Wide Vin 50V Non-synchronous Boost/Flyback/SEPIC Controller, SCT81620 Replace LM3478.
SCT81620
SCT81620.pdf
SCT81620.pdfFEATURES
? Qualified for Automotive Applications
? Wide Input Voltage Range: 3.2V-50V
? Low Shutdown Current 3.7uA
? Low Quiescent operating Current: 450uA
? Adjustable Switching Frequency: 100KHz to 2.2MHz
? Integrated Frequency Dithering for EMI Mitigation
? External Frequency Synchronic
? External Compensation
? Supports additional Slope Compensation
? 22ms Internal Soft-start Time
? Integrated Protection Feature
- Constant Peak-Current Protection Threshold
Over Input Voltage
- Output Overvoltage Protection
- Adjust Under-Voltage Lockout
- Optional Hiccup Over Load Protection
- Thermal Shutdown Protection:165°C
? MSOP-8L(3mm*3mm) Package
PIN CONFIGUTION
優勢替代
FEATURES
? 8-lead VSSOP-8 and SOIC-8 packages
? Internal Push-Pull Driver With 1-A Peak
Current Capability
? Current Limit and Thermal Shutdown
? Frequency Compensation Optimized With a
Capacitor and a Resistor
? Internal Soft Start
? Current Mode Operation
? Undervoltage Lockout With Hysteresis
? Create a Custom Design Using the LM3478
with the WEBENCH Power Designer
PIN CONFIGUTION
