# TL2843DRG4 - Texas Instruments DC DC Switching Controller

## Product Summary

The Texas Instruments TL2843DRG4 is a current mode PWM controller designed for off-line and DC-to-DC converters. It operates at 500kHz with a 100% maximum duty cycle.

## Product Information

| Field | Value |
| --- | --- |
| Part Number | TL2843DRG4 |
| Manufacturer | Texas Instruments |
| Product Type | DC DC Switching Controller |
| Category | Uncategorized |
| Subcategory | DC DC Switching Controller |

## Description

The Texas Instruments TL2843DRG4 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 500kHz switching frequency, a maximum duty cycle of 100%, and an undervoltage lockout (UVLO) of 8.4V/7.6V. The control mode is current, and it supports adjustable and fixed frequency operation, along with current limiting and an error amplifier. The device operates within a temperature range of -40°C to 85°C.

Available in PDIP (8-pin), SOIC (14-pin), and SOIC (8-pin) packages, the TL2843DRG4 is designed for surface mount and through-hole mounting types. Its features include low start-up current (<1mA), automatic feed-forward compensation, pulse-by-pulse current limiting, and high-current totem-pole output.

## Key Specifications

| Specification | Value |
| --- | --- |
| Halogen Free | No |
| SVHC Present | Not Present |

## Availability and Pricing

| Field | Value |
| --- | --- |
| Stock Status | In Stock |
| Distributor Count | 1 |
| Total Stock | 220 |
| Pricing Available | No |

## Distributor Offers

| Distributor | Stock | Unit Price | MOQ | Lead Time | Last Updated |
| --- | --- | --- | --- | --- | --- |
| Optech Co.,Limited | 220 |  |  |  |  |

## Features

- Current mode PWM controller
- 500kHz switching frequency
- 100% maximum duty cycle
- Wide operating temperature range
- Optimized for DC-to-DC converters

## Applications

- Used in off-line converters
- Suitable for DC-to-DC converters
- Enables fixed-frequency control
- Provides current limiting

## Compliance

| Field | Value |
| --- | --- |
| RoHS Status | RoHS3 Compliant |
| REACH Status | REACH Unaffected |
| Lead Free | Yes |
| Moisture Sensitivity Level | 1 Unlimited |
| Halogen Free | No |
| SVHC Present | Not Present |

## Documents and Media

- Image: https://static.distyparts.com/disty-files/images/66/b4/3c/d0014a.png
- Product Page: https://distyparts.com/product/tl2843drg4
- RFQ URL: https://distyparts.com/product/tl2843drg4#rfq

## FAQs

### What is the operating temperature range of the TL2843DRG4?

-40°C to 85°C.

### What package options are available for the TL2843DRG4?

PDIP-8, SOIC-8, and SOIC-14.

### What control mode does the TL2843DRG4 use?

Current mode.

### What topologies does the TL2843DRG4 support?

Boost and flyback.

### What is the switching frequency of the TL2843DRG4?

500kHz.

### What is the maximum duty cycle of the TL2843DRG4?

100%.

### What is the undervoltage lockout threshold?

8.4V/7.6V.

## Related Pages

- Manufacturer: https://distyparts.com/manufacturer/texas-instruments
- Category: https://distyparts.com/category/uncategorized/new-products
- Product Page: https://distyparts.com/product/tl2843drg4
- Markdown File: https://distyparts.com/product/tl2843drg4.md
- TXT File: https://distyparts.com/product/tl2843drg4.txt