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Diodes Incorporated APX810-26SAG-7
- Part No.:
- APX810-26SAG-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
APX810-26SAG-7.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
APX810-26SAG-7 from Diodes Incorporated is a 3-pin SOT23 microprocessor supervisory IC with active-high push-pull RESET output, 2.63 V precision reset threshold (±0.06 V over −40°C to +85°C), 200 ms typical reset timeout, and 30 µA supply current. It monitors 3.3 V systems in embedded controllers and portable equipment, asserting RESET during brownout or power-up until VCC stabilizes above threshold.
For engineers reviewing the APX810-26SAG-7 datasheet, APX810-26SAG-7 pinout, APX810-26SAG-7 application, or APX810-26SAG-7 equivalent, key selection criteria include reset threshold accuracy, guaranteed logic state down to VCC = 1 V, push-pull drive capability without external pull-up, and SOT23 footprint compatibility for space-constrained designs.
Technical Context
The APX810-26SAG-7 implements a voltage-monitoring comparator with internal reference and fixed-delay timer to generate a clean, glitch-immune active-high reset pulse. Its reset assertion is triggered solely by VCC falling below 2.63 V, and the output remains high for ≥240 ms after VCC rises above threshold - independent of input rise time or noise transients.
Designed for single-supply operation from 1.1 V to 5.5 V, it guarantees valid VOH ≥0.8VCC at ISOURCE = 500 µA and VOL ≤0.3 V at ISINK = 1.2 mA, enabling direct interface with 3.3 V and 5 V microcontrollers without level-shifting. The comparator ignores fast VCC transients and maintains correct logic state down to VCC = 1 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.63 V ±0.06 V (−40°C to +85°C); ensures reliable reset initiation for 3.3 V rails with 20% margin below nominal. |
| Reset Timeout | 200 ms typical (140–280 ms min–max); holds processor in reset long enough for stable clock and supply settling. |
| Supply Current | 30 µA typical at +25°C; enables multi-year battery life in portable instrumentation and IoT edge nodes. |
| Output Type | Push-pull active-high; eliminates need for external pull-up resistor and supports direct MCU reset pin connection. |
| VCC Operating Range | 1.1 V to 5.5 V; allows use across 1.8 V, 2.5 V, 3.3 V, and 5 V digital systems without redesign. |
| Reset Validity | Guaranteed logic state down to VCC = 1 V; prevents undefined reset behavior during deep brownout conditions. |
| ESD Protection | 5 kV HBM; provides robust handling in automated assembly and field service environments. |
Pinout & Package
SOT23-3 (SA package) surface-mount package with 2.4 mm × 1.3 mm footprint, 0.95 mm height, and RoHS-compliant green molding compound. Thermal resistance θJA = 201°C/W on standard FR-4 PCB with 2 oz copper.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VCC) | Supply Input | Power rail monitoring input; internally powers comparator, timer, and output driver. |
| 2 (GND) | Ground Reference | Return path for internal circuitry and output sink current; must be low-impedance connection. |
| 3 (RESET) | Active-High Reset Output | Push-pull CMOS output; drives high to VCC when asserted, low when inactive - no external components required. |
Key Features
| Feature | Design Value |
|---|---|
| Precision 2.63 V threshold | ±0.06 V tolerance over full temperature range ensures deterministic reset timing in industrial ambient conditions. |
| 200 ms reset timeout | Internally generated delay eliminates external RC timing components and improves board-level reliability. |
| 30 µA supply current | Enables continuous supervision in always-on battery-powered devices without measurable impact on runtime. |
| Push-pull active-high output | Directly interfaces with reset pins of ARM Cortex-M, PIC, AVR, and RISC-V microcontrollers without pull-up resistors. |
| VCC = 1 V reset validity | Maintains defined logic state during deep undervoltage events, preventing spurious wake-up or execution errors. |
Applications
| Industrial PLC Controllers | Portable Medical Monitors |
|---|---|
|
Use Scenario: Power sequencing and brownout recovery in DIN-rail mounted programmable logic controllers operating in factory-floor environments with fluctuating 24 VDC supplies converted to 3.3 V. IC Role / Device Role / Timing Role: Supervisory reset generator ensuring deterministic µC restart after line sags or transient dips below 3.0 V. Use Value: Prevents corrupted I/O state or firmware lockup by guaranteeing ≥240 ms reset hold time after supply recovery. |
Use Scenario: Battery-backed vital-sign monitors requiring continuous power supervision during Li-ion discharge from 4.2 V to 3.0 V. IC Role / Device Role / Timing Role: Active-high reset source tied directly to ARM-based SoC reset pin, eliminating external pull-up and saving PCB area. Use Value: 30 µA quiescent current extends single-charge runtime by >12 months in standby mode. |
| Smart Energy Meters | Automotive Body Control Modules |
|
Use Scenario: Metering ICs powered from isolated DC-DC converters in ANSI C12.20-certified electricity meters exposed to wide temperature swings. IC Role / Device Role / Timing Role: Precision 2.63 V monitor for 3.3 V auxiliary rail, rejecting EFT bursts per IEC 61000-4-4 Level 4. Use Value: Reset comparator immunity to fast transients avoids false resets during conducted surge events. |
Use Scenario: Low-power door module ECUs powered from vehicle battery (9–16 V) via 3.3 V LDO, subject to load-dump and cold-crank conditions. IC Role / Device Role / Timing Role: Brownout detector asserting RESET during cranking-induced dips below 2.7 V, holding until stable. Use Value: Guaranteed reset validity down to VCC = 1 V ensures safe shutdown even during extreme undervoltage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809TRD2T1G | 2.63 V threshold, open-drain active-low output, 14 µA ICC, SOT23-3 | Requires external pull-up; incompatible with active-high reset inputs without inversion logic | Select only if legacy design uses active-low reset and board layout cannot accommodate pull-up resistor. |
| TPS3808G125DBVR | 2.625 V threshold, push-pull active-high, 2.5 µA ICC, adjustable delay, SOT23-6 | 6-pin package increases footprint; ultra-low ICC benefits ultra-long-life battery apps but adds cost | Prefer for new designs needing <5 µA quiescent current or programmable timeout, accepting larger package. |
Compared with MAX809TRD2T1G and TPS3808G125DBVR, the APX810-26SAG-7 delivers identical threshold accuracy and push-pull drive in the smallest possible SOT23-3 footprint while maintaining industry-standard 30 µA ICC - balancing size, simplicity, and performance for cost-sensitive industrial and portable applications.
Availability
APX810-26SAG-7 is available at Aetrix Electronics and suitable for industrial PLC controllers, portable medical monitors, and smart energy meters requiring stable component supply, long-term lifecycle support, and RoHS-compliant green packaging.
Supply support for APX810-26SAG-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 APX809/810 series was designed specifically for cost-sensitive, space-constrained microprocessor supervision in battery-powered and embedded control applications - emphasizing precision threshold, minimal external components, and robust transient immunity.
FAQ
Is APX810-26SAG-7 pin-compatible with APX809-26SAG-7?
Yes - both share identical SOT23-3 pinout (VCC, GND, RESET), but differ in output polarity: APX810 asserts RESET high upon valid VCC, while APX809 asserts low. Swapping requires verifying target MCU reset pin logic level and adjusting PCB net connectivity accordingly.
Does APX810-26SAG-7 require an external capacitor for reset timing?
No - the 200 ms reset timeout is generated by an internal precision timer. No external RC network is needed, reducing BOM count, PCB area, and potential drift due to capacitor aging or temperature coefficient.
What is the minimum VCC required for APX810-26SAG-7 to assert a valid RESET high?
The device guarantees correct logic state (VOH ≥0.8VCC) for VCC ≥1.1 V. Below 1.1 V, output behavior is not specified; however, RESET remains high until VCC drops below 2.63 V, then transitions low only when VCC falls further - ensuring no false release during slow decay.
Can APX810-26SAG-7 monitor a 2.5 V supply rail?
No - its 2.63 V threshold is optimized for 3.3 V systems. For 2.5 V rails, use APX810-23SAG-7 (2.25 V threshold) or APX810-29SAG-7 (2.93 V). Using APX810-26SAG-7 on 2.5 V would cause immediate, permanent reset assertion since VCC never exceeds threshold.
APX810-26SAG-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:
- SOT-23-3
APX810-26SAG-7 FAQ
1.How can I place an order for APX810-26SAG-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for APX810-26SAG-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 APX810-26SAG-7 reliable?
The price and inventory of APX810-26SAG-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for APX810-26SAG-7 is usually 5 days.
3.What payment methods are accepted for APX810-26SAG-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for APX810-26SAG-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for APX810-26SAG-7?
APX810-26SAG-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your APX810-26SAG-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 APX810-26SAG-7?
For technical support, including APX810-26SAG-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your APX810-26SAG-7 requirements.
6.How does Aetrix verify that APX810-26SAG-7 is sourced from the original manufacturer or authorized distributors?
All APX810-26SAG-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 APX810-26SAG-7 meets industry standards.
7.What is the process for return or replacement of APX810-26SAG-7?
All APX810-26SAG-7 units undergo pre-shipment inspection (PSI). If there is an issue with APX810-26SAG-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 APX810-26SAG-7 part is unused and in its original packaging.
Return procedure for APX810-26SAG-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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