SOP-16/PDIP-16 PIN PACAKGE
Pin No and details. Symbol Description Min. Typ. Max. Unit
1 IEAO PFC transconductance current error amplifier output 0 4.25 V
2 IAC PFC gain control reference input 0 1 mA
3 ISENSE Current sense input to the PFC current limit comparator -5 0.7 V
4 VRMS Input for PFC RMS line voltage compensation 0 6 V
5 SS Connection point for the PWM soft start capacitor 0 8 V
6 VDC PWM voltage feedback input 0 8 V
7 RAMP 1
(RTCT)
Oscillator timing node; timing set by RT CT 1.2 3.9 V
8 RAMP 2
(PWM RAMP)
When in current mode, this pin functions as the current sense
input; when in voltage mode, it is the PWM input from PFC
output (feed forward ramp).
0 6 V
9 DC ILIMIT PWM current limit comparator input 0 1 V
10 GND Ground
11 PWM OUT PWM driver output 0 VCC V
12 PFC OUT PFC driver output 0 VCC V
13 VCC Positive supply 10 15 18 V
14 VREF Buffered output for the internal 7.5V reference 7.5 V
15 VFB PFC transconductance voltage error amplifier input 0 2.5 3 V
16 VEAO PFC transconductance voltage error amplifier output 0 6 V