UC1845A
Features
- Optimized for Off-Line and DC-DC Converters
- Low Start-Up Current (< 0.5 m A)
- Trimmed Oscillator Discharge Current
- Automatic Feedforward 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
- Up to 500-k Hz Operation
- Create a Custom Design Using the UCx84x A With the WEBENCH® Power Designer
2 Applications
- Switch Mode Power Supplies (SMPS)
- DC-DC Converters
- Power Modules
- Industrial PSU
- Battery Operated PSU
3 Description
The UCx84x A family of control devices is a pin-for-pin patible improved version of the UCx84x family. Providing the necessary features to control currentmode or switched-mode power supplies, this family of devices has many improved features
: startup current is less than 0.5 m A, oscillator discharge is trimmed to 8.3 m A, and during UVLO, the output stage can sink at least 10 m A...
