My Inquiry
My Account
Texas Instruments TPS3707-50D
- Part No.:
- TPS3707-50D
- Manufacturer:
- Texas Instruments
- Category:
- Supervisors
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TPS3707-50D.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:594
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS3707-50D from Texas Instruments is a precision 5-V supply voltage supervisor IC with active-low and active-high reset outputs, power-fail comparator (PFI/PFO), manual reset input (MR), and fixed 200-ms power-on reset delay. It operates from 2 V to 6 V, draws ≤50 µA supply current, and is rated for –40°C to 85°C. Used in microcontroller-based systems requiring reliable power sequencing and brownout detection.
For engineers reviewing the TPS3707-50D datasheet, TPS3707-50D pinout, TPS3707-50D application, or TPS3707-50D equivalent, key selection criteria include dual-reset polarity support, 4.55 V threshold accuracy, PFI hysteresis of 10 mV, SOIC-8 package compatibility, and absence of watchdog functionality-distinguishing it from TPS3705-xx variants.
Technical Context
The TPS3707-50D implements dual-output supervision: RESET (active-low) and RESET (active-high), enabling direct interface with processors requiring either polarity. Its internal reference (1.25 V) and resistor divider set VIT– = 4.55 V ±2.5% over temperature, with 70 mV hysteresis on VDD monitoring.
It integrates a dedicated power-fail comparator (PFI input, PFO output) with 1.25 V threshold and 10 mV hysteresis, supporting external voltage monitoring via resistor dividers. Unlike TPS3705-xx, it omits watchdog timer circuitry (no WDI/WDO pins), simplifying designs where system-level reset coordination suffices.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2 V to 6 V - supports wide-input industrial and automotive rails without external regulation |
| VDD Threshold (VIT–) | 4.55 V (±2.5%) - precise 5-V rail monitoring with guaranteed trip point across –40°C to 85°C |
| Reset Delay Time | 200 ms (fixed, no capacitor) - ensures stable power-up before processor release, eliminating timing component variance |
| Supply Current (IDD) | ≤50 µA - enables battery-backed operation in portable equipment with minimal quiescent drain |
| PFI Threshold Voltage | 1.25 V (±0.05 V) - allows accurate external rail monitoring (e.g., 12 V via 910k/120k divider) with low sensitivity to noise |
| Output Drive Strength | 2.5 mA sink (RESET), 800 µA source (RESET) - directly drives MCU reset inputs without pull-up/pull-down resistors |
| Propagation Delay (VDD→RESET) | 3–5 µs - fast response to supply collapse, critical for real-time fault containment |
Pinout & Package
TPS3707-50D is available in 8-pin SOIC (D package), 3.90 mm × 4.90 mm body size, with standard lead pitch and creepage clearance for industrial PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 MR | Manual Reset Input | Active-low asynchronous reset trigger; pulls RESET low when asserted, independent of VDD state |
| 2 VDD | Supply Voltage Input | Primary power rail input (2–6 V); powers internal reference, comparators, and outputs |
| 3 GND | Ground Reference | Common return path for all internal circuits and output loads; requires low-impedance PCB connection |
| 4 PFI | Power-Fail Input | Analog input for external voltage monitoring; compares against 1.25 V internal reference |
| 5 PFO | Power-Fail Output | Active-low open-drain output signaling PFI threshold breach; requires external pull-up |
| 6 NC | No Connection | Unbonded pin; must remain unconnected per TI design-no routing or grounding allowed |
| 7 RESET | Active-Low Reset Output | Push-pull output asserting low during reset condition; drives standard CMOS/TTL reset inputs |
| 8 RESET | Active-High Reset Output | Complementary push-pull output asserting high during reset; eliminates need for external inverter |
Key Features
| Feature | Design Value |
|---|---|
| Dual-polarity reset outputs | Simultaneous active-low and active-high RESET signals eliminate level-shifting components and reduce BOM count |
| Fixed 200-ms reset delay | Eliminates external timing capacitor, improving production yield and reducing board space versus RC-based solutions |
| Integrated PFI/PFO comparator | Enables monitoring of secondary supplies (e.g., 12 V, 3.3 V) using only two external resistors-no additional IC required |
| Low 50-µA quiescent current | Extends battery life in portable instrumentation and wireless sensors where standby power is constrained |
| –40°C to 85°C operating range | Validated performance across industrial ambient temperatures without derating or thermal management overhead |
Applications
| Industrial Programmable Logic Controllers | Automotive Body Control Modules |
|---|---|
|
Use Scenario: Monitoring 5-V microcontroller supply and 12-V actuator rail in PLC backplane modules subject to voltage transients and cold-cranking conditions. IC Role / Device Role / Timing Role: Primary supervisor providing synchronized active-low and active-high reset to FPGA and ARM Cortex-M7, plus PFO alert for 12-V brownout. Use Value: Dual-reset outputs ensure deterministic startup across mixed-logic families; PFI hysteresis prevents chatter during slow-ramp 12-V recovery. |
Use Scenario: Ensuring safe boot sequence for infotainment SoC and CAN transceivers after vehicle ignition, under load-dump and jump-start stress. IC Role / Device Role / Timing Role: VDD supervisor for 5-V domain and PFI monitor for 12-V battery rail, triggering system-wide reset and diagnostic flag via PFO. Use Value: 4.55 V threshold tolerance accommodates nominal 5-V rail variation; 200-ms delay exceeds ISO 16750-2 cold-crank recovery time. |
| Portable Medical Diagnostic Devices | Network Edge Routers |
|
Use Scenario: Supervising lithium-ion powered handheld ultrasound units with dual-voltage rails (3.3 V logic, 5 V analog front-end) and battery fuel gauge interface. IC Role / Device Role / Timing Role: VDD supervisor for main 5-V rail and PFI input tied to battery voltage divider, generating low-battery warning via PFO. Use Value: 50 µA IDD extends runtime between charges; PFI's 1.25 V threshold enables accurate 3.0–4.2 V battery monitoring with <1% error. |
Use Scenario: Securing reliable boot of multi-core network processors in carrier-grade routers exposed to AC line sags and PoE voltage fluctuations. IC Role / Device Role / Timing Role: Primary 5-V supervisor with MR input linked to front-panel reset button and PFO connected to system health monitor ASIC. Use Value: Complementary RESET outputs interface natively with both processor reset and FPGA configuration logic; SOIC-8 footprint fits dense control-plane layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS3705-50D | Includes watchdog timer (WDI/WDO), single active-low RESET, no active-high RESET output | Required where firmware hang detection is mandatory; unsuitable if dual-reset polarity is needed | Select TPS3705-50D only when watchdog supervision adds value beyond basic power monitoring |
| MAX707CSA+ | Pin-compatible legacy part; 4.65 V threshold, 200-ms delay, single RESET, no PFI/PFO | Lacks power-fail monitoring capability; requires external circuitry for secondary rail supervision | Choose MAX707CSA+ only for drop-in replacement in existing designs where PFI functionality is unused |
Compared with TPS3705-50D and MAX707CSA+, the TPS3707-50D uniquely delivers dual-reset polarity and integrated PFI/PFO in SOIC-8-enabling compact, feature-complete supervision without added components or layout complexity.
Availability
TPS3707-50D is available at Aetrix Electronics and suitable for industrial programmable controllers, automotive body electronics, and portable medical devices requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for TPS3707-50D 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 decades of expertise in high-reliability supervisory circuits.
The TPS370x family was designed specifically for robust power sequencing and fault detection in DSP, microcontroller, and microprocessor systems-emphasizing precision thresholds, low power, and integration of complementary supervision functions.
FAQ
What is the exact VDD threshold voltage for TPS3707-50D and its tolerance?
The TPS3707-50D has a negative-going VDD threshold (VIT–) of 4.55 V, with a guaranteed tolerance of ±2.5% across the full –40°C to 85°C operating temperature range. This specification is validated per TI's SLVS184F datasheet Section 7.5, ensuring reliable 5-V rail monitoring without calibration.
Does TPS3707-50D include a watchdog timer function?
No, the TPS3707-50D does not include a watchdog timer. Unlike the TPS3705-xx series, it omits WDI and WDO pins entirely. Its functional block diagram confirms exclusive focus on VDD supervision, manual reset, and power-fail monitoring-making it ideal for systems where software-level watchdogs are handled externally.
What are the valid package options for TPS3707-50D?
The TPS3707-50D is specified and orderable exclusively in the 8-pin SOIC (D) package, with body dimensions of 3.90 mm × 4.90 mm. While the broader TPS3707-xx family includes MSOP-PowerPAD (DGN) variants, the -50D suffix denotes SOIC-only availability per TI's orderable addendum and device information table.
How does the PFI input on TPS3707-50D function in practice?
The PFI input monitors external voltages using an internal 1.25 V reference. When the applied voltage drops below 1.25 V (±0.05 V), PFO asserts low. For example, a 12-V rail can be monitored using a 910 kΩ/120 kΩ resistor divider, yielding ~1.25 V at PFI when the rail falls to ~10.7 V-providing early brownout warning before VDD collapse.
Can TPS3707-50D replace MAX707 in existing designs?
TPS3707-50D is pin-compatible with MAX707 and shares identical SOIC-8 footprint and 200-ms reset delay, but adds PFI/PFO functionality and dual-reset outputs. Replacement is feasible if the design can accommodate the extra PFO signal and does not require MAX707's specific 4.65 V threshold-verify VIT– match (4.55 V vs 4.65 V) for critical 5-V margin cases.
TPS3707-50D Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 4.55V
- 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-SOIC
TPS3707-50D FAQ
1.How can I place an order for TPS3707-50D through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS3707-50D 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 TPS3707-50D reliable?
The price and inventory of TPS3707-50D are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS3707-50D is usually 5 days.
3.What payment methods are accepted for TPS3707-50D?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS3707-50D transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS3707-50D?
TPS3707-50D orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS3707-50D 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 TPS3707-50D?
For technical support, including TPS3707-50D datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS3707-50D requirements.
6.How does Aetrix verify that TPS3707-50D is sourced from the original manufacturer or authorized distributors?
All TPS3707-50D 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 TPS3707-50D meets industry standards.
7.What is the process for return or replacement of TPS3707-50D?
All TPS3707-50D units undergo pre-shipment inspection (PSI). If there is an issue with TPS3707-50D, 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 TPS3707-50D part is unused and in its original packaging.
Return procedure for TPS3707-50D:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS3707-50D Tags
-
MIC826SYMT-TR
Microchip Technology
-
APX803S-31SA-7
Diodes Incorporated
-
APX803L20-29SA-7
Diodes Incorporated
-
TPS3828-33DBVR
Texas Instruments
-
V6340RSP3B+
EM Microelectronic
-
EM6325CXSP5B-2.9+
EM Microelectronic
-
MCP120T-300I/TT
Microchip Technology
-
MCP130T-315I/TT
Microchip Technology
-
MCP120T-475I/TT
Microchip Technology
-
MCP111T-300E/TT
Microchip Technology
-
MCP120T-315I/TT
Microchip Technology
-
MCP809T-315I/TT
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
