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Diodes Incorporated APX803L20-14W5-7
- Part No.:
- APX803L20-14W5-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
APX803L20-14W5-7.pdf
- Description:
- Reset Generator SOT25 T&R 3K
- Quantity:
- Payment:
- Shipping:
Inventory:3,027
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Product details
Overview
APX803L20-14W5-7 from Diodes Incorporated is a micro-power voltage detector IC designed for µP supervisory circuits, providing precise 2.0V threshold detection (±1.5% accuracy), 220ms reset timeout, open-drain active-low RESET output, and ultra-low 1µA typical supply current. It monitors VCC in battery-powered embedded systems and portable electronics where power efficiency and reliable power-on reset are critical.
For engineers reviewing the APX803L20-14W5-7 datasheet, APX803L20-14W5-7 pinout, APX803L20-14W5-7 application, or APX803L20-14W5-7 equivalent, key selection factors include its fixed 2.0V detection level, SOT25 package compatibility, 220ms recovery delay timing, and open-drain output drive capability up to 20mA sink current.
Technical Context
The APX803L20-14W5-7 implements a precision bandgap-based voltage reference with internal hysteresis (0.01×VTH) to prevent oscillation during threshold crossing. Its reset assertion occurs within 20µs when VCC drops below 2.0V, and release requires VCC to exceed 2.01V (typical hysteresis = 20mV).
It operates across –40°C to +85°C ambient temperature, supports supply voltages from 0.9V to 5.5V, and maintains threshold stability with a temperature coefficient of 50ppm/°C - enabling robust performance in thermally varying environments without external calibration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Detection Threshold | 2.0V ±1.5% - fixed internal reference ensures consistent reset activation point across production lots and temperature. |
| Reset Timeout Delay | 220ms (typ.) - guarantees sufficient hold time for microprocessor initialization before release. |
| Supply Current | 1.0µA (typ.), 2.5µA (max) - enables multi-year operation in coin-cell–powered IoT sensors. |
| Output Type | Open-drain, active-low - allows wired-OR configuration and interface flexibility with 3.3V/5V logic domains. |
| Response Time | 20µs (max) - ensures rapid fault detection during brown-out events. |
| Operating Voltage Range | 0.9V to 5.5V - supports direct connection to Li-ion, LiPo, and 3.3V/5V system rails without external regulators. |
| Temperature Coefficient | 50ppm/°C - limits threshold drift to ±0.85% over –40°C to +85°C, preserving reset margin. |
Pinout & Package
SOT25 (5-pin) package with 1.6mm × 2.9mm footprint and 0.95mm height; lead-free, RoHS-compliant, halogen-free "Green" construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC | Positive supply input - powers internal reference and comparator; must be decoupled with ≥100nF capacitor. |
| 2 | RESET | Open-drain active-low reset output - requires external pull-up resistor (typically 10kΩ) to host logic rail. |
| 3 | GND | Analog ground reference - must be connected directly to system ground plane for noise immunity. |
| 4, 5 | NC | No connection - electrically isolated; no routing or soldering required. |
Key Features
| Feature | Design Value |
|---|---|
| Fixed 2.0V threshold | Eliminates external resistor network, reducing BOM count and layout area in space-constrained designs. |
| 220ms factory-programmed delay | Matches typical µP boot sequence timing - avoids need for external RC timing components or firmware delays. |
| 1µA typical supply current | Extends battery life in always-on monitoring applications such as smart meters and wearables. |
| ±1.5% threshold accuracy | Guarantees reset assertion at ≥1.97V, preserving safe operating margin for 2.0V nominal supplies. |
| Open-drain output with 20mA sink capability | Drives multiple loads (e.g., µP RESET, FPGA CONF_DONE, EEPROM write-enable) without level-shifting circuitry. |
Applications
| Smartphone Power Sequencing | Industrial PLC I/O Module |
|---|---|
|
Use Scenario: Monitors main PMIC output during cold start and brown-out conditions in dual-battery smartphone platforms. IC Role / Device Role / Timing Role: Voltage detector providing hardware-initiated reset signal to application processor and baseband SoC. Use Value: Ensures deterministic boot state after power interruption, preventing corrupted firmware execution due to marginal VDD. |
Use Scenario: Supervises 3.3V logic rail powering digital I/O isolators and CAN transceivers in DIN-rail mounted controllers. IC Role / Device Role / Timing Role: Standalone reset supervisor asserting active-low RESET until stable 3.3V is confirmed for 220ms. Use Value: Prevents spurious I/O toggling during power ramp-up, eliminating false sensor readings or actuator misfires. |
| Portable Medical Glucometer | Automotive Body Control Module (BCM) |
|
Use Scenario: Validates coin-cell–supplied 2.0V reference for ADC and LCD driver in handheld diagnostic devices. IC Role / Device Role / Timing Role: Low-current voltage monitor triggering MCU reset if battery voltage falls below safe operating level. Use Value: Enables accurate glucose measurement by ensuring analog front-end biasing remains within spec before sampling. |
Use Scenario: Supervises 5V domain powering LIN transceivers and LED drivers in non-safety-critical BCM subassemblies. IC Role / Device Role / Timing Role: Reset generator with 220ms timeout aligned to vehicle battery stabilization post-ignition. Use Value: Avoids communication faults on LIN bus during engine cranking by holding peripherals in reset until supply settles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage detector applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| APX803L20-29SA | SOT23-3 package (3.0mm × 1.4mm), same 2.0V threshold and 220ms delay, but 1.6mm shorter body and different thermal resistance (θJA = 200°C/W vs. 200°C/W for SOT25). | Preferred for ultra-dense PCB layouts where height <1.1mm is required; lacks NC pins, limiting mechanical anchoring. | Select when board space is constrained and thermal dissipation requirements match SOT23's lower pad area. |
| TLV803EA20DBZR | Texas Instruments part with 2.0V threshold, 200ms delay (vs. 220ms), 0.8µA supply current, and identical SOT23-3 footprint. | Offers tighter 0.5% initial accuracy but no SOT25 variant; not qualified to AEC-Q100. | Choose for higher-accuracy reset in consumer-grade applications where TI supply chain preference applies. |
Compared with APX803L20-14W5-7, the APX803L20-29SA reduces footprint area by 42% but sacrifices mechanical robustness, while TLV803EA20DBZR improves accuracy and quiescent current at the cost of automotive qualification and package flexibility.
Availability
APX803L20-14W5-7 is available at Aetrix Electronics and suitable for portable medical devices, industrial PLCs, automotive body control modules, and battery-powered IoT edge nodes requiring stable component supply with guaranteed long-term continuity.
Supply support for APX803L20-14W5-7 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 semiconductor company specializing in discrete, analog, and mixed-signal solutions, with design centers across Asia, Europe, and the U.S., and manufacturing in ISO/TS 16949-certified facilities.
The APX803L series targets ultra-low-power supervisory functions in portable, battery-operated, and energy-sensitive embedded systems - emphasizing minimal current draw, high threshold accuracy, and factory-configured timing without external components.
FAQ
What is the exact reset timeout duration for APX803L20-14W5-7?
The APX803L20-14W5-7 provides a factory-trimmed reset active timeout period of 220ms (typical), with guaranteed minimum 143ms and maximum 297ms across –40°C to +85°C ambient temperature, as specified in the Electrical Characteristics table of DS38171 Rev. 3-2.
Can APX803L20-14W5-7 operate from a 1.8V supply?
Yes - the device supports supply voltages from 0.9V to 5.5V per Recommended Operating Conditions. At 1.8V, it reliably detects VCC falling below 2.0V (i.e., asserts reset when supply drops into undervoltage condition), though VCC must remain ≥0.9V for functional operation.
Is an external pull-up resistor required on the RESET pin?
Yes - the RESET pin is open-drain and active-low. A pull-up resistor (typically 4.7kΩ to 10kΩ) to the host logic rail (e.g., 3.3V or 5V) is mandatory to establish a valid high-level logic state when the output is inactive.
Does APX803L20-14W5-7 meet automotive qualification standards?
No - this specific variant is not AEC-Q100 qualified. Diodes Incorporated offers automotive-grade versions under separate part numbering (e.g., APX803L20-XXSR-A for AEC-Q100 Grade 2), but APX803L20-14W5-7 is intended for industrial and commercial applications only.
APX803L20-14W5-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- -
- Type:
- Voltage Detector
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 1.4V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 143ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-25
APX803L20-14W5-7 FAQ
1.How can I place an order for APX803L20-14W5-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for APX803L20-14W5-7 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 APX803L20-14W5-7 reliable?
The price and inventory of APX803L20-14W5-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for APX803L20-14W5-7 is usually 5 days.
3.What payment methods are accepted for APX803L20-14W5-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for APX803L20-14W5-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for APX803L20-14W5-7?
APX803L20-14W5-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your APX803L20-14W5-7 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 APX803L20-14W5-7?
For technical support, including APX803L20-14W5-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your APX803L20-14W5-7 requirements.
6.How does Aetrix verify that APX803L20-14W5-7 is sourced from the original manufacturer or authorized distributors?
All APX803L20-14W5-7 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 APX803L20-14W5-7 meets industry standards.
7.What is the process for return or replacement of APX803L20-14W5-7?
All APX803L20-14W5-7 units undergo pre-shipment inspection (PSI). If there is an issue with APX803L20-14W5-7, 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 APX803L20-14W5-7 part is unused and in its original packaging.
Return procedure for APX803L20-14W5-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
APX803L20-14W5-7 Tags
-
MIC826SYMT-TR
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APX803S-31SA-7
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