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TS556CDT - STMicroelectronics

Description: Low-power dual CMOS timer

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TS556CDT Details

  • Manufacturer Part Number:

    TS556CDT

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOIC

  • Package Description:

    MICRO, PLASTIC, SO-14

  • Pin Count:

    14

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    0

  • Additional Feature:

    IT CAN ALSO OPERATE FROM A 2V, 5V AND 12V NOMINAL SUPPLY

  • Analog IC - Other Type:

    PULSE; RECTANGULAR

  • JESD-30 Code:

    R-PDSO-G14

  • JESD-609 Code:

    e4

  • Length:

    8.65 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    2

  • Number of Terminals:

    14

  • Operating Temperature-Max:

    70 °C

  • Output Frequency-Max:

    2 MHz

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP14,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.75 mm

  • Supply Voltage-Max (Vsup):

    16 V

  • Supply Voltage-Min (Vsup):

    2 V

  • Supply Voltage-Nom (Vsup):

    3 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Temperature Grade:

    COMMERCIAL

  • Terminal Finish:

    NICKEL PALLADIUM GOLD

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

  • Time@Peak Reflow Temperature-Max (s):

    40

  • Width:

    3.9 mm

TS556CDT Frequently Asked Questions (FAQs)

  • STMicroelectronics provides a recommended layout and routing guide in their application note AN2352, which includes guidelines for PCB design, component placement, and routing to ensure optimal performance and minimize noise.
  • The output capacitor selection depends on the output voltage, output current, and desired ripple voltage. A general rule of thumb is to choose a capacitor with a capacitance value between 10uF to 47uF, and a voltage rating at least 1.5 times the output voltage. Additionally, consider the ESR (Equivalent Series Resistance) and ESL (Equivalent Series Inductance) of the capacitor to ensure it can handle the output current and switching frequency.
  • Although the datasheet specifies a maximum input voltage of 15V, it's recommended to derate the input voltage to 12V to ensure reliable operation and prevent damage to the device. Exceeding the maximum input voltage can lead to reduced performance, increased power consumption, and potentially damage the device.
  • OVP can be implemented using an external voltage supervisor IC, such as the STMicroelectronics STM6627, which monitors the output voltage and triggers a reset signal to the TS556CDT if the output voltage exceeds a predetermined threshold. Alternatively, a simple voltage divider and comparator circuit can be used to detect overvoltage conditions and shut down the device.
  • The thermal derating curve for the TS556CDT is not explicitly provided in the datasheet. However, STMicroelectronics provides a thermal derating curve for similar devices in their application note AN1153, which can be used as a guideline. The curve shows the maximum power dissipation vs. ambient temperature, allowing designers to determine the maximum power dissipation at a given temperature.

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TS556CDT Overview

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About STMicroelectronics

STMicroelectronics (ST) is a global semiconductor company that designs, manufactures, and markets a broad range of integrated circuits (ICs), discrete devices, and other electronic components. STMicroelectronics offers a diverse portfolio of semiconductor products covering a wide range of applications and industries. Their product categories include microcontrollers, analog and mixed-signal ICs, MEMS (Micro-Electro-Mechanical Systems) sensors, power management ICs, RF (Radio Frequency) transceivers, aut

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