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Diodes Incorporated APX810S00-29SR-7
- Part No.:
- APX810S00-29SR-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
APX810S00-29SR-7.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:2,990
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Product details
Overview
APX810S00-29SR-7 from Diodes Incorporated is a micro-power voltage detector IC designed for µP supervisory circuits in digital systems. It provides active-high reset assertion when VCC drops below 2.93V (typ.), maintains reset for ≥240ms after VCC recovery, and operates with supply current as low as 7µA (typ.) across VCC = 1.0V to 5.5V. Used in portable equipment and critical µP power monitoring.
For engineers reviewing the APX810S00-29SR-7 datasheet, APX810S00-29SR-7 pinout, APX810S00-29SR-7 application, or APX810S00-29SR-7 equivalent, key selection criteria include reset threshold accuracy (±0.04V), guaranteed reset validity down to VCC = 1V, push-pull output drive capability (1.2mA sink), temperature-stable threshold (30ppm/°C), and SOT23-SR package compatibility with space-constrained PCB layouts.
Technical Context
The APX810S00-29SR-7 integrates a precision bandgap reference and comparator to monitor VCC against a fixed 2.93V threshold. Its internal timing circuit ensures a minimum 240ms reset pulse width after VCC exceeds VTH, independent of external components.
Designed for robust operation in industrial environments, it guarantees correct logic state at VCC ≥ 1V, rejects fast transients on VCC, and delivers push-pull RESET output capable of sinking 1.2mA at VOL ≤ 0.3V while sourcing current into high-impedance loads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.93V (typ.), ±0.04V tolerance - ensures reliable detection of 3.0V rail collapse before µP malfunction |
| Supply Current | 7µA (typ.) - enables multi-year battery life in portable devices without compromising supervision accuracy |
| Reset Pulse Width | 240ms (min.) - satisfies µP power-on reset timing requirements per Intel/ARM specifications |
| VCC Operating Range | 1.0V to 5.5V - supports valid reset assertion during brown-out and deep-sleep wake-up sequences |
| Output Type | Push-pull active-high - eliminates need for external pull-up resistor, reduces BOM count and board area |
| Temp Coefficient | 30ppm/°C - maintains threshold stability across -40°C to +125°C ambient, critical for automotive under-hood use |
Pinout & Package
APX810S00-29SR-7 is housed in a RoHS-compliant, halogen-free SOT23-3 (SR) package with 1.3mm pitch, optimized for automated placement and reflow soldering in high-volume manufacturing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for internal comparator and output stage; must be connected to system ground plane for noise immunity |
| 2 | RESET | Active-high push-pull reset output; drives µP /RESET pin directly without external components |
| 3 | VCC | Power supply input; powers internal circuitry and defines monitored rail - no decoupling capacitor required due to low ICC |
Key Features
| Feature | Design Value |
|---|---|
| Precision 2.93V threshold | Enables accurate supervision of 3.0V logic rails with minimal margin loss versus µP VDD_MIN spec |
| Guaranteed reset at VCC = 1V | Ensures deterministic reset behavior during ultra-low-power wake-up from deep sleep modes |
| No external components required | Reduces total solution size by >2mm² and eliminates tuning/calibration steps in production test |
| SOT23-SR footprint | Matches industry-standard 3-pin supervisor layout, enabling drop-in replacement in existing designs |
| 6kV HBM ESD rating | Provides robust handling during assembly and protects against field-induced latch-up in end-equipment |
Applications
| Battery-Powered IoT Sensor Node | Industrial PLC I/O Module |
|---|---|
Use Scenario: A wireless sensor node powered by a single Li-ion cell experiences gradual voltage sag during discharge cycles. IC Role / Device Role / Timing Role: Voltage detector monitors VCC and asserts RESET to halt MCU execution before undervoltage causes memory corruption or peripheral lockup. Use Value: 7µA quiescent current extends battery life beyond 5 years; 240ms reset hold time ensures full MCU initialization upon recharge. | Use Scenario: An industrial PLC module must maintain deterministic startup sequencing after AC power interruption. IC Role / Device Role / Timing Role: Supervises the 3.3V logic rail and generates a clean, glitch-free reset pulse to synchronize FPGA configuration and firmware boot. Use Value: Push-pull output drives heavy capacitive loads (≥100pF) without rise-time degradation; 30ppm/°C drift prevents false resets over wide temperature swings. |
| Medical Handheld Diagnostic Device | Automotive Body Control Module (BCM) |
Use Scenario: A portable ultrasound device uses a 3.0V rail derived from a buck converter; transient load steps cause brief dips near threshold. IC Role / Device Role / Timing Role: Detects sustained undervoltage (not transients) and holds RESET until stable operation resumes, preventing corrupted image capture. Use Value: Internal transient rejection avoids spurious resets during motor actuation or display backlight switching. | Use Scenario: BCM microcontroller requires guaranteed reset during cold-cranking when battery voltage drops to 6V for 100ms. IC Role / Device Role / Timing Role: Monitors 3.3V domain supplied by LDO; asserts RESET if input rail collapses below 2.93V for >20µs, holding for 240ms post-recovery. Use Value: Valid operation down to VCC = 1V ensures reset remains asserted even during severe brown-out events common in 12V automotive systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809TRD2T | 2.93V threshold, 240ms reset timeout, but SOT23-3 SA pinout (pin 1 = RESET, pin 2 = GND) | SA pinout incompatible with SR-layout PCBs; requires redesign of footprint and routing | Select only if migrating legacy SA-based designs or accepting layout revision |
| TPS3808G18DBVR | Adjustable threshold via external resistor divider; 200ms typ. timeout; higher ICC (1.1µA min) | Requires two external resistors and capacitor; less suitable for ultra-low-power or space-constrained designs | Choose when programmable threshold or longer timeout customization is needed |
Compared with MAX809TRD2T and TPS3808G18DBVR, APX810S00-29SR-7 offers pinout-matched SOT23-SR compatibility, lowest typical supply current (7µA), and zero external component requirement - making it optimal for cost-sensitive, high-volume, and battery-operated applications where fixed 2.93V supervision suffices.
Availability
APX810S00-29SR-7 is available at Aetrix Electronics and suitable for battery-powered IoT nodes, industrial PLC modules, medical handheld diagnostics, and automotive body control units requiring stable component supply and long-term lifecycle support.
Supply support for APX810S00-29SR-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, energy-efficient solutions for industrial, computing, and consumer markets.
This part belongs to the APX809S/810S micro-power voltage detector family, engineered specifically for low-cost, zero-component µP supervision in space- and power-constrained digital systems.
FAQ
What is the exact reset threshold voltage and its tolerance for APX810S00-29SR-7?
The APX810S00-29SR-7 has a nominal reset threshold of 2.93V at +25°C, with a guaranteed range of 2.89V to 2.97V across temperature and process variation. This 40mV total tolerance ensures reliable detection of 3.0V rail collapse while avoiding false triggers near nominal voltage.
Does APX810S00-29SR-7 require an external pull-up resistor on the RESET pin?
No. The APX810S00-29SR-7 features a push-pull output stage that actively drives HIGH and LOW states. Unlike open-drain supervisors, it eliminates the need for an external pull-up resistor, reducing component count, PCB area, and potential signal integrity issues from resistor parasitics.
Can APX810S00-29SR-7 operate reliably at VCC = 1.2V?
Yes. The device guarantees correct RESET logic state down to VCC = 1.0V, including proper assertion and de-assertion timing. At 1.2V, it continues to monitor and assert RESET if VCC falls below 2.93V (though this condition implies upstream regulation failure), and maintains functional reset behavior throughout the specified operating range.
What is the thermal resistance (θJA) of the SOT23-SR package used in APX810S00-29SR-7?
The SOT23-SR package has a junction-to-ambient thermal resistance (θJA) of 232°C/W, measured under standard JEDEC conditions (1squared inch 2oz copper). This value supports continuous operation up to +125°C ambient when power dissipation remains below 2.2mW - well within the device's 7µA supply current limit.
APX810S00-29SR-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:
- 1ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
APX810S00-29SR-7 FAQ
1.How can I place an order for APX810S00-29SR-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for APX810S00-29SR-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 APX810S00-29SR-7 reliable?
The price and inventory of APX810S00-29SR-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for APX810S00-29SR-7 is usually 5 days.
3.What payment methods are accepted for APX810S00-29SR-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for APX810S00-29SR-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for APX810S00-29SR-7?
APX810S00-29SR-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your APX810S00-29SR-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 APX810S00-29SR-7?
For technical support, including APX810S00-29SR-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your APX810S00-29SR-7 requirements.
6.How does Aetrix verify that APX810S00-29SR-7 is sourced from the original manufacturer or authorized distributors?
All APX810S00-29SR-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 APX810S00-29SR-7 meets industry standards.
7.What is the process for return or replacement of APX810S00-29SR-7?
All APX810S00-29SR-7 units undergo pre-shipment inspection (PSI). If there is an issue with APX810S00-29SR-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 APX810S00-29SR-7 part is unused and in its original packaging.
Return procedure for APX810S00-29SR-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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