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Diodes Incorporated APX810S-23SA-7
- Part No.:
- APX810S-23SA-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
APX810S-23SA-7.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:3,974
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Product details
Overview
APX810S-23SA-7 from Diodes Incorporated is a micro-power voltage detector IC designed for µP supervisory functions in digital systems powered by +2.5V, +3.0V, +3.3V, or +5V rails. It provides an active-high push-pull RESET output with a precision 2.25V threshold (±0.03V), 240ms minimum reset timeout, 7µA typical supply current, and guaranteed operation down to VCC = 1.0V - used in battery-powered controllers and portable instrumentation.
For engineers reviewing the APX810S-23SA-7 datasheet, APX810S-23SA-7 pinout, APX810S-23SA-7 application, or APX810S-23SA-7 equivalent, key selection criteria include reset threshold accuracy, temperature stability (30 ppm/°C), low-voltage validity (1V), push-pull drive capability (1.2mA sink), and SOT23-3 (SA) package compatibility with space-constrained PCB layouts.
Technical Context
The APX810S-23SA-7 integrates a precision bandgap reference and comparator to monitor VCC against a fixed 2.25V threshold. Its internal timing circuit ensures a minimum 240ms active-high RESET assertion after VCC recovers above threshold, independent of supply ramp rate.
Designed for immunity to fast transients, it guarantees correct logic state at VCC ≥ 1.0V and supports operation across –40°C to +125°C ambient. The push-pull output eliminates external pull-up resistors and drives directly into µP reset inputs without level-shifting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.25V ±0.03V - ensures reliable detection of brown-out on 2.5V systems before functional failure |
| Reset Timeout | 240ms min - meets µP power-on reset timing requirements per JEDEC JESD8-12 |
| Supply Current | 7µA typ - enables multi-year operation in coin-cell–powered IoT sensors |
| VCC Validity Range | 1.0V to 5.5V - supports reset assertion during deep brown-out and full rail operation |
| Output Type | Push-pull active-high - eliminates external pull-up, reduces BOM count, and ensures fast edge rates |
| Temp Coefficient | 30 ppm/°C - maintains threshold stability over industrial temperature range (–40°C to +125°C) |
| Reset Propagation Delay | 20µs max - responds rapidly to supply dips without missing critical fault events |
Pinout & Package
The APX810S-23SA-7 is housed in a RoHS-compliant, halogen-free SOT23-3 (SA) package with 1.3mm × 2.9mm footprint and 1.1mm height, optimized for automated placement and reflow soldering on high-density PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (GND) | Ground Reference | Return path for internal comparator and output stage; must be connected to system ground plane for noise immunity |
| 2 (RESET) | Active-High Reset Output | Push-pull CMOS output driving µP /RESET pin directly; sinks 1.2mA or sources 150µA at valid logic levels |
| 3 (VCC) | Supply Input | Monitored power rail input; powers internal circuitry and defines detection threshold reference |
Key Features
| Feature | Design Value |
|---|---|
| Precision 2.25V threshold | ±0.03V tolerance ensures consistent reset behavior across production lots and temperature |
| 240ms guaranteed reset pulse | Meets JEDEC-standard power-on reset duration for ARM Cortex-M and PIC microcontrollers |
| 1V minimum operating voltage | Enables fail-safe reset assertion even during severe battery depletion or cold-start conditions |
| No external components required | Reduces BOM cost and board area vs. discrete resistor-divider + comparator solutions |
| SOT23-3 "Green" packaging | Lead-free, halogen-free, antimony-free construction compliant with RoHS 3 (2015/863/EU) |
Applications
| Battery-Powered Data Loggers | Industrial PLC I/O Modules |
|---|---|
Use Scenario: Long-term environmental monitoring using coin-cell power and flash memory storage. IC Role / Device Role / Timing Role: Voltage supervisor asserting active-high RESET to halt µC execution during brown-out and hold it until stable 3.3V rail is confirmed. Use Value: Prevents corrupted firmware writes and invalid sensor data commits during undervoltage conditions. | Use Scenario: DIN-rail mounted controller with isolated 24V DC input converted to 3.3V for logic. IC Role / Device Role / Timing Role: Monitors 3.3V logic rail and generates 240ms reset pulse on power-up and transient dips. Use Value: Ensures deterministic boot sequence and avoids metastability in FPGA configuration logic. |
| Medical Handheld Diagnostics | Smart Energy Meters |
Use Scenario: Portable glucose meter with lithium-polymer battery and LCD display. IC Role / Device Role / Timing Role: Detects 2.5V rail collapse below 2.25V and asserts RESET to disable analog front-end and RF subsystems. Use Value: Eliminates false readings and preserves calibration integrity during low-battery shutdown. | Use Scenario: ANSI C12.20-certified electricity meter with dual-supply (5V analog, 3.3V digital). IC Role / Device Role / Timing Role: Supervises 3.3V digital supply and triggers controlled shutdown sequence via µC interrupt. Use Value: Guarantees EEPROM write completion and secure state retention before power loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809SEUR+T | 2.5V threshold, 140ms reset timeout, open-drain output requiring pull-up | Lacks push-pull drive; adds external resistor and increases leakage risk in low-power designs | Choose only if 2.5V threshold matches system rail and board space allows pull-up resistor |
| TPS3808G01DBVR | Adjustable threshold (0.4–5.0V), 200ms timeout, higher 8µA quiescent current | Requires external resistor divider; less accurate than factory-trimmed 2.25V option | Select when flexible threshold tuning is needed and 0.25% accuracy is not mandatory |
Compared with MAX809SEUR+T and TPS3808G01DBVR, the APX810S-23SA-7 delivers tighter threshold accuracy (±0.03V), integrated push-pull drive, and lower quiescent current - making it optimal for fixed 2.5V-system supervision where BOM simplification and ultra-low power are critical.
Availability
APX810S-23SA-7 is available at Aetrix Electronics and suitable for battery-powered instrumentation, industrial PLC I/O modules, medical handheld diagnostics, and smart energy meters requiring stable component supply across extended product lifecycles.
Supply support for APX810S-23SA-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 devices for industrial, computing, and consumer markets.
The APX810S-23SA-7 belongs to Diodes' APX8xxS micro-power voltage detector family, engineered specifically for cost-sensitive, space-constrained µP supervisory applications demanding precision thresholds and minimal external components.
FAQ
What is the exact reset threshold voltage for APX810S-23SA-7?
The APX810S-23SA-7 has a factory-trimmed reset threshold of 2.25V, with a guaranteed range of 2.22V to 2.29V at +25°C and ±0.03V initial tolerance. This value remains stable across temperature with a 30 ppm/°C coefficient, ensuring consistent performance from –40°C to +125°C.
Does APX810S-23SA-7 require an external pull-up resistor?
No. The APX810S-23SA-7 features a push-pull active-high RESET output capable of sourcing 150µA and sinking 1.2mA, eliminating the need for an external pull-up resistor. This reduces component count, saves PCB area, and improves noise immunity compared to open-drain alternatives.
Can APX810S-23SA-7 operate reliably below 2.5V supply?
Yes. The device guarantees correct RESET logic state down to VCC = 1.0V, and its internal circuitry remains functional across 1.0V–5.5V. This enables robust brown-out detection in deeply discharged battery scenarios where other supervisors may fail to assert reset.
Is APX810S-23SA-7 pin-compatible with APX809S-23SA-7?
Yes - both share identical SOT23-3 (SA) pinout (VCC, RESET, GND) and footprint. However, APX809S-23SA-7 provides active-low RESET, while APX810S-23SA-7 provides active-high RESET. Board-level substitution requires verification of µP reset polarity and firmware handling of inverted logic.
APX810S-23SA-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:
- 2.25V
- 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-23SA-7 FAQ
1.How can I place an order for APX810S-23SA-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for APX810S-23SA-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-23SA-7 reliable?
The price and inventory of APX810S-23SA-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-23SA-7 is usually 5 days.
3.What payment methods are accepted for APX810S-23SA-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for APX810S-23SA-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for APX810S-23SA-7?
APX810S-23SA-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your APX810S-23SA-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-23SA-7?
For technical support, including APX810S-23SA-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your APX810S-23SA-7 requirements.
6.How does Aetrix verify that APX810S-23SA-7 is sourced from the original manufacturer or authorized distributors?
All APX810S-23SA-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-23SA-7 meets industry standards.
7.What is the process for return or replacement of APX810S-23SA-7?
All APX810S-23SA-7 units undergo pre-shipment inspection (PSI). If there is an issue with APX810S-23SA-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-23SA-7 part is unused and in its original packaging.
Return procedure for APX810S-23SA-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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