Wide Vin 60V Non-synchronous Boost/Flyback/SEPIC Controller, SCT81620Q Replace LM3478-Q1.
SCT81620Q
SCT81620Q.pdf
SCT81620Q.pdfFEATURES
• Qualified for Automotive Applications
• AEC-Q100 Qualified with the Following Results:
- Device Temperature Grade 1: -40°C to 125°C
Ambient Operating Temperature Range
- Device HBM ESD Classification Level H2
- Device CDM ESD Classification Level C3B
• Wide Input Voltage Range: 2.92V-60V
• Low Shutdown Current 3.4uA
• Low Quiescent operating Current: 490uA
• +/- 1.5% Feedback Reference Voltage
• Adjustable Switching Frequency: 100KHz to 2.2MHz
• Integrated Frequency Dithering for EMI Mitigation
• External Frequency Synchronic
• External Compensation
• Supports additional Slope Compensation
• 4ms 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
优势替代
FEATURES
• LM3478Q-Q1 is AEC-Q100 qualified and
manufactured on an automotive grade flow
• 8-lead VSSOP-8
• Internal push-pull driver with 1A 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
• Key specifications:
– Wide supply voltage range of 2.97V to 40V
– 100kHz to 1MHz adjustable clock frequency
– ±2.5% (overtemperature) internal reference
– 10µA shutdown current (overtemperature)
• Create a custom design using the LM3478Q-Q1
with the WEBENCH Power Designer
PIN CONFIGUTION
