DS1832S

Power Supply Management Circuit, Fixed, 1 Channel, +2.55/2.88VV, CMOS, PDSO8, 0.150 INCH, SOIC-8
5,331 有效庫存

DS1832S

有效庫存5,331

Power Supply Management Circuit, Fixed, 1 Channel, +2.55/2.88VV, CMOS, PDSO8, 0.150 INCH, SOIC-8

  • 製造商零件號 # : DS1832S

  • 包裝/封裝: SOIC 8

  • 製造商: MAXIM

  • 產品分類 : Supervisors

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DS1832S 數據表
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詳細說明

The DS1832 3.3-Volt MicroMonitor monitors three vital conditions for a microprocessor: power supply, software execution, and external override. First, a precision temperature-compensated reference and comparator circuit monitor the status of VCC. When an out-of-tolerance condition occurs, an internal power-fail signal is generated which forces the resets to an active state. When VCC returns to an in-tolerance condition, the reset signals are kept in the active state for a minimum of 250 ms to allow the power supply and processor to stabilize.FEATURES■ Halts and restarts an out-of-control microprocessor■ Holds microprocessor in check during power transients■ Automatically restarts microprocessor after power failure■ Monitors pushbutton for external override■ Accurate 10% or 20% microprocessor power monitoring■ Eliminates need for discrete components■ 20% tolerance for use with 3.0-volt systems■ Pin-compatible with the DS1232■ Low cost 8-pin DIP, 8-pin SOIC, and space saving µ-SOP packages available■ Industrial temperature range of -40°C to +85°C

主要特徵

  • Halts and restarts an out-of-control microprocessor
  • Holds microprocessor in check during power transients
  • Automatically restarts microprocessor after power failure
  • Monitors pushbutton for external override
  • Accurate 10% or 20% microprocessor power monitoring
  • Eliminates need for discrete components
  • 20% tolerance for use with 3.0-volt systems
  • Pin-compatible with the DS1232
  • Low cost 8-pin DIP, 8-pin SOIC, and space
  • saving µ-SOP packages available
  • Industrial temperature range of -40°C to +85°C

規格

以下是所選零件的基本參數，涉及零件的特性及其所屬類別。

Pbfree Code No Rohs Code No
Part Life Cycle Code Obsolete Part Package Code SOIC
Pin Count ! 8 Reach Compliance Code not_compliant
ECCN Code EAR99 HTS Code ! 8542.39.00.01
Additional Feature ! WATCHDOG TIMER Adjustable Threshold NO
Analog IC - Other Type POWER SUPPLY MANAGEMENT CIRCUIT JESD-30 Code R-PDSO-G8
JESD-609 Code e0 Length 4.9 mm
Moisture Sensitivity Level 1 Number of Channels 1
Number of Functions 1 Number of Terminals 8
Operating Temperature-Max 85 °C Operating Temperature-Min -40 °C
Package Body Material PLASTIC/EPOXY Package Code SOP
Package Equivalence Code SOP8,.25 Package Shape RECTANGULAR
Package Style SMALL OUTLINE Peak Reflow Temperature (Cel) 245
Power Supplies ! 1.2/5.5 V Qualification Status ! Not Qualified
Seated Height-Max 1.75 mm Supply Current-Max (Isup) 0.035 mA
Supply Voltage-Max (Vsup) 5.5 V Supply Voltage-Min (Vsup) 1.2 V
Supply Voltage-Nom (Vsup) 3.3 V Surface Mount ! YES
Technology CMOS Temperature Grade ! INDUSTRIAL
Terminal Finish TIN LEAD Terminal Form ! GULL WING
Terminal Pitch ! 1.27 mm Terminal Position DUAL
Threshold Voltage-Nom +2.55/2.88V Width 3.9 mm

數據表 PDF

數據表記錄了器件的特性、絕對最大額定值、應用等，這對於作為器件特定應用的整體指南大有裨益。

初步規格 DS1832S PDF 下載

常見問題解答

What is DS1832S?

The DS1832S is a microprocessor supervisory circuit designed by Maxim Integrated. It provides a low-cost solution for monitoring power supply voltage levels and microprocessor activity in various applications, including embedded systems, consumer electronics, and industrial control.

How Does DS1832S Work?

The DS1832S works by monitoring the power supply voltage and microprocessor activity to ensure proper system operation. It features a watchdog timer that resets the microprocessor if it fails to periodically toggle the input (ST) pin. Additionally, it monitors the power supply voltage and generates a reset signal if the voltage falls below a predefined threshold.

How Many Pins does DS1832S have and What are the Functions of the Pinout Configuration?

The DS1832S is housed in an 8-pin SOIC (Small Outline Integrated Circuit) package. The pinout configuration includes:

  • VCC: Power supply input pin.
  • GND: Ground pin.
  • ST: Microprocessor status input pin for the watchdog timer.
  • MR: Manual reset input pin.
  • OUT: Open-drain active-low reset output.

What are the Pros and Cons of DS1832S?

Pros:

  • Supervisory Functions: Monitors power supply voltage and microprocessor activity for enhanced system reliability.
  • Watchdog Timer: Helps prevent system lock-up by resetting the microprocessor if it fails to operate properly.
  • Low Cost: Provides a cost-effective solution for system supervision and reset generation.
  • Compact Package: The 8-pin SOIC package offers space-efficient integration into various designs.

Cons:

  • External Circuitry: May require additional external components for specific system configurations.
  • Programming Considerations: Requires proper programming of the watchdog timer to suit application requirements.

Are There Any Equivalents/Alternatives to DS1832S for Recommendation?

  • The MAX813L from Maxim Integrated is a similar microprocessor supervisory circuit with additional features.
  • Alternatives to the DS1832S include the TPS3808G01 from Texas Instruments and the ADM1232 from Analog Devices.

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