| Part Number | LTC3901 |
| Manufacturer | Linear Technology |
| Title | Secondary Side Synchronous Driver |
| Description | LTC3901 Secondary Side Synchronous Driver for Push-Pull and Full-Bridge Converters FEATURES ■ ■ ■ ■ ■ ■ ■ ■ DESCRIPTIO U APPLICATIO S ■ ■ ■ ■ ■... |
| Features |
■ ■ ■ ■ ■ ■ ■ ■ DESCRIPTIO U APPLICATIO S ■ ■ ■ ■ ■ N-Channel Synchronous MOSFET Driver Programmable Timeout Reverse Inductor Current Sense Gate Drive Transformer Synchronization Sequence Monitor Wide VCC Supply Range: 4.5V to 11V 15ns Rise/Fall Times at VCC = 5V, CL = 4700pF Undervoltage Lockout... |
| File Size | 229.56KB |
| Datasheet |
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LTC3900 : The LTC®3900 is a secondary-side synchronous rectifier driver designed to be used in isolated forward converter power supplies. The chip drives N-channel rectifier MOSFETs and accepts pulse sychronization from the primary-side controller via a pulse transformer. The LTC3900 incorporates a full range of protection for the external MOSFETs. A programmable timeout function is included that disables both drivers when the synchronization signal is missing or incorrect. Additionally, the chip senses the output inductor current through the drain-source resistance of the catch MOSFET, shutting off the MOSFET if the inductor current reverses. The LTC3900 also shuts off the drivers if the supply volta.