TL3845
Features
- 1 Optimized for Off-Line and DC-to-DC Converters
- Low Start-Up Current (< 1 m A)
- Automatic Feed-forward pensation
- Pulse-by-Pulse Current Limiting
- Enhanced Load-Response Characteristics
- Undervoltage Lockout With Hysteresis
- Double-Pulse Suppression
- High-Current Totem-Pole Output
- Internally Trimmed Bandgap Reference
- 500-k Hz Operation
- Error Amplifier With Low Output Resistance
- Designed to be Interchangeable with UC2842 and
UC3842 Series
2 Applications
- Switching regulators of any polarity
- Transformer-coupled DC/DC convertors
Device Pinout Drawing SOIC (14)
3 Description
The TL284x and TL384x series of control integrated circuits provide the features that are necessary to implement off-line or DC-to-DC fixed-frequency current-mode control schemes, with a minimum number of external ponents. Some of the internally implemented circuits are an undervoltage lockout (UVLO), featuring a start-up current of less than 1 m A, and a precision reference trimmed for...
