Product Summary

The TOP244YN is an extended power, design flexible, Ecosmart, intergrated off-line switcher. All package types of the TOP244YN provide the following transparent features: soft-start, 132kHz switching frequency (automatically reduced at light load), frequency jittering for lower EMI, wider DCmax hysteretic thermal shutdown, and larger creepage packages.

Parametrics

TOP244YN absolute maximum ratings: (1) Drain voltage: -0.3V to 700V; (2) Drain peak current: 2.16A; (3) control voltage: -0.3V to 9V; (4) Control current: 100mA; (5) line sense pin voltage: -0.3V to 9V; (6) current limited pin voltage: -0.3V to 4.5V; (7) frequency pin voltage: -0.3V to 9V; (8) storage temperature: -65°C to 150°C; (9) operating junction temperature: -40°C to 150°C; (10) lead temperature: 260°C.

Features

TOP244YN features: (1) Extended power range for higher power applications; (2) No heatsink required up to 34 W using P package; (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 fltering costs; (12) Regulates to zero load without dummy loading; (13) 132 kHz frequency reduces transformer/power supply size; (14) Half frequency option in Y/R/F packages for video applications; (15) Hysteretic thermal shutdown for automatic fault recovery; (16) Large thermal hysteresis prevents PC board overheating.

Diagrams

TOP244YN pin connection

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
TOP244YN
TOP244YN

Power Integrations

AC/DC Switching Converters 45 W 85-265 VAC 65 W 230 VAC

Data Sheet

0-1: $1.83
1-25: $1.48
25-100: $1.13
100-250: $1.05
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