Datasheet CS5171, CS5172, CS5173, CS5174 (ON Semiconductor) - 7

CS5171, CS5172, CS5173, CS5174 TYPICAL PERFORMANCE CHARACTERISTICS
V VCC = (12 V) 100 CC = (12 V) 100 −40°C 85°C ypical) 75 ypical) 75 85°C −40 50 °C 50 (% of T (% of T C 25°C C f OS 25 f OS 25 25 0 °C 0 350 380 400 420 450 −550 −660 −725 VFB (mV) VNFB (mV)
Figure 9. Switching Frequency vs. VFB Figure 10. Switching Frequency vs. VNFB (CS5171/3 only) (CS5172/4 only)
1.280 V 1.278 CC = 12 V −2.42 VCC = 30 V 1.276 −2.43 −2.44 1.274 oltage (V) V V −2.45 1.272 CC = 2.7 V V oltage (V) VCC = 12 V CC = 30 V V−2.46 1.270 −2.47 VCC = 2.7 V 1.268 −2.48 0 50 100 0 50 100 Temperature (°C) Temperature (°C)
Figure 11. Reference Voltage vs. Temperature Figure 12. Reference Voltage vs. Temperature (CS5171/3 only) (CS5172/4 only)
0.20 −7 0.18 −8 0.16 −9 (mA) VCC = 12 V −10 0.14 (mA) I FB −11 0.12 I NFB −12 0.10 VCC = 2.7 V −13 0.08 0 50 100 −14 Temperature (°C) 0 50 100 Temperature (°C)
Figure 13. IFB vs. Temperature (CS5171/3 only) Figure 14. INFB vs. Temperature (CS5172/ 4 only) www.onsemi.com 7