TOP242-250

DRAIN Voltage .................................. ............. -0.3 V to 700 V
DRAIN Peak Current: TOP242........................................0.72 A
TOP243......................................................................... 1.44 A
TOP244..........................................................................2.16 A
TOP245......................................................................... 2.88 A
TOP246..........................................................................4.32 A
TOP247..........................................................................5.76 A
TOP248..........................................................................7.20 A
TOP249..........................................................................8.64 A
TOP250 .......................................................................10.08 A
CONTROL Voltage ........................................................100 mA
LINE SENSE Pin Voltage ...................................... -0.3 V to 9 V
CURRENT LIMIT Pin Voltage ...............................-0.3 V to 4.5 V
MULTI-FUNCTION Pin Voltage ..............................- 0.3 V to 9 V
FREQUENCY Pin Voltage .......................................-0.3 V to 9 V
Storage Temperature ..................................... -65 to 150
Operating Junction Temperature⁽²⁾ ................ -40 to 150
Lead Temperature⁽³⁾ .................................................... 260
Notes:
1. All voltages referenced to SOURCE, T_A = 25 .
2. Normally limited by internal circuitry.
3. 1/16 in. from case for 5 seconds.
4. Maximum ratings specified may be applied one at a time, without causing permanent damage to the product. Exposure to Absolute Maximum Rating conditions for extended periods of time may affect product reliability.

TOPSwitch-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 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 TOPSwitch standard DRAIN, SOURCE and CONTROL terminals allow the following functions: line sensing (OV/UV, line feed-forward/DC_MAX reduction), accurate externally set current limit, remote ON/OFF, synchronization to an external lower frequency, and frequency selection (132 kHz/66 kHz).

All package types of TOPSwitch-GX provide the following transparent features: Soft-start, 132 kHz switching frequency (automatically reduced at light load), frequency jittering for lower EMI, wider DC_MAX, hysteretic thermal shutdown, and larger creepage packages. In addition, all critical parameters (i.e. current limit, frequency, PWM gain) have tighter temperature and absolute tolerances to simplify design and optimize system cost