DESCRIPTION
The NE/SE5562 is a single-output control circuit for switched-mode power supplies. This single monolithic IC contains all control and protection features needed for full-featured switched-mode power supplies. The 100mA source/sink output is designed to drive power FETs directly. The associated output logic is designed to prevent double pulsing or cross-conduction current spiking on the output. All of the control and protect features work cycle-by-cycle up to the maximum operating frequency of 600kHz. For ease of interface, all digital inputs are TTL or CMOS compatible. The SE grade part is characterized and guaranteed over the ambient temperature range of -55 to +125°C and junction temperature range of -55 to +135°C. PIN CONFIGURATION D, F, N Packages FEED FORWARD 1 CT 2 RT 3 EXTERNAL MOD IN 4 DUTY CYCLE CONTROL 5 REMOTE ON/OFF 6 VI 7 20 GROUND 19 OUTPUT 18 DEMAG OVERVOLT IN 17 V S 16 C DELAY 15 OUT INVERT CONTROL 14 CURRENT SENSE 13 AUX COMP HYSTERESIS 12 AUX COMP INPUT 11 EXTERNAL SYNC IN TOP VIEW FEEDBACK VOLTAGE 8 VZ 9 ERROR AMP OUT 10 SL00388 Figure 1.
Philips
