List of figures

Figure 1.

Connection diagram ................................................................ 2

Figure 2.

Rth_JA versus copper area ............................................................ 5

Figure 3.

IDLIM vs. TJ....................................................................... 9

Figure 4.

FOSC vs. TJ ...................................................................... 9

Figure 5.

VHV_START vs. TJ .................................................................. 9

Figure 6.

VFB_REF vs. TJ .................................................................... 9

Figure 7.

Quiescent Current Iq vs. TJ............................................................ 9

Figure 8.

Operating current ICC vs. TJ ........................................................... 9

Figure 9.

ICH1 vs. TJ ...................................................................... 10

Figure 10.

ICH2 vs. TJ ...................................................................... 10

Figure 11.

ICH1 vs. VDRAIN................................................................... 10

Figure 12.

ICH2 vs. VDRAIN................................................................... 10

Figure 13.

GM vs. TJ....................................................................... 10

Figure 14.

ICOMP vs. TJ ..................................................................... 10

Figure 15.

RDSON vs. TJ .................................................................... 11

Figure 16.

RDSON vs. IDRAIN ................................................................. 11

Figure 17.

Static drain-source on resistance ...................................................... 11

Figure 18.

Power MOSFET COSS vs. VDS @ VGS=0, f=1MHz .......................................... 11

Figure 19.

VBVDSS vs. TJ.................................................................... 11

Figure 20.

Output characteristic ............................................................... 11

Figure 21.

SOA SO16N package .............................................................. 12

Figure 22.

Maximum avalanche energy vs. Tj ..................................................... 12

Figure 23.

Block diagram ................................................................... 13

Figure 24.

Typical deliverable output power vs. TAMB (Vin: 85-265VAC) .................................... 14

Figure 25.

Power ON and power OFF ........................................................... 15

Figure 26.

Soft startup ..................................................................... 16

Figure 27.

Pulse skipping during startup ......................................................... 17

Figure 28.

Overload protection................................................................ 18

Figure 29.

UVP timing...................................................................... 19

Figure 30.

Connection for input undervoltage protection/disable (isolated or non-isolated topologies) ............... 20

Figure 31.

Hold-up in case of input line missing cycles ............................................... 21

Figure 32.

OVP timing ..................................................................... 22

Figure 33.

Connection for input overvoltage protection (iso/non-iso topologies) .............................. 23

Figure 34.

Connection for output overvoltage protection (non-iso topologies) ................................ 23

Figure 35.

Connection for input and output overvoltage protections (iso/non-iso topologies)...................... 24

Figure 36.

Thermal shutdown timing diagram...................................................... 25

Figure 37.

Flyback converter (non-isolated) ....................................................... 26

Figure 38.

Flyback converter (isolated) .......................................................... 26

Figure 39.

Flyback converter (primary regulation) ................................................... 27

Figure 40.

Buck converter ................................................................... 27

Figure 41.

Buck-boost converter............................................................... 27

Figure 42.

PIN versus VIN in no-load, VOUT = 15V ................................................. 28

Figure 43.

PIN versus VIN in light-load, VOUT = 15V ................................................ 29

Figure 44.

Recommended routing for flyback converter ............................................... 31

Figure 45.

Recommended routing for buck converter ................................................ 31

Figure 46.

SO16N package outline ............................................................. 32

VIPER31

List of figures

DS13285 - Rev 3

page 39/40