UC3843D - TI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

UC3843D
Manufacturer

TI
ChipWorker Part#

CW10020046
Category

Voltage Regulator
Package

SOIC-14
Description

Driver; PWM controller; 1A; 1W; Channels:1; 8.4÷30V; 500kHz; SO14
Documentation

Datasheet

UC3843D Global Supplier

{{ supplierTable.supplier }}	{{ supplierTable.part }}	{{ supplierTable.availability }}	MOQ	{{ supplierTable.delivery_date }}

{{viewMore}}
{{viewMore}}
DigiKey	{{noList.partNo}} {{noList.mfr}}	0 {{ search_item }}	-	{{outStock}}
Arrow	{{noList.partNo}} {{noList.mfr}}	0 {{ search_item }}	-	{{outStock}}
Mouser	{{noList.partNo}} {{noList.mfr}}	0 {{ search_item }}	-	{{outStock}}
					{{submitRFQ}}

UC3843D Specifications

Attribute	Attribute Value

Part Number	UC3843D
Manufacturer	TI
ChipWorker Part#	CW10020046
Category	Voltage Regulator
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	14 Pin
Case/Package	SOIC-14
Frequency	450 kHz
Supply Voltage (DC)	25.0V (max)
Operating Voltage	8.4V ~ 30V
Power Rating	1 W
Number of Outputs	1 Output
Input Voltage (DC)	25.0 V
Output Voltage	13.5 V
Output Current	1 A
Supply Current	25 mA
Number of Channels	1 Channel
Number of Positions	14 Position
Input Current	11.0 mA
Power Dissipation	725 mW
Quiescent Current	11.0 mA
Number of Regulated Outputs	1 Output
Rise Time	50 ns
Switching Frequency	500 kHz
Topology	Buck, Boost, Flyback, Forward
Duty Cycle	100 %
Maximum Duty Cycle	100 %
Fall Time	50 ns
Operating Temperature (Max)	70 ℃
Operating Temperature (Min)	0 ℃
Power Dissipation (Max)	725 mW
Supply Voltage	7.6.30 VDC
Supply Voltage (Max)	25 V
Supply Voltage (Min)	12 V
Input Voltage	25 V
	expand all
Size-Length	8.65 mm
Size-Width	3.91 mm
Size-Height	1.58 mm
Operating Temperature	0℃ ~ 70℃
Product Lifecycle Status	Active
Packaging	Each
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance	No SVHC
REACH SVHC Compliance Edition	2015/06/15
ECCN Code	EAR99

Product Description

The UC3843D is a current-mode Pulse Width Modulation (PWM) Controller provides the necessary features to implement off-line or DC to DC fixed frequency current-mode control schemes with a minimal external parts count. Internally implemented circuits include under-voltage lockout featuring start up current less than 1mA, a precision reference trimmed for accuracy at the error amp input, logic to insure latched operation, a PWM comparator which also provides current limit control and a totem pole output stage designed to source or sink high peak current. The output stage, suitable for driving N-channel MOSFETs, is low in the off state. Differences between members of this family are the under-voltage lockout thresholds and maximum duty cycle ranges. It is ideally suited to off-line applications.
Low start-up current
Automatic feed forward compensation
Pulse-by-pulse current limiting
Enhanced load response characteristics
Under-voltage lockout with hysteresis
Double pulse suppression
High current totem pole output
Internally trimmed bandgap reference
Low RO Error amplifier
Green product and no Sb/Br

expand all

Delivery

DHLPrice

UPS

FedEx

TNT

EMS

OCS

SF EXPRESS

Chipworker Certification

Ordering Information

Order Payment Shipping Package Quality Assurance

These terms and conditions are for reference only. The actual terms and conditions are subject to the sales staff's quotation.
- Please check the technical specifications of the products when ordering.
- MOQ is the minimum order quantity required to purchase each part.
- If you have special ordering instructions, please indicate them on the order page.
- Pre-Shipment Inspection (PSI) will be used when ordering.
- You can check the status of your order in the “My Order” section of your personal account.
- Orders cannot be canceled after the package has been shipped. View more >
- Works with both individual and corporate clients. View more >
- All prices on the website include 20% VAT.
- Invoices are issued in the currency specified, but payment is made in Russian rubles at the exchange rate on the day of payment.
- If you need a detailed invoice or a tax identifier, please contact us.
- Delivery will take between 1 to 2 weeks after the shipment is sent to your country.
- Your order will be processed only after the invoice has been paid.
- The tracking number will be sent to you after the order is shipped. (It may take up to 24 hours for the information to be available from the carrier.) View more >
- Carefully tested and packaged by ChipWorker
- Vacuum packed
- Anti-static packaging
- Anti-vibration foam
- Income quality control (IQC), 800+ qualified distributors.
- Authorities test the chip to ensure the quality, authenticity and safety of your device.
- Decapsulation control
- X-ray inspection
- XRF inspection
- Electrical testing
- Surface testing

Contact Us

Buy UC3843D

Stock is limited and changes quickly. Our 24/7 online sales team is ready to respond to your inquiries and orders at any time.