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The APX803L is brand new micro-power voltage detector series Diodes Inc. develops 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, 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 phone, battery-powered devices, Internet of Things and so on.


  • Low Supply Current
  • High Threshold Voltage Accuracy: ±1.5%
  • Built-in Recovery Delay Time Options: 0ms, 55ms, 220ms and 450ms
  • No External Components Required


  • TV
  • Computer

Product Specifications

Product Parameters

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

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Product Change Notices (PCNs)

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-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
PCN-2348 2018-07-19 2018-10-19 Additional Qualified Assembly/Test (A/T) Site for Select Devices


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