Diodes Incorporated

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PT7M65xxNL# (Not Recommended for new design)

NRND = Not Recommended for New Design

Low power consumption with adjustable delay time supervisory Circuit

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The PT7M6518-6550 is a family of small, low-power, voltage-monitoring circuits with adjustable delay time capability. PT7M65xx series features a highly accurate under voltage detector with hysteresis and an externally programmable time delay generator. This combination of features prevents erratic system reset operation.
PT7M65xx series provide external capacitor to adjust for set up delay time.
All series operate from a 1.2V to 5.5V supply voltage and are fully specified over the -40°C to +85°C operating temperature range. This family is available in ultra-small 4-pin UDFN (1.6mm x 1.6mm) and SC70-4 and SOT23-5 packages.


  • Operate from VCC of 1.2V to 5.5V
  • Capacitor-Adjustable Delay

  • Active-High/-Low Output Options

  • Open-Drain /Push-Pull Output Options

  • Detect Voltage Threshold Accurate: 2.5% in full
    Temperature from -40°C to +85°C

  • Low Supply Current (2μA, Typ.)

  • Ultra-Small 4-Pin UDFN Package or SOT23-5
    Package or SC70-4 package

Product Specifications

Product Parameters

Adjustable Detect Voltage Reference Voltage (V) N/A
Ambient Temperature Range  (°C) -40 to 85
Fixed Detect Voltages (V) 1.8 to 2.5, 2.5 to 3.3, 3.3 to 5.5
Manual RESET No
Maximum Input Voltage (V) 5.5
Minimum Operating Voltage (V) 1.2
Number of Channels 1
Power Fail Comparator Threshold (V) None
Quiescent Current (µA) 2
RESET Output (Active High) No
RESET Output (Active Low) Yes
Reset Output Topology Open-Drain
Reset Period (ms) Adjustable
Typical Time Delay (µs) 50
Watchdog No
Watchdog Time (s) None

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