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ST8R00 Fiches technique(PDF) 8 Page - STMicroelectronics |
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ST8R00 Fiches technique(HTML) 8 Page - STMicroelectronics |
8 / 19 page Electrical characteristics ST8R00 8/19 Table 6. Electrical characteristics for the ST8R00W (VI = 5V, VINH = 2V, IO = 100mA, TJ = -25°C to 125°C, CI = CO = 10µF(X7R), L = 4.7µH unless otherwise specified.) Symbol Parameter Test conditions Min. Typ. Max. Unit VO Output voltage (1) 612 V VSTART-UP Start-up voltage IO = 400mA, VI rising 3 3.5 V VI Input voltage range 4 6 V VFB Feedback voltage IO = 50mA 1.195 1.22 1.245 V VFB_OFF Feedback voltage IO = 0, VINH = 0 0 V IFB Feedback current VFB = 0, VINH = 2V 600 nA ISUPPLY Supply current To be measured at VI, VO = 7V, no load 10 mA RDSON_N Internal N channel RDSON ILX = 400mA 300 m Ω RDSON_P Internal P channel RDSON ILX = 400mA 300 ILX(leak) Internal leakage current VLX = 4V, VFB = 2V, VINH = 0 0.5 µA ILX(LIM) LX current limitation VLX = 4V 3 A fOSC Oscillator frequency To be measured on LX pin 0.8 1.2 1.4 MHz DTY Max. oscillator duty cycle To be measured on LX pin 90 % Eff Efficiency IO = 50mA, VO = 7V 85 % IO = 500mA, VO = 9V 90 IO = 1A, VO = 9V 90 VINH_H Inhibit threshold high 2 V VINH_L Inhibit threshold low VI = 4 to 6V, IO = 50mA 0.8 IINH Inhibit pin current VINH = VI = 5V 2 µA TSHDN Thermal shut down (2) 130 150 °C THYS Thermal shut down hysteresis (2) 15 °C ΔVO/ΔVI Line transient response VI from 4 to 5.5V, IO= 500mA (2) -5 5 %VO ΔVO/ΔIO Load transient response VI = 5V, IO from 10mA to 500mA, VO = 7V (2) -5 5 %VO ΔVO/ΔVI Start-up transient VI from 0 to 5V, IO = 500mA -10 10 %VO TSTART Start-up time VINH from 0 to 5V, IO = 100mA 500 µs 1. For VO higher than 9V the maximum output current capability is reduced according to LX current limitation 2. Guaranteed by design |
Numéro de pièce similaire - ST8R00 |
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Description similaire - ST8R00 |
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