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TL2843DR The Texas Instruments TL2843DR is a current mode PWM controller designed for off-line and DC-to-DC converters. It operates with a voltage range of 7.6V to 30V and a frequency up to 500kHz.
Mfr Part #:

TL2843DR

Available from 2 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments TL2843DR is a current mode PWM controller designed for off-line and DC-to-DC converters. It operates with a voltage range of 7.6V to 30V and a frequency up to 500kHz.
✓ Total Stock: 8,562 pcs
$ Price Range: $0.31

TL2843DR Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Optech Co.,Limited ✓
Non-Authorised Inventory information
8,500 pcs
On Request
8500 pcs On Request 1 3 On Request 2000+ On Request On Request
Braun Electronic Components ✓
Non-Authorised Inventory information
62 pcs
On Request
62 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

TL2843DR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Clock Sync
Control Features
Duty Cycle (Max)
Frequency
Function
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Phases
Output Type
Supplier Device Package
Supplier Package
Synchronous Rectifier
Topology
Voltage
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TL2843DR Description

Short technical summary and product information.

The TL2843DR from Texas Instruments is an economy, single-ended, current mode PWM controller. It is optimized for off-line and DC-to-DC converters, offering features necessary for fixed-frequency current-mode control schemes with minimal external components.

 

Key electrical specifications include a wide voltage range of 7.6V to 30V and an operating frequency of up to 500kHz. The controller supports a maximum duty cycle of 97% and features pulse-by-pulse current limiting. It also includes undervoltage lockout with hysteresis, double-pulse suppression, and a high-current totem-pole output.

 

This device is designed for easy integration, being interchangeable with UC2842 and UC3842 series controllers. It features automatic feed-forward compensation and an internally trimmed bandgap reference. The TL2843DR is available in a 14-SOIC package, suitable for surface mount applications.

 

Its versatile topology support includes Boost, Flyback, and Forward configurations, making it adaptable for various power supply designs. The controller's features enhance load-response characteristics and provide robust operational control.

TL2843DR Quick Information

Product Type: DC DC Switching Controller
Series: TL284x
Canonical Name: TL2843DR Current Mode PWM Controller
Subcategory: DC/DC Controllers

TL2843DR Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

TL2843DR Estimated Pricing

Qty Low High
1+ $0.31 $0.31

Estimated market price range - modelled values for guidance only, not live distributor offers.

TL2843DR Features

  • Current mode PWM controller for converters.
  • Operates from 7.6V to 30V supply.
  • Switching frequency up to 500kHz.
  • Pulse-by-pulse current limiting included.
  • Available in 14-SOIC surface mount package.

TL2843DR Applications

  • Optimized for off-line converters.
  • Suitable for DC-to-DC converters.
  • Used in Boost converter designs.
  • Applicable to Flyback converters.
  • Supports Forward converter topologies.

TL2843DR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the input voltage range of the TL2843DR?

7.6V to 30V.

What is the operating temperature range?

-40°C to 85°C.

What package does the TL2843DR come in?

14-SOIC (0.154", 3.90mm Width) surface-mount package.

What topologies does the TL2843DR support?

Boost, flyback, and forward.

What is the maximum switching frequency?

Up to 500kHz.

Does the TL2843DR include undervoltage lockout?

Yes, it has undervoltage lockout with hysteresis.

What is the maximum duty cycle?

97%.

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