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ST8R00W Fiches technique(PDF) 7 Page - STMicroelectronics |
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ST8R00W Fiches technique(HTML) 7 Page - STMicroelectronics |
7 / 19 page ST8R00 Electrical characteristics 7/19 5 Electrical characteristics Table 5. Electrical characteristics for the ST8R00 (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) 1. For VO higher than 9V the maximum output current capability is reduced according to LX current limitation 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, no load 500 µA 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 = 100mA, VO = 9V 80 % 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) 2. Guaranteed by design 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 |
Numéro de pièce similaire - ST8R00W |
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Description similaire - ST8R00W |
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