UC3842BD1
- Mfr.Part #
- UC3842BD1
- Manufacturer
- onsemi
- Package / Case
- 8-SOIC (0.154, 3.90mm Width)
- Datasheet
- Download
- Description
- IC REG CTRLR BST FLYBK ISO 8SOIC
- Stock
- 31
- In Stock :
- 31
Request A Quote(RFQ)
- * Fullname:
- * Company:
- * E-Mail:
- Phone:
- Comment:
- * Quantity:
- Manufacturer :
- onsemi
- Product Category :
- DC DC Switching Controllers
- Frequency :
- 500kHz
- Operating Temperature :
- 0°C~70°C TJ
- Frequency - Switching :
- Up to 500kHz
- Packaging :
- Tube
- Duty Cycle (Max) :
- 96%
- Number of Terminations :
- 8
- Terminal Form :
- Gull wing
- Time@Peak Reflow Temperature-Max (s) :
- 30
- Base Part Number :
- UC3842
- Package / Case :
- 8-SOIC (0.154, 3.90mm Width)
- Topology :
- Boost, Flyback
- Lifecycle Status :
- ACTIVE (Last Updated: 7 months ago)
- Max Duty Cycle :
- 100 %
- Rise Time :
- 50ns
- Switcher Configuration :
- Single
- RoHS Status :
- ROHS3 Compliant
- Function :
- Step-Up, Step-Up/Step-Down
- Voltage - Supply (Vcc/Vdd) :
- 10V~30V
- Output Voltage :
- 5.1V
- Input Voltage-Nom :
- 15V
- Mount :
- Surface Mount
- Mounting Type :
- Surface Mount
- Control Features :
- Frequency Control
- Synchronous Rectifier :
- No
- Length :
- 4.9mm
- Fall Time (Typ) :
- 50 ns
- Peak Reflow Temperature (Cel) :
- 260
- Output Type :
- Transistor Driver
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Number of Outputs :
- 1
- Output Configuration :
- Positive
- Output Current :
- 1A
- Analog IC - Other Type :
- SWITCHING CONTROLLER
- Width :
- 3.9mm
- Input Voltage (Max) :
- 30V
- Terminal Position :
- Dual
- ECCN Code :
- EAR99
- Terminal Finish :
- Nickel/Palladium/Gold (Ni/Pd/Au)
- Number of Pins :
- 8
- Factory Lead Time :
- 10 Weeks
- Control Mode :
- CURRENT-MODE
- JESD-609 Code :
- e4
- Control Technique :
- PULSE WIDTH MODULATION
- Datasheets
- UC3842BD1

DC DC Switching Controllers onsemi UC3842BD1 Overview
The onsemi UC3842BD1 is a robust DC DC switching controller designed to handle a wide range of power supply applications. This controller is optimized for boost and flyback topologies and integrates features that enhance system reliability and efficiency. Its ability to operate under isolated conditions makes it a prime choice for developing advanced power solutions. The UC3842BD1 is engineered to deliver precise control, making it an essential component for power management solutions that require tight regulation and high efficiency. Its compact 8SOIC package ensures ease of integration into various design architectures, particularly appealing to B2B clients seeking versatile, high-performance components for volume applications.
UC3842BD1 Features
The UC3842BD1 includes several key features that make it a standout option for power control applications. It offers a wide operating voltage range and high-frequency operation which minimizes the size of necessary external components. Additionally, its built-in under-voltage lockout ensures stability and safety in operation. The device also provides a totem-pole output stage with high-state clamp, which is crucial for driving power MOSFETs directly and efficiently.
UC3842BD1 Applications
- Power Supply Units: Utilizes its boost and flyback controller capabilities to efficiently convert and manage power in computer servers and telecom infrastructures.
- LED Drivers: The device can be configured to provide stable current for driving high-power LEDs in lighting applications, ensuring consistent brightness and long lifespan.
- Battery Chargers: Applies its precise control features to manage the charging process for battery-powered devices, enhancing safety and extending battery health.
- Consumer Electronics: Supports various consumer electronics by providing reliable power management solutions that optimize efficiency and reduce energy consumption.
You may place an order without registering to Chip IC. We strongly recommend that you log in before purchasing as you can track your order at any time.
RFQ (Request for Quotations)It is recommended to send RFQ to get the latest prices and stock availability about the part.Our sales will reply to your inquiry within 24 hours.
Payment MethodFor your convenience, we accept multiple payment methods in USD, Such as:PayPal, Credit Card, and wire transfer.
IMPORTANT NOTICEYou may place an order without registering to 1. You'll receive an order confirmations by e-mail soon . (Please remember to check the spam box if you didn't hear from us). 2. Since stock availability and prices may change at any time, the sales will reconfirm the order details and update you at soonest time.
Most of our products are shipped via FEDEX,DHL,UPS and SF EXPRESS...
Shipping CostShipping Cost starts at $40, but some countries will exceed $40. For example (South Africa, Brazil, India, Pakistan, Israel, etc.).If customer have shipping account, we can make shipment under customer’s shipping account with freight collect directly.
The basic freight (for package ≤0.5 KG ) depends on the time zones and countries
Once the goods are shipped, estimated delivery time depends on the shipping methods you chose. You can track it by the tracking no.
















