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Diodes Incorporated APX810S05-23SA-7
- Part No.:
- APX810S05-23SA-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
APX810S05-23SA-7.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:1,400
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Product details
Overview
APX810S05-23SA-7 from Diodes Incorporated is a micro-power voltage detector IC designed for supervisory reset control in microprocessor and digital systems powered by +2.5V supplies. It features an active-high push-pull RESET output, 2.25V precision threshold (±30 ppm/°C tempco), 50ms typical reset timeout, 7µA supply current, and guaranteed operation down to VCC = 1.0V - enabling reliable power monitoring in battery-powered controllers and portable instrumentation.
For engineers reviewing the APX810S05-23SA-7 datasheet, APX810S05-23SA-7 pinout, APX810S05-23SA-7 application, or APX810S05-23SA-7 equivalent, key selection criteria include reset threshold accuracy at temperature, active-high push-pull drive capability, low ICC across -40°C to +125°C, and SOT23-3 footprint compatibility with space-constrained embedded designs.
Technical Context
The APX810S05-23SA-7 integrates a precision bandgap reference, comparator, and push-pull output stage in a single die. Its reset assertion logic triggers when VCC falls below 2.25V (typ.) and holds RESET high for ≥50ms after VCC rises above threshold - meeting critical µP boot sequencing requirements without external timing components.
Designed for immunity to fast VCC transients, the device guarantees correct logic state of RESET output down to 1.0V VCC and supports full industrial temperature range (-40°C to +125°C) with ±0.3% threshold tolerance over temperature and 30 ppm/°C drift specification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.25V (typ.), ±0.3% over temp - ensures accurate +2.5V supply monitoring without calibration |
| Reset Timeout | 50ms (typ.) - provides sufficient hold time for µP initialization before release |
| Supply Current | 7µA (typ.) - enables multi-year operation on coin-cell batteries in portable devices |
| Output Type | Active-high push-pull - drives RESET line directly without pull-up resistor |
| VCC Operating Range | 1.0V to 5.5V - guarantees valid reset state even during brown-out or deep discharge |
| Temperature Range | -40°C to +125°C - supports industrial and automotive under-hood applications |
| Threshold Tempco | 30 ppm/°C - maintains <±15mV drift across full operating range |
Pinout & Package
APX810S05-23SA-7 is housed in a RoHS-compliant, halogen-free SOT23-3 package (JEDEC TO-236AB), with 1.3mm × 2.9mm footprint and 1.1mm max height - optimized for high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (GND) | Ground Reference | Return path for internal circuitry and output stage; must be connected to system ground plane |
| 2 (RESET) | Active-High Push-Pull Output | Drives µP RESET pin high during fault; sinks/source up to 1.2mA without external components |
| 3 (VCC) | Supply Input | Monitored power rail input; powers internal circuitry and enables reset detection down to 1.0V |
Key Features
| Feature | Design Value |
|---|---|
| Precision 2.25V threshold | ±0.3% tolerance over -40°C to +125°C - eliminates need for external trimming in production |
| Push-pull active-high output | Direct interface to µP RESET pin without pull-up resistor - reduces BOM count and layout area |
| 200ms typ. power-on reset pulse | Ensures stable VCC before µP release - prevents spurious startup in noisy power environments |
| 7µA supply current (typ.) | Enables >10-year battery life in coin-cell–powered IoT sensors and handheld instruments |
| Guaranteed reset validity to 1.0V VCC | Supports graceful shutdown during deep brown-out - avoids undefined µP behavior |
Applications
| Industrial Controllers | Portable Medical Instruments |
|---|---|
Use Scenario: PLC I/O modules and motor drives requiring deterministic reset during AC line sags or backup battery switchover. IC Role / Device Role / Timing Role: Voltage supervisor asserting active-high RESET to ARM Cortex-M4 microcontrollers during undervoltage events. Use Value: 50ms timeout ensures firmware completes watchdog initialization before peripheral enable, preventing bus lockup. |
Use Scenario: Handheld glucose meters and pulse oximeters powered by CR2032 coin cells with variable discharge profiles. IC Role / Device Role / Timing Role: Monitors regulated 2.5V rail derived from boost converter; asserts RESET if battery drops below 2.25V threshold. Use Value: 7µA quiescent current extends single-cell runtime beyond 3 years while maintaining ±0.3% threshold accuracy. |
| Smart Energy Meters | Automotive Body Control Modules |
Use Scenario: DIN-rail mounted electricity meters exposed to wide ambient temperatures (-25°C to +70°C) and conducted EMI. IC Role / Device Role / Timing Role: Supervises 2.5V MCU supply in metering SoC; immune to 20µs VCC transients per EN 61000-4-4. Use Value: 30 ppm/°C tempco limits threshold drift to ±12mV across operating range - ensuring compliance with IEC 62053 accuracy class. |
Use Scenario: Door module ECUs powered from vehicle battery (9V–16V) with LDO-regulated 2.5V domain for CAN transceivers and LIN slaves. IC Role / Device Role / Timing Role: Detects LDO dropout during cold-crank (6.5V battery dip) and holds RESET until stable 2.5V restored. Use Value: Valid operation down to 1.0V VCC allows detection of pre-failure LDO collapse before MCU resets - enabling diagnostic logging. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| APX810S05-23SR-7 | Same electrical specs, but SOT23-3 (SR) package with alternate pinout (GND on Pin 2, RESET on Pin 1) | Requires PCB redesign due to swapped GND/RESET pins - not drop-in compatible | Select only when legacy board uses SR footprint or requires different thermal pad layout |
| TPS3808G01QDBVRQ1 | 2.25V threshold, 200ms fixed timeout, 1.8µA ICC, AEC-Q100 Grade 2 qualified | Automotive-qualified with extended temp range (-40°C to +125°C) and enhanced ESD (8kV HBM) | Prefer for automotive body electronics where qualification and lower ICC outweigh cost premium |
Compared with APX810S05-23SA-7, the SR variant demands layout revision for pin compatibility, while the TPS3808G01QDBVRQ1 adds AEC-Q100 qualification and ultra-low ICC but increases BOM cost and requires automotive-grade sourcing controls.
Availability
APX810S05-23SA-7 is available at Aetrix Electronics and suitable for industrial controllers, portable medical instruments, smart energy meters, and automotive body control modules requiring stable component supply with consistent SOT23-3 packaging and traceable green material compliance.
Supply support for APX810S05-23SA-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 solutions for industrial, computing, and consumer markets.
The APX809S/810S series belongs to Diodes' µP supervisory product line, engineered specifically for cost-sensitive, space-constrained applications requiring precision voltage monitoring without external components - targeting portable, battery-powered, and industrial embedded systems.
FAQ
What is the exact reset threshold voltage and its tolerance for APX810S05-23SA-7?
The APX810S05-23SA-7 has a nominal reset threshold of 2.25V, with a guaranteed tolerance of ±0.3% over the full operating temperature range (-40°C to +125°C). Electrical characteristics data sheet DS39140 Rev. 2-2 specifies min/typ/max values of 2.22V/2.25V/2.29V at +25°C, and confirms 30 ppm/°C temperature coefficient ensures drift remains within ±15mV across the entire range.
Does APX810S05-23SA-7 require an external pull-up resistor on the RESET pin?
No. The APX810S05-23SA-7 features a push-pull output stage that actively drives RESET high during fault conditions and pulls it low when VCC is valid. This eliminates the need for an external pull-up resistor, reducing BOM count and PCB area - confirmed in the Functional Block Diagram and Pin Descriptions section of DS39140.
Can APX810S05-23SA-7 operate reliably during fast VCC transients?
Yes. The reset comparator is explicitly designed to ignore fast transients on VCC, as stated in the device description. Absolute Maximum Ratings confirm 6,000V HBM ESD rating, and timing diagrams show robust response to sub-20µs dips - making it suitable for noisy power rails in motor drives and switching power supply environments.
Is APX810S05-23SA-7 compliant with environmental regulations?
Yes. APX810S05-23SA-7 is fully RoHS 3 compliant (2015/863/EU), lead-free, halogen-free, and antimony-free - defined as <900ppm Br, <900ppm Cl (<1500ppm total Br+Cl), and <1000ppm Sb. This is verified in Notes 1–3 of DS39140 and Diodes' official "Green" product documentation.
APX810S05-23SA-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:
- 20ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
APX810S05-23SA-7 FAQ
1.How can I place an order for APX810S05-23SA-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for APX810S05-23SA-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 APX810S05-23SA-7 reliable?
The price and inventory of APX810S05-23SA-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for APX810S05-23SA-7 is usually 5 days.
3.What payment methods are accepted for APX810S05-23SA-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for APX810S05-23SA-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for APX810S05-23SA-7?
APX810S05-23SA-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your APX810S05-23SA-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 APX810S05-23SA-7?
For technical support, including APX810S05-23SA-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your APX810S05-23SA-7 requirements.
6.How does Aetrix verify that APX810S05-23SA-7 is sourced from the original manufacturer or authorized distributors?
All APX810S05-23SA-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 APX810S05-23SA-7 meets industry standards.
7.What is the process for return or replacement of APX810S05-23SA-7?
All APX810S05-23SA-7 units undergo pre-shipment inspection (PSI). If there is an issue with APX810S05-23SA-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 APX810S05-23SA-7 part is unused and in its original packaging.
Return procedure for APX810S05-23SA-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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