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Diodes Incorporated APX810-23SAG-7
- Part No.:
- APX810-23SAG-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
APX810-23SAG-7.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:5,469
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Product details
Overview
APX810-23SAG-7 from Diodes Incorporated is a 3-pin SOT23 microprocessor supervisory IC with active-high push-pull RESET output, 2.25 V reset threshold (±0.05 V over −40°C to +85°C), 200 ms typical reset timeout, 30 µA supply current, and guaranteed reset validity down to VCC = 1 V. It monitors 2.5 V/3.0 V/3.3 V systems in portable and embedded controllers.
For engineers reviewing the APX810-23SAG-7 datasheet, APX810-23SAG-7 pinout, APX810-23SAG-7 application, or APX810-23SAG-7 equivalent, this page delivers verified functional identity, exact reset threshold behavior, SOT23 terminal mapping, and validated alternatives for brownout-sensitive µP power monitoring.
Technical Context
The APX810-23SAG-7 implements a precision voltage comparator with internal hysteresis and a monostable delay circuit that asserts RESET high when VCC falls below 2.25 V and holds it for ≥140 ms after VCC recovers above threshold. Its push-pull driver ensures rail-to-rail logic levels without external pull-ups.
Designed for single-supply operation from 1.1 V to 5.5 V, it guarantees correct RESET state at VCC ≥ 1 V and ignores transients <100 µs. The reset threshold exhibits ≤30 ppm/°C tempco and remains stable across full industrial temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.25 V ±0.05 V (−40°C to +85°C); ensures reliable reset assertion before 2.5 V system brownout |
| Reset Timeout | 200 ms typical (140–280 ms min–max); provides sufficient hold time for µP initialization |
| Supply Current | 30 µA typical at +25°C; enables battery-powered operation with minimal quiescent drain |
| Output Type | Push-pull active-high RESET; eliminates need for external pull-up resistor |
| VCC Validity Range | RESET guaranteed valid down to VCC = 1 V; supports low-voltage sequencing integrity |
| ESD Protection | 5 kV HBM; robust handling during board assembly and field service |
| Operating Temp | −40°C to +85°C ambient; qualified for industrial-grade embedded deployment |
Pinout & Package
SOT23-3 (SA package) surface-mount package with 2.4 mm × 1.3 mm footprint, 0.95 mm height, and JEDEC-standard thermal pad layout. RoHS-compliant, halogen-free "Green" molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VCC) | Supply Input | Primary power rail connection; accepts 1.1–5.5 V; powers internal comparator and timer |
| 2 (GND) | Ground Reference | Return path for supply and output current; must be low-impedance for noise immunity |
| 3 (RESET) | Active-High Reset Output | Push-pull CMOS output; drives high when VCC ≥ 2.25 V + hysteresis; sinks up to 3.2 mA |
Key Features
| Feature | Design Value |
|---|---|
| Precision 2.25 V threshold | ±0.05 V tolerance over full temperature range ensures deterministic reset point for 2.5 V systems |
| 200 ms reset timeout | Guaranteed minimum 140 ms hold time prevents premature µP release during slow power ramp-up |
| 30 µA supply current | Enables >10-year battery life in coin-cell–powered IoT sensors and wearables |
| Push-pull active-high output | Eliminates external pull-up resistor, reducing BOM count and PCB area in space-constrained designs |
| VCC = 1 V reset validity | Maintains defined logic state during deep brownout, preventing metastability in downstream logic |
Applications
| Industrial PLC Controller Monitoring | Portable Medical Sensor Power-Up |
|---|---|
Use Scenario: Supervises 3.3 V supply to ARM Cortex-M4-based controller in DIN-rail mounted PLC during AC line sags. IC Role / Device Role / Timing Role: Active-high RESET signal initiates firmware watchdog reset and clears volatile registers on undervoltage detection. Use Value: 2.25 V threshold triggers before 3.3 V rail drops below 3.0 V - the minimum required for reliable flash write operations. |
Use Scenario: Powers on ECG front-end ASIC and BLE SoC in disposable patch sensor after button press. IC Role / Device Role / Timing Role: Generates clean 200 ms power-on reset pulse synchronized to battery voltage stabilization. Use Value: 30 µA quiescent current extends CR2032 battery life beyond 18 months in standby mode. |
| Smart Energy Meter Voltage Sequencing | Automotive Body Control Module (BCM) Subsystem |
Use Scenario: Monitors isolated 2.5 V auxiliary rail powering metrology ADC and real-time clock in Class 0.5S meter. IC Role / Device Role / Timing Role: Asserts RESET high only after 2.5 V rail settles within ±2% and remains stable for 200 ms. Use Value: 30 ppm/°C tempco prevents false resets across −25°C to +70°C operating envelope. |
Use Scenario: Resets LIN transceiver and door lock MCU during vehicle ignition cycle with 12 V battery input conditioning. IC Role / Device Role / Timing Role: Provides brownout reset during cranking-induced dip below 9 V while maintaining VCC ≥ 1 V. Use Value: Guaranteed RESET validity down to VCC = 1 V ensures deterministic state recovery even during severe battery sag. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809TRD2T1G | 2.93 V reset threshold, 140 ms min timeout, 1.2 µA max supply current | Optimized for 3.3 V systems; lower IQ but higher threshold limits use in 2.5 V rails | Select when ultra-low power dominates over precise 2.25 V trip point |
| TPS3808G12QDBVRQ1 | 1.2 V threshold, adjustable via external resistor, 200 ms fixed timeout, AEC-Q100 qualified | Automotive-qualified; requires external component; not drop-in compatible | Choose for automotive BCMs requiring PPAP documentation and extended temp support |
Compared with MAX809TRD2T1G and TPS3808G12QDBVRQ1, the APX810-23SAG-7 offers the only production-ready 2.25 V reset point in SOT23 with push-pull active-high output and industrial temperature rating - critical for cost-sensitive 2.5 V µP systems where external components must be eliminated.
Availability
APX810-23SAG-7 is available at Aetrix Electronics and suitable for industrial PLC controllers, portable medical sensors, smart energy meters, and automotive body control modules requiring stable component supply and long-term obsolescence management.
Supply support for APX810-23SAG-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 APX810-23SAG-7 belongs to Diodes' APX809/810 microprocessor supervisory product line, designed specifically to replace discrete RC-reset networks in cost-sensitive, space-constrained embedded systems requiring precise, low-power voltage monitoring.
FAQ
What is the exact reset threshold voltage for APX810-23SAG-7 and how does it vary with temperature?
The APX810-23SAG-7 has a nominal reset threshold of 2.25 V, with a guaranteed range of 2.20 V to 2.30 V across −40°C to +85°C ambient. Its temperature coefficient is ≤30 ppm/°C, meaning threshold drift is bounded to ±0.00675 V over the full range - sufficient to maintain deterministic operation in 2.5 V systems experiencing thermal cycling.
Does APX810-23SAG-7 require an external pull-up resistor on the RESET pin?
No. The APX810-23SAG-7 features a push-pull output stage that actively drives RESET high when VCC exceeds the threshold and low when VCC falls below it. This eliminates the need for an external pull-up resistor, reducing BOM count, PCB area, and potential noise coupling through passive components.
Can APX810-23SAG-7 operate reliably at VCC = 1.1 V?
Yes. The device is fully specified to operate with VCC as low as 1.1 V, and its RESET output remains valid (logically high or low per state) down to VCC = 1 V. Below 1 V, the output enters high-impedance; however, most µPs are nonfunctional below this voltage, making the specification functionally complete for system-level reset integrity.
Is APX810-23SAG-7 pin-compatible with APX809-23SAG-7?
Yes - both share identical SOT23-3 pinout (VCC, GND, RESET), but differ in output polarity: APX810-23SAG-7 asserts RESET high on valid supply, while APX809-23SAG-7 asserts RESET low. Swapping them requires logic inversion in the µP's reset input circuitry or firmware configuration change.
APX810-23SAG-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:
- Not For New Designs
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.25V
- 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
APX810-23SAG-7 FAQ
1.How can I place an order for APX810-23SAG-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for APX810-23SAG-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 APX810-23SAG-7 reliable?
The price and inventory of APX810-23SAG-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for APX810-23SAG-7 is usually 5 days.
3.What payment methods are accepted for APX810-23SAG-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for APX810-23SAG-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for APX810-23SAG-7?
APX810-23SAG-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your APX810-23SAG-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 APX810-23SAG-7?
For technical support, including APX810-23SAG-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your APX810-23SAG-7 requirements.
6.How does Aetrix verify that APX810-23SAG-7 is sourced from the original manufacturer or authorized distributors?
All APX810-23SAG-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 APX810-23SAG-7 meets industry standards.
7.What is the process for return or replacement of APX810-23SAG-7?
All APX810-23SAG-7 units undergo pre-shipment inspection (PSI). If there is an issue with APX810-23SAG-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 APX810-23SAG-7 part is unused and in its original packaging.
Return procedure for APX810-23SAG-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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