LTC2995 - Temperature Sensor and Dual Voltage Monitor with Alert Outputs
Features
- Monitors Temperature and Two Voltages
- Voltage Output Proportional to Temperature
- Adjustable Thresholds for Temperature and Voltage
- ±1°C Remote Temperature Accuracy
- ±2°C Internal Temperature Accuracy
- ±1.5% Voltage Threshold Accuracy
- 3.5ms Update Time
- 2.25V to 5.5V Supply Voltage
- Input Glitch Rejection
- Adjustable Reset Timeout
- 220μA Quiescent Current
- Open Drain Alert Outputs
- Available in 3mm × 3mm QFN Package
Typical Application
Description
The LTC®2995 is a high accuracy temperature sensor and dual supply monitor. It converts the temperature of an external diode sensor and/or its own die temperature to an analog output voltage while rejecting errors due to noise and series resistance. Two supply voltages and the measured temperature are compared against upper and lower limits set with resistive dividers. If a threshold is exceeded, the device communicates an alert by pulling low the correspondent open drain logic output.
The LTC2995 gives ±1°C accurate temperature results using commonly available NPN or PNP transistors or temperature diodes built into modern digital devices. Voltages are monitored with 1.5% accuracy. A 1.8V reference output simplifies threshold programming and can be used as an ADC reference input.
The LTC2995 provides an accurate, low power solution for temperature and voltage monitoring in a compact 3mm × 3mm QFN package.
Packaging
CAD Symbols and Footprints: The downloadable Zip file below contains the schematic symbol and PCB footprints.
For complete and up to date package information and drawings, please refer to our packaging page
| Part Number | Package | Code | Temp | Package Drawing |
RoHS |
|---|---|---|---|---|---|
| LTC2995CUD#PBF | 3x3 QFN-20 | UD | C | 05-08-1720 | Yes |
| LTC2995CUD#TRPBF | 3x3 QFN-20 | UD | C | 05-08-1720 | Yes |
| LTC2995HUD#PBF | 3x3 QFN-20 | UD | H | 05-08-1720 | Yes |
| LTC2995HUD#TRPBF | 3x3 QFN-20 | UD | H | 05-08-1720 | Yes |
| LTC2995IUD#PBF | 3x3 QFN-20 | UD | I | 05-08-1720 | Yes |
| LTC2995IUD#TRPBF | 3x3 QFN-20 | UD | I | 05-08-1720 | Yes |
Order Info
- Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
- Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
- Please refer to our general ordering information or the product datasheet for more details
Package Variations and Pricing
| Part Number | Package | Temp | Price (1-99) |
Price (1k)* |
RoHS | |
|---|---|---|---|---|---|---|
| LTC2995CUD#PBF | 3x3 QFN-20 | C | $3.50 | $2.45 | Yes | |
| LTC2995CUD#TRPBF | 3x3 QFN-20 | C | $2.51 | Yes | ||
| LTC2995HUD#PBF | 3x3 QFN-20 | H | $4.63 | $3.24 | Yes | |
| LTC2995HUD#TRPBF | 3x3 QFN-20 | H | $3.30 | Yes | ||
| LTC2995IUD#PBF | 3x3 QFN-20 | I | $4.03 | $2.82 | Yes | |
| LTC2995IUD#TRPBF | 3x3 QFN-20 | I | $2.88 | Yes | ||
| Buy Now • Request Samples | ||||||
Demo Boards
Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.| Part Number | Description | Price | Documentation |
|---|---|---|---|
| DC1871A | LTC2995 Temperature Sensor and Dual Voltage Monitor with Alert Outputs | $50.00 | |
| Buy Now | |||
Applications
- Network Servers
- Core, I/O Voltage Monitors
- Desktop and Notebook Computers
- Environmental Monitoring
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Design Tools
LTspice
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Models for the following parts are available in LTspice:
LTC2995
Technical Support
- For immediate technical assistance, contact your local sales office or distributor or call 1-800-4-LINEAR (US customers only) or 408-432-1900.
- For less urgent requests, please complete our Technical Support Request Form. Please allow 2-3 business days for reply.
