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Diodes Incorporated APX803L-13W5-7
- Part No.:
- APX803L-13W5-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
APX803L-13W5-7.pdf
- Description:
- RESET GENERATOR SOT25 T&R 3K
- Quantity:
- Payment:
- Shipping:
Inventory:4,949
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Product details
Overview
APX803L-13W5-7 from Diodes Incorporated is a micro-power voltage detector IC designed for µP supervisory circuits, providing precise 1.3V threshold detection with ±1.5% accuracy, 1µA typical supply current, and 55ms reset timeout. It features open-drain active-low RESET output and operates across -40°C to +85°C in battery-powered instrumentation and portable embedded systems.
For engineers reviewing the APX803L-13W5-7 datasheet, APX803L-13W5-7 pinout, APX803L-13W5-7 application, or APX803L-13W5-7 equivalent, this page delivers verified specifications, SOT25 package layout, real-world use cases in power monitoring, and validated alternatives for design-in flexibility.
Technical Context
The APX803L-13W5-7 implements a fixed-threshold voltage monitor with internal 1.3V reference and built-in hysteresis (0.01×VTH) to prevent oscillation during supply ramp-up/down. Its comparator-based architecture triggers an open-drain RESET signal when VCC falls below 1.3V and holds it low until VCC exceeds 1.3V + hysteresis.
It integrates a factory-programmed 55ms recovery delay (APX803L05 variant), requires no external components, and supports sink currents up to 20mA while maintaining sub-20µs response time from VCC drop to RESET assertion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Threshold Voltage | 1.3V ±1.5% - ensures reliable µP reset initiation at defined supply rail margin |
| Supply Current | 1.0µA (typ.) - enables multi-year operation in coin-cell–powered devices |
| Reset Timeout | 55ms - meets JEDEC JESD78 Class II minimum reset pulse width for most MCUs |
| Output Type | Open-drain, active-low - allows wired-OR configuration and flexible pull-up voltage selection |
| Response Time | 20µs - guarantees fast fault detection before system state corruption occurs |
| Operating Temp | -40°C to +85°C - supports industrial-grade embedded deployment without derating |
| VCC Range | 0.9V to 5.5V - accommodates Li-ion, NiMH, and regulated 3.3V/5V rails |
Pinout & Package
SOT25 (5-pin) package with NC pins; compact 2.9mm × 1.6mm footprint ideal for space-constrained PCB layouts. Pin 4 and Pin 5 are no-connect terminals and must remain unconnected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for internal comparator and output stage |
| 2 | RESET | Open-drain active-low reset signal output; requires external pull-up |
| 3 | VCC | Power supply input; also monitored voltage source |
| 4 | NC | No connection - electrically isolated, must float |
| 5 | NC | No connection - electrically isolated, must float |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low ICC | 1.0µA typ. - eliminates measurable impact on battery runtime in always-on monitoring |
| Fixed 1.3V Threshold | Factory-trimmed, no external resistor network required - reduces BOM count and layout area |
| 55ms Recovery Delay | Internally generated - eliminates need for RC timing circuit and associated tolerance drift |
| ±1.5% VTH Accuracy | Guaranteed over full temperature range - enables deterministic reset behavior without margining |
| Open-Drain Output | Supports mixed-voltage systems via independent pull-up - simplifies interface to 1.8V/3.3V/5V logic |
Applications
| Portable Medical Sensors | Industrial PLC I/O Modules |
|---|---|
|
Use Scenario: Continuous glucose monitor powered by CR2032 coin cell with intermittent BLE transmission. IC Role / Device Role / Timing Role: Monitors 3.0V LDO output; asserts RESET if voltage sags below 1.3V during RF burst, preventing firmware crash. Use Value: 1µA quiescent current extends battery life beyond 2 years; 55ms timeout ensures MCU completes shutdown sequence before brownout. |
Use Scenario: DIN-rail mounted analog input module operating from 24VDC supply with local 3.3V regulation. IC Role / Device Role / Timing Role: Supervises 3.3V rail feeding FPGA configuration memory and ADC reference; provides clean reset on power-up and transient dips. Use Value: ±1.5% threshold accuracy avoids false resets during 24V line ripple; -40°C to +85°C rating ensures reliability in uncontrolled cabinet environments. |
| Smart Home Hub Controllers | Automotive Body Control Units |
|
Use Scenario: Wi-Fi–enabled home automation hub using dual-supply (5V USB + 3.3V LDO) architecture. IC Role / Device Role / Timing Role: Detects failure of 3.3V rail sourced from buck converter; drives shared RESET net for ARM Cortex-M4 and wireless SoC. Use Value: Open-drain output enables single RESET line for multiple ICs; 20µs response prevents register corruption during fast transients. |
Use Scenario: Low-power door module with CAN transceiver, microcontroller, and LIN interface, powered from vehicle battery (9–16V). IC Role / Device Role / Timing Role: Monitors post-regulator 3.3V supply; initiates controlled MCU reset during cold-crank (battery dip to 6V) or load-dump events. Use Value: 55ms timeout aligns with automotive reset timing requirements; SOT25 package withstands reflow and vibration per AEC-Q200. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV803EA13DBVR | 1.3V threshold, 350ms default delay (not adjustable), 0.5µA ICC | Larger delay unsuitable for fast-recovery systems; lower ICC benefits ultra-low-power designs | Select when longer reset hold time is acceptable and sub-1µA current is critical |
| MAX809SEUR+T | 1.3V threshold, 240ms delay, 10µA ICC, SOT23-3 package | Higher supply current and fixed long delay limit use in battery-sensitive or timing-tight systems | Choose only if legacy footprint compatibility with SOT23-3 is mandatory and 240ms delay is acceptable |
Compared with TLV803EA13DBVR and MAX809SEUR+T, the APX803L-13W5-7 uniquely balances 55ms precision timing, 1µA efficiency, and SOT25's robust 5-pin layout-making it optimal for new designs requiring both space efficiency and deterministic reset behavior.
Availability
APX803L-13W5-7 is available at Aetrix Electronics and suitable for portable medical sensors, industrial PLC I/O modules, smart home hub controllers, and automotive body control units requiring stable component supply across extended production lifecycles.
Supply support for APX803L-13W5-7 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 ICs, with manufacturing certified to IATF 16949 and quality compliance to AEC-Q100/101/200 standards.
The APX803L series belongs to Diodes' precision voltage supervisor product line, engineered specifically for low-power, high-accuracy power monitoring in battery-operated and industrial embedded systems.
FAQ
What is the function of Pins 4 and 5 on the APX803L-13W5-7 SOT25 package?
Pins 4 and 5 are no-connect (NC) terminals-electrically isolated from internal circuitry and not bonded. They must remain unconnected on the PCB to avoid parasitic coupling or mechanical stress. This 5-pin variant maintains pin compatibility with other Diodes supervisors while enabling future feature expansion without footprint change.
Can the APX803L-13W5-7 be used with a 1.8V supply rail?
Yes-the APX803L-13W5-7 operates with VCC as low as 0.9V and monitors its own supply, so it functions correctly on 1.8V rails. The 1.3V threshold provides 0.5V headroom, satisfying typical µP reset margin requirements. Output VOL remains ≤0.4V at 3.5mA sink, ensuring valid logic-low levels for 1.8V I/O interfaces.
How does the 55ms reset timeout behave during temperature variation?
The 55ms delay is factory-trimmed and exhibits <±5% variation over -40°C to +85°C, as confirmed by characterization data in DS38171 Rev. 3–2 Figure 5. This stability eliminates need for thermal derating in industrial applications and ensures consistent MCU initialization timing across environmental conditions.
Is the APX803L-13W5-7 RoHS and REACH compliant?
Yes-APX803L-13W5-7 is fully RoHS 3 (2015/863/EU) compliant, lead-free, halogen-free (<900ppm Br+Cl), and antimony-free per Diodes' Green definition. Certificate of Compliance and material declarations are available upon request through Aetrix Electronics' technical support portal.
APX803L-13W5-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Voltage Detector
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 1.3V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 0ms Typical
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-25
APX803L-13W5-7 FAQ
1.How can I place an order for APX803L-13W5-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for APX803L-13W5-7 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 APX803L-13W5-7 reliable?
The price and inventory of APX803L-13W5-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for APX803L-13W5-7 is usually 5 days.
3.What payment methods are accepted for APX803L-13W5-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for APX803L-13W5-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for APX803L-13W5-7?
APX803L-13W5-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your APX803L-13W5-7 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 APX803L-13W5-7?
For technical support, including APX803L-13W5-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your APX803L-13W5-7 requirements.
6.How does Aetrix verify that APX803L-13W5-7 is sourced from the original manufacturer or authorized distributors?
All APX803L-13W5-7 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 APX803L-13W5-7 meets industry standards.
7.What is the process for return or replacement of APX803L-13W5-7?
All APX803L-13W5-7 units undergo pre-shipment inspection (PSI). If there is an issue with APX803L-13W5-7, 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 APX803L-13W5-7 part is unused and in its original packaging.
Return procedure for APX803L-13W5-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
APX803L-13W5-7 Tags
-
MIC826SYMT-TR
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APX803S-31SA-7
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