Part Image

UC2909MDWREP - Texas Instruments

Description: Enhanced Product Switch-mode Lead-Acid Battery Charger with Differential Current Sense

Download UC2909MDWREP Model
Schematic
symbols
Schematic symbol is unavailable for download
PCB
footprints
PCB footprint is unavailable for download
3D
models
3D model is unavailable for download
PCB Footprints
UC2909MDWREP - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - DW
click to zoom
3D Models
UC2909MDWREP - Texas Instruments  - 3D model - Small Outline Packages - DW
click to zoom

UC2909MDWREP Details

  • Manufacturer Part Number:

    UC2909MDWREP

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOIC

  • Pin Count:

    20

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Analog IC - Other Type:

    BATTERY CHARGE CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    40 V

  • Input Voltage-Min:

    7.5 V

  • Input Voltage-Nom:

    15 V

  • JESD-30 Code:

    R-PDSO-G20

  • JESD-609 Code:

    e4

  • Length:

    12.8 mm

  • Moisture Sensitivity Level:

    2

  • Number of Functions:

    1

  • Number of Terminals:

    20

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -55 °C

  • Output Voltage-Nom:

    5 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP20,.4

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    2.65 mm

  • Supply Current-Max (Isup):

    19 mA

  • Supply Voltage-Max (Vsup):

    40 V

  • Supply Voltage-Min (Vsup):

    7.5 V

  • Supply Voltage-Nom (Vsup):

    15 V

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    185.35 kHz

  • Technology:

    BICMOS

  • Temperature Grade:

    MILITARY

  • Terminal Finish:

    Nickel/Palladium/Gold (Ni/Pd/Au)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    7.5 mm

UC2909MDWREP Frequently Asked Questions (FAQs)

  • It is recommended to follow a star-grounding layout, with the IC at the center, and to place the input and output capacitors as close to the IC as possible. Additionally, ensure that the high-current paths are short and wide to minimize inductance and resistance.
  • Monitor the IC's junction temperature, input voltage, and output current to ensure they are within the specified limits. Also, ensure proper heat sinking and thermal management to prevent overheating.
  • A low-ESR ceramic capacitor with a value of 10-22uF is recommended for the input filter capacitor. The capacitor should be rated for the maximum input voltage and have a low equivalent series resistance (ESR) to minimize voltage ripple.
  • Use a combination of capacitors and inductors to filter the output voltage. The output filter should be designed to attenuate the switching frequency and its harmonics. A good starting point is to use a 10-22uF output capacitor and a 1-2uH output inductor.
  • The EN pin is used to enable or disable the converter. When the EN pin is high, the converter is enabled, and when it's low, the converter is disabled. This pin can be used to implement power sequencing or to shut down the converter during fault conditions.

Trust Checks

This model has been provided by community users.
Community Provided
This model has been verified by system checks.
System Verified
This model has been reviewed by community users.
Community Approved
Sponsored

UC2909MDWREP Overview

Use the download button to access the UC2909MDWREP schematic symbol, PCB footprint, and 3D model.
To find more CAD model downloads similar to this part, try a partial part number search, like UC290, or try a keyword search, such as Switching Regulator or Controllers

About Texas Instruments

Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.

Parts related to UC2909MDWREP

Showing 0 results

UC2909MDWREP Alternates

Showing results

Image Part Number Model
Part Image UC2909DWG4 Rochester Electronics LLC

0.1A BATTERY CHARGE CONTROLLER, 242kHz SWITCHING FREQ-MAX, PDSO20, GREEN, SOIC-20

Part Image UC3909DW Rochester Electronics LLC

0.1A BATTERY CHARGE CONTROLLER, 242kHz SWITCHING FREQ-MAX, PDSO20, GREEN, PLASTIC, SOIC-20

Part Image UC2909DWTR Rochester Electronics LLC

0.1A BATTERY CHARGE CONTROLLER, 242kHz SWITCHING FREQ-MAX, PDSO20, GREEN, SOIC-20

Part Image UC3909DWTRG4 Texas Instruments

Battery Charge Controller, Current-mode, 0.1A, 242kHz Switching Freq-Max, BIPolar, PDSO20

Part Image UC3909DW Texas Instruments

Battery Charge Controller, Current-mode, 0.1A, 242kHz Switching Freq-Max, BIPolar, PDSO20

For a full list of alternate parts for UC2909MDWREP, check out Findchips.com