FN8808 datasheet(18/44 Pages) RENESAS

tên linh kiện	FN8808

Giải thích chi tiết về linh kiện	2-Phase Boost Controller with Integrated Drivers

PDF	44 Pages

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nhà sản xuất	RENESAS [Renesas Technology Corp]

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18 / 44 page

ISL78227

FN8808 Rev.6.02

Page 18 of 43

Feb 28, 2025

FIGURE 17. DE MODE (DE/PHDRP = VCC), DIODE EMULATION

OPERATION, PULSE SKIPPING, IOUT = 0A

FIGURE 18. DE MODE (DE/PHDRP = VCC), DIODE EMULATION

OPERATION, IOUT = 29mA

FIGURE 19. DE MODE (DE/PHDRP = VCC), PH1 AND PH2 DIODE

EMULATION OPERATION, PULSE SKIPPING, IOUT = 7mA

FIGURE 20. DE+PH_DROP MODE (DE/PHDRP = FLOAT), PH1 DIODE

EMULATION WITH PH2 DROPPED, IOUT = 29mA

FIGURE 21. DE+PHDRP MODE (DE/PHDRP = FLOAT), PH1 DIODE

EMULATION WITH PH2 DROPPED, IOUT = 7mA

FIGURE 22. DE+PHDRP MODE (DE/PHDRP = FLOAT), PH2 ADDED

AND DROPPED, UNDER TRANSIENT STEP LOAD OF 1A

TO 8A

Performance Curves Unlessotherwisespecified,operating conditionsfortheoscilloscopewaveformsareV

IN = 12V,

VOUT = 36V, and TA = +25°C. (Continued)

VOUT 1.0V/DIV WITH 36V OFFSET

PGOOD 4.0V/DIV

PH1 20.0V/DIV

5µs/DIV

PH2 20.0V/DIV

PH2 30.0V/DIV

PH1 30.0V/DIV

2µs/DIV

VOUT 10.0V/DIV

PH2 30.0V/DIV

PH1 30.0V/DIV

10µs/DIV

VOUT 10.0V/DIV

PH1 30.0V/DIV

PH2 30.0V/DIV

2µs/DIV

VOUT 10.0V/DIV

PH1 30.0V/DIV

PH2 30.0V/DIV

10µs/DIV

VOUT 10.0V/DIV

PH2 30.0V/DIV

PH1 30.0V/DIV

10ms/DIV

IMON 300mV/DIV

I_LOAD 5.0A/DIV

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