My Inquiry
My Account
Diodes Incorporated APX803L05-30SA-7
- Part No.:
- APX803L05-30SA-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
APX803L05-30SA-7.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:14,888
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
APX803L05-30SA-7 from Diodes Incorporated is a micro-power voltage detector IC designed for µP supervisory circuits, providing precise 3.0V threshold detection with ±1.5% accuracy, 1µA typical supply current, and 220ms reset timeout. It delivers active-low open-drain reset signaling in battery-powered IoT sensors, portable medical devices, and low-power microcontroller systems.
For engineers reviewing the APX803L05-30SA-7 datasheet, APX803L05-30SA-7 pinout, APX803L05-30SA-7 application, or APX803L05-30SA-7 equivalent, this device supports critical power-monitoring decisions where ultra-low quiescent current, tight threshold tolerance, and configurable reset delay are mandatory for system reliability.
Technical Context
The APX803L05-30SA-7 integrates a precision bandgap reference and comparator to monitor VCC against a factory-trimmed 3.0V threshold, with built-in hysteresis (0.01×VTH) preventing oscillation during brownout recovery. Its internal timing circuit generates a fixed 220ms reset pulse after VCC drops below threshold.
It operates across -40°C to +85°C ambient, maintains 1.0µA typical ICC over temperature and supply voltage (0.9–5.5V), and drives reset loads via an open-drain output rated for 20mA sink current and 0.4V VOL at 3.5mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 3.0V ±1.5% - ensures reliable µP reset initiation at precisely defined supply rail collapse point |
| Supply Current | 1.0µA typical - enables multi-year operation in coin-cell–powered devices without measurable battery drain |
| Reset Timeout | 220ms (typ.) - guarantees sufficient hold time for full µP initialization and peripheral stabilization |
| Output Type | Open-drain, active-low - allows wired-OR reset bus configuration and flexible pull-up voltage selection |
| Response Time | 20µs max - detects rapid VCC dips before system state corruption occurs |
| Operating Voltage | 0.9V to 5.5V - supports direct monitoring of 1.2V–3.3V logic rails and legacy 5V systems |
| Threshold Hysteresis | 0.01×VTH (30mV) - prevents chatter during slow-rising VCC recovery by enforcing clean release margin |
Pinout & Package
SOT23-3 package (JEDEC MO-178AA), 1.3mm × 2.9mm footprint, 1.45mm height, lead-free and RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - GND | Ground reference | Return path for internal bias and output sink current; must be low-impedance connection to system ground plane |
| 2 - RESET | Open-drain reset output | Active-low signal asserted when VCC < 3.0V; requires external pull-up to logic rail (e.g., VCC or IOVDD) |
| 3 - VCC | Power supply input | Monitored voltage source; powers internal circuitry and defines detection domain; decoupling capacitor (100nF) required |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low ICC | 1.0µA typical - eliminates need for shutdown sequencing in always-on edge nodes |
| Fixed 3.0V threshold | Factory-trimmed, no external resistors needed - reduces BOM count and layout area vs. adjustable supervisors |
| 220ms reset delay | Internally generated, temperature-stable - removes timing capacitor variability and PCB space |
| Open-drain output | Compatible with 1.2V–5.5V I/O domains - enables reset coordination across mixed-voltage SoC subsystems |
| High accuracy | ±1.5% threshold tolerance - meets stringent reset window requirements for ARM Cortex-M and RISC-V MCUs |
Applications
| Wearable Health Monitor | Smart Sensor Node |
|---|---|
Use Scenario: Continuous ECG/PPG sensing powered by CR2032 battery with BLE transmission every 5 seconds. IC Role / Device Role / Timing Role: Monitors 3.0V LDO output supplying MCU and analog front-end; asserts reset if battery sags below 3.0V during BLE burst. Use Value: Prevents firmware crash and data corruption during low-battery operation while extending usable battery life by minimizing supervision overhead. |
Use Scenario: LoRaWAN environmental sensor logging temperature/humidity and transmitting hourly. IC Role / Device Role / Timing Role: Supervises 3.3V system rail derived from buck-boost converter; holds MCU in reset until stable post-wake-up. Use Value: Ensures deterministic boot sequence after deep-sleep wake-up, eliminating spurious resets caused by slow-rising supply transients. |
| Industrial PLC I/O Module | Portable Diagnostic Tool |
Use Scenario: DIN-rail mounted module with isolated 24V-to-3.3V conversion powering FPGA and ADC interface. IC Role / Device Role / Timing Role: Detects undervoltage on 3.3V digital rail; provides 220ms reset pulse to synchronize FPGA configuration and ADC calibration. Use Value: Guarantees safe startup under varying input voltage conditions and prevents metastability in clock-domain crossings. |
Use Scenario: Handheld ultrasound probe with rechargeable Li-ion battery and high-speed ADC acquisition chain. IC Role / Device Role / Timing Role: Monitors 3.0V analog supply feeding RF front-end and ADC reference; triggers hard reset on brownout. Use Value: Avoids corrupted image frames and false diagnostics by ensuring analog signal chain only operates within valid supply range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV803EA30DBZR | 3.0V threshold, 350ms reset delay, 0.5µA ICC, SOT23-3 | Longer timeout better suited for complex FPGA boot; lower ICC advantageous for sub-µA sleep modes | Select when extended reset hold time or ultra-deep sleep current is prioritized over fast response |
| MAX809SEUR+T | 3.0V threshold, 140ms reset delay, 12µA ICC, SOT23-3 | Higher supply current limits battery life; shorter delay may be insufficient for multi-stage boot | Choose only if legacy compatibility or cost sensitivity outweighs power and timing performance requirements |
Compared with TLV803EA30DBZR and MAX809SEUR+T, the APX803L05-30SA-7 uniquely balances 220ms timing, 1µA ICC, and ±1.5% accuracy-making it optimal for mid-complexity µP systems requiring both longevity and deterministic reset behavior.
Availability
APX803L05-30SA-7 is available at Aetrix Electronics and suitable for wearable health monitors, smart sensor nodes, industrial PLC I/O modules, and portable diagnostic tools requiring stable component supply and long-term production continuity.
Supply support for APX803L05-30SA-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., serving industrial, computing, consumer, and automotive markets.
The APX803L series belongs to Diodes' precision power-supervision product line, engineered specifically for ultra-low-power, high-accuracy reset generation in battery-constrained and thermally demanding embedded systems.
FAQ
What is the exact reset threshold voltage for APX803L05-30SA-7?
The APX803L05-30SA-7 has a factory-set nominal reset threshold of 3.0V with guaranteed accuracy of ±1.5% over temperature (-40°C to +85°C). This corresponds to a minimum threshold of 2.955V and maximum of 3.045V at +25°C, confirmed in Electrical Characteristics Table 1 of DS38171 Rev. 3-2.
Does APX803L05-30SA-7 require an external pull-up resistor on the RESET pin?
Yes - the RESET pin is open-drain and active-low, so an external pull-up resistor to the target logic rail (e.g., 1.8V, 3.3V, or 5V) is mandatory. Typical values range from 10kΩ to 100kΩ depending on bus capacitance and rise-time requirements, as shown in the Typical Applications Circuit on page 2 of the datasheet.
Can APX803L05-30SA-7 operate from a 1.2V supply?
No - the minimum operating supply voltage is 0.9V, but the 3.0V threshold detection function requires VCC ≥ 3.0V to remain valid. At VCC < 3.0V, the device asserts RESET and cannot monitor above-threshold conditions; operation below 0.9V risks undefined behavior per Absolute Maximum Ratings.
Is APX803L05-30SA-7 qualified for automotive applications?
No - APX803L05-30SA-7 is not AEC-Q100 qualified. Diodes offers automotive-grade variants (e.g., APX803L05-30SA-7Q) with PPAP capability and IATF 16949 manufacturing, but this standard part is intended for industrial, computing, and consumer applications per the datasheet's "For automotive applications…" footnote.
APX803L05-30SA-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:
- 3V
- 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
APX803L05-30SA-7 FAQ
1.How can I place an order for APX803L05-30SA-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for APX803L05-30SA-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 APX803L05-30SA-7 reliable?
The price and inventory of APX803L05-30SA-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for APX803L05-30SA-7 is usually 5 days.
3.What payment methods are accepted for APX803L05-30SA-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for APX803L05-30SA-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for APX803L05-30SA-7?
APX803L05-30SA-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your APX803L05-30SA-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 APX803L05-30SA-7?
For technical support, including APX803L05-30SA-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your APX803L05-30SA-7 requirements.
6.How does Aetrix verify that APX803L05-30SA-7 is sourced from the original manufacturer or authorized distributors?
All APX803L05-30SA-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 APX803L05-30SA-7 meets industry standards.
7.What is the process for return or replacement of APX803L05-30SA-7?
All APX803L05-30SA-7 units undergo pre-shipment inspection (PSI). If there is an issue with APX803L05-30SA-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 APX803L05-30SA-7 part is unused and in its original packaging.
Return procedure for APX803L05-30SA-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
APX803L05-30SA-7 Tags
-
MIC826SYMT-TR
Microchip Technology
-
APX803S-31SA-7
Diodes Incorporated
-
APX803L20-29SA-7
Diodes Incorporated
-
TPS3828-33DBVR
Texas Instruments
-
V6340RSP3B+
EM Microelectronic
-
EM6325CXSP5B-2.9+
EM Microelectronic
-
MCP120T-300I/TT
Microchip Technology
-
MCP130T-315I/TT
Microchip Technology
-
MCP120T-475I/TT
Microchip Technology
-
MCP111T-300E/TT
Microchip Technology
-
MCP120T-315I/TT
Microchip Technology
-
MCP809T-315I/TT
Microchip Technology
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
