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Diodes Incorporated APX810S05-29SA-7
- Part No.:
- APX810S05-29SA-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
APX810S05-29SA-7.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:2,992
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Product details
Overview
APX810S05-29SA-7 from Diodes Incorporated is a micro-power voltage detector IC designed for µP supervisory functions in 2.93V nominal 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 = 1V - deployed in battery-powered controllers and portable instrumentation.
For engineers reviewing the APX810S05-29SA-7 datasheet, APX810S05-29SA-7 pinout, APX810S05-29SA-7 application, or APX810S05-29SA-7 equivalent, key selection criteria include reset threshold accuracy (±0.04V), temperature coefficient (30ppm/°C), push-pull drive capability (1.2mA sink), and SOT23-3 package compatibility with space-constrained PCB layouts.
Technical Context
The device implements a precision bandgap-based voltage comparator with hysteresis-free threshold detection at 2.93V (typical), validated across –40°C to +125°C ambient. Its internal timing circuit generates a fixed 50ms (typ) reset assertion window after VCC recovery, independent of external components.
Reset logic is synchronized to VCC transitions without requiring clock input; the push-pull output stage eliminates need for external pull-up resistors and ensures valid logic levels (VOH ≥ 0.8VCC, VOL ≤ 0.3V) over full operating range (VCC = 1.0–5.5V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.93V (typ), ±0.04V tolerance - enables precise 2.9V rail supervision without calibration |
| Reset Timeout | 50ms (typ), 20–70ms (min–max) - ensures reliable µP initialization after brownout recovery |
| Supply Current | 7µA (typ), ≤16µA (max) - supports multi-year battery life in always-on monitoring nodes |
| Operating Voltage | 1.0–5.5V - guarantees reset validity even during deep brownout (down to 1V) |
| Output Type | Push-pull active-high - drives loads directly without external pull-up; sinks 1.2mA at VOL ≤ 0.3V |
| Temp Coefficient | 30ppm/°C - maintains threshold stability across industrial temperature range |
| VCC Transient Immunity | Rejects <20µs fast transients - prevents false resets from switching noise or ESD coupling |
Pinout & Package
SOT23-3 (SA) package: 2.9mm × 1.3mm footprint, 1.1mm height, gull-wing leads, RoHS-compliant "Green" molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Reference ground return for comparator and output stage; must be low-impedance connection to system ground plane |
| 2 | RESET | Active-high push-pull output; asserts high during reset condition; drives µP RESET# input directly |
| 3 | VCC | Power supply input; powers internal circuitry and defines monitored rail; operates down to 1.0V |
Key Features
| Feature | Design Value |
|---|---|
| Precision 2.93V threshold | Enables accurate supervision of 2.9V LDO outputs without trimming or feedback networks |
| 50ms typ reset timeout | Meets JEDEC JESD78 requirement for minimum reset pulse width in µP systems |
| 7µA supply current | Reduces quiescent power in always-on battery-backed supervisors by >5× vs. legacy solutions |
| Push-pull active-high output | Eliminates external pull-up resistor, saving BOM cost and PCB area in high-volume designs |
| Valid operation to VCC = 1V | Ensures deterministic reset behavior during deep undervoltage events before shutdown |
Applications
| Portable Medical Sensors | Industrial PLC I/O Modules |
|---|---|
Use Scenario: Battery-powered glucose monitor with BLE radio and low-power MCU. IC Role / Device Role / Timing Role: Monitors 2.9V LDO output powering MCU core; asserts RESET until stable post-battery insertion. Use Value: 7µA current draw extends single-CR2032 battery life beyond 3 years in sleep mode. | Use Scenario: DIN-rail mounted analog input module operating in factory ambient (-40°C to +85°C). IC Role / Device Role / Timing Role: Supervises 2.9V digital supply feeding FPGA configuration logic and ADC interface. Use Value: 30ppm/°C threshold drift ensures reset remains within ±0.1% over full temperature range. |
| Smart Energy Meters | Automotive Body Control Units |
Use Scenario: ANSI C12.20-compliant electricity meter with tamper-detection circuitry. IC Role / Device Role / Timing Role: Detects brownout on 2.9V RTC backup rail during main power loss; triggers secure shutdown sequence. Use Value: Guaranteed reset validity at VCC = 1V prevents data corruption during final capacitor discharge phase. | Use Scenario: 12V automotive subsystem with local 2.9V domain for CAN transceiver and wake logic. IC Role / Device Role / Timing Role: Monitors 2.9V supply derived from buck converter; initiates controlled MCU reset on load-dump transient. Use Value: 20µs transient immunity rejects ISO 7637-2 Pulse 1/2a noise without false triggering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV803EB29DBZR | 2.93V threshold, open-drain output, 1.6µA IQ, 200ms reset timeout | Requires external pull-up; longer timeout suits slower µP boot sequences | Select when ultra-low IQ dominates design priority and board space allows pull-up resistor |
| MAX809SEUR+T | 2.93V threshold, push-pull active-low output, 15µA IQ, 240ms reset timeout | Inverted logic requires MCU RESET# pin compatibility check; higher IQ impacts battery life | Select only if existing design uses active-low reset and 240ms timeout is acceptable |
Compared with TLV803EB29DBZR and MAX809SEUR+T, APX810S05-29SA-7 uniquely balances 7µA IQ, 50ms timeout, and active-high push-pull output - optimizing for compact, battery-sensitive systems needing fast, resistorless reset assertion.
Availability
APX810S05-29SA-7 is available at Aetrix Electronics and suitable for portable medical sensors, industrial PLC I/O modules, smart energy meters, and automotive body control units requiring stable component supply and long-term lifecycle support.
Supply support for APX810S05-29SA-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, headquartered in Plano, Texas, with design centers across Asia and manufacturing in China, Taiwan, and Malaysia.
This part belongs to the APX8xxS series of micro-power voltage supervisors - engineered specifically for cost-sensitive, space-constrained applications requiring high-accuracy supply monitoring without external components.
FAQ
What is the exact reset threshold voltage for APX810S05-29SA-7?
The APX810S05-29SA-7 has a nominal reset threshold of 2.93V, with guaranteed min/max values of 2.89V and 2.97V respectively at +25°C. This value is specified in the Electrical Characteristics table of DS39140 Rev. 2–2, page 4, under symbol VTH for APX810SXX-29 variants.
Does APX810S05-29SA-7 require an external capacitor for reset timing?
No - the 50ms (typ) reset timeout is generated entirely by internal circuitry. The device contains no RC timing elements and requires zero external components for basic operation, as confirmed in the Description section (page 1) and Functional Block Diagram (page 3) of the datasheet.
Can APX810S05-29SA-7 operate with a 1.8V supply?
No - while the device guarantees valid reset output down to VCC = 1.0V, its reset threshold is fixed at 2.93V. Applying VCC = 1.8V places the supply below threshold, causing continuous RESET assertion, but the device remains functional per Recommended Operating Conditions (VCC min = 1.0V, page 4).
Is the SOT23-3 (SA) package lead-free and RoHS compliant?
Yes - the APX810S05-29SA-7 uses a fully lead-free, halogen- and antimony-free "Green" molding compound, compliant with EU RoHS 2011/65/EU and RoHS 3 2015/863/EU directives, as stated in the Features section (page 1) and Notes 1–3 (page 2) of DS39140.
APX810S05-29SA-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:
- 2.93V
- 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
APX810S05-29SA-7 FAQ
1.How can I place an order for APX810S05-29SA-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for APX810S05-29SA-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 APX810S05-29SA-7 reliable?
The price and inventory of APX810S05-29SA-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for APX810S05-29SA-7 is usually 5 days.
3.What payment methods are accepted for APX810S05-29SA-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for APX810S05-29SA-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for APX810S05-29SA-7?
APX810S05-29SA-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your APX810S05-29SA-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 APX810S05-29SA-7?
For technical support, including APX810S05-29SA-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your APX810S05-29SA-7 requirements.
6.How does Aetrix verify that APX810S05-29SA-7 is sourced from the original manufacturer or authorized distributors?
All APX810S05-29SA-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 APX810S05-29SA-7 meets industry standards.
7.What is the process for return or replacement of APX810S05-29SA-7?
All APX810S05-29SA-7 units undergo pre-shipment inspection (PSI). If there is an issue with APX810S05-29SA-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 APX810S05-29SA-7 part is unused and in its original packaging.
Return procedure for APX810S05-29SA-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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