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L6590A Datasheet(PDF) 7 Page - STMicroelectronics |
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L6590A Datasheet(HTML) 7 Page - STMicroelectronics |
7 / 19 page 7/19 L6590A Figure 7. IC Operating Current Figure 8. Switching Frequency vs. Temperature Figure 9. Vcc clamp vs. Temperature Figure 10. OVP Threshold vs. Temperature Figure 11. OCP Threshold vs. Current Slope Figure 12. OCP threshold vs. Temperature 7 8 9 10 11 12 13 14 15 3 3.2 3.4 3.6 3.8 4 4.2 4.4 Vcc [V] Icc [mA] Tj = -25 °C Tj = 25 °C Tj = 125 °C MOSFET switching @ 22 kHz -50 0 50 100 150 10 20 30 40 50 60 70 80 Tj [°C] fsw [kHz] Normal operation Standby -50 0 50 100 150 17 17.2 17.4 17.6 17.8 18 Tj [°C] VCCclamp [V] Iclamp =20mA Iclamp =10mA -50 0 50 100 150 15 15.2 15.4 15.6 15.8 16 Tj [°C] Vth [V] 50 100 150 200 250 0.96 0.98 1 1.02 1.04 1.06 dI/dt [mA/µs] Ipklim / (Ipklim @ di/dt = 120 mA/µs) Tj = 25 °C -50 0 50 100 150 0.98 1 1.02 1.04 1.06 1.08 1.1 Tj [°C] Ipklim / (Ipklim @ Tj = 25°C) di/dt = 120 mA/µs |
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