My Inquiry
My Account
Diodes Incorporated APX810S00-40SR-7
- Part No.:
- APX810S00-40SR-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
APX810S00-40SR-7.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:1,319
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
APX810S00-40SR-7 from Diodes Incorporated is an active-high microprocessor supervisory voltage detector in SOT23-3 package, designed to monitor +4.0V power rails and assert a reset signal when VCC drops below 3.94–4.05V. It delivers a 1.7ms typical reset timeout, consumes just 7µA supply current, and guarantees valid reset output down to VCC = 1.0V-ideal for battery-powered microcontroller systems requiring reliable power-on reset.
For engineers reviewing the APX810S00-40SR-7 datasheet, APX810S00-40SR-7 pinout, APX810S00-40SR-7 application, or APX810S00-40SR-7 equivalent, key selection criteria include reset threshold accuracy (±0.03V), push-pull output drive capability (1.2mA sink), temperature-stable operation (−40°C to +125°C), and SOT23 footprint compatibility with space-constrained embedded designs.
Technical Context
The APX810S00-40SR-7 integrates a precision bandgap reference and comparator to detect VCC falling below its 4.00V nominal threshold, with ±30ppm/°C temperature coefficient ensuring stability across industrial temperature ranges. Its internal timing circuit generates a fixed 1.7ms reset pulse width after VCC recovers above threshold, independent of external components.
It features a push-pull RESET output that drives high (VOH ≥ 0.8×VCC at 500µA source) when VCC is valid and low (VOL ≤ 0.3V at 1.2mA sink) during reset-eliminating need for external pull-up resistors and supporting direct interface to µP reset inputs compliant with TTL or CMOS logic levels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 3.94–4.05V (ensures reliable detection of +4.0V rail sag before system instability) |
| Reset Timeout | 1.0–3.3ms typ. (guarantees sufficient hold time for microprocessor initialization) |
| Supply Current | 7µA typ. (enables multi-year operation in coin-cell–powered IoT sensors) |
| Valid Reset Range | VCC ≥ 1.0V (maintains defined logic state even during brownout or battery depletion) |
| Output Type | Push-pull active-high (drives µP RESET pin directly without pull-up resistor) |
| Temp Range | −40°C to +125°C (supports automotive under-hood and industrial control environments) |
| ESD Rating | 6kV HBM (robust handling during PCB assembly and field service) |
Pinout & Package
APX810S00-40SR-7 is housed in a RoHS-compliant, halogen-free SOT23-3 package (JEDEC TO-236AB), with 1.3mm × 2.9mm footprint and 0.95mm height-optimized for automated placement and reflow soldering in high-density PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (GND) | Ground Reference | Return path for internal comparator and output stage; must be connected to system ground plane for noise immunity |
| 2 (RESET) | Active-High Reset Output | Push-pull digital output asserted high when VCC ≥ threshold; sinks 1.2mA minimum during reset assertion |
| 3 (VCC) | Supply Input | Monitored power rail input; powers internal circuitry and defines reset threshold reference |
Key Features
| Feature | Design Value |
|---|---|
| Precision 4.0V Threshold | ±1.5% tolerance over temperature ensures consistent reset point across −40°C to +125°C |
| No External Components | Integrated timing and reference eliminate capacitors, resistors, and trimming-reducing BOM count and layout area |
| Low 7µA Quiescent Current | Enables use in always-on battery-backed systems without compromising runtime |
| Guaranteed Operation to 1.0V | Ensures deterministic reset behavior during deep brownout, preventing undefined µP states |
| SOT23-3 "Green" Package | Lead-free, halogen-free construction meets RoHS 3 and JEDEC MSL Level 1 requirements |
Applications
| Portable Medical Sensors | Industrial PLC I/O Modules |
|---|---|
Use Scenario: Wearable ECG patch monitoring battery voltage and triggering firmware-safe shutdown before power collapse. IC Role / Device Role / Timing Role: Voltage detector asserting active-high RESET to halt ADC sampling and preserve flash integrity during brownout. Use Value: 1.7ms guaranteed reset pulse ensures full register save before power loss, while 7µA current extends single-CR2032 life beyond 3 years. | Use Scenario: DIN-rail mounted controller maintaining watchdog supervision of 24V DC-to-5V DC converter output. IC Role / Device Role / Timing Role: Monitors +4.0V intermediate rail derived from 5V LDO; asserts RESET on undervoltage to prevent corrupted Modbus frame transmission. Use Value: 4.00V threshold matches LDO dropout margin; −40°C to +125°C rating supports uncooled cabinet deployment. |
| Smart Meter Battery Backup | Automotive Body Control Module |
Use Scenario: AMI meter retaining real-time clock and tamper log during main AC failure, powered by supercapacitor. IC Role / Device Role / Timing Role: Detects supercapacitor decay below 4.0V and initiates graceful RTC freeze and nonvolatile memory write. Use Value: Valid reset output down to 1.0V allows full utilization of supercapacitor discharge curve, maximizing backup duration. | Use Scenario: BCM microcontroller reset coordination during cold-cranking when battery dips to 6V with ripple. IC Role / Device Role / Timing Role: Supervises 5V rail feeding MCU core; ignores <20µs transients but asserts RESET on sustained 4.0V drop. Use Value: 20µs transient immunity prevents false resets during starter motor engagement; push-pull output drives MCU reset without external bias. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS3808G01QDBVRQ1 | Adjustable threshold via external resistor divider; 3.0µA IQ; requires external capacitor for delay tuning | Used where programmable reset timing or multiple rail monitoring is needed | Select when design requires configurable timeout or multi-voltage supervision |
| MAX809SEUR+T | Fixed 4.00V threshold; open-drain output; 15µA IQ; 240ms reset timeout | Requires external pull-up; suited for legacy µP with open-drain reset input | Select only if existing schematic uses open-drain topology and longer timeout is acceptable |
Compared with TPS3808G01QDBVRQ1 and MAX809SEUR+T, the APX810S00-40SR-7 offers lowest quiescent current (7µA), shortest fixed timeout (1.7ms), and push-pull output-making it optimal for compact, low-power, fast-recovery embedded systems where board space and battery life are critical.
Availability
APX810S00-40SR-7 is available at Aetrix Electronics and suitable for portable medical sensors, industrial PLC I/O modules, smart meter battery backup, and automotive body control module applications requiring stable component supply, long-lifecycle availability, and RoHS-compliant sourcing.
Supply support for APX810S00-40SR-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 belongs to Diodes' micro-power voltage supervisor product line, engineered specifically for cost-sensitive, space-constrained embedded systems needing precise, low-current power monitoring without external components.
FAQ
What is the exact reset threshold voltage range for APX810S00-40SR-7?
The APX810S00-40SR-7 has a guaranteed reset threshold range of 3.94V to 4.05V at +25°C, with ±30ppm/°C temperature coefficient. This means the threshold remains within 3.91V to 4.08V across the full −40°C to +125°C operating range, ensuring consistent performance in varying thermal environments.
Does APX810S00-40SR-7 require an external pull-up resistor on the RESET pin?
No. The APX810S00-40SR-7 features a push-pull output stage capable of actively driving high (VOH ≥ 0.8×VCC) and low (VOL ≤ 0.3V at 1.2mA). This eliminates the need for an external pull-up resistor, reducing component count and PCB area while improving noise immunity and switching speed.
Can APX810S00-40SR-7 operate reliably at VCC = 1.2V?
Yes. The device guarantees correct RESET logic state (high when VCC ≥ threshold, low otherwise) down to VCC = 1.0V. At 1.2V, it maintains full functionality-including accurate threshold comparison and valid output drive-making it suitable for ultra-low-voltage brownout recovery in energy-harvesting or supercapacitor-backed systems.
How does the 1.7ms reset timeout behave during rapid VCC fluctuations?
The 1.7ms timeout is generated by an internal monostable circuit triggered only when VCC rises above the threshold by ≥2%, and it holds RESET active for the full duration regardless of subsequent minor dips. Transients shorter than 20µs are ignored per design, preventing spurious resets during switching noise or load-step events.
APX810S00-40SR-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:
- 4V
- 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
APX810S00-40SR-7 FAQ
1.How can I place an order for APX810S00-40SR-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for APX810S00-40SR-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 APX810S00-40SR-7 reliable?
The price and inventory of APX810S00-40SR-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for APX810S00-40SR-7 is usually 5 days.
3.What payment methods are accepted for APX810S00-40SR-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for APX810S00-40SR-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for APX810S00-40SR-7?
APX810S00-40SR-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your APX810S00-40SR-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 APX810S00-40SR-7?
For technical support, including APX810S00-40SR-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your APX810S00-40SR-7 requirements.
6.How does Aetrix verify that APX810S00-40SR-7 is sourced from the original manufacturer or authorized distributors?
All APX810S00-40SR-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 APX810S00-40SR-7 meets industry standards.
7.What is the process for return or replacement of APX810S00-40SR-7?
All APX810S00-40SR-7 units undergo pre-shipment inspection (PSI). If there is an issue with APX810S00-40SR-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 APX810S00-40SR-7 part is unused and in its original packaging.
Return procedure for APX810S00-40SR-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
APX810S00-40SR-7 Tags
-
MIC826SYMT-TR
Microchip Technology
-
APX803S-31SA-7
Diodes Incorporated
-
APX803L20-29SA-7
Diodes Incorporated
-
TPS3828-33DBVR
Texas Instruments
-
V6340RSP3B+
EM Microelectronic
-
EM6325CXSP5B-2.9+
EM Microelectronic
-
MCP120T-300I/TT
Microchip Technology
-
MCP130T-315I/TT
Microchip Technology
-
MCP120T-475I/TT
Microchip Technology
-
MCP111T-300E/TT
Microchip Technology
-
MCP120T-315I/TT
Microchip Technology
-
MCP809T-315I/TT
Microchip Technology
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
