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Linear Technology LTC2909CDDB-3.3#TRPBF

Part Number:

LTC2909CDDB-3.3#TRPBF

Manufacturer:

Linear Technology

Ventron No:

3277670-LTC2909CDDB-3.3#TRPBF

Description:

IC MONITOR PREC 3.3V 8-DFN

ECAD Model:

Datasheet:

LTC2909CDDB-3.3#TRPBF

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Part Overview

Description
The LTC2909 is a dual input monitor designed for various system monitoring applications. It features polarity selection and a buffered reference output, allowing it to monitor positive and negative supplies for undervoltage (UV) and overvoltage (OV) conditions. The two inputs have a nominal 0.5V threshold with tight 1.5% threshold accuracy over the entire operating temperature range. Glitch filtering ensures reliable reset operation without false triggering. Additionally, a third fixed-threshold UVLO monitor on the part's Vcc (also 1.5% accuracy) is available for standard logic supplies. The common reset output has a timeout that can use a preset 200ms, be set by an external capacitor, or be disabled. A three-state input pin sets the input polarity of each adjustable input without requiring any external components.

Features
Two low voltage adjustable inputs (0.5V)
Pin selectable input polarity allows negative and OV monitoring
Guaranteed threshold accuracy: ±1.5%
6.5V shunt regulator for high voltage operation
Low 50µA quiescent current
Buffered 1V reference for negative supply offset
Input glitch rejection
Adjustable reset timeout period
Selectable internal timeout saves components
Open-drain RST output
Accurate UVLO for 2.5V, 3.3V, 5V systems
Ultralow voltage reset: Vcc = 0.5V guaranteed
Space saving 8-lead TSOT-23 and 3mm x 2mm DFN packages

Applications
Desktop and notebook computers
Handheld devices
Network servers
Core, I/O monitor
Automotive
Precision triple/dual input UV, OV, and negative voltage monitor

Specifications

Linear Technology LTC2909CDDB-3.3#TRPBF technical specifications, attributes, parameters and parts with similar specifications to Linear Technology LTC2909CDDB-3.3#TRPBF.

  • Lifecycle Status
    PRODUCTION (Last Updated: 1 week ago)
  • Factory Lead Time
    10 Weeks
  • Mounting Type

    Mounting Type refers to the method by which an electronic component is attached to a printed circuit board (PCB) or other surface. Common mounting types include: * Through-hole: Component leads are inserted into holes in the PCB and soldered on the other side. * Surface-mount: Component is placed on the surface of the PCB and soldered in place. * Press-fit: Component is pressed into place on the PCB without soldering. * Socket: Component is inserted into a socket on the PCB, allowing for easy replacement. The mounting type is determined by factors such as the component's size, shape, and power requirements.

    Surface Mount
  • Package / Case

    Package / Case refers to the physical housing or enclosure that encapsulates an electronic component. It provides protection, facilitates handling, and enables electrical connections. The package type determines the component's size, shape, pin configuration, and mounting options. Common package types include DIP (dual in-line package), SOIC (small outline integrated circuit), and BGA (ball grid array). The package also influences the component's thermal and electrical performance.

    8-WFDFN Exposed Pad
  • Surface Mount
    YES
  • Number of Pins

    Number of Pins: Indicates the number of electrical connections available on the component. These pins are used to connect the component to other components or circuits on a printed circuit board (PCB). The number of pins determines the functionality and connectivity options of the component. It is important to ensure that the component has the correct number of pins for the intended application.

    8
  • Operating Temperature

    Operating Temperature is the range of temperatures at which an electronic component can function properly. It is typically specified in degrees Celsius (°C) and indicates the minimum and maximum temperatures at which the component can operate without experiencing damage or degradation. Operating Temperature is an important parameter to consider when designing electronic circuits, as it ensures that the components will function reliably in the intended operating environment.

    0°C~70°C TA
  • Packaging
    Tape & Reel (TR)
  • JESD-609 Code
    e3
  • Part Status

    Part Status is an electronic component parameter that indicates the availability and production status of a component. It is typically used to inform customers about the availability of a component, whether it is in production, end-of-life, or obsolete. Part Status can also provide information about any restrictions or limitations on the component's use, such as whether it is only available for certain applications or if it has been discontinued.

    Active
  • Moisture Sensitivity Level (MSL)

    Moisture Sensitivity Level (MSL) is a measure of the susceptibility of a surface mount electronic component to moisture-induced damage during soldering. It is classified into six levels, from 1 (least sensitive) to 6 (most sensitive). MSL is determined by the materials used in the component's construction, including the solderability of its terminals and the presence of moisture-absorbing materials. Components with higher MSL ratings require more stringent handling and storage conditions to prevent moisture absorption and subsequent damage during soldering.

    1 (Unlimited)
  • Number of Terminations
    8
  • ECCN Code
    EAR99
  • Terminal Finish
    Matte Tin (Sn)
  • Subcategory
    Power Management Circuits
  • Technology

    Technology, in the context of electronic components, refers to the specific manufacturing process and materials used to create the component. It encompasses the semiconductor fabrication techniques, such as the type of transistor used (e.g., MOSFET, BJT), the gate oxide thickness, and the interconnect materials. Technology also includes the packaging type, such as surface mount or through-hole, and the leadframe or substrate material. The technology used impacts the component's performance characteristics, such as speed, power consumption, and reliability.

    CMOS
  • Terminal Position
    DUAL
  • Terminal Form
    NO LEAD
  • Peak Reflow Temperature (Cel)
    260
  • Number of Functions
    3
  • Supply Voltage

    Supply Voltage is the voltage required to power an electronic component. It is typically measured in volts (V) and is specified in the component's datasheet. The supply voltage must be within the specified range for the component to function properly. If the supply voltage is too low, the component may not function at all. If the supply voltage is too high, the component may be damaged.

    3.3V
  • Terminal Pitch
    0.5mm
  • Time@Peak Reflow Temperature-Max (s)
    30
  • Base Part Number
    LTC2909
  • Output
    Open Drain or Open Collector
  • Pin Count
    8
  • Qualification Status
    Not Qualified
  • Number of Channels

    Number of Channels refers to the number of independent signal paths within an electronic component. It indicates how many separate signals can be processed or transmitted simultaneously. For example, an audio amplifier with two channels can amplify two separate audio signals, while a multi-channel data converter can convert multiple analog signals into digital data. The number of channels is a crucial parameter for determining the component's functionality and application.

    2
  • Max Supply Voltage
    6V
  • Min Supply Voltage
    500mV
  • Adjustable Threshold
    YES
  • Reset

    Reset is an electronic component parameter that refers to the process of returning a device or system to its initial state. This can be done by applying a specific voltage or signal to the device, or by physically resetting the device. Resetting a device can be used to clear errors, restore default settings, or to start the device over from the beginning.

    Active Low
  • Voltage - Threshold
    2.921V Adj Adj
  • Number of Voltages Monitored
    3
  • Reset Timeout
    Adjustable/Selectable
  • Supply Current-Max (Isup)
    0.15mA
  • Width
    2mm
  • RoHS Status
    ROHS3 Compliant

Certification

  • ISO 9001
  • ISO 13485
  • ISO 45001
  • ASA
  • ESD
  • DUNS
  • SMTA
  • ROHS

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