Overview
The TMP01EP, produced by Analog Devices Inc., is a low power, programmable temperature controller and sensor. It generates a voltage output proportional to absolute temperature and provides control signals from one of two outputs when the device is either above or below a specific temperature range. The TMP01EP combines a bandgap voltage reference with a pair of matched comparators, allowing for user-programmable temperature trip points and hysteresis. This device is particularly useful for applications requiring precise temperature sensing and control.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Supply Voltage | V+ | -0.3 | - | +15 | V |
| Operating Temperature Range | TA | -55 | - | +150 | °C |
| Temperature Accuracy (Typical) | - | - | ±1.0 | - | °C |
| Quiescent Current (Max) | - | - | 500 μA | - | - |
| Output Current (Open-Collector Outputs) | - | - | 20 mA | - | - |
| VPTAT Output Voltage at 25°C | VPTAT | - | 1.49 V | - | - |
| Scale Factor of VPTAT | TCVPTAT | - | 5 mV/K | - | - |
Key Features
- Temperature-proportional voltage output
- User-programmable temperature trip points
- User-programmable hysteresis
- 20 mA open-collector trip point outputs, TTL/CMOS compatible
- Single-supply operation (4.5 V to 13.2 V)
- Available in 8-pin mini PDIP, SOIC, and TO-99 packages
- Low quiescent current of 500 μA (max) at 5 V supply
- Utilizes proprietary thin-film resistors and production laser trimming for high accuracy and linearity
Applications
- Over/under temperature sensor and alarm
- Board-level temperature sensing
- Temperature controllers
- Electronic thermostats
- Thermal protection
- HVAC systems
- Industrial process control
- Remote sensors
Q & A
- What is the primary function of the TMP01EP?
The TMP01EP is a temperature sensor that generates a voltage output proportional to absolute temperature and provides control signals when the device is above or below specific temperature ranges.
- How are the temperature trip points and hysteresis programmed on the TMP01EP?
The temperature trip points and hysteresis are programmed using user-selected external resistors. For high volume production, these resistors can be available on-board.
- What is the temperature accuracy of the TMP01EP?
The TMP01EP has a typical temperature accuracy of ±1.0°C over the rated temperature range.
- What are the available packages for the TMP01EP?
The TMP01EP is available in 8-pin mini PDIP, SOIC, and TO-99 packages.
- What is the maximum quiescent current of the TMP01EP?
The maximum quiescent current is 500 μA when operating from a 5 V supply.
- Can the TMP01EP drive control relays directly?
Yes, the open-collector outputs are capable of sinking 20 mA, enabling the TMP01EP to drive control relays directly.
- What is the operating temperature range of the TMP01EP?
The operating temperature range is from -55°C to +150°C.
- How is hysteresis programmed on the TMP01EP?
Hysteresis is programmed by setting a specific load on the reference voltage output VREF, which determines the hysteresis current.
- What types of applications is the TMP01EP suitable for?
The TMP01EP is suitable for over/under temperature sensors, board-level temperature sensing, temperature controllers, electronic thermostats, thermal protection, HVAC systems, industrial process control, and remote sensors.
- What is the scale factor of the VPTAT output voltage?
The scale factor of the VPTAT output voltage is 5 mV/K.
