TL2843DRG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments TL2843DRG4 is a current-mode PWM controller supporting 8.2V to 30V input, up to 500 kHz switching, and 200 mA gate drive output in a 14-pin SOIC, ideal for flyback and boost power supply designs.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- OBSOLETE
- Datasheet
- TL2843DRG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TL2843DRG4?
- Current-mode PWM control with cycle-by-cycle overcurrent limiting provides inherent short-circuit protection without additional sense circuitry
- Up to 500 kHz switching frequency enables use of smaller magnetics and capacitors, reducing power supply size and cost
- 200 mA totem-pole gate drive output directly drives power MOSFETs in flyback, boost, and forward converter topologies
- Built-in oscillator with adjustable frequency via a single RT/CT network simplifies switching frequency design
What is TL2843DRG4 used for?
The TL2843DRG4 is suited for offline flyback power supplies, boost converters, and forward converters in industrial equipment, power adapters, and motor drive auxiliary supplies operating from 8.2 V to 30 V bus voltages. Its 500 kHz maximum switching frequency makes it practical for compact switch-mode power supplies where miniaturizing magnetics is a design priority. The robust 200 mA gate drive and current-mode control architecture also make it a reliable choice for telecom power modules and white-goods appliance power stages requiring precise load regulation.
What are the specifications of TL2843DRG4?
| Pbfree Code | Yes |
| YTEOL | 0 |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 30V |
| Input Voltage-Min | 8.2V |
| Input Voltage-Nom | 15V |
| JESD-30 Code | R-PDSO-G14 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Output Current-Max | 1A |
| Output Voltage-Max | 30V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP14,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 25mA |
| Surface Mount | YES |
| Switcher Configuration | SINGLE |
| Switching Frequency-Max | 500kHz |
| Technology | BIPOLAR |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the TL2843DRG4 datasheet?
TL2843DRG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TL2843DRG4?
Compatible alternatives and drop-in replacements for TL2843DRG4:
Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, PDSO14
Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO8
Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, PDSO8
Frequently Asked Questions
How should power engineers verify TL2843DRG4 input compatibility?
Confirm that startup and operating supply conditions stay within the documented 8.2 V to 30 V input range with adequate transient margin.
Which switching requirement matters when qualifying TL2843DRG4?
Select timing components and magnetics so operation remains within the stated 500 kHz capability while meeting efficiency, stability, and thermal goals.
For gate-drive planning, what output can TL2843DRG4 support?
Evaluate the documented 200 mA gate-drive capability against the selected switch charge, target transition time, losses, and required operating frequency.
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Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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