Overview
The LTC2950CDDB-1#TRMPBF, produced by Analog Devices Inc., is a micropower, wide input voltage range, pushbutton ON/OFF controller. This component is designed to manage power on and off sequences efficiently, making it suitable for various applications requiring precise control over power states. The LTC2950 features a pushbutton input with independently programmable ON and OFF timings, ensuring flexible and reliable operation.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage Range | 2.7V to 26.4V |
| Supply Current | 6µA |
| Package Type | 8-Pin 3mm × 2mm DFN, 8-Lead Plastic TSOT-23 |
| Operating Temperature Range | 0°C to 70°C |
| ESD Protection on PB Input | ±10kV HBM |
| KILL Comparator Input Threshold | 0.6V |
| Debounce Timer | 32ms internal timer |
| Power Off Sequence Timer | 1024ms after INT is set |
Key Features
- Independently programmable ON and OFF timings
- High input voltage PB pin with internal pull-up resistor
- EN output for DC/DC converter control (LTC2950-1) or circuit breaker control (LTC2950-2)
- Simple interface for graceful microprocessor shutdown
- Low supply current of 6µA
- Wide operating voltage range from 2.7V to 26.4V
- ±10kV ESD HBM protection on PB input
- Accurate 0.6V threshold on KILL comparator input
Applications
- Portable instrumentation meters
- Blade servers
- Portable customer service PDAs
- Desktop and notebook computers
- Adjustable pushbutton ON/OFF timers
Q & A
- What is the input voltage range of the LTC2950CDDB-1#TRMPBF?
The input voltage range is from 2.7V to 26.4V. - What is the supply current of the LTC2950CDDB-1#TRMPBF?
The supply current is 6µA. - What types of packages are available for the LTC2950CDDB-1#TRMPBF?
The component is available in 8-Pin 3mm × 2mm DFN and 8-Lead Plastic TSOT-23 packages. - What is the operating temperature range of the LTC2950CDDB-1#TRMPBF?
The operating temperature range is from 0°C to 70°C. - What is the ESD protection level on the PB input of the LTC2950CDDB-1#TRMPBF?
The ESD protection level is ±10kV HBM. - How does the LTC2950CDDB-1#TRMPBF handle power off sequences?
The component uses a 1024ms timer after the INT is set, and the power off sequence can be initiated by a high to low transition on the PB pin. - What is the purpose of the EN output in the LTC2950-1 and LTC2950-2 versions?
In the LTC2950-1, the EN output allows DC/DC converter control, while in the LTC2950-2, it allows circuit breaker control. - How does the LTC2950CDDB-1#TRMPBF support microprocessor shutdown?
The component provides a simple interface for graceful microprocessor shutdown. - What are some common applications of the LTC2950CDDB-1#TRMPBF?
Common applications include portable instrumentation meters, blade servers, portable customer service PDAs, desktop and notebook computers, and adjustable pushbutton ON/OFF timers. - What is the debounce timer duration for the PB input?
The debounce timer duration is 32ms.
