STCF07 Datasheet, PDF (19/26 Pages) STMicroelectronics – High power buck-boost white LED driver

STCF07
Typical performance characteristics
10 Typical performance characteristics
Figure 10. I_OUT 80 mA vs. V_IN
Figure 11. I_OUT 800 mA vs. V_IN
100.000
95.000
90.000
85.000
80.000
75.000
70.000
65.000
60.000
55.000
50.000
2.50
25 °C
- 40 °C
85°C
3.00 3.50 4.00 4.50
Input Voltage [V]
5.00
5.50
1000.000
950.000
900.000
850.000
800.000
750.000
700.000
650.000
600.000
550.000
500.000
2.50
25 °C
- 40 °C
85 °C
3.00 3.50 4.00 4.50
Input Voltage [V]
5.00
5.50
Figure 12. Efficiency vs. V_IN
Figure 13. Efficiency vs. V_IN, I_O = 400 mA
100
95
90
85
80
75
70
65
800 mA
60
400 mA
55
50
2.5
3
3.5
4
4.5
5
5.5
Input Voltage [V]
100
95
90
85
80
75
70
-40°C
65
25°C
60
85°C
55
50
2.5
3
3.5
4
4.5
5
5.5
Input Voltage [V]
Figure 14. Line transient
V_step = 600 mVpp, T_r = 10 µs, T_f = 10 µs, V_IN = 3.6 V to 4.2 V
Doc ID 16757 Rev 3
19/26