Datenblatt-Suchmaschine für elektronische Bauteile |
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FSB127H Datenblatt(PDF) 8 Page - Fairchild Semiconductor |
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FSB127H Datenblatt(HTML) 8 Page - Fairchild Semiconductor |
8 / 18 page © 2011 Fairchild Semiconductor Corporation www.fairchildsemi.com FSB117H / FSB127H / FSB147H • Rev. 1.0.7 8 Electrical Characteristics (Continued) VDD=15 V, TA=25C unless otherwise specified. Symbol Parameter Condition Min. Typ. Max. Unit Feedback Input Section AV Internal Voltage Dividing Factor of FB Pin (12) 1/4.5 1/4.0 1/3.5 V/V ZFB Pull-Up Impedance of FB Pin 15 21 27 kΩ VFB-OPEN FB Pin Pull-Up Voltage FB Pin Open 5.2 5.4 5.6 V VFB-OLP FB Voltage Threshold to Trigger Open-Loop Protection 4.3 4.6 4.9 V tD-OLP Delay of FB Pin Open-Loop Protection 46 56 66 ms VFB-N FB Voltage Threshold to Exit Green Mode VFB is Rising 2.4 2.6 2.8 V VFB-G FB Voltage Threshold to enter Green Mode VFB is Falling VFB-N-0.2 V VFB-ZDC FB Voltage Threshold to Enter Zero-Duty State VFB is Falling 1.95 2.05 2.15 V VFB-ZDCR FB Voltage Threshold to Exit Zero-Duty State VFB is Rising VFB-ZDC +0.1 V IPK Pin Section VIPK-OPEN IPK Pin Open Voltage 3.0 3.5 4.0 V VIPK-H Internal Upper Clamping Voltage of IPK Pin 3 (12) V VIPK-L Internal Lower Clamping Voltage of IPK Pin 1.5 (12) V IPK Internal Current Source of IPK Pin TA=-40 to 105°C, VIPK=2.25 V 45 50 55 µA ILMT-FL-H Current Limit Plateau when IPK Pin Voltage is Internally Clamped to Upper Limit FSB117H VIPK=3 V, Duty>40% 0.72 0.80 0.88 A FSB127H 0.90 1.00 1.10 FSB147H 1.35 1.50 1.65 ILMT-VA-H Initial Current Limit when IPK Pin Voltage is Internally Clamped to Upper Limit FSB117H VIPK=3 V, Duty=0% ILMT-FL-H -0.20 A FSB127H ILMT-FL-H -0.25 FSB147H ILMT-FL-H - 0.37 ILMT-FL-L Current Limit Plateau when IPK Pin Voltage is Internally Clamped to Lower Limit FSB117H VIPK=1.5 V, Duty>40% 0.36 0.40 0.44 A FSB127H 0.45 0.50 0.55 FSB147H 0.67 0.75 0.83 ILMT-VA-L Initial Current Limit when IPK Pin Voltage is Internally Clamped to Lower Limit FSB117H VIPK=1.5 V, Duty=0% ILMT-FL-L -0.10 A FSB127H ILMT-FL-L -0.12 FSB147H ILMT-FL-L - 0.18 Continued on the following page… |
Ähnliche Teilenummer - FSB127H |
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Ähnliche Beschreibung - FSB127H |
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