link to page 4 link to page 4 SRK1001Maximum ratings2Maximum ratingsTable 2. Absolute maximum ratingsSymbolPinParameterValueUnit VCC 4 DC supply voltage -0.3 to 36 V DVS 5 Drain sense voltage referred to GND (with 300 Ω in series to the pin) -3 to 185 V VAUX 6 Auxiliary DC supply voltage -0.3 to 185 V VTOFF 7 TOFF pin voltage rating -0.3 to 3.6 V VTON 8 TON pin voltage rating -0.3 to 3.6 V VSYNC/DIS 1 DIS/SYNC pin voltage rating -0.3 to 3.6 V Stressing the device above the rating listed in above table may cause permanent damage to the device. Exposure to absolute maximum rated conditions may affect device reliability. Table 3. Thermal dataSymbolParameterValueUnit Θth j-amb Max. thermal resistance, junction-to-ambient(1) 125 °C/W Ψth j-case Max thermal resistance, junction-to-case top(1) 5 °C/W Ptot Power Dissipation @Tamb = 50°C 0.8 W Tj Junction Temperature Operating range -40 to 150 °C Tstg Storage Temperature -55 to 150 °C 1. Natural convection test environment, using JEDEC 1s1p PCB with vias. DS13155 - Rev 1page 4/27 Document Outline 1 Block diagram and pin connection 2 Maximum ratings 3 Typical application schematic 4 Electrical characteristics 5 Operation description 5.1 Drain voltage sensing 5.2 Turn-on 5.3 Minimum TON programming 5.4 Adaptive turn-off and TIMER 5.4.1 Fixed frequency mixed DCM/CCM operation 5.4.2 QR operation (with valley skipping) 5.4.3 Fixed frequency DCM operation 5.4.4 Variable frequency CCM operation 5.5 Minimum TOFF programming 5.6 Start-up phase 5.7 Low consumption mode operation: sleep-mode, burst mode, disable state 5.8 DIS/SYNC pin functions 5.9 VAUX pin operation in CC regulation 5.9.1 Example for parameter calculations 5.10 Operation in CC regulation and short circuit 5.11 Adaptive gate drive 6 Layout guidelines 7 Package mechanical data Revision history
