Key facts
- Brand
- Texas Instruments
- Model
- TL284XB
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-05-08
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Texas Instruments TL284xB TL384xB High-Performance Current-Mode PWM Controllers Datasheet
The TL284xB and TL384xB series are high‑performance current‑mode PWM controller ICs designed for off‑line or DC‑to‑DC fixed‑frequency control schemes. They include an undervoltage‑lockout, precision reference, latchable PWM, and a high‑current totem‑pole output suitable for driving N‑channel MOSFETs.
The document lists ordering part numbers, package drawings, recommended operating conditions, absolute maximum ratings, and detailed electrical characteristics such as start‑up current, oscillator discharge current, UVLO thresholds, duty‑cycle limits, and temperature ranges.
Texas Instruments TL284XB specifications
| Start‑up current | < 0.5 mA |
|---|---|
| Oscillator discharge current (typical) | 8.3 mA |
| Typical UVLO thresholds (TLx842B/TLx844B) | 16 V on, 10 V off |
| Operating temperature range – TL284xB | -40 °C to 85 °C |
| Operating temperature range – TL384xB | 0 °C to 70 °C |
| Maximum duty‑cycle (TLx842B/TLx843B) | ≈ 100 % |
Source: Texas Instruments TL284xB TL384xB High-Performance Current-Mode PWM Controllers Datasheet
All Texas Instruments TL284XB documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the start‑up current of the TL284xB series?
The start‑up current is less than 0.5 mA.
From: Texas Instruments TL284xB TL384xB High-Performance Current-Mode PWM Controllers Datasheet
What are the typical UVLO threshold voltages for TLx842B?
Typical thresholds are 16 V when on and 10 V when off.
From: Texas Instruments TL284xB TL384xB High-Performance Current-Mode PWM Controllers Datasheet
What are the typical UVLO threshold voltages for the TLx842B devices?
Typical UVLO thresholds are 16 V when on and 10 V when off.
From: Texas Instruments TL284xB TL384xB PWM Controller Datasheet