AN4003 Datasheet, PDF (3/28 Pages) Fairchild Semiconductor – PC POWER SUPPLY DESIGN WITH KA3511

3. PIN DESCRIPTION
C1
E
C2
DTC GND TUVP PT V12
V5
V3.3 Vref
#22
#12
KA3511
#1
V_CC COMP E/A(-) EA(+) TREM REM
RT
#11
CT
DET TPG
PG
Pin
No. Name I/O
Function
Pin
No. Name I/O
Function
1 V_CC I Supply voltage
2 COMP O E/A output
12 Vref O Precision reference VTG
13 V3.3 I OVP, UVP input for 3.3V
3 E/A(-) I E/A (-) input
14 V5 I OVP, UVP input for 5V
4 E/A(+) I E/A (+) input
15 V12 I OVP, UVP input for 12V
5 TREM – Remote on/off delay
16 PT I Extra protection input
6 REM I Remote on/off input
17 T_UVP – UVP delay
7 RT – Oscillation freq. setting R 18 GND – Signal ground
8 CT – Oscillation freq. setting C 19 DTC I Deadtime control input
9 DET I Detect input
20 C2 O Output 2
10 T_PG – PG delay
21 E
– Power ground
11 PG O Power good signal output 22 C1 O Output 1
Rev C, November 1999
3