Datasheet
Table Of Contents
- Figure 1. Typical topology
- Table 1. Device summary
- 1 Block diagram
- 2 Typical power
- 3 Pin settings
- 4 Electrical data
- 5 Typical electrical characteristics
- Figure 7. Current limit vs. TJ
- Figure 8. Switching frequency vs. TJ
- Figure 9. Drain start voltage vs. TJ
- Figure 10. HFB vs. TJ
- Figure 11. Brownout threshold vs. TJ
- Figure 12. Brownout hysteresis vs. TJ
- Figure 13. Brownout hysteresis current vs. TJ
- Figure 14. Operating supply current (not switching) vs. TJ
- Figure 15. Operating supply current (switching) vs. TJ
- Figure 16. Current limit vs. RLIM
- Figure 17. Power MOSFET ON resistance vs. TJ
- Figure 18. Power MOSFET breakdown voltage vs. TJ
- Figure 19. Thermal shutdown
- 6 Typical circuit
- 7 Efficiency performances for a typical flyback converter
- 8 Operation description
- 8.1 Power section and gate driver
- 8.2 High voltage startup generator
- 8.3 Power-up and soft-start
- 8.4 Power down operation
- 8.5 Auto-restart operation
- 8.6 Oscillator
- 8.7 Current mode conversion with adjustable current limit set point
- 8.8 Overvoltage protection (OVP)
- 8.9 About the CONT pin
- 8.10 Feedback and overload protection (OLP)
- 8.11 Burst mode operation at no load or very light load
- 8.12 Brownout protection
- 8.13 2nd level overcurrent protection and hiccup mode
- 9 Package mechanical data
- 10 Revision history
Package mechanical data VIPER37
32/35 Doc ID 022218 Rev 1
9 Package mechanical data
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK
®
packages, depending on their level of environmental compliance. ECOPACK
specifications, grade definitions and product status are available at: www.st.com. ECOPACK
is an ST trademark.
Table 12. SDIP10 mechanical data
Dim.
mm
Min. Typ. Max.
A 5.33
A1 0.38
A2 2.92 4.95
b 0.36 0.56
b2 0.51 1.15
c 0.2 0.36
D 9.02 10.16
E 7.62 8.26
E1 6.1 7.11
E2 7.62
E3 10.92
e 1.77
L 2.92 3.81