| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
2,000 pcs
|
2000 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
| Category | |
| Manufacturer Name | |
| Current | |
| Frequency | |
| Mode | |
| Mounting Type | |
| Operating Temperature | |
| Supplier Device Package | |
| Supplier Package | |
| Voltage |
The UC3854ADWTR from Texas Instruments is an advanced high-power factor preregulator controller. It is designed to control boost PWM to achieve near-unity power factor by shaping the AC input line current waveform to match the AC input line voltage. This controller utilizes average current mode control, which provides stable, low distortion sinusoidal line current without the need for slope compensation.
Key features include a high bandwidth (5 MHz) low-offset current amplifier, integrated current and voltage amplifier output clamps, and improved multiplier linearity. It offers accurate power limiting and operates worldwide without switches. The device has a wide operating voltage range from 10V to 20V and a fixed frequency oscillator.
Packaged in a 16-SOIC (0.295", 7.50mm Width) surface mount package, the UC3854ADWTR operates within a temperature range of 0°C to 70°C. It has a typical start-up supply current of 300 µA and limits line current distortion to less than 3%. This part is not recommended for new designs.
| Qty | Low | High |
|---|---|---|
| 1+ | $2.51 | $2.51 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The UC3854ADWTR operates from 10 V to 20 V.
The controller switches at up to 200 kHz.
It operates from 0°C to 70°C.
The UC3854ADWTR is available in a 16-SOIC surface-mount package (0.295", 7.50 mm width).
The UC3854ADWTR limits line current distortion to below 3%.
The start-up supply current is 300 µA.
The UC3854ADWTR features a 7.5 V reference.