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Diodes Incorporated APX810S00-46SR-7
- Part No.:
- APX810S00-46SR-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
APX810S00-46SR-7.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:3,581
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Product details
Overview
APX810S00-46SR-7 from Diodes Incorporated is a micro-power voltage detector IC designed for µP supervisory functions in embedded digital systems. It provides active-high reset assertion when VCC drops below 4.63 V (typ.), maintains reset for ≥240 ms after recovery, operates down to 1.0 V supply, draws only 7 µA typical supply current, and features push-pull output in SOT23-3 (SR) package - used in battery-powered controllers requiring reliable power-on reset.
For engineers reviewing the APX810S00-46SR-7 datasheet, APX810S00-46SR-7 pinout, APX810S00-46SR-7 application, or APX810S00-46SR-7 equivalent, key selection criteria include reset threshold accuracy (±0.06 V), guaranteed operation at VCC = 1 V, 240 ms minimum timeout, push-pull drive capability (500 µA source / 1.2 mA sink), and SOT23-3 footprint compatibility with space-constrained designs.
Technical Context
This device implements a precision bandgap-based voltage comparator with hysteresis to reject fast VCC transients, coupled to a monostable timer that enforces minimum reset pulse width. The internal reference is trimmed to ±1.5% over temperature, and the reset logic state is guaranteed valid across full VCC range (1.0–5.5 V).
The push-pull output eliminates need for external pull-up resistors and supports direct interface to µP RESET inputs. Its low 7 µA supply current and operation down to 1 V enable use in brown-out detection during deep battery discharge in portable instrumentation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 4.63 V (typ.), ±0.06 V tolerance - ensures reliable detection of +5 V rail collapse before µP malfunction |
| Reset Timeout | 240 ms (min.) - guarantees sufficient hold time for µP initialization after power recovery |
| Supply Current | 7 µA (typ.) - enables multi-year operation on coin-cell batteries in always-on monitoring circuits |
| VCC Operating Range | 1.0 V to 5.5 V - supports reset assertion during deep brown-out and full rail operation |
| Output Type | Push-pull active-high - drives µP RESET pin directly without external components or level-shifting |
| Temp Coefficient | 30 ppm/°C - maintains threshold stability across -40°C to +125°C industrial ambient range |
| Reset Response Delay | 20 µs (max.) - detects rapid VCC dips faster than µP clock cycles, preventing spurious execution |
Pinout & Package
APX810S00-46SR-7 is housed in a RoHS-compliant, halogen-free SOT23-3 (SR) package with 1.3 mm × 2.9 mm footprint and 0.95 mm height - optimized for high-density PCB layouts and reflow-compatible assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for internal comparator and output stage; must be low-impedance connection to system ground plane |
| 2 | RESET | Active-high push-pull reset output; sinks up to 1.2 mA or sources up to 500 µA - directly interfaces µP RESET pin |
| 3 | VCC | Power supply input; monitors this rail for undervoltage; functional down to 1.0 V for brown-out detection |
Key Features
| Feature | Design Value |
|---|---|
| Precision 4.63 V threshold | Trimmed at wafer level to ±1.5% over temperature - eliminates manual calibration in production |
| No external components required | Integrated reference, comparator, timer, and push-pull driver - reduces BOM count and board area by >3 components |
| Guaranteed reset validity at 1 V | Ensures deterministic reset assertion even during severe battery sag - critical for data retention in nonvolatile systems |
| Transient-immune comparator | Rejects <20 µs VCC glitches - prevents false resets from switching noise or ESD-induced supply bounce |
| SOT23-3 "Green" package | Lead-free, halogen-free (Br+Cl <1500 ppm, Sb <1000 ppm) - meets IPC-1752A Class 1 reporting and EU RoHS 3 compliance |
Applications
| Industrial PLC Controller | Portable Medical Monitor |
|---|---|
Use Scenario: Power sequencing and brown-out protection in DIN-rail mounted programmable logic controllers operating from 24 V DC converted to 5 V. IC Role / Device Role / Timing Role: Voltage supervisor asserting active-high RESET to ARM Cortex-M7 MCU during input rail fluctuations or converter dropout. Use Value: Prevents firmware corruption by holding MCU in reset until 5 V rail stabilizes for ≥240 ms post-recovery - validated per IEC 61000-4-11 immunity testing. |
Use Scenario: Battery-backed vital signs monitor with Li-ion cell discharging from 4.2 V to 3.0 V, requiring safe shutdown before data loss. IC Role / Device Role / Timing Role: Undervoltage detector triggering controlled firmware save-and-halt sequence when VCC falls below 4.63 V. Use Value: Enables 100% data integrity during last 5% battery capacity by asserting reset at precise 4.63 V threshold - avoids premature shutdown or late detection. |
| Smart Energy Meter | Automotive Body Control Module |
Use Scenario: M-Bus powered electricity meter with auxiliary 5 V regulator subject to load-switching transients. IC Role / Device Role / Timing Role: Supervisory IC monitoring 5 V rail and asserting RESET to secure microcontroller during transient-induced dips. Use Value: Push-pull output drives MCU RESET without pull-up resistor - eliminates single-point failure mode and improves EMC robustness per EN 13757-3. |
Use Scenario: 12 V automotive subsystem (e.g., door module) using LDO to generate 5 V for MCU, exposed to load-dump and cold-crank conditions. IC Role / Device Role / Timing Role: Reset generator ensuring MCU remains held until post-cold-crank 5 V rail settles above 4.63 V for ≥240 ms. Use Value: Operates down to 1.0 V VCC - asserts reset during cranking (as low as 6 V battery) and recovers cleanly after restart, meeting ISO 16750-2 Pulse 4 requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809SEUR+T | 4.63 V threshold, 140–280 ms timeout, open-drain output requiring external pull-up | Lacks push-pull drive; adds component count and increases susceptibility to noise on RESET line | Choose only if legacy design uses open-drain topology and board space allows 10 kΩ pull-up |
| TPS3808G33DBVR | 3.3 V fixed threshold, 200 ms timeout, adjustable delay option, higher 12 µA ICC | Not pin-compatible; requires redesign for 4.63 V detection; suited for lower-voltage domains | Select only when system uses 3.3 V core rail and needs adjustable timeout or watchdog functionality |
Compared with MAX809SEUR+T and TPS3808G33DBVR, APX810S00-46SR-7 delivers precise 4.63 V detection with push-pull output and ultra-low 7 µA current in a drop-in SOT23-3 footprint - eliminating external components while ensuring robust reset timing for 5 V µP systems.
Availability
APX810S00-46SR-7 is available at Aetrix Electronics and suitable for industrial PLC controllers, portable medical monitors, smart energy meters, and automotive body control modules requiring stable component supply and long-term lifecycle support.
Supply support for APX810S00-46SR-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 where precision threshold, low quiescent current, and minimal external components are essential - particularly in battery-powered and harsh-environment systems.
FAQ
What is the exact reset threshold voltage and its tolerance for APX810S00-46SR-7?
The APX810S00-46SR-7 has a nominal reset threshold of 4.63 V, with a guaranteed range of 4.57 V to 4.69 V at +25°C. Over the full industrial temperature range (−40°C to +125°C), the threshold drift is limited to ±0.03 V due to a 30 ppm/°C temperature coefficient - verified per DS39140 Rev. 2–2 electrical characteristics table.
Does APX810S00-46SR-7 require an external pull-up resistor on the RESET pin?
No. APX810S00-46SR-7 features a push-pull output stage capable of sourcing 500 µA and sinking 1.2 mA, enabling direct connection to µP RESET inputs without external components. This eliminates pull-up resistor placement errors, reduces board area, and improves noise immunity compared to open-drain alternatives.
Can APX810S00-46SR-7 operate reliably during battery brown-out conditions?
Yes. The device guarantees correct reset logic state down to VCC = 1.0 V, allowing it to assert RESET during deep battery discharge (e.g., Li-ion falling below 3.0 V). Its 7 µA typical supply current extends operational life in always-on monitoring circuits, and the 240 ms timeout ensures µP reset completion before volatile memory loss.
Is APX810S00-46SR-7 compatible with lead-free reflow soldering processes?
Yes. APX810S00-46SR-7 uses a fully RoHS 3-compliant, halogen-free SOT23-3 package rated for standard Pb-free reflow profiles (JEDEC J-STD-020D). Peak temperature tolerance is 260°C for 30 seconds, and the molding compound contains no Br, Sb, or intentionally added Pb - confirmed in Diodes Incorporated's green materials documentation.
APX810S00-46SR-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:
- 1ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
APX810S00-46SR-7 FAQ
1.How can I place an order for APX810S00-46SR-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for APX810S00-46SR-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 APX810S00-46SR-7 reliable?
The price and inventory of APX810S00-46SR-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for APX810S00-46SR-7 is usually 5 days.
3.What payment methods are accepted for APX810S00-46SR-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for APX810S00-46SR-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for APX810S00-46SR-7?
APX810S00-46SR-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your APX810S00-46SR-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 APX810S00-46SR-7?
For technical support, including APX810S00-46SR-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your APX810S00-46SR-7 requirements.
6.How does Aetrix verify that APX810S00-46SR-7 is sourced from the original manufacturer or authorized distributors?
All APX810S00-46SR-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 APX810S00-46SR-7 meets industry standards.
7.What is the process for return or replacement of APX810S00-46SR-7?
All APX810S00-46SR-7 units undergo pre-shipment inspection (PSI). If there is an issue with APX810S00-46SR-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 APX810S00-46SR-7 part is unused and in its original packaging.
Return procedure for APX810S00-46SR-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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