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Diodes Incorporated APX810S-46SA-7
- Part No.:
- APX810S-46SA-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
APX810S-46SA-7.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:7,569
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Product details
Overview
APX810S-46SA-7 from Diodes Incorporated is a micro-power voltage detector IC designed for µP supervisory functions in 5V digital systems. It provides active-high push-pull reset output with a precision 4.63V threshold (±0.06V), 240ms minimum reset timeout, 7µA typical supply current, and guaranteed operation down to VCC = 1V - used in battery-backed controllers and portable instrumentation.
For engineers reviewing the APX810S-46SA-7 datasheet, APX810S-46SA-7 pinout, APX810S-46SA-7 application, or APX810S-46SA-7 equivalent, key selection criteria include reset threshold accuracy, temperature coefficient (30 ppm/°C), low-VCC validity, push-pull drive strength, and SOT23-3 footprint compatibility in space-constrained embedded power monitoring.
Technical Context
The APX810S-46SA-7 integrates a precision bandgap reference, comparator, and power-on reset timer in a single die. Its reset assertion logic triggers when VCC falls below 4.63V and holds RESET high for ≥240ms after VCC rises above threshold - independent of supply ramp rate.
Designed for immunity to fast transients, it guarantees correct logic state across -40°C to +125°C ambient and supports sink/source currents up to 1.2mA at VCC ≥ 4.83V while consuming only 7µA typical quiescent current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 4.63V (typ), ±0.06V tolerance - ensures reliable detection of 5V rail collapse before µP malfunction |
| Reset Timeout | 240ms (min) - meets JEDEC JESD84-B51 power-on reset hold time for ARM Cortex-M and similar MCUs |
| Supply Current | 7µA (typ) - enables multi-year battery life in coin-cell–powered IoT sensors and wearables |
| Operating VCC Range | 1.0V to 5.5V - allows valid reset assertion during brownout recovery and ultra-low-power sleep exit |
| Output Type | Push-pull active-high - eliminates external pull-up resistor, reduces BOM count and PCB area |
| Temp Coefficient | 30 ppm/°C - maintains <±20mV drift over -40°C to +125°C, critical for automotive under-hood use |
Pinout & Package
SOT23-3 (SA) package: 1.30mm × 2.40mm × 0.915mm body, gull-wing leads, 0.975mm pitch, RoHS-compliant "Green" molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for internal comparator and output stage - must connect to system power plane with low-impedance path |
| 2 | RESET | Active-high push-pull output - drives MCU /RESET pin directly; sinks 1.2mA or sources 0.5mA at VCC ≥ 4.83V |
| 3 | VCC | Supply input - powers internal circuitry; requires local 100nF ceramic decoupling within 3mm of pin |
Key Features
| Feature | Design Value |
|---|---|
| Precision 4.63V threshold | Enables accurate supervision of nominal 5V rails without trimming resistors or calibration |
| 240ms reset timeout | Guarantees sufficient hold time for full µP initialization, including flash wake-up and PLL lock |
| Valid down to VCC = 1V | Ensures deterministic reset behavior during deep brownout and battery depletion scenarios |
| 7µA supply current | Reduces standby power by >90% vs. discrete reset solutions using comparators and RC timers |
| No external components | Eliminates BOM cost, layout area, and reliability risk associated with external R/C networks |
Applications
| Industrial PLC Controller | Portable Medical Monitor |
|---|---|
Use Scenario: Supervises 5V auxiliary rail powering ARM-based controller in DIN-rail mounted PLC. IC Role / Device Role / Timing Role: Voltage detector asserting active-high RESET to prevent firmware corruption during AC line sag. Use Value: 30 ppm/°C tempco ensures stable 4.63V trip point across -25°C to +70°C cabinet temperatures. | Use Scenario: Monitors main Li-ion battery–derived 5V rail in handheld ECG device with 10-year shelf life target. IC Role / Device Role / Timing Role: Micro-power supervisor enabling >5-year battery runtime via 7µA quiescent draw and no external bias network. Use Value: Valid reset assertion down to VCC = 1V prevents spurious wake-up during end-of-life battery discharge. |
| Automotive Body Control Module | Smart Energy Meter |
Use Scenario: Detects 5V system rail integrity in BCM during cold-crank (battery dips to 6V) and load-dump events. IC Role / Device Role / Timing Role: Immune-to-transient voltage detector holding RESET high for ≥240ms post-recovery to ensure MCU safe boot. Use Value: Push-pull output drives 10kΩ MCU /RESET pin directly - no pull-up needed, reducing thermal stress on PCB traces. | Use Scenario: Supervises isolated 5V DC-DC output powering metrology SoC and RF transceiver in AMI meter. IC Role / Device Role / Timing Role: Single-chip reset generator replacing discrete TLV7031 + RC timer, improving long-term stability. Use Value: SOT23-3 footprint fits tight space behind meter's LCD bezel while meeting IEC 62056 creepage requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage detector applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809SEUR+T | 4.63V threshold, open-drain output, 140ms min timeout, 10µA ICC | Requires external pull-up; shorter timeout may not meet ARM boot timing | Choose if board already uses open-drain reset topology and space permits pull-up resistor |
| TPS3808G33DBVR | 3.3V threshold, adjustable via external resistor, 200ms timeout, 12µA ICC | Fixed 3.3V trip unsuitable for 5V rail; adjustment adds component count and tolerance error | Only viable if redesigning for 3.3V core supply and accepting higher quiescent current |
Compared with MAX809SEUR+T and TPS3808G33DBVR, APX810S-46SA-7 delivers superior 5V-rail specificity, lower ICC, guaranteed 240ms hold time, and push-pull simplicity - making it optimal for new 5V µP designs where BOM reduction and timing margin are critical.
Availability
APX810S-46SA-7 is available at Aetrix Electronics and suitable for industrial PLC controllers, portable medical monitors, automotive body control modules, and smart energy meters requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for APX810S-46SA-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 semiconductor company specializing in discrete, analog, and mixed-signal devices for power management, signal integrity, and protection applications.
The APX809S/810S series belongs to Diodes' µP supervisory product line, engineered specifically for low-cost, high-reliability power monitoring in space- and power-constrained embedded systems.
FAQ
What is the exact reset threshold voltage and tolerance for APX810S-46SA-7?
The APX810S-46SA-7 has a nominal reset threshold of 4.63V, with a guaranteed range of 4.57V to 4.69V at +25°C. This ±0.06V tolerance ensures precise detection of 5V rail collapse without false triggering during normal ripple or noise.
Does APX810S-46SA-7 require an external pull-up resistor on the RESET pin?
No. The APX810S-46SA-7 features a push-pull output stage that actively drives RESET high or low - eliminating the need for an external pull-up resistor and reducing both BOM cost and PCB layout complexity.
Can APX810S-46SA-7 operate reliably below 2.0V VCC?
Yes. The device guarantees correct reset logic state down to VCC = 1.0V, enabling robust brownout detection during battery depletion or unregulated supply conditions - a capability confirmed in Diodes' DS39140 Rev. 2-2 electrical characteristics table.
What is the thermal resistance and maximum junction temperature for SOT23-3 package?
The SOT23-3 (SA) package has θJA = 232°C/W and θJC = 87°C/W. Maximum junction temperature is +150°C, validated across -40°C to +125°C ambient per Diodes' recommended operating conditions and absolute maximum ratings.
APX810S-46SA-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:
- 4.63V
- 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-46SA-7 FAQ
1.How can I place an order for APX810S-46SA-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for APX810S-46SA-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-46SA-7 reliable?
The price and inventory of APX810S-46SA-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-46SA-7 is usually 5 days.
3.What payment methods are accepted for APX810S-46SA-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for APX810S-46SA-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for APX810S-46SA-7?
APX810S-46SA-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your APX810S-46SA-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-46SA-7?
For technical support, including APX810S-46SA-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your APX810S-46SA-7 requirements.
6.How does Aetrix verify that APX810S-46SA-7 is sourced from the original manufacturer or authorized distributors?
All APX810S-46SA-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-46SA-7 meets industry standards.
7.What is the process for return or replacement of APX810S-46SA-7?
All APX810S-46SA-7 units undergo pre-shipment inspection (PSI). If there is an issue with APX810S-46SA-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-46SA-7 part is unused and in its original packaging.
Return procedure for APX810S-46SA-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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