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TL2843BD The Texas Instruments TL2843BD is a high-performance current-mode PWM controller designed for off-line and DC/DC fixed-frequency control schemes. It operates up to 500kHz and is available in a 14-SOIC package.
Mfr Part #:

TL2843BD

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments TL2843BD is a high-performance current-mode PWM controller designed for off-line and DC/DC fixed-frequency control schemes. It operates up to 500kHz and is available in a 14-SOIC package.
✓ Total Stock: 57 pcs
$ Price Range: $0.63

TL2843BD Available from 1 distributor

✓ 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
57 pcs
On Request
57 pcs On Request 1 On Request On Request 1319 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.

TL2843BD 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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TL2843BD Description

Short technical summary and product information.

The TL2843BD from Texas Instruments is a current-mode Pulse Width Modulation (PWM) controller IC. It is designed to facilitate the implementation of off-line or DC-to-DC fixed-frequency current-mode control schemes with minimal external components.

 

Key electrical features include a low start-up current of less than 0.5mA, trimmed oscillator discharge current, and current mode operation up to 500kHz. The device offers automatic feed-forward compensation and latching PWM for cycle-by-cycle current limiting. It features an internally trimmed reference with undervoltage lockout (UVLO) thresholds of 8.4V (on) and 7.6V (off), and a high-current totem-pole output. The operating voltage range is from 7.6V to 30V, with a maximum duty cycle of 96% and an operating temperature range of -40°C to 85°C.

 

This controller is suitable for switching regulators of any polarity and transformer-coupled DC/DC converters. The TL2843BD is provided in a 14-SOIC surface mount package, measuring 14-SOIC (0.154", 3.90mm Width).

 

It offers features such as double-pulse suppression and an output stage designed to source or sink high-peak current, making it suitable for driving N-channel MOSFETs.

TL2843BD Quick Information

Product Type: DC DC Switching Controller
Series: TL284xB
Canonical Name: TL2843BD Current-Mode PWM Controller
Subcategory: Current Mode PWM Controllers

TL2843BD Compliance

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

TL2843BD Estimated Pricing

Qty Low High
1+ $0.63 $0.63

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

TL2843BD Features

  • Current mode operation up to 500kHz
  • Low start-up current (<0.5mA)
  • Undervoltage lockout with hysteresis
  • High-current totem-pole output
  • 14-SOIC surface mount package

TL2843BD Applications

  • Used in boost converter power supplies.
  • Ideal for flyback converter designs.
  • Suitable for forward converter topologies.
  • Applicable in industrial power systems.

TL2843BD FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the TL2843BD?

7.6V to 30V.

What package is the TL2843BD available in?

14-SOIC surface-mount package.

What is the operating temperature range?

-40°C to 85°C.

What is the maximum switching frequency?

Up to 500kHz.

What is the maximum duty cycle?

96%.

What is the undervoltage lockout threshold?

8.4V (on) and 7.6V (off).

What is the start-up current?

Less than 0.5mA.

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