Datasheets
E-UC3843BD1013TR by: STMicroelectronics

Current Mode PWM

Part Details for E-UC3843BD1013TR by STMicroelectronics

Results Overview of E-UC3843BD1013TR by STMicroelectronics

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Applications Consumer Electronics Energy and Power Systems Renewable Energy

E-UC3843BD1013TR Information

E-UC3843BD1013TR by STMicroelectronics is a Switching Regulator or Controller.
Switching Regulator or Controllers are under the broader part category of Power Circuits.

A power circuit delivers electricity in order to operate a load for an electronic device. Power circuits include transformers, generators and switches. Read more about Power Circuits on our Power Circuits part category page.

Price & Stock for E-UC3843BD1013TR

Part # Distributor Description Stock Price Buy
DISTI # E-UC3843BD1013TR
Avnet Americas - Tape and Reel (Alt: E-UC3843BD1013TR) RoHS: Not Compliant Min Qty: 2500 Package Multiple: 2500 Lead time: 111 Weeks, 0 Days Container: Reel 0
RFQ
Vyrian Other Function Semiconductors 60
RFQ

Part Details for E-UC3843BD1013TR

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E-UC3843BD1013TR Part Data Attributes

E-UC3843BD1013TR STMicroelectronics
Buy Now Datasheet
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E-UC3843BD1013TR STMicroelectronics Current Mode PWM
Part Life Cycle Code Obsolete
Ihs Manufacturer STMICROELECTRONICS
Part Package Code SOIC
Package Description SOP,
Pin Count 8
Reach Compliance Code unknown
ECCN Code EAR99
HTS Code 8542.39.00.01
Factory Lead Time 111 Weeks
Samacsys Manufacturer STMicroelectronics
Analog IC - Other Type SWITCHING CONTROLLER
Control Mode CURRENT-MODE
Control Technique PULSE WIDTH MODULATION
Input Voltage-Max 30 V
Input Voltage-Min 8.2 V
Input Voltage-Nom 15 V
JESD-30 Code R-PDSO-G8
Length 4.9 mm
Number of Functions 1
Number of Terminals 8
Operating Temperature-Max 70 °C
Operating Temperature-Min
Output Current-Max 1 A
Package Body Material PLASTIC/EPOXY
Package Code SOP
Package Shape RECTANGULAR
Package Style SMALL OUTLINE
Qualification Status Not Qualified
Seated Height-Max 1.75 mm
Surface Mount YES
Switcher Configuration SINGLE
Switching Frequency-Max 500 kHz
Temperature Grade COMMERCIAL
Terminal Form GULL WING
Terminal Pitch 1.27 mm
Terminal Position DUAL
Width 3.9 mm

Alternate Parts for E-UC3843BD1013TR

This table gives cross-reference parts and alternative options found for E-UC3843BD1013TR. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of E-UC3843BD1013TR, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Manufacturer Composite Price Description Compare
UC2843BD1013TR STMicroelectronics $0.5747 Current Mode PWM E-UC3843BD1013TR vs UC2843BD1013TR
E-UC2843BD1013TR STMicroelectronics Check for Price Current Mode PWM E-UC3843BD1013TR vs E-UC2843BD1013TR
Part Number Manufacturer Composite Price Description Compare
UC3843BD1G onsemi $0.3414 High Performance Current Mode PWM Controller, SOIC-8 Narrow Body, 98-TUBE E-UC3843BD1013TR vs UC3843BD1G
UC2843BN STMicroelectronics $0.4432 Current Mode PWM E-UC3843BD1013TR vs UC2843BN
UC3843BDR2G onsemi $0.4976 High Performance Current Mode PWM Controller, SOIC-14 NB, 2500-REEL E-UC3843BD1013TR vs UC3843BDR2G
UC3843BVD1R2G onsemi $0.5078 High Performance Current Mode PWM Controller, SOIC-8 Narrow Body, 2500-REEL E-UC3843BD1013TR vs UC3843BVD1R2G
UC3842BD1R2G onsemi $0.5155 High Performance Current Mode PWM Controller, SOIC-8 Narrow Body, 2500-REEL E-UC3843BD1013TR vs UC3842BD1R2G
UC2843BD1 STMicroelectronics $0.6060 Current Mode PWM E-UC3843BD1013TR vs UC2843BD1
UC3843BNG onsemi $0.8548 High Performance Current Mode PWM Controller, 8 LEAD PDIP, 50-TUBE E-UC3843BD1013TR vs UC3843BNG
MIC38HC44YN Microchip Technology Inc $1.9450 IC,SMPS CONTROLLER,CURRENT-MODE,BICMOS,DIP,8PIN,PLASTIC E-UC3843BD1013TR vs MIC38HC44YN
UC3843BVDG onsemi Check for Price High Performance Current Mode PWM Controller, SOIC-14 NB, 55-TUBE E-UC3843BD1013TR vs UC3843BVDG
E-UC3844BD1013TR STMicroelectronics Check for Price Current Mode PWM E-UC3843BD1013TR vs E-UC3844BD1013TR

E-UC3843BD1013TR Related Parts

E-UC3843BD1013TR Frequently Asked Questions (FAQ)

  • A good PCB layout for the E-UC3843BD1013TR should minimize noise and EMI. Keep the switching node (pin 5) away from sensitive nodes, use a solid ground plane, and keep the input and output capacitors close to the IC. Also, use a Kelvin connection for the output voltage sense pins (pins 1 and 2) to reduce noise.

  • To ensure stable operation in high-temperature environments, make sure to follow the recommended operating conditions and thermal management guidelines. Use a heat sink if necessary, and ensure good airflow around the IC. Also, consider using a thermistor or thermal sensor to monitor the temperature and adjust the switching frequency or output voltage accordingly.

  • The maximum allowable voltage on the VCC pin of the E-UC3843BD1013TR is 15V. Exceeding this voltage can damage the IC. It's recommended to use a voltage regulator or a zener diode to regulate the VCC voltage and prevent overvoltage conditions.

  • To troubleshoot oscillations or instability issues with the E-UC3843BD1013TR, check the PCB layout for noise and EMI issues, ensure proper decoupling of the input and output capacitors, and verify that the output voltage sense pins are properly connected. Also, check the input voltage and current, and ensure that the IC is operating within its recommended specifications.

  • Yes, the E-UC3843BD1013TR can be used in a synchronous rectification topology. However, it's essential to ensure that the IC is properly configured and that the synchronous rectifier is properly driven. Consult the datasheet and application notes for more information on synchronous rectification with the E-UC3843BD1013TR.

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