(China (Mainland))
Product Summary
The TNY178PN is a energy effi cient, offl ine switcher with enhanced flexibility and extended power range. Tiny Switch-LT of the TNY178PN incorporates a 650 V power MOSFET, oscillator, high voltage switched current source, current limit (user selectable) and thermal shutdown circuitry. The IC TNY178PN uses an ON/OFF control scheme and offers a design fl exible solution with a low system cost and extended power capability.
Parametrics
TNY178PN absolute maximum ratings: (1)EN Voltage: -0.3 V to 9 V; (2)EN Current: 100 mA; (3)BP/M Voltage: -0.3 V to 9 V; (4)Storage Temperature: -65 ℃ to 150 ℃; (5)Operating Junction Temperature: -40 ℃ to 150 ℃; (6)Lead Temperature: 260 ℃; (7)DRAIN Voltage: -0.3 V to 650 V.
Features
TNY178PN features: (1)650 V rating optimized for non-active PFC applications; (2)Simple ON/OFF control, no loop compensation needed; (3)Selectable current limit through BP/M capacitor value; (4)Tight I2f parameter tolerance reduces system cost; (5)Self-biased: no bias winding or bias components; (6)Frequency jittering reduces EMI fi lter costs; (7)Pin-out simplifi es heatsinking to the PCB; (8)SOURCE pins are electrically quiet for low EMI.
Diagrams
