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L7986 データシート(PDF) 6 Page - STMicroelectronics |
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L7986 データシート(HTML) 6 Page - STMicroelectronics |
6 / 43 page Electrical characteristics L7986 6/43 DocID022450 Rev 6 4 Electrical characteristics TJ = 25 °C, VCC = 12 V, unless otherwise specified. Table 4. Electrical characteristics Symbol Parameter Test condition Values Unit Min. Typ. Max. VCC Operating input voltage range (1) 4.5 38 V VCCON Turn-on VCC threshold (1) 4.5 VCCHYS VCC UVLO hysteseris (1) 0.1 0.4 RDSON MOSFET on resistance 200 m (1) 400 ILIM Maximum limiting current 3.7 4.2 4.7 A Oscillator FSW Switching frequency (1) 210 250 275 KHz VFSW FSW pin voltage 1.254 V D Duty cycle 0 100 % FADJ Adjustable switching frequency RFSW = 33 k 1000 KHz Dynamic characteristics VFB Feedback voltage 4.5 V < VCC < 38 V 0.593 0.6 0.607 V 4.5 V < VCC < 38 V(1) 0.582 0.6 0.618 DC characteristics IQ Quiescent current Duty cycle = 0, VFB = 0.8 V 2.4 mA IQST-BY Total standby quiescent current 20 30 A Enable VEN EN threshold voltage Device OFF level 0.3 V Device ON level 1.2 IEN EN current EN = VCC 7.5 10 A Soft start TSS Soft-start duration FSW pin floating 7.4 8.2 9.1 ms FSW = 1 MHz, RFSW = 33 k 2 Error amplifier VCH High level output voltage VFB < 0.6 V 3 V VCL Low level output voltage VFB > 0.6 V 0.1 IO SOURCE Source COMP pin VFB = 0.5 V, VCOMP = 1 V 19 mA |
同様の部品番号 - L7986 |
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同様の説明 - L7986 |
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