Texas Instruments UC3843AN
UC3843AN
In Stock:94131
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Texas Instruments UC3843AN information
Type
Parameter
Factory Lead Time
6 Weeks
Lifecycle Status
ACTIVE (Last Updated: 1 day ago)
Mounting Type
Through Hole
Package / Case
8-DIP (0.300, 7.62mm)
Surface Mount
NO
Number of Pins
8
Weight
528.605208mg
Operating Temperature
0°C~70°C TA
Packaging
Tube
JESD-609 Code
e4
Pbfree Code
yes
Part Status
Active
Moisture Sensitivity Level (MSL)
1 (Unlimited)
Number of Terminations
8
Termination
Through Hole
ECCN Code
EAR99
Terminal Finish
Nickel/Palladium/Gold (Ni/Pd/Au)
Subcategory
Switching Regulator or Controllers
Max Power Dissipation
1W
Technology
BIPOLAR
Terminal Position
DUAL
Supply Voltage
11V
Terminal Pitch
2.54mm
Frequency
450kHz
Base Part Number
UC3843
Function
Step-Up, Step-Down, Step-Up/Step-Down
Number of Outputs
1
Output Voltage
15V
Output Type
Transistor Driver
Max Output Current
4A
Input Voltage-Nom
15V
Analog IC - Other Type
SWITCHING CONTROLLER
Output Configuration
Positive
Power Dissipation
1W
Output Current
1A
Voltage - Supply (Vcc/Vdd)
7.6V~30V
Quiescent Current
11mA
Control Features
Frequency Control
Topology
Boost, Buck, Buck-Boost, Flyback, Forward
Control Mode
CURRENT-MODE
Frequency - Switching
Up to 500kHz
Max Input Voltage
25V
Control Technique
PULSE WIDTH MODULATION
Rise Time
50ns
Supply Current-Max (Isup)
25mA
Synchronous Rectifier
No
Fall Time (Typ)
50 ns
Nominal Input Voltage
15V
Max Duty Cycle
100 %
Input Current
11mA
Duty Cycle (Max)
96%
Height
5.08mm
Length
9.81mm
Width
6.35mm
Thickness
3.9mm
REACH SVHC
No SVHC
RoHS Status
ROHS3 Compliant
Lead Free
Lead Free
- PCN Design/Specification :
- PCN Assembly/Origin :
- Datasheets :
UC3843AN Description
The UC3843AN family of control ICs is an enhanced version of the UC3843AN family that is pin-for-pin compatible. This class of devices has numerous improved characteristics, including the ability to regulate current mode or switched-mode power supply. The output stage can sink at least 10 mA at less than 1.2 V for VCC above 5 V during UVLO, while the oscillator discharge is cut to 8.3 mA during startup.
UC3843AN Features
? Compensation for Feedforward is done automatically.
? Current Limiting on a Pulse-by-Pulse Basis
? Load Response Characteristics that are Improved
? Hysteresis Undervoltage Lockout
? Pulse Suppression on Both Sides
? Totem Pole Output with a High Current
? Bandgap Reference with Internal Trimming
? Operation up to 500 kHz
UC3843AN Applications
? Power Supplies with Switching Modes (SMPS)
? DC-DC Converters (DC-DC Converters)
? Energy Modules
? Power supply for industry
? PSU that runs on batteries
- ImagePart NumberManufacturerPackage / CaseNumber of PinsNumber of OutputsMax Output CurrentOutput CurrentFrequency - SwitchingMax Input VoltageOutput VoltageView Compare
UC3843AN
NA8-DIP (0.300, 7.62mm)
8
1
4 A
1 A
Up to 500kHz
25 V
15 V
- UC3845ANNA
8-DIP (0.300, 7.62mm)
8
1
1 A
1 A
500kHz
25 V
15 V
UC3843AN
VS
UC3845AN
- UC3842ANNA
8-DIP (0.300, 7.62mm)
8
1
1 A
1 A
Up to 500kHz
25 V
15 V
UC3843AN
VS
UC3842AN
- UC2844NG4NA
8-DIP (0.300, 7.62mm)
8
1
1 A
200 mA
Up to 500kHz
25 V
13.5 V
UC3843AN
VS
UC2844NG4
Aztec Electronics's Payment Terms
Aztec Electronics offers many types of payment options, and support in multiple currencies such as GBP, US dollars, RMB, etc. As relationships are built, payment plans can be established so that payments can be made on a predetermined time frame after receipt of the invoice.
T/T IN ADVANCE (Pay at time of order placement via wire transfer)
How to Ship Electronic Components?
We take great care when shipping electronics overseas. Both the U.S. and U.K. governments have imposed restrictions on air transport of electronics, according to the International Air Transport Association.
1. Understand the shipping rules of the destination country
Different countries have different regulations for shipping electronic equipment, check for certain certifications, and read the destination country's guidelines before shipping to prevent delays or confiscation of goods by customs.
2. Choose a reliable express logistics provider
From providing pick-up service to checking the status with real-time order number, conveniently track packages. At present, the logistics providers we cooperate with more include DHL, UPS, Fedex, TXT.
Of course, if you have a long-term cooperative freight forwarder or your own company's logistics account, you can pick up the goods directly from our warehouse
3. How much does it cost to ship the electronic components?
The shipping cost of electronic products depends on the size and weight of the package and the shipping distance. You can first ask us about the size/weight of the products we sell to estimate the shipping cost.
4. How long does it take to ship the electronic components?
If electronic component in stock, it is usually shipped before 5 o'clock on the same day, and it usually takes 5-10 working days to complete it by international express.
If it is a scheduled component, it needs to wait for the arrival of the parts, and then it will be inspected before delivery. If there are special circumstances, the sales staff will confirm with you. Weekends and holidays will also affect the delivery time of electronic products.
1. We provide 365 days warranty for all electronic components.
2. If you need a test report, please let us know. We have a long-term cooperative testing laboratory. If you have familiar testing laboratory, we can also ship to your designated laboratory for testing.
3. Where does Aztec Electronics mainly purchase electronic components from?
Distributors, free market, 48 global large-scale OEM factories in close contact with us (Great Price advantage, 100% original)
2.Are the Texas Instruments Incorporated (TI)'s UC3843AN price and stock displayed on the website accurate?
Aztec Electronics inventory fluctuates greatly and cannot be updated in time, it is recommended to confirm the order with Aztec Electronics salesperson or online customer service before payment.
You Also Ask
- How to test electronic components and quality inspections?
- How to transport your electronic components safely?
Need Any Service, please feel free contact us.
After the electronic components have passed the quality inspection of Aztec Electronics, there are generally the following five packaging forms for electronic components: Tape, Tube, Tray, Bulk and Ammo.
Tape/Reel | Tube | Tray | Bulk | Ammo |
Weave bulk chips into tapes and pack them into reels through SMD components packaging Tape Machine. Reel is the most commonly used. | When packaging, arrange the components in the same direction and put them into plastic tubes one at a time. | Choose tray package with the same specifications as the original manufacturer, put the components into the tray and use the strapping machine. | Bulk packaging means that the SMD components are freely packaged in a formed plastic box or bag. | Adhesive tape cut continuously in predetermined quantities. The cut strips are placed in boxes for safekeeping. |
Choose electronic components that are vacuum-sealed against water, dust, moisture, oxidation, corrosion, and even UV or RF pollution.
How to pack electronic components in cartons?
1. Choose the right box for your electronic components2. Use anti-static bubble film protect electronic component
3. Put it into the box, no buffer dead corner, 360-degree package.
4. Labeled as fragile to ensure that the courier knows what needs to be done with the package.
Texas Instruments Incorporated (TI) was founded in 1930 and is headquartered in Dallas, Texas, USA. Haviv Ilan is the President and CEO. They design, manufacture, test and sell analog and embedded semiconductors. Industrial and automotive markets are the best markets for their products .
The company focuses on amplifiers, audio, clock and timing, data converters, die and wafer services, DLP® products, interfaces, isolation devices, logic, microcontrollers (MCUs) and processors, motor drivers, power management, radio frequency & Microwaves, Sensors, Switches & Multiplexers, Wireless Connectivity.
Their values: Trustworthy, Inclusive, Innovative, Competitive, Results-oriented
Acquisition history：
In October 1999, TI acquired power Trends
In 2000, TI acquired Burr Brown (BB) at approximately $7.6 billion.
In September 2011, TI acquired National semiconductor(NS.NSC) for US$6.5 billion.
In 2021, TI acquired an operational 300mm fabrication plant located in Lehi, Utah from Micron for $900 million.
Main application fields:
Automotive, Communications Equipment, Enterprise Systems, Industrial Applications, Aerospace and Defense, Appliances, Building Automation, Factory Automation and Control, Grid Infrastructure, Industrial Transportation (non-automotive and non-light truck), Lighting, Medical, Motor Drives, Power Delivery, Pro Audio, Video & Signage, Retail Automation & Payments, Test & Measurement, Personal Electronics.
