UC2844AQD8R TI DC DC Switching Controllers
The UC2844A is a current-mode PWM controller for off-line and DC-DC converter applications, operating from 10 V to 30 V supply. It features a trimmed oscillator for precise frequency control, a 1-A totem-pole output for driving power MOSFETs, and UVLO with 16-V on threshold and 10-V off hysteresis. The device includes low start-up current of 0.5 mA typical, cycle-by-cycle current limiting, and thermal protection. Operating temperature range is –40 °C to 125 °C. Packaged in an 8-pin SOIC, this controller is designed for high-reliability industrial and automotive applications. Selection is ideal for off-line flyback and forward converters requiring robust current-mode control. Applications include AC-DC adapters, battery chargers, isolated telecom power supplies, and industrial power converters requiring high reliability and wide temperature operation. In stock at HL Electronics – request a quote for fast delivery.
Pricing (USD)
| Quantity | Unit Price |
|---|---|
| 1+ | $ 0.71 |
| 100+ | $ 0.59 |
| 1250+ | $ 0.54 |
| 2500+ | $ 0.51 |
Technical Specifications
- Part No.UC2844AQD8R
- Model UC2844AQD8R
- Category Integrated Circuits (ICs) > Power Management (PMIC) > DC DC Switching Controllers
- Manufacturer Texas Instruments
- Packaging Tape & Reel (TR)
- Part Status Active
- Output Type Transistor Driver
- Function Step-Up, Step-Down, Step-Up/Step-Down
- Topology Boost, Buck, Flyback, Forward
- Number of Outputs 1
- Output Phases 1
- Voltage - Supply (Vcc/Vdd) 10 V ~ 30 V
- Frequency - Switching Up to 500 kHz
- Duty Cycle (Max) 48%
- Synchronous Rectifier No
- Clock Sync No
- Control Features Frequency Control
- Operating Temperature -40°C ~ 125°C (TA)
- Mounting Type Surface Mount
- Supplier Device Package 14-SOIC
- Base Product Number UC2844
- RoHS ROHS3 Compliant
- Standard Package 2500
