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Analog Devices Inc. TMP01ES-REEL
- Part No.:
- TMP01ES-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Thermostats - Solid State
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TMP01ES-REEL.pdf
- Description:
- THERMOSTAT PROG ACT HIGH 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,593
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Product details
Overview
TMP01ES-REEL from Analog Devices is a programmable temperature controller IC featuring dual open-collector outputs (OVER/UNDER), user-programmable trip points via external resistors, ±1.0°C typical accuracy over −55°C to +125°C, 5 mV/K VPTAT output, and 2.5 V reference voltage - used in thermal protection circuits for power supplies and industrial controllers.
For engineers reviewing the TMP01ES-REEL datasheet, TMP01ES-REEL pinout, TMP01ES-REEL application, or TMP01ES-REEL equivalent, key selection criteria include hysteresis programmability via VREF load current, open-collector sink capability up to 20 mA, single-supply operation from 4.5 V to 13.2 V, and SOIC-8 package compatibility with board-level thermal monitoring designs.
Technical Context
The TMP01ES-REEL integrates a band gap temperature sensor generating a precise 5 mV/K VPTAT output and a 2.5 V low-drift reference. Its window comparator architecture compares VPTAT against externally set high/low thresholds derived from VREF using resistor dividers.
Hysteresis is programmable via total current drawn from VREF (7 μA base + 5 μA/°C scaling), enabling deterministic reset behavior after trip activation. Both comparators share the same VPTAT input and use internal current mirroring to generate polarity-corrected hysteresis offset without overlap.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VPTAT Scale Factor | 5 mV/K - enables direct Kelvin-to-voltage conversion; 1.49 V at 25°C provides stable baseline for setpoint calculation. |
| Temperature Accuracy (E Grade) | ±1.0°C over −40°C to +85°C - ensures reliable trip point repeatability in commercial industrial environments. |
| VREF Output Voltage | 2.500 V ±5 mV at 25°C - serves as precision reference for resistor-divider programming of SET HIGH/SET LOW voltages. |
| Open-Collector Sink Current | 20 mA max - allows direct drive of small relays or optocouplers without external buffering in low-power control paths. |
| Supply Range | 4.5 V to 13.2 V - supports wide-input industrial rails and battery-backed systems without regulation overhead. |
| Quiescent Current | 500 μA max at 5 V - minimizes self-heating impact (<0.5°C error) and extends runtime in always-on thermal monitors. |
| Hysteresis Scaling | 5 μA/°C + 7 μA zero-offset - permits accurate, predictable hysteresis band tuning via single VREF load resistor. |
Pinout & Package
The TMP01ES-REEL is housed in an 8-lead SOIC (R-8) package with standard surface-mount footprint and thermal characteristics (θJA = 158°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - V+ | Positive supply input | Accepts 4.5–13.2 V; powers internal reference, sensor, and comparators; decoupling capacitor required. |
| 2 - SET HIGH | High-temperature trip threshold input | Compares against VPTAT; tied to resistor divider from VREF to set upper limit (e.g., 75°C). |
| 3 - SET LOW | Low-temperature trip threshold input | Compares against VPTAT; tied to resistor divider from GND to set lower limit (e.g., 15°C). |
| 4 - GND | Analog ground reference | Return path for VPTAT, VREF, and comparator inputs; must be low-impedance and thermally coupled to sensor die. |
| 5 - UNDER | Open-collector output (low-temp active) | Sinks up to 20 mA when VPTAT falls below SET LOW; requires external pull-up for logic-level signaling. |
| 6 - OVER | Open-collector output (high-temp active) | Sinks up to 20 mA when VPTAT exceeds SET HIGH; electrically isolated from UNDER for independent control. |
| 7 - VREF | 2.5 V precision reference output | Source for resistor-divider programming; load current determines hysteresis magnitude (IVREF = 7 μA + 5 μA/°C). |
| 8 - VPTAT | Temperature-proportional voltage output | 1.49 V at 25°C, +5 mV/K slope; buffered analog output usable for ADC interfacing or calibration feedback. |
Key Features
| Feature | Design Value |
|---|---|
| User-programmable trip points | Two independent thresholds (SET HIGH/SET LOW) set via external resistor dividers from VREF - enables custom thermostat windows without firmware. |
| Programmable hysteresis | Hysteresis band defined by VREF load current (7 μA base + 5 μA/°C) - eliminates oscillation near trip points and ensures clean state transitions. |
| Integrated 2.5 V reference | 2.500 V ±5 mV at 25°C with −10 ppm/°C drift - eliminates need for external reference in setpoint generation circuits. |
| Direct relay/opto drive | 20 mA open-collector sink per output - drives small electromechanical relays or LED inputs without transistor buffers in space-constrained designs. |
| Wide operating range | −55°C to +125°C ambient operation with ±1.5°C accuracy across full range - suitable for under-hood automotive, industrial enclosures, and outdoor equipment. |
Applications
| Over/Under Temperature Alarm | Board-Level Thermal Protection |
|---|---|
|
Use Scenario: Monitoring CPU or FPGA junction temperature in embedded computing systems to prevent thermal throttling or shutdown. IC Role / Device Role / Timing Role: TMP01ES-REEL acts as autonomous analog thermostat, comparing die temperature (via remote sensor or local mounting) to preset limits and asserting OVER/UNDER signals. Use Value: Eliminates microcontroller polling overhead and software latency; provides deterministic response within 25 μs settling time after temperature crossing. |
Use Scenario: Detecting abnormal heating on PCBs housing high-current DC-DC converters or motor drivers. IC Role / Device Role / Timing Role: TMP01ES-REEL senses local board temperature through conduction; its VPTAT output feeds ADC while OVER/UNDER outputs trigger fan control or fault latching. Use Value: Enables dual-path monitoring - analog voltage for trending analysis and digital outputs for immediate safety action - all from one SOIC-8 device. |
| Industrial Process Controller | Electronic Thermostat |
|
Use Scenario: Regulating fluid temperature in HVAC chillers or chemical reactors where stability and hysteresis control are critical. IC Role / Device Role / Timing Role: TMP01ES-REEL provides setpoint comparison and hysteresis in analog control loop; VREF and VPTAT support calibration and diagnostics. Use Value: Reduces BOM count by integrating reference, sensor, and dual-comparator functions - simplifies CE/FCC compliance testing for analog subsystems. |
Use Scenario: Residential or commercial wall-mounted thermostats requiring precise ambient air temperature sensing and relay actuation. IC Role / Device Role / Timing Role: TMP01ES-REEL replaces discrete op-amps and references; SET HIGH/SET LOW define heating/cooling bands; UNDER/OVER drive TRIAC or relay drivers. Use Value: Achieves ±1.0°C accuracy over −25°C to +60°C ambient range with no software compensation - lowers system calibration cost and field failure rate. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar temperature controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC2997IMS#TRPBF | Digital I²C interface, integrated ADC, fixed 1°C hysteresis, no VPTAT analog output. | Requires MCU host; suited for digitally managed systems needing multi-sensor aggregation. | Choose LTC2997IMS#TRPBF when digital bus integration and multi-zone monitoring outweigh need for analog flexibility. |
| MAX6505UTA+T | Fixed 125°C overtemp-only trip, no low-temp detection, no hysteresis programming, SOT23-6 package. | Single-threshold protection only; lacks window comparator functionality and VREF/VPTAT outputs. | Choose MAX6505UTA+T only for simple overtemperature cutoff where size and cost dominate design priorities. |
Compared with TMP01ES-REEL, LTC2997IMS#TRPBF offers digital configurability but removes analog programmability and real-time voltage outputs, while MAX6505UTA+T sacrifices dual-threshold control and hysteresis tuning for ultra-small footprint - making TMP01ES-REEL uniquely balanced for analog-centric thermal management.
Availability
TMP01ES-REEL is available at Aetrix Electronics and suitable for industrial process control, board-level thermal protection, and electronic thermostat designs requiring stable component supply, long-lifecycle support, and SOIC-8 compatibility.
Supply support for TMP01ES-REEL includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, communications, and instrumentation markets since 1965.
The TMP01 product line delivers monolithic analog temperature controllers with integrated reference, sensor, and comparator functions - designed specifically for applications demanding deterministic thermal trip behavior without microcontroller dependency.
FAQ
What is the operating temperature range of the TMP01ES-REEL?
The TMP01ES-REEL operates from −55°C to +125°C with guaranteed ±1.5°C accuracy across this full range. At the more constrained −40°C to +85°C commercial grade range, its typical accuracy improves to ±1.0°C. This wide range supports deployment in harsh environments such as automotive engine bays, industrial motor drives, and outdoor telecom equipment where ambient extremes are common. The TMP01ES-REEL maintains performance without external calibration across this span.
How is hysteresis programmed on the TMP01ES-REEL?
Hysteresis on the TMP01ES-REEL is programmed by setting the load current on the VREF pin (Pin 7), which scales linearly as IVREF = 7 μA + 5 μA/°C. For example, a 17 μA load yields 2°C hysteresis. This current is mirrored internally to generate a precise hysteresis offset voltage at the comparator inputs. No additional components beyond the VREF load resistor are needed - the TMP01ES-REEL handles hysteresis generation autonomously once IVREF is established.
Can the TMP01ES-REEL drive a relay directly?
Yes, the TMP01ES-REEL can drive small electromagnetic relays directly via its open-collector OVER or UNDER outputs, each rated for 20 mA sink current. When paired with a 5 V supply and a 250 Ω pull-up resistor, it delivers sufficient base drive for low-coil-power reed relays or optocouplers. However, for higher-current loads (>20 mA) or inductive switching, an external MOSFET or Darlington stage is recommended to avoid exceeding the TMP01ES-REEL's absolute maximum ratings and maintain long-term reliability.
What package type does the TMP01ES-REEL use?
The TMP01ES-REEL uses an 8-lead SOIC (Small Outline Integrated Circuit) package, also designated R-8 in Analog Devices' ordering nomenclature. It features standard 1.27 mm lead pitch, gull-wing leads, and a body size of 4.9 mm × 3.9 mm. This surface-mount package supports automated assembly, offers moderate thermal resistance (θJA = 158°C/W), and is pin-compatible with other SOIC-8 temperature ICs for layout reuse in thermal sensing modules.
Does the TMP01ES-REEL require external components to function as a thermostat?
Yes, the TMP01ES-REEL requires three external resistors (R1, R2, R3) connected between VREF, SET HIGH, SET LOW, and GND to establish temperature trip points and hysteresis. These form a resistor ladder that divides VREF into precise voltage thresholds corresponding to desired Celsius/Kelvin setpoints. A 0.1 μF bypass capacitor on V+ is also mandatory. No op-amps, ADCs, or microcontrollers are needed - the TMP01ES-REEL performs complete analog thermostat operation with these minimal passive components.
TMP01ES-REEL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Trip Temperature Threshold:
- Cold, Hot
- Switching Temperature:
- Programmable
- Accuracy:
- ±1°C
- Current - Output (Max):
- 50mA
- Output Type:
- Open Collector
- Output:
- Active High
- Output Function:
- /OverTemp, /UnderTemp
- Selectable Hysteresis:
- Yes
- Features:
- -
- Voltage - Supply:
- 4.5 V ~ 13.2 V
- Current - Supply:
- 500µA
- Operating Temperature:
- -55°C ~ 125°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-SOIC
TMP01ES-REEL FAQ
1.How can I place an order for TMP01ES-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for TMP01ES-REEL on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TMP01ES-REEL reliable?
The price and inventory of TMP01ES-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMP01ES-REEL is usually 5 days.
3.What payment methods are accepted for TMP01ES-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMP01ES-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TMP01ES-REEL?
TMP01ES-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TMP01ES-REEL order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TMP01ES-REEL?
For technical support, including TMP01ES-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMP01ES-REEL requirements.
6.How does Aetrix verify that TMP01ES-REEL is sourced from the original manufacturer or authorized distributors?
All TMP01ES-REEL products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TMP01ES-REEL meets industry standards.
7.What is the process for return or replacement of TMP01ES-REEL?
All TMP01ES-REEL units undergo pre-shipment inspection (PSI). If there is an issue with TMP01ES-REEL, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TMP01ES-REEL part is unused and in its original packaging.
Return procedure for TMP01ES-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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