Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details. SC59
Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details. SOT23
Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details. SOT25
MICRO POWER VOLTAGE DETECTOR
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The APX803L is brand new micro-power voltage detector series developed by Diodes Incorporated with target to be used for microprocessor (µP) supervisory circuits to monitor the power supplies in µP and digital systems. It provides wide range of detection voltage level ranging from 1.2V to 5.0V with 0.1V per step options fixed internally from circuit design. As to supply current, the APX803L series requires low supply current level of 1µA (typical) which gives no burden to power efficiency on systems requiring detection functions, such as smart phones, battery-powered devices, Internet equipment and so on.
These circuits perform the supervisory function by sending out a reset signal whenever it founds the monitored VCC level falls below a chosen threshold voltage level and the reset signal will remain until VCC recovers to a level higher than threshold voltage. The APX803L has an open-drain output with an active-low output pin and features several delay time options (0ms, 55ms, 220ms and 450ms) for system need.
The APX803L is available in two pinout variants of the 3-pin SOT23, SOT323, SC59 and SOT25 packages.
Fixed Detect Voltages (V) |
1.2 to 5 V |
|---|---|
Adjustable Detect Voltage Reference Voltage (V) |
0.1 V |
Number of Channels |
N/A |
Minimum Operating Voltage (V) |
0.9 V |
Maximum Input Voltage (V) |
5.5 V |
Quiescent Current (µA) |
1 µA |
Typical Time Delay (µs) |
0, 55, 220, 450 µs |
Reset Period (ms) |
N/A ms |
RESET Output (Active High) |
No (Active High) |
RESET Output (Active Low) |
Yes (Active Low) |
Manual RESET |
No |
Watchdog |
No |
Watchdog Time (s) |
None s |
Power Fail Comparator Threshold (V) |
N/A V |
Reset Output Topology |
Open-Drain |
Ambient Temperature Range (°C) |
-40 to 85 °C |
Additional Technical Documents are available upon request:
Application information, Evaluation board, and Other technical documents
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A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.
| PCN # | Issue Date | Implementation Date | Subject |
|---|---|---|---|
| PCN-2770 | 2025-10-30 | 2025-10-30 | Add Fab Site Code, Country of Diffusion (COD) and Assembly Site Origin (ASO) on Product and Shipping Labels for all Diodes Products |
| PCN-2759 | 2025-09-17 | 2026-03-17 | Product End of Life (EOL) |
| PCN-2721 | 2025-01-28 | 2025-04-28 | Additional FAB Source JKFAB, AT Sites CAT, WXHG, Bill of Materials (BOM) and Die Revision. |
| PCN-2575 | 2022-04-05 | 2022-07-05 | Qualified Additional Bill of Material (BOM) - Lead Frame Raw Material (C19400 FH) |
| PCN-2512 | 2021-04-16 | 2021-07-16 | Qualified Additional Assembly & Test (A/T) Site |
