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Diodes Incorporated APX810S-26SA-7
- Part No.:
- APX810S-26SA-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
APX810S-26SA-7.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:3,074
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Product details
Overview
APX810S-26SA-7 from Diodes Incorporated is a micro-power voltage detector IC designed for µP supervisory functions in digital systems powered by +2.5V to +5V rails. It provides active-high reset assertion when VCC falls below 2.63V (typ), maintains reset for ≥240ms after recovery, and operates with 7µA supply current (typ) down to VCC = 1V. Used in portable equipment and critical µC power monitoring.
For engineers reviewing the APX810S-26SA-7 datasheet, APX810S-26SA-7 pinout, APX810S-26SA-7 application, or APX810S-26SA-7 equivalent, key selection criteria include reset threshold accuracy (±0.04V), guaranteed operation at 1V supply, push-pull output drive capability (500µA source), and SOT23-3 package compatibility with space-constrained embedded designs.
Technical Context
The APX810S-26SA-7 integrates a precision bandgap reference and comparator to monitor VCC against a fixed 2.63V threshold (2.59–2.67V over temperature). Its internal timing circuit ensures minimum 240ms reset timeout after VCC exceeds VTH, independent of external components.
It features a push-pull output stage capable of sourcing 500µA at 0.8×VCC while sinking 1.2mA at ≤0.3V, with guaranteed logic-state validity across VCC = 1.0–5.5V and ambient temperatures from –40°C to +125°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.63V (typ), 2.59–2.67V (min/max); precisely monitors +2.6V supply rails without calibration. |
| Supply Current | 7µA (typ), ≤16µA (max); enables multi-year battery life in portable devices. |
| Reset Timeout | 240ms (typ), 140–280ms (min/max); ensures reliable µP initialization after brownout recovery. |
| Operating Voltage | 1.0–5.5V; guarantees valid reset state even during deep undervoltage conditions. |
| Output Type | Push-pull active-high RESET; eliminates need for external pull-up resistor. |
| Temp Coefficient | 30ppm/°C; maintains threshold stability across industrial temperature range. |
| ESD Rating | 6kV HBM; robust handling in manufacturing and field environments. |
Pinout & Package
APX810S-26SA-7 is housed in a RoHS-compliant, halogen-free SOT23-3 (SA) package with 2.4mm × 1.3mm footprint and 0.95mm height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for internal comparator and output stage; must be low-impedance connection. |
| 2 | RESET | Active-high push-pull reset output; drives µP /RESET input directly without external components. |
| 3 | VCC | Power supply input; powers internal circuitry and defines monitored rail; valid from 1.0V. |
Key Features
| Feature | Design Value |
|---|---|
| Precision threshold tolerance | ±0.04V at 25°C ensures accurate detection of +2.6V supply deviations. |
| No external components required | Integrated reference, comparator, and timer eliminate BOM cost and PCB area for reset circuits. |
| Guaranteed operation at 1V | Enables fail-safe reset assertion during severe brownout or battery depletion scenarios. |
| Push-pull active-high output | Drives standard CMOS /RESET inputs directly; avoids weak pull-up limitations of open-drain alternatives. |
| SOT23-3 "Green" packaging | Lead-free, halogen-free, antimony-free construction meets global environmental compliance mandates. |
Applications
| Portable Medical Sensors | Industrial PLC I/O Modules |
|---|---|
|
Use Scenario: Battery-powered glucose meters and pulse oximeters requiring reliable startup and brownout recovery. IC Role / Device Role / Timing Role: Monitors 3.3V LDO output to assert active-high reset to MCU during battery sag or cold-start conditions. Use Value: 7µA quiescent current extends single-CR2032 battery life beyond 3 years; 240ms timeout prevents spurious resets from transient noise. |
Use Scenario: DIN-rail mounted programmable logic controllers operating in harsh factory environments. IC Role / Device Role / Timing Role: Supervises 2.5V FPGA configuration rail to guarantee clean reset before logic initialization. Use Value: 30ppm/°C threshold drift ensures stable trip point across –40°C to +85°C operating range; 6kV HBM ESD rating withstands industrial EMI. |
| Smart Energy Meters | Automotive Body Control Modules |
|
Use Scenario: ANSI C12.20-certified electricity meters with dual-supply architectures (3.3V MCU + 5V analog front-end). IC Role / Device Role / Timing Role: Independent supervision of 2.6V auxiliary rail powering real-time clock and secure memory. Use Value: Valid operation down to 1.0V allows reset assertion even during capacitor hold-up decay; push-pull output interfaces directly with tamper-detection logic. |
Use Scenario: 12V automotive subsystems using buck-converted 2.6V supply for CAN transceiver biasing. IC Role / Device Role / Timing Role: Resets CAN controller on supply dip caused by load dump or cranking events. Use Value: 240ms minimum timeout exceeds ISO 16750-2 cranking profile requirements; SOT23-3 footprint supports high-density layout near power ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS3808G125DBVR | 2.55V threshold (±0.5%), 350ms timeout, 1.1µA IQ, SOT23-6 package | Requires external capacitor for timeout adjustment; lower IQ but larger footprint | Select when ultra-low power (<2µA) dominates over board space and fixed-timing simplicity |
| MAX6326XR26+T | 2.63V threshold (±0.75%), 200ms timeout, 1.5µA IQ, SOT23-3 package | Open-drain output requires pull-up; no guaranteed operation below 1.8V | Select only if system already uses pull-up resistors and operates strictly above 1.8V |
Compared with TPS3808G125DBVR and MAX6326XR26+T, the APX810S-26SA-7 delivers fixed 240ms timing without external components, guaranteed 1V operation, and push-pull drive - making it optimal for cost-sensitive, space-constrained, and deep-undervoltage applications where design simplicity and robustness are prioritized over sub-µA quiescent current.
Availability
APX810S-26SA-7 is available at Aetrix Electronics and suitable for portable medical sensors, industrial PLC I/O modules, smart energy meters, and automotive body control modules requiring stable component supply and long-term lifecycle support.
Supply support for APX810S-26SA-7 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability, cost-optimized solutions for power management, signal integrity, and protection.
The APX809S/810S series belongs to Diodes' µP supervisory product line, engineered specifically for low-cost, low-power reset generation in battery-operated and industrial embedded systems without external timing components.
FAQ
What is the exact reset threshold voltage for APX810S-26SA-7?
The APX810S-26SA-7 has a nominal reset threshold of 2.63V at +25°C, with a guaranteed range of 2.59V to 2.67V across –40°C to +125°C. This value is laser-trimmed during production and specified in the DS39140 datasheet Table 1 under VTH for -26 suffix parts.
Can APX810S-26SA-7 operate with a 1.8V supply?
Yes - the device is fully functional and guarantees correct RESET logic state down to VCC = 1.0V, per Recommended Operating Conditions (VCC min = 1.0V). At 1.8V, it asserts RESET when supply drops below 2.59V and holds it for ≥240ms after recovery, though actual trip occurs only if VCC exceeds threshold.
Does APX810S-26SA-7 require an external capacitor for reset timing?
No. The 240ms (typ) reset timeout is internally generated and factory-trimmed; no external capacitor or resistor is needed. This distinguishes it from adjustable supervisors like the TPS3808 series and simplifies PCB layout and BOM.
Is the SOT23-3 (SA) package lead-free and RoHS compliant?
Yes - APX810S-26SA-7 uses Diodes Incorporated's "Green" molding compound: fully lead-free, halogen-free (<900ppm Br/Cl, <1000ppm Sb), and compliant with EU RoHS 2015/863/EU (RoHS 3) and JEDEC JS-001-2017 standards.
APX810S-26SA-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.63V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active High
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
APX810S-26SA-7 FAQ
1.How can I place an order for APX810S-26SA-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for APX810S-26SA-7 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 APX810S-26SA-7 reliable?
The price and inventory of APX810S-26SA-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for APX810S-26SA-7 is usually 5 days.
3.What payment methods are accepted for APX810S-26SA-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for APX810S-26SA-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for APX810S-26SA-7?
APX810S-26SA-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your APX810S-26SA-7 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 APX810S-26SA-7?
For technical support, including APX810S-26SA-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your APX810S-26SA-7 requirements.
6.How does Aetrix verify that APX810S-26SA-7 is sourced from the original manufacturer or authorized distributors?
All APX810S-26SA-7 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 APX810S-26SA-7 meets industry standards.
7.What is the process for return or replacement of APX810S-26SA-7?
All APX810S-26SA-7 units undergo pre-shipment inspection (PSI). If there is an issue with APX810S-26SA-7, 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 APX810S-26SA-7 part is unused and in its original packaging.
Return procedure for APX810S-26SA-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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