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Diodes Incorporated APX810S-23SR-7
- Part No.:
- APX810S-23SR-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
APX810S-23SR-7.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:1,846
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Product details
Overview
APX810S-23SR-7 from Diodes Incorporated is a micro-power voltage detector IC designed for µP supervisory functions in digital systems. It provides active-high reset assertion when VCC drops below 2.25V (±0.03V), maintains reset for ≥240ms after VCC recovery, operates down to 1V supply, and draws only 7µA typical supply current. Used in portable battery-powered equipment requiring reliable power-on reset.
For engineers reviewing the APX810S-23SR-7 datasheet, APX810S-23SR-7 pinout, APX810S-23SR-7 application, or APX810S-23SR-7 equivalent, key selection criteria include reset threshold accuracy (2.25V), guaranteed operation at VCC = 1V, push-pull output drive capability, SOT23-SR package compatibility, and temperature-stable reset timeout (240ms typ).
Technical Context
The APX810S-23SR-7 implements a precision bandgap-based voltage comparator with hysteresis-free threshold detection and internal timing circuitry to generate a fixed-duration active-high reset pulse. Its reset logic remains valid across the full operating range of VCC = 1.0V to 5.5V.
It features a push-pull output stage capable of sourcing ≥500µA at 0.8×VCC and sinking ≥1.2mA at ≤0.3V, with reset delay time tightly specified at 140–280ms over -40°C to +125°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.25V ±0.03V - precise detection for 2.5V system rails with margin |
| Reset Timeout | 240ms typical - ensures full µP initialization before release |
| Supply Current | 7µA typical - enables multi-year battery life in always-on monitoring |
| Minimum VCC | 1.0V - guarantees reset validity during brown-out and deep discharge |
| Output Type | Push-pull active-high - eliminates external pull-up, drives TTL/CMOS directly |
| Temp Range | -40°C to +125°C - supports industrial and automotive under-hood environments |
| Threshold Drift | 30ppm/°C - maintains accuracy across wide temperature excursions |
Pinout & Package
SOT23-SR (3-pin) surface-mount package with standard footprint per Diodes Inc. outline drawing: 2.4mm × 1.3mm × 1.0mm body, 0.95mm pitch, gull-wing leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for internal comparator and output stage |
| 2 | RESET | Active-high push-pull reset output - drives high when VCC ≥ 2.25V |
| 3 | VCC | Power input - supplies internal circuitry and defines reset threshold reference |
Key Features
| Feature | Design Value |
|---|---|
| Precision 2.25V threshold | Enables reliable supervision of 2.5V logic rails with 10% headroom margin |
| 240ms reset timeout | Meets JEDEC JESD8-12B requirement for µP power-on stabilization |
| 1V minimum VCC operation | Ensures deterministic reset behavior during battery sag or cold-start conditions |
| 7µA supply current | Reduces quiescent load on coin-cell or energy-harvesting sources by >95% vs. legacy supervisors |
| SOT23-SR green package | RoHS 3 / halogen-free / lead-free - meets IPC-1752A Class 1 material compliance |
Applications
| Battery-Powered IoT Sensor Node | Industrial PLC I/O Module |
|---|---|
Use Scenario: Remote environmental sensor node powered by CR2032 coin cell, waking every 5 minutes to sample and transmit data. IC Role / Device Role / Timing Role: Voltage detector asserts RESET until stable 2.5V rail is established post-wake, preventing firmware crash during low-VCC startup. Use Value: 7µA quiescent current extends battery life beyond 5 years; 1V operation ensures reset remains valid even at end-of-life cell voltage (~2.0V open-circuit, ~1.2V under load). | Use Scenario: DIN-rail mounted programmable logic controller with isolated 24V-to-2.5V DC-DC powering its ARM Cortex-M7 core. IC Role / Device Role / Timing Role: Monitors the 2.5V core rail and holds µP in reset during input transients or DC-DC startup delay. Use Value: 240ms timeout exceeds typical DC-DC soft-start duration; ±0.03V threshold tolerance prevents false resets during line regulation ripple. |
| Medical Handheld Diagnostic Device | Automotive Body Control Module (BCM) |
Use Scenario: Portable ultrasound probe with lithium-polymer battery and dual-rail (3.3V/1.8V) power architecture. IC Role / Device Role / Timing Role: Supervises the 2.5V analog front-end bias rail and triggers system-wide reset if voltage sags below specification during RF burst transmission. Use Value: Push-pull output drives FPGA configuration logic directly without pull-up resistor; 30ppm/°C drift maintains accuracy across clinical operating range (0°C–40°C). | Use Scenario: Under-dash BCM subjected to engine compartment thermal cycling (-40°C to +105°C) and load-dump transients. IC Role / Device Role / Timing Role: Detects undervoltage on the 2.5V microcontroller supply derived from vehicle battery via LDO, asserting RESET during cranking events. Use Value: Guaranteed operation at VCC = 1V prevents spurious reset during 6V cranking dips; -40°C to +125°C rating matches AEC-Q100 Grade 2 requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS3808G125DBVR | 2.5V threshold, 200ms timeout, 1.6µA IQ, open-drain output | Requires external pull-up; lower IQ but no push-pull drive | Select when ultra-low power dominates and system already uses pull-up resistors |
| MAX809SEUR+T | 2.5V threshold, 240ms timeout, 12µA IQ, push-pull active-low output | Active-low reset polarity; higher supply current than APX810S | Select when legacy board design requires active-low reset signal |
Compared with TPS3808G125DBVR and MAX809SEUR+T, the APX810S-23SR-7 uniquely combines active-high push-pull output, 2.25V threshold, sub-10µA IQ, and 1V operational floor-making it optimal for new designs targeting compact 2.5V systems with minimal BOM count and robust brown-out immunity.
Availability
APX810S-23SR-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 across extended temperature ranges and long production lifecycles.
Supply support for APX810S-23SR-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, serving industrial, computing, communications, and consumer markets with high-reliability components.
The APX809S/810S series belongs to Diodes' µP supervisory product line, engineered specifically for cost-sensitive, space-constrained applications requiring precision voltage monitoring and guaranteed reset timing without external components.
FAQ
What is the exact reset threshold voltage for APX810S-23SR-7?
The APX810S-23SR-7 has a nominal reset threshold of 2.25V, with a guaranteed range of 2.22V to 2.29V at +25°C. This value is factory-trimmed and specified over -40°C to +125°C with a temperature coefficient of 30ppm/°C, ensuring stability across industrial operating conditions.
Does APX810S-23SR-7 require an external capacitor for reset timing?
No. The APX810S-23SR-7 integrates all timing circuitry internally and delivers a fixed reset timeout of 140–280ms (240ms typical) after VCC rises above the threshold. No external capacitor or resistor is needed-reducing BOM count and PCB area versus RC-based solutions.
Can APX810S-23SR-7 drive a 10kΩ pull-up load directly?
Yes. Its push-pull output can source up to 500µA at 0.8×VCC and sink up to 3.2mA at ≤0.4V, fully compatible with standard CMOS/TTL inputs. Driving a 10kΩ load to 2.5V requires only 250µA-well within its 500µA sourcing capability at VCC ≥ 2.5V.
Is APX810S-23SR-7 qualified for automotive applications?
While not AEC-Q100 certified, the APX810S-23SR-7 operates across -40°C to +125°C, supports 1V minimum VCC, and withstands 6V absolute maximum supply-meeting key electrical and thermal requirements for non-safety-critical automotive subsystems like body control modules and infotainment peripherals.
APX810S-23SR-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:
- 2.25V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active High
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
APX810S-23SR-7 FAQ
1.How can I place an order for APX810S-23SR-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for APX810S-23SR-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 APX810S-23SR-7 reliable?
The price and inventory of APX810S-23SR-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for APX810S-23SR-7 is usually 5 days.
3.What payment methods are accepted for APX810S-23SR-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for APX810S-23SR-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for APX810S-23SR-7?
APX810S-23SR-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your APX810S-23SR-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 APX810S-23SR-7?
For technical support, including APX810S-23SR-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your APX810S-23SR-7 requirements.
6.How does Aetrix verify that APX810S-23SR-7 is sourced from the original manufacturer or authorized distributors?
All APX810S-23SR-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 APX810S-23SR-7 meets industry standards.
7.What is the process for return or replacement of APX810S-23SR-7?
All APX810S-23SR-7 units undergo pre-shipment inspection (PSI). If there is an issue with APX810S-23SR-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 APX810S-23SR-7 part is unused and in its original packaging.
Return procedure for APX810S-23SR-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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