UC3846QTR
Current Mode PWM Controller 500mA 500kHz 20-Pin PLCC T/R
Inventory:7,343
- 90-day after-sales guarantee
- 365 Days Quality Guarantee
- Genuine Product Guarantee
- 7*24 hours service quarantee
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Part Number : UC3846QTR
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Package/Case : PLCC-20
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Manufacturer : Texas Instruments
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Components Classification : DC DC Switching Controllers
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Datesheet : UC3846QTR DataSheet (PDF)
Overview of UC3846QTR
The UC3846QTR from Texas Instruments is a DC-DC switching controller IC that belongs to the category of Power Management Integrated Circuits (PMIC). This positive output step-up, step-up/step-down controller IC is designed for a wide range of applications including boost, flyback, forward converter, half-bridge, and push-pull regulators. Its 20-LCC package with J-Lead makes it ideal for surface mount technology. With its ability to handle high voltage supply (6.95V ~ 40V), high-frequency switching (up to 500kHz), and 50% maximum duty cycle, the UC3846QTR is suitable for a variety of industries such as automotive, medical equipment, and industrial processing. Note that this product has been obsoleted by the manufacturer.
Key Features
- Positive output step-up and step-up/step-down controller
- Compatible with boost, flyback, forward converter, half-bridge, and push-pull topologies
- Synchronous rectifier for high efficiency
- Clock sync feature for synchronized switching
- Current limit, enable, frequency control, and soft start features for precise control
- Operating temperature range of 0°C to 70°C (TA)
- Mounting type: Surface mount
Application
- Automotive systems
- Medical equipment
- Industrial processing applications
- Power supplies
- DC-DC conversion
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
Package | Tape & Reel (TR) | Product Status | Obsolete |
Output Type | Transistor Driver | Function | Step-Up, Step-Up/Step-Down |
Output Configuration | Positive | Topology | Boost, Flyback, Forward Converter, Half-Bridge, Push-Pull |
Number of Outputs | 2 | Output Phases | 1 |
Voltage - Supply (Vcc/Vdd) | 6.95V ~ 40V | Frequency - Switching | 500kHz |
Duty Cycle (Max) | 50% | Synchronous Rectifier | Yes |
Clock Sync | Yes | Control Features | Current Limit, Enable, Frequency Control, Soft Start |
Operating Temperature | 0°C ~ 70°C (TA) | Mounting Type | Surface Mount |
Package / Case | 20-LCC (J-Lead) | Supplier Device Package | 20-PLCC (9x9) |
Base Product Number | UC3846 |
Warranty & Returns
Warranty, Returns, and Additional Information
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QA & Return Policy ?
Parts Quality Guarantee: 365 days
Returns for refund: within 90 days
Returns for Exchange: within 90 days
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Shipping and Package ?
Shipping:For example, FedEx, JP, UPS, DHL,SAGAWA, or YTC.
Parts Packaging Guarantee: Featuring 100% ESD anti-static protection, our packaging incorporates high toughness and superior buffering capabilities.
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Payment ?
For example, channels like VISA,MasterCard,Western Union,PayPal,MoneyGram,Rakuten Pay and more.
If you have specific payment channel preferences or requirements, please get in touch with our sales team for assistance.

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UC3846QTR
Current Mode PWM Controller 500mA 500kHz 20-Pin PLCC T/R
Inventory:
7,343
Warranty & Returns
After Sales Service
What after-sales service can be provided?
We provide an extended quality assurance period of 365 days for all components we offer. If a return or exchange becomes essential, kindly adhere to these guidelines:
·Initiate the request within 90 days after the item's shipment date.
·Coordinate the return or exchange with our team.
·Keep the items in their original condition as delivered.
·Please be aware that the feasibility of returning or exchanging items is contingent upon an evaluation of their actual state upon return.
Shipping
What channels of transportation of goods does the website support?
We usually send out our orders during business days using FedEx, SF, UPS, or DHL. We're also here to assist with alternative shipping options. Should you require additional information about shipping particulars or expenses, please don't hesitate to get in touch with us.







Package
How to ensure that the parts will be intact during transportation?
The items we ship will be packaged in anti-static bags, ensuring ESD anti-static protection, while the outer packaging boasts exceptional durability and sealing. We offer packaging options like Tape and Reel, Cut Tape, Tube, or Tray to suit your needs.




Payment
Which payment methods can be used to pay for goods
Accepted payment methods commonly encompass VISA, MasterCard, UnionPay, Western Union, PayPal, and various other options.
Should you have a particular payment preference or wish to seek information on rates and other specifics, please feel free to reach out to us.




