TL3843BP The Texas Instruments TL3843BP is a current-mode PWM controller designed for DC-to-DC switching regulators. It operates with a voltage range of 7.6V to 30V and a maximum frequency of 500kHz.
Mfr Part #:

TL3843BP

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments TL3843BP is a current-mode PWM controller designed for DC-to-DC switching regulators. It operates with a voltage range of 7.6V to 30V and a maximum frequency of 500kHz.
✓ Total Stock: 6,788 pcs
$ Price Range: $0.38

TL3843BP Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
6,788 pcs
6788 pcs On Request 1 On Request On Request 18+ On Request On Request

TL3843BP 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
Operating Voltage
Output Configuration
Output Phases
Output Type
Supplier Device Package
Synchronous Rectifier
Topology
Voltage

TL3843BP Description

Short technical summary and product information.

The TL3843BP from Texas Instruments is a high-performance current-mode Pulse Width Modulation (PWM) controller. 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 specifications include an operating voltage range of 7.6V to 30V and a maximum operating frequency of up to 500kHz. The device features a low start-up current of less than 0.5mA and a trimmed oscillator discharge current of 8.3mA typical. It supports a maximum duty cycle of 96% and includes features like automatic feed-forward compensation and latching PWM for cycle-by-cycle current limiting.

 

This controller is suitable for applications such as switching regulators of any polarity and transformer-coupled DC/DC converters. The TL3843BP is housed in an 8-pin PDIP package and is designed for through-hole mounting.

 

Environmental specifications include an operating temperature range of 0°C to 70°C (TA). The RoHS status is listed as RoHS3 Compliant, MSL is 1 Unlimited, and REACH status is REACH Unaffected, though these compliance details are noted with low confidence.

TL3843BP Quick Information

Product Type: DC DC Switching Controller
Series: TL384xB
Canonical Name: TL3843B Current Mode PWM Controller
Subcategory: Switching Regulators

TL3843BP Compliance

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

TL3843BP Estimated Pricing

Qty Low High
1+ $0.38 $0.38

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

TL3843BP Features

  • Current-mode PWM controller for DC-DC.
  • Operates up to 500kHz frequency.
  • Wide 7.6V to 30V operating voltage.
  • Low start-up current (<0.5mA).
  • 8-PDIP package for through-hole mounting.

TL3843BP Applications

  • DC DC switching power supply designs.
  • Multi-topology converter controllers.
  • Power management in industrial systems.
  • Offline and DC to DC converters.

TL3843BP FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the TL3843BP?

The TL3843BP operates from 7.6V to 30V.

What is the maximum switching frequency of the TL3843BP?

The maximum switching frequency is 500kHz.

What package is the TL3843BP available in?

The TL3843BP is available in an 8-PDIP (8-DIP 0.300", 7.62mm) through-hole package.

What is the operating temperature range of the TL3843BP?

The operating temperature range is 0°C to 70°C.

What is the maximum duty cycle of the TL3843BP?

The maximum duty cycle is 96%.

What is the start-up current of the TL3843BP?

The start-up current is less than 0.5mA.

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