.13 | μs | ||
| OUTFET Fall Time | 0.26 | μs | ||
| PFI Input Threshold (Falling Edge) | 1.147 | 1.17 | 1.193 | V |
| PFI Hysteresis | 30 | mV | ||
| Package | 38-QFN (5x7) |
Key Features
- Synchronous step-down converter for efficient power conversion.
- Charges and monitors a series stack of one to four supercapacitors.
- I2C/SMBus interface for comprehensive monitoring and control.
- Overtemperature protection to ensure device reliability.
- Power-fail comparator with adjustable threshold and hysteresis.
- Low quiescent current to minimize standby power consumption.
- Automotive-grade versions available for use in automotive applications.
Applications
- Supercapacitor backup systems in industrial and critical applications.
- Emergency power systems for ensuring continuous operation during power failures.
- Energy storage and power conditioning systems.
- Backup power for industrial systems, including those in harsh environments.
Q & A
- What is the primary function of the LTC3350IUHF#TRPBF? The primary function is to charge and monitor a series stack of one to four supercapacitors, providing backup power and system monitoring.
- What is the input supply voltage range for the LTC3350IUHF#TRPBF? The input supply voltage range is from 4.5V to 35V.
- What interface does the LTC3350IUHF#TRPBF use for monitoring and control? It uses an I2C/SMBus interface.
- Does the LTC3350IUHF#TRPBF have overtemperature protection? Yes, it includes overtemperature protection to protect the device during momentary overload conditions.
- What is the operating junction temperature range for the LTC3350IUHF#TRPBF? The operating junction temperature range is from -40°C to 125°C.
- Is the LTC3350IUHF#TRPBF suitable for automotive applications? Yes, automotive-grade versions of the LTC3350 are available.
- What type of package does the LTC3350IUHF#TRPBF come in? It comes in a 38-QFN (5x7) package.
- What is the quiescent current of the LTC3350IUHF#TRPBF? The quiescent current is typically 4mA.
- Can the LTC3350IUHF#TRPBF be used in emergency power systems? Yes, it is suitable for emergency power systems to ensure continuous operation during power failures.
- Does the LTC3350IUHF#TRPBF support power-fail detection? Yes, it includes a power-fail comparator with adjustable threshold and hysteresis.
