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TOP247YN Power Integrations Off-line Switcher IC

TOP247YN Power Integrations Off-line Switcher IC

SKU SKU Code: # CC88

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Description

TOP Switch-GX uses the same proven topology as TOPSwitch, cost-effectively integrating the high voltage power MOSFET, PWM control, fault protection and other control circuitry onto a single CMOS chip. Many new features have been included to lower system costs while also improving design flexibility, performance, and energy efficiency. It has the following transparent characteristics: Soft start, 132 kHz switching frequency (automatically lowered at low load), frequency jittering for lower EMI, wider DCMAX, hysteretic thermal shutdown, and bigger creepage packages are also available. Furthermore, all essential parameters (such as current limit, frequency, and PWM gain) have tighter temperature and absolute tolerances to simplify design and save system cost.

Pinout 

1 CONTROL
2 LINE-SENSE
3 EXTERNAL CURRENT LIMIT
4 SOURCE
5 FREQUENCY
6 DRAIN

Features

  • No heatsink required up to 34 W using P/G packages
  • Features eliminate or reduce the cost of external components
  • Fully integrated soft-start for minimum stress/overshoot
  • Externally programmable accurate current limit
  • Wider duty cycle for more power, smaller input capacitor
  • Separate line sense and current limit pins on Y/R/F packages
  • Line under-voltage (UV) detection: no turn off glitches
  • Line overvoltage (OV) shutdown extends line surge limit
  • Line feed-forward with maximum duty cycle (DCMAX) reduction rejects line ripple and limits DCMAX at high line
  • Frequency jittering reduces EMI and EMI filtering costs
  • Regulates to zero load without dummy loading
  • 132 kHz frequency reduces transformer/power supply size
  • Half frequency option in Y/R/F packages for video applications
  • Hysteretic thermal shutdown for automatic fault recovery
  • Large thermal hysteresis prevents PC board overheating 
Specifications

230 VAC ± 15%

Adapter

Open Frame

 

85W

165W

85-265 VAC

-Adapter

-Open Frame

 

55W

125W

DRAIN Voltage  -0.3 V to 700 V
DRAIN Peak Current 5.76 A
CONTROL Voltage  -0.3 V to 9
V CONTROL Current  100 mA
LINE SENSE Pin Voltage -0.3 V to 9 V
FREQUENCY Pin Voltage  -0.3 V to 9 V
Storage Temperature  -65 °C to 150 °C
Operating Junction Temperature -40 °C to 150 °C
Switching Frequency 

FREQUENCY Pin Connected to SOURCE 124 - 140kHz

FREQUENCY Pin Connected to CONTROL 61.5 - 70.5kHz

FREQUENCY Pin Threshold Voltage 2.9V
FREQUENCY Pin Input Current 10 - 100 µA