ADM6328 Ultralow Power, 3-Lead, SOT-23, Microprocessor Reset Circuit, Active-Low Open-Drain Output, 0.5 µA Supply Current

The ADM6326/ADM6328/ADM6346/ADM6348 are ultralow power microprocessor supervisory circuits suited to monitoring the power supplies in microprocessor and telecommunications applications. Ultralow supply currents make these parts ideal for use in low power, portable equipment. Applications Telecommunications Microprocessor systems Desktop and notebook computers Portable equipment

These devices provide a reset output during power-up, powerdown, and brownout conditions. On power-up, an internal timer holds RESET asserted for at least 100 ms. This holds the microprocessor in a reset state until conditions have stabilized.

The ADM6326 and ADM6346 have an active low push-pull reset output. The ADM6328 and ADM6348 have an active low open drain reset output, which requires an external pull-up resistor. The reset output remains operational with VCC as low as 1 V. The reset comparator features built-in glitch immunity, making the devices immune to fast transients on VCC.

There are 24 reset threshold voltage options available, in increments between 2.2 V and 4.63 V, making these devices suitable for monitoring a variety of supply voltages (see the Ordering Guide section). These devices are available in a 3-lead SOT-23 package and operate over the extended temperature range of −40°C to +85°C.

Features and Benefits
  • Ultralow supply current of 1 μA maximum (ADM6326/ADM6328)
  • Accurate monitoring of 2.5 V, 3 V, 3.3 V, and 5 V rails
  • Reset thresholds of 2.2 V to 4.63 V
  • Glitch immunity from negative-going VCC transients
  • Power-on reset pulse width of 100 ms minimum
  • 2 reset output options
    Push-pull RESET (ADM6326/ADM6346)
    Open-drain RESET (ADM6328/ADM6348)
  • Power-on reset pulse width of 100 ms minimum
  • Operating temperature range of −40°C to +85°C
  • 3-lead SOT-23 package
Power Management
Reference Designs
Data Sheets
Documentnote
ADM6326/ADM6328/ADM6346/ADM6348: Ultralow Power, 3-Lead, SOT-23 Microprocessor Reset Circuits Data Sheet (Rev. A)PDF 282 kB
Order Information
Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
ADM6328-22ARTZ-R7 Production3 ld SOT-23REEL 3000-40 to 85C00.95Y
ADM6328-23ARTZ-R7 Production3 ld SOT-23REEL 3000-40 to 85C00.95Y
ADM6328-24ARTZ-R7 Last Time Buy3 ld SOT-23REEL 3000-40 to 85C00.95Y
ADM6328-25ARTZ-R7 Production3 ld SOT-23REEL 3000-40 to 85C00.95Y
ADM6328-26ARTZ-R7 Last Time Buy3 ld SOT-23REEL 3000-40 to 85C00.95Y
ADM6328-28ARTZ-R7 Production3 ld SOT-23REEL 3000-40 to 85C00.95Y
ADM6328-29ARTZ-R7 Last Time Buy3 ld SOT-23REEL 3000-40 to 85C00.95Y
ADM6328-30ARTZ-R7 Last Time Buy3 ld SOT-23REEL 3000-40 to 85C00.95Y
ADM6328-31ARTZ-R7 Last Time Buy3 ld SOT-23REEL 3000-40 to 85C00.95Y
Reference Materials
ADM6326/ADM6328/ADM6346/ADM6348: Ultralow Power, 3-Lead, SOT-23 Microprocessor Reset Circuits Data Sheet (Rev. A) adm6326
CN0276 设计和集成文件 adg1611
Supervisory Devices Complementary Parts Guide for Altera FPGAs adm690
Supervisory Devices Complementary Parts Guide for Xilinx FPGAs adm690
New SOT Supervisors [PPT, Dec 2010] adm6326
CN0276:高性能、10位至16位旋变数字转换器 adg1611