TOP244YN

Integrated Off-line Switcher, TO220, 34 W, 132 kHz, -0.3 V to 700 V, 0.72 A

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Price:: US $0.10~10.00 / piece [Get Latest Price]

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PartNumber:: TOP244YN

Brand:: Power Integrations, Inc. - Power | Pack: TO | D/C: 11+

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Products Upload time: 2012-01-17

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Part Number:TOP244YN
US $0.10 - 10.00
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Product Summary

The TOP244YN is an Integrated Off-line Switcher. It costs effectively integrating the high voltage power MOSFET, PWM control, fault protection and other control circuitry onto a single CMOS chip. Many new functions are integrated to reduce system cost and improve design flexibility, performance and energy efficiency. Depending on package type, either 1 or 3 additional pins over the TOP244YN standard DRAIN, SOURCE and CONTROL terminals allow the following functions: line sensing (OV/UV, line feed-forward/DCMAX reduction), accurate externally set current limit, remote ON/OFF, synchronization to an external lower frequency, and frequency selection (132 kHz/66 kHz).

Parametrics

TOP244YN absolute maximum ratings: (1)DRAIN Voltage: -0.3 V to 700 V; (2)DRAIN Peak Current: 0.72 A; (3)CONTROL Voltage: -0.3 V to 9; (4)VCONTROL Current: 100 mA; (5)LINE SENSE Pin Voltage: -0.3 V to 9 V; (6)CURRENT LIMIT Pin Voltage: -0.3 V to 4.5 V; (7)MULTI-FUNCTION Pin Voltage: - 0.3 V to 9 V; (8)FREQUENCY Pin Voltage: -0.3 V to 9 V; (9)Storage Temperature: -65 ℃ to 150 ℃; (10)Operating Junction Temperature: -40 ℃ to 150 ℃; (11)Lead Temperature: 260 ℃.

Features

TOP244YN features: (1)Extended power range for higher power applications; (2)No heatsink required up to 34 W using P/G packages; (3)Features eliminate or reduce cost of external components; (4)Fully integrated soft-start for minimum stress/overshoot; (5)Externally programmable accurate current limit; (6)Wider duty cycle for more power, smaller input capacitor; (7)Separate line sense and current limit pins on Y/R/F packages; (8)Line under-voltage (UV) detection: no turn off glitches; (9)Line overvoltage (OV) shutdown extends line surge limit; (10)Line feed-forward with maximum duty cycle (DCMAX) reduction rejects line ripple and limits DCMAX at high line; (11)Frequency jittering reduces EMI and EMI filtering costs; (12)Regulates to zero load without dummy loading.