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L5991 Datasheet(PDF) 6 Page - STMicroelectronics |
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L5991 Datasheet(HTML) 6 Page - STMicroelectronics |
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10 0 0.2 0.4 0.6 0.8 1 1.2 6 8 10 12 14 16 Isource [A] Vsat = V [V] Vcc = Vc = 15V Tj = 25°C Figure 11. Output saturation. 0 0.2 0.4 0.6 0.8 1 1.2 0 0.5 1 1.5 2 2.5 Isink [A ] 10 V sat = V [V] Vc c = Vc = 15V T j = 25°C Figure 12. Output saturation. 1 10 100 1000 10000 0 40 80 120 fsw (Hz) SVRR (dB) Vcc=15V Vp-p=1V Figure 10. Vref SVRR vs. switching frequency. 0 200 400 600 800 1,000 1,200 1,400 0 10 20 30 40 50 Vpin10 [mV] Ipin10 [mA] Vcc < Vccon before turn-on Figure 13. UVLO Saturation 10 20 30 40 10 20 50 100 200 500 1000 2000 5000 Rt (kohm) fsw (KHz) 100pF 220pF 470pF 1nF 2.2nF 5.6nF Tj = 25°C Vcc = 15V, V15 =0V Figure 14. Timing resistor vs. switching frequency. -50 -25 0 25 50 75 100 125 150 4.9 4.95 5 5.05 5.1 Tj (°C) Vref [V] Vcc = 15V Iref= 20mA Figure 9. Vref vs. junction temperature. L5991 - L5991A 6/23 |
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