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Diodes Incorporated APX810S05-26SR-7
- Part No.:
- APX810S05-26SR-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
APX810S05-26SR-7.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:4,628
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Product details
Overview
APX810S05-26SR-7 from Diodes Incorporated is a micro-power voltage detector IC designed for supervisory reset control in microprocessor and digital systems. It provides active-high push-pull RESET output with 2.63 V threshold, 50 ms typical reset timeout, 7 µA supply current, and guaranteed operation down to VCC = 1.0 V - used in battery-powered controllers and portable instrumentation.
For engineers reviewing the APX810S05-26SR-7 datasheet, APX810S05-26SR-7 pinout, APX810S05-26SR-7 application, or APX810S05-26SR-7 equivalent, key selection criteria include reset threshold accuracy (±0.04 V), temperature coefficient (30 ppm/°C), low-voltage validity (1.0 V), push-pull drive capability (1.2 mA sink), and SOT23-SR package compatibility.
Technical Context
The APX810S05-26SR-7 integrates a precision bandgap reference and comparator to monitor VCC against a fixed 2.63 V threshold. Its internal timing circuit generates a minimum 50 ms active-high RESET pulse after VCC rises above threshold, with delay stability maintained across −40°C to +125°C ambient range.
Designed for single-supply systems, it features push-pull output stage eliminating external pull-up resistors, and includes transient immunity on VCC input. The device asserts RESET when VCC drops below threshold and holds it valid until VCC exceeds threshold by ≥20 mV and remains stable for tDELAY.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.63 V (typical); ensures reliable detection of 2.6 V supply brownout in 2.5 V–3.3 V systems |
| Reset Timeout | 50 ms (typical); guarantees sufficient processor initialization time before release |
| Supply Current | 7 µA (typical); enables multi-year battery life in always-on monitoring applications |
| Operating Voltage Range | 1.0 V to 5.5 V; supports valid reset assertion even during deep brownout or startup |
| Output Type | Push-pull active-high; drives logic inputs directly without external pull-up resistor |
| Temp Coefficient | 30 ppm/°C; maintains ±0.04 V threshold drift over full −40°C to +125°C range |
| VOH/VOL | VOH ≥ 0.8×VCC @ 500 µA source; VOL ≤ 0.3 V @ 1.2 mA sink - ensures TTL/CMOS compatibility |
Pinout & Package
SOT23-SR (3-pin) surface-mount package with standard footprint per Diodes Inc. outline drawing: 2.4 mm × 1.3 mm × 1.0 mm body, 0.95 mm pitch, gull-wing leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for internal comparator and output stage; must be connected to system ground plane |
| 2 | RESET | Active-high push-pull output; drives high to VCC or low to GND - no external pull-up required |
| 3 | VCC | Power supply input; powers internal circuitry and defines reset threshold reference point |
Key Features
| Feature | Design Value |
|---|---|
| Precision 2.63 V threshold | ±0.04 V tolerance at 25°C; eliminates need for external trimming in 2.5 V/3.3 V rail monitoring |
| 50 ms reset timeout | Guaranteed minimum duration ensures full microcontroller boot sequence completion |
| 7 µA quiescent current | Enables use in energy-harvesting and coin-cell-powered devices with >10-year shelf life |
| Valid reset down to 1.0 V | Prevents spurious release during ultra-low-voltage brownout recovery |
| Push-pull active-high output | Direct interface to MCU reset pins without pull-up resistor or level-shifter |
Applications
| Battery-Powered Data Logger | Industrial PLC I/O Module |
|---|---|
Use Scenario: Continuous environmental sensing with periodic wake-up and transmission using coin-cell power. IC Role / Device Role / Timing Role: Voltage supervisor asserting active-high RESET to hold microcontroller in reset until stable 3.3 V rail is established post-wake. Use Value: 7 µA supply current extends battery life; 1.0 V validity prevents premature release during weak-battery brownout. | Use Scenario: Modular I/O card requiring deterministic reset behavior after 24 V DC-DC converter startup. IC Role / Device Role / Timing Role: Monitors local 3.3 V logic rail and delivers 50 ms active-high RESET pulse to FPGA configuration logic. Use Value: Push-pull output drives FPGA reset pin directly; 30 ppm/°C drift ensures timing consistency across industrial temperature range. |
| Medical Handheld Diagnostic Tool | Smart Energy Meter |
Use Scenario: Portable device powered by Li-ion battery with dynamic voltage scaling between 3.6 V (full) and 2.8 V (low). IC Role / Device Role / Timing Role: Detects crossing below 2.63 V threshold and asserts RESET to prevent corrupted memory writes during undervoltage. Use Value: 2.63 V threshold aligns with safe operating margin for 2.5 V logic; fast 20 µs response to VCC drop avoids data loss. | Use Scenario: Revenue-grade meter with isolated MCU and real-time clock, requiring fail-safe reset on AC-DC converter ripple. IC Role / Device Role / Timing Role: Supervises 3.3 V auxiliary rail derived from flyback converter; filters line transients via built-in noise immunity. Use Value: Comparator ignores <20 µs VCC glitches; guaranteed reset validity to 1.0 V covers worst-case hold-up capacitor sag. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV803EB26DBVR | 2.63 V threshold, 200 ms reset timeout, open-drain output | Requires external pull-up; longer timeout may delay system boot | Select if longer reset hold time is needed and board space allows pull-up resistor |
| MAX809SEUR+T | 2.63 V threshold, 240 ms reset timeout, push-pull active-low output | Inverted logic polarity requires MCU pin reassignment or inverter gate | Select only if active-low reset is already implemented in target design |
Compared with TLV803EB26DBVR and MAX809SEUR+T, the APX810S05-26SR-7 offers optimal balance of short 50 ms timeout, active-high push-pull output, and ultra-low 7 µA current - ideal for fast-boot, battery-constrained systems where pin count and BOM simplicity are critical.
Availability
APX810S05-26SR-7 is available at Aetrix Electronics and suitable for battery-powered instrumentation, industrial PLC modules, medical handheld diagnostics, and smart energy meters requiring stable component supply and long-term lifecycle support.
Supply support for APX810S05-26SR-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, computing, and consumer markets.
The APX809S/810S series belongs to Diodes' microprocessor supervisory product line, engineered specifically for low-power, precision voltage monitoring in space-constrained and battery-sensitive applications.
FAQ
What is the exact reset threshold voltage for APX810S05-26SR-7?
The APX810S05-26SR-7 has a nominal reset threshold of 2.63 V at +25°C, with guaranteed min/max values of 2.59 V and 2.67 V across temperature and process variation. This value is factory-trimmed and specified in the Electrical Characteristics table of DS39140 Rev. 2–2.
Does APX810S05-26SR-7 require an external pull-up resistor?
No. The APX810S05-26SR-7 features a push-pull output stage capable of actively driving high to VCC or low to GND. Unlike open-drain supervisors, it requires no external pull-up resistor - reducing BOM count and PCB area in compact designs.
Can APX810S05-26SR-7 operate reliably below 2.0 V supply?
Yes. The device guarantees correct RESET logic state and functional operation down to VCC = 1.0 V, as confirmed in the Recommended Operating Conditions table. This enables robust brownout detection during deep discharge or slow power-rail collapse scenarios.
What is the meaning of "05" in the part number APX810S05-26SR-7?
The "05" denotes the reset timeout variant: 50 ms typical active-reset duration. This distinguishes it from "00" (1.7 ms), "240" (240 ms), and other timing options in the APX810S family - enabling precise alignment with microcontroller boot requirements.
APX810S05-26SR-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:
- 2.63V
- 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
APX810S05-26SR-7 FAQ
1.How can I place an order for APX810S05-26SR-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for APX810S05-26SR-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 APX810S05-26SR-7 reliable?
The price and inventory of APX810S05-26SR-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for APX810S05-26SR-7 is usually 5 days.
3.What payment methods are accepted for APX810S05-26SR-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for APX810S05-26SR-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for APX810S05-26SR-7?
APX810S05-26SR-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your APX810S05-26SR-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 APX810S05-26SR-7?
For technical support, including APX810S05-26SR-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your APX810S05-26SR-7 requirements.
6.How does Aetrix verify that APX810S05-26SR-7 is sourced from the original manufacturer or authorized distributors?
All APX810S05-26SR-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 APX810S05-26SR-7 meets industry standards.
7.What is the process for return or replacement of APX810S05-26SR-7?
All APX810S05-26SR-7 units undergo pre-shipment inspection (PSI). If there is an issue with APX810S05-26SR-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 APX810S05-26SR-7 part is unused and in its original packaging.
Return procedure for APX810S05-26SR-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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