(Hong Kong)
Product Summary
The LT1737IS#TR is a monolithic switching regulator controller pecifically designed for the isolated flyback topology. The LT1737IS#TR drives the gate of an external MOSFET and is generally powered from a DC supply voltage. The LT1737 has a number of features not found on other isolated flyback controller ICs. Applications of the LT1737IS#TR include: isolated flyback switching regulators, medical instruments, instrumentation power supplies.
Parametrics
LT1737IS#TR absolute maximum ratings: (1) Vcc Supply Voltage: 22V; (2) UVLO Pin Voltage: Vcc; (3) I Pin Voltage SENSE:2V; (4) FB Pin Current: ±2mA; (5) Operating Junction Temperature Range: -40°C to 125°C; (6) Storage Temperature Range: -65°C to 150°C; (7) Lead Temperature (Soldering, 10 sec) : 300°C.
Features
The LT1737IS#TR features: (1) Drives External Power MOSFETl; (2) Supply Voltage Range: 4.5V to 20V; (3) Flyback Voltage Limited Only by External Components; (4) Senses Output Voltage Directly from Primary Side Winding (TM) No Optoisolator Required; (5) Switching Frequency from 50kHz to 250kHz with External Capacitor; (6) Moderate Accuracy Regulation Without User Trims; (7) Regulation Maintained Well into Discontinuous Mode; (8) External I Resistor SENSE; (9) Optional Load Compensation; (10) Optional Undervoltage Lockout; (11) Shutdown Feature Reduces Iq to 50μA Typ; (12) Available in 16-Pin GN and SO Packages.
Diagrams
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IC REG CTRLR FLYBK ISO CM 16SOIC |
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LT1737IS#TRPBF |
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IC REG CTRLR FLYBK ISO CM 16SOIC |
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