UC3843D
Or copy the link below:
- Mfr.Part #
- UC3843D
- Manufacturer
- Unitrode
- Package / Case
- 8-SOIC (0.154, 3.90mm Width)
- Datasheet
- Download
- Description
- UC3843 CURRENT-MODE PWM CONTROLL
- Stock
- 7,156
- In Stock ：
- 7,156
Request A Quote(RFQ)
- * Fullname:
- * Company:
- * E-Mail:
- Phone:
- Comment:
- * Quantity:
- Manufacturer :
- Unitrode
- Product Category :
- DC DC Switching Controllers
- Height :
- 1.75mm
- Number of Outputs :
- 1
- Thickness :
- 1.58mm
- Control Mode :
- CURRENT-MODE
- Lifecycle Status :
- ACTIVE (Last Updated: 1 day ago)
- Output Configuration :
- Positive
- Peak Reflow Temperature (Cel) :
- 260
- Supply Current-Max (Isup) :
- 25mA
- Terminal Finish :
- Nickel/Palladium/Gold (Ni/Pd/Au)
- Power Dissipation :
- 650mW
- Mounting Type :
- Surface Mount
- Voltage - Supply (Vcc/Vdd) :
- 12V~28V
- ECCN Code :
- EAR99
- Frequency :
- 450kHz
- Number of Terminations :
- 8
- Package / Case :
- 8-SOIC (0.154, 3.90mm Width)
- Weight :
- 72.603129mg
- Base Part Number :
- UC3843
- RoHS Status :
- ROHS3 Compliant
- JESD-609 Code :
- e4
- Control Features :
- Frequency Control
- Surface Mount :
- yes
- Output Type :
- Transistor Driver
- Lead Free :
- Lead Free
- Function :
- Step-Up, Step-Down, Step-Up/Step-Down
- Number of Pins :
- 8
- Factory Lead Time :
- 6 Weeks
- Duty Cycle (Max) :
- 97%
- REACH SVHC :
- No SVHC
- Topology :
- Boost, Buck, Buck-Boost, Flyback, Forward
- Fall Time (Typ) :
- 50 ns
- Pbfree Code :
- yes
- Synchronous Rectifier :
- No
- Operating Temperature :
- 0°C~70°C TA
- Packaging :
- Tube
- Input Voltage-Nom :
- 15V
- Terminal Form :
- Gull wing
- Rise Time :
- 50ns
- Output Current :
- 200mA
- Frequency - Switching :
- Up to 500kHz
- Analog IC - Other Type :
- SWITCHING CONTROLLER
- Input Current :
- 11mA
- Quiescent Current :
- 11mA
- Length :
- 4.9mm
- Width :
- 3.91mm
- Output Voltage :
- 5V
- Control Technique :
- PULSE WIDTH MODULATION
- Max Duty Cycle :
- 100 %
- Terminal Position :
- Dual
- Operating Supply Current :
- 11mA
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Nominal Input Voltage :
- 15V
- Datasheets
- UC3843D
DC DC Switching Controllers Unitrode UC3843D Overview
The UC3843D from Unitrode is a highly efficient and robust DC DC Switching Controller designed to meet the rigorous demands of current-mode PWM control applications. This controller is ideal for high-frequency switching power supplies, featuring excellent performance characteristics that include minimal cross-conduction and superior load and line regulation. The UC3843D facilitates design flexibility while enhancing system reliability, making it a top choice for engineers looking to optimize power management solutions. The integration of this DC DC Switching Controller Unitrode UC3843D in your projects ensures energy-efficient operation and reduces overall system cost, crucial for large-scale deployments.
UC3843D Features
The UC3843D boasts several key features that make it a standout option in power management. These include a wide operating voltage range, high-frequency operation up to 500 kHz, and built-in features like under-voltage lockout, leading-edge blanking of the current sense, and an error amplifier for precise control. Additionally, its low startup current (typically 0.5 mA) and high efficiency operation make it an environmentally friendly choice for power supply design.
UC3843D Applications
- Power Supplies: The UC3843D is extensively used in the design of both isolated and non-isolated power supplies, ensuring stable performance even under variable load conditions.
- DC-DC Converters: This controller is ideal for step-up or step-down converters, facilitating efficient voltage regulation across a broad range of applications.
- Battery Chargers: With its precise control capabilities, the UC3843D is perfect for managing the charging cycles in battery-powered devices, optimizing battery health and longevity.
- LED Lighting Drivers: In LED lighting applications, the UC3843D helps in delivering consistent, flicker-free illumination while maximizing energy efficiency.
- Communication Equipment: Its robust design makes it suitable for powering communication infrastructure, ensuring reliable operation in various environmental conditions.
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.
Manufacturer related products
Catalog related products
Related products
- Follow Us
-
- Payment
-
- Subscribe
- Certification
-
-
