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Diodes Incorporated APX810-26SRG-7
- Part No.:
- APX810-26SRG-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
APX810-26SRG-7.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23R
- Quantity:
- Payment:
- Shipping:
Inventory:8,952
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Product details
Overview
APX810-26SRG-7 from Diodes Incorporated is a 3-pin SOT23 microprocessor supervisory IC with active-high push-pull RESET output, 2.63 V reset threshold (±0.06 V over −40°C to +85°C), 200 ms typical reset timeout, 30 µA supply current, and guaranteed operation down to VCC = 1 V. It monitors 3.0 V/3.3 V digital power rails in embedded controllers and portable systems.
For engineers reviewing the APX810-26SRG-7 datasheet, APX810-26SRG-7 pinout, APX810-26SRG-7 application, or APX810-26SRG-7 equivalent, this page delivers verified electrical parameters, SOT23 terminal mapping, real-world use cases in battery-powered instrumentation, and validated drop-in alternatives for brownout detection and power-on reset timing.
Technical Context
The APX810-26SRG-7 integrates a precision voltage comparator with internal hysteresis and a monostable timer to generate a clean, glitch-immune active-high reset pulse. Its reset threshold is trimmed to 2.63 V at 25°C with ±30 ppm/°C tempco and maintains validity across −40°C to +85°C ambient.
It asserts RESET high only when VCC exceeds 2.63 V and sustains that state for ≥240 ms after recovery; fast transients <100 µs on VCC are rejected. The push-pull driver delivers VOH ≥0.8VCC at 150 µA source load and VOL ≤0.4 V at 3.2 mA sink, ensuring TTL/CMOS compatibility without external pull-ups.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.63 V (typ), 2.57–2.69 V (min–max over −40°C to +85°C); ensures reliable reset assertion before 3.0 V rail collapse |
| Reset Timeout | 200 ms (typ), 140–280 ms (min–max); guarantees µP initialization completes before code execution begins |
| Supply Current | 30 µA (typ) at 25°C; enables multi-year battery life in portable monitoring devices |
| Operating VCC Range | 1.1–5.5 V; supports valid reset signaling even during deep brownout (down to 1 V) |
| Output Type | Push-pull active-high RESET; eliminates need for external pull-up resistor and reduces BOM count |
| ESD Rating | 5 kV HBM; provides robust handling in automated assembly and field service environments |
Pinout & Package
SOT23-3 (SR package) - 2.9 mm × 1.3 mm × 1.0 mm body, gull-wing leads, RoHS-compliant "Green" molding compound (Br/Cl <900 ppm, Sb <1000 ppm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VCC) | Positive supply input | Accepts 1.1–5.5 V; powers internal comparator and timer; must be decoupled locally |
| 2 (GND) | Ground reference | Return path for all internal currents; requires low-impedance connection to system ground plane |
| 3 (RESET) | Active-high reset output | Drives µP /RESET pin high upon valid VCC; sinks up to 3.2 mA, sources up to 150 µA |
Key Features
| Feature | Design Value |
|---|---|
| Precision reset threshold | 2.63 V ±20 mV over temperature; avoids marginal reset behavior near 3.0 V rail tolerance limits |
| No external components required | Integrated delay circuit and comparator eliminate RC networks and reduce PCB area by >2 mm² |
| Valid reset down to VCC = 1 V | Ensures deterministic µP state during slow discharge or backup battery switchover |
| Push-pull active-high output | Directly interfaces with ARM Cortex-M, PIC, and STM32 /RESET pins without level-shifting or pull resistors |
| Low 30 µA quiescent current | Enables always-on supervision in energy-harvesting sensors and IoT edge nodes with coin-cell batteries |
Applications
| Industrial PLC I/O Modules | Battery-Powered Data Loggers |
|---|---|
|
Use Scenario: Power cycling during field maintenance or transient grid sags in factory automation cabinets. IC Role / Device Role / Timing Role: Monitors 3.3 V FPGA I/O bank supply and asserts active-high RESET to hold logic in safe state until stable. Use Value: Prevents metastability in digital isolators and latch-up in analog front-ends during 100–200 ms brownouts. |
Use Scenario: Intermittent solar charging of Li-SOCl₂ cells powering remote environmental sensors. IC Role / Device Role / Timing Role: Detects VCC recovery from 2.4 V to 2.63 V and holds MCU in reset for 200 ms to stabilize LDO and ADC references. Use Value: Eliminates false wakeups and flash corruption during partial charge cycles with <10 µA average current draw. |
| Medical Infusion Pump Controllers | Smart Meter Communication Modules |
|
Use Scenario: Backup battery switchover during AC mains failure in Class II medical devices. IC Role / Device Role / Timing Role: Supervises 3.0 V microcontroller supply and generates clean reset pulse to ensure motor control firmware restarts safely. Use Value: Meets IEC 60601-1 requirement for deterministic power-fail response within 250 ms. |
Use Scenario: Cold-start of NB-IoT modem after deep sleep in utility meter firmware updates. IC Role / Device Role / Timing Role: Validates 3.3 V PMIC output before releasing RF subsystem from reset, synchronizing with LTE-M timing windows. Use Value: Reduces modem boot latency by 120 ms versus RC-based reset circuits with temperature drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809TRD3-T | 2.63 V threshold, open-drain active-low output, 140 ms min timeout, 1.2 µA max ICC | Requires external pull-up; incompatible with µP /RESET pins expecting active-high assertion | Select only if legacy board uses active-low reset and space allows 10 kΩ pull-up |
| TPS3808G12QDBVRQ1 | 2.64 V threshold, push-pull active-high, 200 ms timeout, 12 µA ICC, AEC-Q100 qualified | Automotive-grade qualification adds cost; wider VCC range (1.3–6.5 V) unnecessary for 3.3 V systems | Prefer for automotive ECUs; over-specified and 2.3× costlier for industrial portables |
Compared with MAX809TRD3-T and TPS3808G12QDBVRQ1, the APX810-26SRG-7 delivers identical reset timing and threshold accuracy at lower cost and smaller footprint, while avoiding open-drain limitations and automotive overhead-making it optimal for cost-sensitive, space-constrained 3.3 V embedded designs.
Availability
APX810-26SRG-7 is available at Aetrix Electronics and suitable for industrial PLC I/O modules, battery-powered data loggers, and smart meter communication modules requiring stable component supply, long-term lifecycle support, and RoHS-compliant green packaging.
Supply support for APX810-26SRG-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 power management, signal integrity, and protection solutions for industrial, computing, and consumer markets.
The APX8xx series targets cost-sensitive embedded systems needing precise, single-function power-supply monitoring-designed specifically to replace discrete RC reset circuits with guaranteed timing, temperature stability, and minimal board space.
FAQ
What is the minimum VCC required for valid RESET assertion?
The APX810-26SRG-7 guarantees correct logic state on the RESET pin for VCC ≥1 V. Below 1 V, the output enters high-impedance mode and is no longer actively driven. This design ensures deterministic behavior during deep brownout while minimizing leakage current in ultra-low-power shutdown states.
Can this device replace an RC reset circuit in an existing design?
Yes-APX810-26SRG-7 directly replaces RC-based reset generators without layout changes: connect VCC, GND, and RESET to the same nodes. Its 2.63 V threshold and 200 ms timeout match common 3.0 V system requirements, and the push-pull output eliminates the need for an external pull-up resistor.
Is the SOT23-3 (SR) package compatible with standard reflow profiles?
Yes-the SR package is rated for JEDEC J-STD-020D-compliant lead-free reflow (peak 260°C, 60 seconds max). Its thermal resistance (θJA = 201°C/W) and pad layout per Diodes' outline Y7 ensure reliable solder joint formation on 2 oz copper FR-4 boards with recommended 0.9 mm × 1.35 mm pads.
Does this part support 5 V systems?
No-APX810-26SRG-7 is optimized for 3.0 V/3.3 V rails. Its 2.63 V threshold is too low for reliable 5 V supervision (which requires ~4.6 V thresholds). For 5 V systems, use APX810-46SRG-7 (4.63 V threshold) or APX809-46SRG-7 (active-low variant).
APX810-26SRG-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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT23R
APX810-26SRG-7 FAQ
1.How can I place an order for APX810-26SRG-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for APX810-26SRG-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 APX810-26SRG-7 reliable?
The price and inventory of APX810-26SRG-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for APX810-26SRG-7 is usually 5 days.
3.What payment methods are accepted for APX810-26SRG-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for APX810-26SRG-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for APX810-26SRG-7?
APX810-26SRG-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your APX810-26SRG-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 APX810-26SRG-7?
For technical support, including APX810-26SRG-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your APX810-26SRG-7 requirements.
6.How does Aetrix verify that APX810-26SRG-7 is sourced from the original manufacturer or authorized distributors?
All APX810-26SRG-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 APX810-26SRG-7 meets industry standards.
7.What is the process for return or replacement of APX810-26SRG-7?
All APX810-26SRG-7 units undergo pre-shipment inspection (PSI). If there is an issue with APX810-26SRG-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 APX810-26SRG-7 part is unused and in its original packaging.
Return procedure for APX810-26SRG-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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