Isolated flyback controller regulates output voltage from the primary-side flyback waveform without an auxiliary winding or optocoupler. The controller uses peak current-mode, fixed-frequency operation for discontinuous-conduction-mode flyback converters. It operates from a 4.5 V to 60 V supply range and includes a 7 V internal LDO output for driving logic-level or standard MOSFETs. Protection functions include hiccup fault protection and thermal protection, and temperature compensation supports output-diode forward-voltage variation.
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| Product Type | No-opto isolated flyback controller |
| Topology | Isolated flyback |
| Conduction Mode | Discontinuous conduction mode |
| Control Mode | Peak current mode |
| Minimum Input Voltage | 4.5V |
| Maximum Input Voltage | 60V |
| Internal LDO Output Voltage | 7V |
| Output Voltage Sensing | Primary-side flyback waveform |
| Optocoupler Required | No |
| Auxiliary Winding Required | No |
| Protection Features | Hiccup protection; thermal protection |
| Package | 16-TQFN |
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