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Diodes Incorporated APX810S05-46SA-7
- Part No.:
- APX810S05-46SA-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
APX810S05-46SA-7.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:2,243
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Product details
Overview
APX810S05-46SA-7 from Diodes Incorporated is a micro-power voltage detector IC designed for µP supervisory functions in 4.63V supply monitoring applications. It provides active-high push-pull RESET output with 50ms typical reset timeout, 7µA typical supply current, and guaranteed operation down to VCC = 1.0V - used in battery-powered controllers and embedded systems requiring reliable power-on reset assertion.
For engineers reviewing the APX810S05-46SA-7 datasheet, APX810S05-46SA-7 pinout, APX810S05-46SA-7 application, or APX810S05-46SA-7 equivalent, key selection criteria include reset threshold accuracy (4.57–4.69V), temperature coefficient (30ppm/°C), low ICC (7µA typ), push-pull drive capability (VOH ≥ 0.8VCC at 500µA), and SOT23-3 package compatibility with space-constrained PCB layouts.
Technical Context
The APX810S05-46SA-7 integrates a precision bandgap reference and comparator to monitor VCC against a factory-trimmed 4.63V threshold. Its internal timing circuit generates a fixed 50ms (typ) active-high RESET pulse after VCC rises above threshold, independent of external components.
It features push-pull output stage capable of sourcing ≥500µA at VOH ≥ 0.8VCC and sinking ≥1.2mA at VOL ≤ 0.3V, with immunity to fast transients and guaranteed logic-state validity down to VCC = 1.0V - enabling robust operation during brown-out recovery in portable digital systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 4.63V (typ), 4.57–4.69V (min/max) - ensures reliable detection of 4.6V nominal supplies with ±1.3% tolerance over temperature. |
| Reset Timeout | 50ms (typ), 20–70ms (min/max) - provides sufficient hold time for µP initialization without external RC timing components. |
| Supply Current | 7µA (typ), 16µA (max) - enables multi-year battery life in always-on monitoring applications such as IoT sensors. |
| Output Type | Active-high push-pull - eliminates need for external pull-up resistor and supports direct interface to µP RESET input pins. |
| Operating Voltage | 1.0–5.5V - allows valid reset assertion during deep brown-out conditions and compatibility with 1.8V–5V logic domains. |
| Temp Coefficient | 30ppm/°C - maintains threshold stability across -40°C to +125°C ambient, critical for automotive and industrial environments. |
Pinout & Package
APX810S05-46SA-7 is housed in a RoHS-compliant, halogen-free SOT23-3 package (JEDEC TO-236AB), with 1.3mm × 2.4mm footprint and 0.95mm height - optimized for high-density PCB assembly and reflow compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (GND) | Ground Reference | Return path for internal comparator and output driver; must be connected to system ground plane for stable threshold reference. |
| 2 (RESET) | Active-High Push-Pull Output | Drives high (≥0.8VCC) when VCC ≥ threshold; drives low (≤0.3V) when VCC < threshold - directly interfaces µP RESET pin without pull-up. |
| 3 (VCC) | Supply Input | Power source and monitored rail; device operates and asserts reset correctly down to 1.0V, supporting ultra-low-VCC recovery sequences. |
Key Features
| Feature | Design Value |
|---|---|
| Precision 4.63V threshold | Factory-trimmed to ±1.3% over -40°C to +125°C - eliminates calibration overhead in production test and field reliability. |
| 50ms typ reset timeout | Internally generated timing with no external capacitor - reduces BOM count and layout area while ensuring consistent µP startup timing. |
| 7µA supply current | Enables >10-year battery life in coin-cell powered devices (e.g., CR2032 @ 220mAh) when monitoring standby rails. |
| Push-pull active-high output | Eliminates external pull-up resistor and associated leakage path - improves noise immunity and simplifies µP interface design. |
| VCC = 1.0V operation guarantee | Ensures valid reset state during severe brown-out and cold-start conditions - critical for fail-safe behavior in safety-critical subsystems. |
Applications
| Industrial PLC Controllers | Portable Medical Sensors |
|---|---|
|
Use Scenario: Monitoring 4.6V backup power rail in programmable logic controller I/O modules during AC mains failure. IC Role / Device Role / Timing Role: Voltage detector asserting active-high RESET to halt CPU execution and preserve register state until main supply recovers. Use Value: 50ms timeout ensures deterministic firmware restart after brown-out, while 7µA ICC minimizes drain on supercapacitor backup. |
Use Scenario: Supervising 4.6V Li-ion battery output in wearable ECG sensor before Bluetooth transmission. IC Role / Device Role / Timing Role: Active-high RESET generator preventing corrupted data capture during battery voltage sag below 4.57V. Use Value: Push-pull output eliminates pull-up resistor, reducing quiescent current and PCB area - essential for sub-10mm² wearable form factors. |
| Automotive Body Control Modules | Smart Energy Meters |
|
Use Scenario: Detecting undervoltage on 4.6V microcontroller supply in door module during cold cranking (battery dip to 6V). IC Role / Device Role / Timing Role: Precision threshold detector with 30ppm/°C drift - maintaining reset accuracy across -40°C to +125°C junction temperature range. Use Value: Guaranteed operation down to VCC = 1.0V prevents spurious resets during transient dips, improving ASIL-B functional safety compliance. |
Use Scenario: Power-on reset supervision for metrology SoC in DIN-rail mounted electricity meter with 4.6V LDO output. IC Role / Device Role / Timing Role: Single-chip supervisor replacing discrete comparator + RC timer - reducing component count and long-term drift risk. Use Value: Factory-trimmed 4.63V threshold eliminates field calibration, lowering manufacturing cost and improving batch-to-batch consistency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage detector applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV803EB46DBZR | 4.6V threshold, 200ms reset timeout, open-drain output, 1.8µA ICC | Requires external pull-up; longer timeout may delay µP startup in time-critical systems | Select if ultra-low ICC (<2µA) is prioritized over timing control and push-pull simplicity. |
| MAX809SEUR+T | 4.63V threshold, 240ms reset timeout, push-pull active-low output, 12µA ICC | Active-low output requires µP RESET pin compatibility check; higher ICC reduces battery life | Select if legacy active-low µP interface exists and 240ms hold time is acceptable for system boot sequence. |
Compared with TLV803EB46DBZR and MAX809SEUR+T, APX810S05-46SA-7 uniquely delivers 4.63V precision, 50ms timing, active-high push-pull output, and 7µA ICC in SOT23-3 - optimizing for compact, low-power, µP-reset-critical designs where timing predictability and interface simplicity are mandatory.
Availability
APX810S05-46SA-7 is available at Aetrix Electronics and suitable for industrial PLC controllers, portable medical sensors, and smart energy meters requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for APX810S05-46SA-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 manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability power management, signal integrity, and protection solutions for industrial, automotive, and consumer markets.
The APX809S/810S series targets cost-sensitive, space-constrained µP supervisory applications - delivering precision voltage detection, low ICC, and integrated timing in minimal SOT23-3 footprint for portable and embedded systems.
FAQ
What is the exact reset threshold voltage of APX810S05-46SA-7?
The APX810S05-46SA-7 has a factory-trimmed reset threshold of 4.63V (typical), with guaranteed min/max values of 4.57V and 4.69V across -40°C to +125°C operating temperature - confirmed in DS39140 Rev. 2-2 Table 1, Electrical Characteristics.
Does APX810S05-46SA-7 require an external pull-up resistor?
No. APX810S05-46SA-7 features a push-pull output stage that actively drives high (≥0.8VCC) and low (≤0.3V), eliminating the need for an external pull-up resistor - verified in Pin Descriptions and Electrical Characteristics sections of DS39140.
Can APX810S05-46SA-7 operate below 1.8V supply?
Yes. The device guarantees correct RESET logic state down to VCC = 1.0V, with full functionality including threshold comparison and output drive - specified in Recommended Operating Conditions and Electrical Characteristics tables of DS39140.
What is the meaning of "05" in the part number APX810S05-46SA-7?
The "05" denotes the reset timeout variant: 50ms typical active period after VCC rises above threshold - distinct from "00" (1.7ms) and standard "-" (240ms) variants, as defined in the Ordering Information section of DS39140.
APX810S05-46SA-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:
- 20ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
APX810S05-46SA-7 FAQ
1.How can I place an order for APX810S05-46SA-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for APX810S05-46SA-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 APX810S05-46SA-7 reliable?
The price and inventory of APX810S05-46SA-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for APX810S05-46SA-7 is usually 5 days.
3.What payment methods are accepted for APX810S05-46SA-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for APX810S05-46SA-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for APX810S05-46SA-7?
APX810S05-46SA-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your APX810S05-46SA-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 APX810S05-46SA-7?
For technical support, including APX810S05-46SA-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your APX810S05-46SA-7 requirements.
6.How does Aetrix verify that APX810S05-46SA-7 is sourced from the original manufacturer or authorized distributors?
All APX810S05-46SA-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 APX810S05-46SA-7 meets industry standards.
7.What is the process for return or replacement of APX810S05-46SA-7?
All APX810S05-46SA-7 units undergo pre-shipment inspection (PSI). If there is an issue with APX810S05-46SA-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 APX810S05-46SA-7 part is unused and in its original packaging.
Return procedure for APX810S05-46SA-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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