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Diodes Incorporated APX803L20-13W5-7
- Part No.:
- APX803L20-13W5-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
APX803L20-13W5-7.pdf
- Description:
- Reset Generator SOT25 T&R 3K
- Quantity:
- Payment:
- Shipping:
Inventory:4,335
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Product details
Overview
APX803L20-13W5-7 from Diodes Incorporated is a micro-power voltage detector IC designed for µP supervisory circuits, providing precise 2.0V threshold detection with ±1.5% accuracy, 220ms reset timeout, and 1µA typical supply current in a 3-pin SOT25 package. It delivers active-low open-drain reset signaling for power monitoring in battery-powered IoT sensors and portable medical devices.
For engineers reviewing the APX803L20-13W5-7 datasheet, APX803L20-13W5-7 pinout, APX803L20-13W5-7 application, or APX803L20-13W5-7 equivalent, this page details its fixed-threshold supervision capability, low-quiescent-current operation, temperature-stable reset timing, and compatibility with microprocessor reset input requirements across industrial and consumer embedded systems.
Technical Context
The APX803L20-13W5-7 integrates a precision bandgap reference and comparator to monitor VCC against a factory-trimmed 2.0V threshold. Its internal hysteresis (0.01 × VTH) prevents oscillation during slow-rising or noisy supply transitions.
It implements a fixed 220ms reset timeout (typ.) after VCC recovery, with guaranteed delay stability over −40°C to +85°C ambient. The open-drain RESET output supports wired-OR configuration and external pull-up flexibility up to 5.5V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.0V ±1.5% - Ensures reliable µP reset initiation at defined supply level without calibration. |
| Supply Current | 1.0µA (typ.), 2.5µA (max.) - Enables multi-year battery life in always-on sensing nodes. |
| Reset Timeout | 220ms (typ.), 143–297ms (min–max) - Meets JEDEC JESD78B reset duration requirements for ARM Cortex-M and RISC-V SoCs. |
| Output Type | Open-drain, active-low - Allows shared reset bus with multiple supervisors and logic-level translation via external pull-up. |
| Response Time | 20µs (VCC drop to RESET assertion) - Captures fast brown-out events before system state corruption. |
| Operating Voltage | 0.9V to 5.5V - Supports supervision of 1.2V, 1.8V, 2.5V, 3.3V, and 5.0V rails without external biasing. |
| Threshold Hysteresis | 0.01 × VTH (20mV) - Prevents chatter during marginal supply conditions near trip point. |
Pinout & Package
SOT25 (3-pin, 1.6mm × 2.9mm × 1.1mm) package with gull-wing leads, RoHS-compliant, halogen-free, and qualified per JEDEC MO-203AB.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Reference ground return path; must be connected directly to system power plane for noise immunity. |
| 2 | RESET | Open-drain active-low reset output; requires external pull-up resistor (typically 10kΩ) to host VCC or higher rail. |
| 3 | VCC | Power supply input; supplies internal reference and comparator; decoupling capacitor (100nF) required adjacent to pin. |
Key Features
| Feature | Design Value |
|---|---|
| Fixed 2.0V threshold | Factory-trimmed at wafer level; eliminates need for external resistive divider or trimming components. |
| 220ms reset timeout | Internally generated delay ensures sufficient hold time for µP initialization and PLL lock before release. |
| 1µA supply current | Reduces standby power burden by >95% versus legacy reset ICs, critical for coin-cell–powered wearables. |
| −40°C to +85°C operation | Validated performance across full industrial temperature range without derating or external compensation. |
| Open-drain output | Enables direct interface to 1.2V–5.5V logic families and supports multi-source reset arbitration. |
Applications
| Smart Wearable Sensor Node | Industrial PLC I/O Module |
|---|---|
Use Scenario: Continuous ECG monitoring using ultra-low-power MCU and analog front-end powered by CR2032 battery. IC Role / Device Role / Timing Role: Voltage supervisor asserting active-low RESET until 2.0V rail stabilizes post-power-on or brown-out recovery. Use Value: Guarantees clean MCU boot sequence and prevents firmware execution on insufficient supply, extending battery life by eliminating spurious wakeups. |
Use Scenario: DIN-rail mounted programmable logic controller with isolated 3.3V digital I/O supply. IC Role / Device Role / Timing Role: Monitors 3.3V domain and holds system in reset for 220ms after power restoration to ensure FPGA configuration integrity. Use Value: Eliminates need for discrete RC timing network while maintaining JEDEC-compliant reset pulse width under varying load and temperature. |
| Portable Point-of-Care Ultrasound | Automotive Cabin Controller |
Use Scenario: Handheld ultrasound device with Li-ion battery and dual-rail (1.8V/3.3V) power architecture. IC Role / Device Role / Timing Role: Supervises 3.3V main logic rail; asserts RESET if voltage dips below 2.0V during high-current transducer burst mode. Use Value: Fast 20µs response captures transient undervoltage events missed by slower supervisors, preventing data corruption in real-time image processing. |
Use Scenario: HVAC control module in vehicle cabin with 5V supply derived from body electronics network. IC Role / Device Role / Timing Role: Provides fail-safe reset signal to microcontroller when 5V rail drops due to alternator ripple or load dump transients. Use Value: ±1.5% threshold accuracy ensures consistent trip point across automotive temperature extremes, reducing field failure risk. |
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 | 2.0V threshold, 140ms timeout, 1.2µA supply current, SOT23-3 package | Lacks guaranteed 220ms timeout; shorter delay may not satisfy ARM-based MCU boot timing | Select when board space is constrained and 140ms reset hold meets target SoC requirements |
| TPS3808G12DBVR | 2.0V threshold, adjustable timeout (1ms–10s), 2.8µA supply current, SOT23-6 package | Requires external capacitor for timing; higher quiescent current reduces battery runtime | Select when programmable delay is needed and additional PCB area is available for timing cap |
Compared with MAX809SEUR+T and TPS3808G12DBVR, the APX803L20-13W5-7 offers tighter threshold accuracy, guaranteed 220ms timeout without external components, and lowest supply current-making it optimal for space-constrained, battery-sensitive designs requiring deterministic reset behavior.
Availability
APX803L20-13W5-7 is available at Aetrix Electronics and suitable for smart wearable sensor nodes, industrial PLC I/O modules, portable point-of-care ultrasound devices, and automotive cabin controllers requiring stable component supply with guaranteed long-term availability.
Supply support for APX803L20-13W5-7 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 solutions, with design centers in Asia, Europe, and the U.S., and manufacturing in ISO/TS 16949-certified facilities.
The APX803L series belongs to Diodes' precision power management portfolio, engineered specifically for ultra-low-power microprocessor supervision in battery-operated and energy-conscious embedded systems.
FAQ
What is the exact reset threshold voltage for APX803L20-13W5-7?
The APX803L20-13W5-7 has a factory-set reset threshold of 2.0V with ±1.5% accuracy over temperature (−40°C to +85°C). This value is trimmed during wafer test and does not require external adjustment or calibration in end equipment.
Can APX803L20-13W5-7 be used with a 1.8V supply rail?
Yes - the device operates from 0.9V to 5.5V and monitors VCC independently. When placed on a 1.8V rail, it asserts RESET if VCC falls below 2.0V; however, since 2.0V > 1.8V, it will remain continuously asserted unless VCC exceeds 2.0V. It is intended for rails ≥2.0V.
Does APX803L20-13W5-7 require an external pull-up resistor on the RESET pin?
Yes - the RESET pin is open-drain and active-low. A pull-up resistor (typically 4.7kΩ–10kΩ) to the host logic rail (e.g., 3.3V or 1.8V) is mandatory to establish valid logic-high state when not asserted.
Is the 220ms reset timeout affected by temperature or supply voltage?
No - the 220ms nominal timeout is internally generated and specified from 143ms (min) to 297ms (max) across −40°C to +85°C and 0.9V–5.5V VCC. Data sheet Figure 5 confirms <±10% variation over full operating range.
APX803L20-13W5-7 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:
- 1.3V
- 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
APX803L20-13W5-7 FAQ
1.How can I place an order for APX803L20-13W5-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for APX803L20-13W5-7 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 APX803L20-13W5-7 reliable?
The price and inventory of APX803L20-13W5-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for APX803L20-13W5-7 is usually 5 days.
3.What payment methods are accepted for APX803L20-13W5-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for APX803L20-13W5-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for APX803L20-13W5-7?
APX803L20-13W5-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your APX803L20-13W5-7 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 APX803L20-13W5-7?
For technical support, including APX803L20-13W5-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your APX803L20-13W5-7 requirements.
6.How does Aetrix verify that APX803L20-13W5-7 is sourced from the original manufacturer or authorized distributors?
All APX803L20-13W5-7 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 APX803L20-13W5-7 meets industry standards.
7.What is the process for return or replacement of APX803L20-13W5-7?
All APX803L20-13W5-7 units undergo pre-shipment inspection (PSI). If there is an issue with APX803L20-13W5-7, 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 APX803L20-13W5-7 part is unused and in its original packaging.
Return procedure for APX803L20-13W5-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
APX803L20-13W5-7 Tags
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MIC826SYMT-TR
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