UC3844BNG | onsemi
PWM CONTROLLER UC3844BNG
NCNR (non cancelable / non returnable)
High Performance Current Mode Controller, UC3844BNG, ON Semiconductor
The UC3844B, UC3845B series are high performance fixed frequency current mode controllers. They are specifically designed for Off−Line and dc−dc converter applications offering the designer a cost−effective solution with minimal external components. These integrated circuits feature an oscillator, a temperature compensated reference, high gain error amplifier, current sensing comparator, and a high current totem pole output ideally suited for driving a power MOSFET.
FEATURES
- Trimmed Oscillator for Precise Frequency Control
- Oscillator Frequency Guaranteed at 250 kHz
- Current Mode Operation to 500 kHz Output Switching Frequency
- Output Deadtime Adjustable from 50% to 70%
Technical Data
- Temperature: 0°C to 70°C
- Output current: 1 A
- Output voltage range: 4.9-5.1 VDC
| Property | Value |
|---|---|
| Customs tariff number | 85423390 |
| Property | Value |
|---|---|
| Date of RoHS guidelines | 6/8/11 |
| RoHS conform | Yes |
| SVHC free | Yes |