Product Summary

The TOP254EN is an enhanced ecosmart, integrated off-line switcher with advanced feature set and extended power range.

Parametrics

TOP254EN absolute maximum ratings: (1)DRAIN Peak Voltage: -0.3 V to 700 V; (2)DRAIN Peak Current: TOP254: 2.08 A; (3)CONTROL Voltage: -0.3 V to 9 V; (4)CONTROL Current: 100 mA; (5)VOLTAGE MONITOR 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(1): 260 ℃.

Features

TOP254EN features: (1)No heatsink required up to 35 W using P, G and M packages with universal input voltage and up to 48 W at 230 VAC; (2)Output overvoltage protection (OVP)is user programmable for; (3)latching/non-latching shutdown with fast AC reset; (4)Allows both primary and secondary sensing; (5)Line undervoltage (UV)detection prevents turn-off glitches; (6)Line overvoltage (OV)shutdown extends line surge limit; (7)Accurate programmable current limit; (8)Optimized line feed-forward for line ripple rejection; (9)132 kHz frequency (254Y-258Y and all E/L packages)reduces transformer and power supply size; (10)Half frequency option for video applications; (11)Frequency jittering reduces EMI fi lter cost; (12)Heatsink is connected to SOURCE for low EMI; (13)Improved auto-restart delivers <3% of maximum power in short circuit and open loop fault conditions; (14)Accurate hysteretic thermal shutdown function automatically recovers without requiring a reset; (15)Fully integrated soft-start for minimum start-up stress; (16)Extended creepage between DRAIN and all other pins improves fi eld reliability.

Diagrams

TOP254EN pin connection

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
TOP254EN
TOP254EN

Power Integrations

AC/DC Switching Converters Int Off-Line Switchr 43W/62W

Data Sheet

0-1: $1.02
1-25: $0.85
25-100: $0.63
100-250: $0.59
Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
TOP200-14
TOP200-14

Other


Data Sheet

Negotiable 
TOP200-4
TOP200-4

Other


Data Sheet

Negotiable 
TOP200YAI
TOP200YAI

Power Integrations

AC/DC Switching Converters 5-12W 85-265 VAC 10-25W100/115/230VAC

Data Sheet

Negotiable 
TOP200YN
TOP200YN

Power Integrations

AC/DC Switching Converters 5-12W 85-265 VAC 10-25W100/115/230VAC

Data Sheet

Negotiable 
TOP201YAI
TOP201YAI

Power Integrations

AC/DC Switching Converters 0-22W 85-265 VAC 20-45W100/115/230VAC

Data Sheet

Negotiable 
TOP201YN
TOP201YN

Power Integrations

AC/DC Switching Converters 0-22W 85-265 VAC 20-45W100/115/230VAC

Data Sheet

Negotiable