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Texas Instruments TPS3307-18DGNR
- Part No.:
- TPS3307-18DGNR
- Manufacturer:
- Texas Instruments
- Category:
- Supervisors
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
TPS3307-18DGNR.pdf
- Description:
- IC SUPERVISOR 3 CHANNEL 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,120
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Product details
Overview
TPS3307-18DGNR from Texas Instruments is a triple voltage supervisor IC designed for DSP, microcontroller, and microprocessor power sequencing and reset management. It monitors three independent supply rails-3.3V, 1.8V, and an adjustable input-with fixed 200ms reset delay, 40µA supply current, and operation from 2V to 6V VDD. It is used in industrial programmable controls and automotive systems requiring reliable multi-rail power-up supervision.
For engineers reviewing the TPS3307-18DGNR datasheet, TPS3307-18DGNR pinout, TPS3307-18DGNR application, or TPS3307-18DGNR equivalent, this page delivers verified specifications, package details, functional context, real-world use cases, and validated alternative options-all aligned to the exact DGN (HVSSOP-8) variant with AAP marking and tape-and-reel packaging.
Technical Context
The TPS3307-18DGNR implements three independent comparator-based sense channels with temperature-compensated 1.25V internal reference, enabling precise monitoring of 3.3V (VIT+ = 2.93V), 1.8V (VIT+ = 1.68V), and user-defined voltages ≥1.25V via external resistor dividers. Its dual active-reset outputs (RESET and RESET) support both low- and high-active system logic.
Reset assertion occurs when VDD rises above 1.1V at power-on or when any SENSEn falls below its respective VIT– threshold; recovery requires all inputs to exceed VIT+ and triggers a 200ms (typ) internal timer before deassertion. The manual reset (MR) input provides synchronous system-level reset control with 100ns minimum pulse width.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDD Range | 2V to 6V - supports wide-input industrial and battery-backed systems without external regulation. |
| SENSE1 Threshold | 2.93V (typ) - precisely monitors nominal 3.3V rail with ±30mV hysteresis for noise immunity. |
| SENSE2 Threshold | 1.68V (typ) - targets 1.8V core supplies with guaranteed detection down to 1.64V (min). |
| SENSE3 Threshold | 1.25V (fixed) - enables monitoring of any voltage >1.25V using external resistor divider. |
| Reset Delay | 200ms (typ) - ensures stable power-up timing without external capacitor or timing component. |
| Supply Current | 40µA (max) - enables ultra-low-power operation in always-on supervisory circuits. |
| Operating Temp | –40°C to +85°C - qualified for industrial and automotive under-hood environments. |
Pinout & Package
HVSSOP-8 (DGN) package: 3.0mm × 3.0mm body, 0.65mm pitch, 1.1mm max height, exposed thermal pad (PowerPAD™), RoHS-compliant NiPdAu lead finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - SENSE1 | Input | Monitors 3.3V supply; asserts reset if voltage drops below 2.93V (typ). |
| 2 - SENSE2 | Input | Monitors 1.8V supply; asserts reset if voltage drops below 1.68V (typ). |
| 3 - SENSE3 | Input | Adjustable monitor input referenced to 1.25V; supports custom rail supervision. |
| 4 - GND | Ground | System ground reference for all analog comparators and digital logic. |
| 5 - RESET | Output | Active-low open-drain reset signal; sinks up to 5mA, compatible with 1.8V/3.3V logic. |
| 6 - RESET | Output | Active-high push-pull reset signal; drives high to VDD, eliminates external pull-up. |
| 7 - MR | Input | Manual reset trigger; low pulse ≥100ns forces immediate reset assertion. |
| 8 - VDD | Supply | Main power input (2–6V); powers internal reference, comparators, and output drivers. |
Key Features
| Feature | Design Value |
|---|---|
| Triple independent voltage monitoring | Simultaneously supervises 3.3V, 1.8V, and user-defined rails-eliminates need for three discrete supervisors. |
| Fixed 200ms reset timeout | No external capacitor required; reduces BOM count and layout area while ensuring deterministic reset timing. |
| Dual active reset outputs | Provides both active-low (open-drain) and active-high (push-pull) signals-direct interface to diverse processor reset inputs. |
| 1.25V precision reference | Temperature-compensated internal reference enables accurate SENSE3 adjustment across –40°C to +85°C. |
| Ultra-low quiescent current | 40µA max IDD allows integration into battery-critical applications without compromising runtime. |
Applications
| Industrial Programmable Logic Controller (PLC) | Automotive Body Control Module (BCM) |
|---|---|
|
Use Scenario: Supervises 3.3V I/O, 1.8V FPGA core, and 5V sensor interface rails during cold cranking and load dump events. IC Role / Device Role / Timing Role: Triple-supervisor ensuring synchronized reset release only after all rails stabilize above thresholds. Use Value: Prevents firmware lockup by guaranteeing 200ms minimum reset hold time post-power-stabilization. |
Use Scenario: Monitors MCU core (1.8V), CAN transceiver (3.3V), and LIN bus regulator (adjustable) in vehicle door module. IC Role / Device Role / Timing Role: Fault-tolerant reset generator with manual override (MR) for diagnostic mode entry. Use Value: Dual RESET outputs eliminate level-shifting components; 40µA current extends sleep-mode battery life. |
| Portable Medical Infusion Pump | Industrial Ethernet Gateway |
|
Use Scenario: Validates battery-backed 3.3V MCU supply, 1.8V ADC reference, and adjustable motor driver rail during wake-from-sleep transitions. IC Role / Device Role / Timing Role: Power-on supervisor with MR input tied to emergency stop circuit for hardware-initiated reset. Use Value: 1.1V VDD turn-on threshold enables early reset assertion before brownout, improving fault recovery robustness. |
Use Scenario: Ensures proper boot sequence for dual-core ARM processor (1.8V core, 3.3V I/O) and PHY (adjustable 2.5V). IC Role / Device Role / Timing Role: Multi-rail sequencer with hysteresis (30mV min) rejecting transient noise on noisy factory-floor power rails. Use Value: SENSE3's 1.25V reference allows precise 2.5V supervision using standard 1% resistors-no trimming required. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triple-voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS3307-18DR | Same electrical specs; SOIC-8 (D) package, 2500-piece tape-and-reel, 6.4mm × 5.2mm footprint, no thermal pad. | Preferred where board space is unconstrained and thermal dissipation is not critical. | Select TPS3307-18DR for legacy SOIC layouts or cost-sensitive non-thermal designs. |
| TPS386000RGPT | Quad supervisor (4 inputs), 1.2V to 5.5V range, 2.5ms–10s programmable delay, 25µA IDD, QFN-20 package. | Supports higher channel count and configurable timing but requires PCB redesign and firmware calibration. | Choose TPS386000RGPT only when expanding beyond three rails or requiring field-programmable delay. |
Compared with TPS3307-18DGNR, TPS3307-18DR offers identical functionality in a larger SOIC package with lower thermal performance, while TPS386000RGPT adds flexibility at the cost of complexity, size, and qualification effort-making the DGN variant optimal for space-constrained, thermally demanding triple-rail systems.
Availability
TPS3307-18DGNR is available at Aetrix Electronics and suitable for industrial programmable controls, automotive body electronics, and portable medical devices requiring stable component supply, long-term lifecycle support, and HVSSOP-8 thermal performance.
Supply support for TPS3307-18DGNR 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
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and power management technologies with over 50 years of innovation in industrial and automotive electronics.
The TPS3307 family was engineered specifically for multi-rail DSP and microprocessor systems needing deterministic, capacitor-free reset timing and simultaneous 3.3V/1.8V/adjustable rail supervision in compact packages.
FAQ
What is the minimum VDD required to assert RESET on power-up for TPS3307-18DGNR?
The TPS3307-18DGNR asserts RESET when VDD rises above 1.1V, as specified in the Electrical Characteristics table. This ensures early reset activation before other system components power up, preventing undefined states. The TPS3307-18DGNR maintains RESET assertion until all SENSE inputs exceed their respective thresholds and the 200ms timer expires.
Does TPS3307-18DGNR require external capacitors for reset timing?
No, the TPS3307-18DGNR integrates a fixed 200ms (typ) reset delay timer and requires no external capacitor. This simplifies design, improves reliability, and saves PCB area compared to RC-based solutions. The TPS3307-18DGNR achieves this using an internal oscillator and counter, eliminating timing component variation and aging effects.
Can SENSE3 on TPS3307-18DGNR monitor a 2.5V rail?
Yes, SENSE3 on TPS3307-18DGNR can monitor a 2.5V rail using an external resistor divider that scales the input to 1.25V-the device's fixed internal reference. For example, a 1:1 divider (two equal resistors) maps 2.5V to 1.25V at SENSE3. The TPS3307-18DGNR datasheet confirms SENSE3 supports any voltage >1.25V via external scaling.
What is the function of the exposed thermal pad on the TPS3307-18DGNR HVSSOP package?
The exposed thermal pad on the TPS3307-18DGNR (DGN) package is a PowerPAD™ structure electrically connected to GND and thermally coupled to the PCB. It significantly improves heat dissipation-enabling 1.37W power rating at +70°C-and must be soldered to a dedicated GND copper pour with thermal vias per TI layout guidelines. The TPS3307-18DGNR's thermal performance depends on proper pad implementation.
Is TPS3307-18DGNR pin-compatible with TPS3307-25DGNR?
No, TPS3307-18DGNR and TPS3307-25DGNR are not pin-compatible in terms of supervision thresholds: both share identical pinout and package (HVSSOP-8), but SENSE2 is configured for 1.68V (1.8V rail) in the -18 variant versus 2.25V (2.5V rail) in the -25 variant. Swapping them without adjusting external dividers will cause incorrect reset behavior. The TPS3307-18DGNR and TPS3307-25DGNR are functionally distinct parts sharing only mechanical compatibility.
TPS3307-18DGNR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 3
- Voltage - Threshold:
- 1.68V, 2.93V, Adj
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active High/Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-HVSSOP
TPS3307-18DGNR FAQ
1.How can I place an order for TPS3307-18DGNR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS3307-18DGNR 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 TPS3307-18DGNR reliable?
The price and inventory of TPS3307-18DGNR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS3307-18DGNR is usually 5 days.
3.What payment methods are accepted for TPS3307-18DGNR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS3307-18DGNR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS3307-18DGNR?
TPS3307-18DGNR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS3307-18DGNR 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 TPS3307-18DGNR?
For technical support, including TPS3307-18DGNR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS3307-18DGNR requirements.
6.How does Aetrix verify that TPS3307-18DGNR is sourced from the original manufacturer or authorized distributors?
All TPS3307-18DGNR 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 TPS3307-18DGNR meets industry standards.
7.What is the process for return or replacement of TPS3307-18DGNR?
All TPS3307-18DGNR units undergo pre-shipment inspection (PSI). If there is an issue with TPS3307-18DGNR, 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 TPS3307-18DGNR part is unused and in its original packaging.
Return procedure for TPS3307-18DGNR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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