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Diodes Incorporated APX803L05-16SA-7
- Part No.:
- APX803L05-16SA-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
APX803L05-16SA-7.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:6,918
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Product details
Overview
APX803L05-16SA-7 from Diodes Incorporated is a micro-power voltage detector IC designed for µP supervisory circuits, monitoring VCC supply levels in embedded and battery-powered systems. It features a fixed 1.6V detection threshold (±1.5% accuracy), 1µA typical supply current, 55ms reset timeout, open-drain active-low RESET output, and operates from -40°C to +85°C ambient temperature - enabling reliable power-up sequencing in portable instrumentation.
For engineers reviewing the APX803L05-16SA-7 datasheet, APX803L05-16SA-7 pinout, APX803L05-16SA-7 application, or APX803L05-16SA-7 equivalent, key selection criteria include threshold voltage tolerance, reset delay timing stability over temperature, low quiescent current impact on battery life, and SOT23 package compatibility with high-density PCB layouts.
Technical Context
The APX803L05-16SA-7 implements a precision bandgap-based voltage reference with internal hysteresis (0.01×VTH) to prevent oscillation during threshold crossing. Its comparator drives an open-drain NMOS output stage that sinks up to 20mA, requiring an external pull-up for logic-level compatibility.
Reset assertion occurs within 20µs of VCC falling below 1.6V, and release requires VCC to exceed 1.6V + hysteresis before the output returns high-impedance. The 55ms timeout is factory-programmed and stable across -40°C to +85°C, with <±50ppm/°C threshold drift.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Detection Threshold | 1.6V ±1.5% - ensures consistent µP reset initiation across process/voltage/temperature variations |
| Supply Current | 1.0µA typical - minimizes battery drain in always-on monitoring applications |
| Reset Timeout | 55ms - provides sufficient hold time for processor initialization without excessive system delay |
| Response Time | 20µs - guarantees fast fault detection during brown-out events |
| Output Type | Open-drain active-low - supports wired-OR reset bus architectures and flexible voltage-level translation |
| Operating Temp | -40°C to +85°C - validated for industrial and extended-temperature embedded deployments |
| VCC Range | 0.9V to 5.5V - enables use with 1.2V–3.3V logic supplies and legacy 5V systems |
Pinout & Package
APX803L05-16SA-7 is housed in a 3-pin SOT23 package (JEDEC MO-178AA), with 1.3mm × 2.9mm footprint and 1.1mm height. Pin 1 = GND, Pin 2 = RESET (open-drain), Pin 3 = VCC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Reference ground for internal comparator and voltage reference; must be low-impedance connection to system ground plane |
| 2 | RESET | Open-drain active-low output; requires external pull-up resistor (typically 10kΩ) to host VCC or logic rail |
| 3 | VCC | Power input for internal circuitry; bypass capacitor (100nF ceramic) required between VCC and GND per datasheet layout guidance |
Key Features
| Feature | Design Value |
|---|---|
| Threshold Accuracy | ±1.5% at +25°C - reduces need for system-level calibration and improves reset repeatability |
| Temperature Drift | 50ppm/°C - maintains tight threshold control across full operating range without external compensation |
| No External Components | Self-contained detection circuit - eliminates BOM cost and board space for RC timing networks |
| Lead-Free Compliance | Fully RoHS 3 (2015/863/EU) and halogen-free - meets global environmental compliance requirements for industrial shipments |
Applications
| Portable Medical Sensors | Industrial PLC I/O Modules |
|---|---|
Use Scenario: Continuous glucose monitor with coin-cell battery and ultra-low-power MCU. IC Role / Device Role / Timing Role: Voltage supervisor ensuring clean reset during battery voltage sag below 1.6V. Use Value: 1µA supply current extends battery life beyond 2 years; 55ms reset hold prevents spurious wakeups during transient dips. | Use Scenario: DIN-rail mounted digital input module powered from 24VDC supply with local 3.3V LDO. IC Role / Device Role / Timing Role: Monitors 3.3V rail integrity and asserts reset if LDO fails or load causes undervoltage. Use Value: ±1.5% threshold accuracy eliminates false resets under varying load conditions; SOT23 footprint fits constrained PCB real estate. |
| Smart Meter Communication Units | Automotive Body Control Modules |
Use Scenario: NB-IoT cellular modem in electricity meter, operating intermittently on lithium-thionyl chloride battery. IC Role / Device Role / Timing Role: Detects main supply collapse during power outage and triggers safe shutdown sequence via µP interrupt. Use Value: 20µs response time captures rapid transients; open-drain output interfaces directly to µP's NMI pin without level-shifting. | Use Scenario: Low-voltage subsystem in BCM managing door locks, lighting, and window controls. IC Role / Device Role / Timing Role: Supervises 5V auxiliary rail derived from vehicle battery; asserts reset if alternator failure drops voltage below 1.6V. Use Value: -40°C to +85°C rating supports under-hood thermal environments; 55ms timeout aligns with automotive cold-cranking recovery timing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV803EA16DPWR | 1.6V threshold, 35ms timeout, 0.5µA supply current, SOT23-3 package | Shorter reset timeout; tighter ±0.5% threshold accuracy but narrower VCC range (1.2V–6V) | Select when faster reset release and lower current are critical, and system timing budget allows sub-55ms hold. |
| MAX809SEUR+T | 1.6V threshold, 240ms timeout, 12µA supply current, SOT23-3 package | Higher quiescent current; longer timeout; wider operating temp (-40°C to +125°C) | Choose for automotive under-hood use where extended temperature range outweighs current penalty. |
Compared with TLV803EA16DPWR and MAX809SEUR+T, the APX803L05-16SA-7 delivers optimal balance of ultra-low current (1µA), industry-standard 55ms reset hold, and robust ±1.5% threshold accuracy - making it ideal for cost-sensitive, battery-constrained industrial and portable designs where timing and power are co-optimized.
Availability
APX803L05-16SA-7 is available at Aetrix Electronics and suitable for portable medical sensors, industrial PLC I/O modules, and smart meter communication units requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for APX803L05-16SA-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 for industrial, computing, consumer, and automotive markets.
The APX803L series belongs to Diodes' micro-power supervisor product line, engineered specifically for energy-constrained applications where precise, low-current voltage monitoring and deterministic reset behavior are essential.
FAQ
What is the exact reset threshold voltage for APX803L05-16SA-7?
The APX803L05-16SA-7 has a factory-trimmed detection threshold of 1.60V with ±1.5% accuracy over temperature (–40°C to +85°C). This value is fixed internally and does not require external configuration or trimming components.
Can APX803L05-16SA-7 drive a standard CMOS input directly?
No - its open-drain RESET output requires an external pull-up resistor to a valid logic rail (e.g., 1.8V, 3.3V, or 5V). Without pull-up, the output remains high-impedance; with pull-up, it delivers a clean active-low signal compatible with most µP reset inputs.
Is there a version of this device with adjustable threshold voltage?
No - the APX803L series uses factory-programmed, fixed thresholds ranging from 1.2V to 5.0V in 0.1V steps. For adjustable supervision, Diodes offers the APX811 series, which supports external resistor-divider programming of threshold and delay.
Does APX803L05-16SA-7 meet AEC-Q200 for automotive use?
No - APX803L05-16SA-7 is rated for industrial temperature range (–40°C to +85°C) and is not qualified to AEC-Q200. For automotive-grade equivalents, Diodes offers the APX803L-A series (e.g., APX803L05-16SA-7A), which undergoes PPAP and is manufactured in IATF 16949-certified facilities.
APX803L05-16SA-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:
- 1.6V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 35ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
APX803L05-16SA-7 FAQ
1.How can I place an order for APX803L05-16SA-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for APX803L05-16SA-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 APX803L05-16SA-7 reliable?
The price and inventory of APX803L05-16SA-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for APX803L05-16SA-7 is usually 5 days.
3.What payment methods are accepted for APX803L05-16SA-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for APX803L05-16SA-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for APX803L05-16SA-7?
APX803L05-16SA-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your APX803L05-16SA-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 APX803L05-16SA-7?
For technical support, including APX803L05-16SA-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your APX803L05-16SA-7 requirements.
6.How does Aetrix verify that APX803L05-16SA-7 is sourced from the original manufacturer or authorized distributors?
All APX803L05-16SA-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 APX803L05-16SA-7 meets industry standards.
7.What is the process for return or replacement of APX803L05-16SA-7?
All APX803L05-16SA-7 units undergo pre-shipment inspection (PSI). If there is an issue with APX803L05-16SA-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 APX803L05-16SA-7 part is unused and in its original packaging.
Return procedure for APX803L05-16SA-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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