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ISL8117DEMO2Z Datasheet(PDF) 12 Page - Renesas Technology Corp

Part # ISL8117DEMO2Z
Description  Synchronous Step-Down PWM Controller
PDF  24 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

ISL8117DEMO2Z Datasheet(HTML) 12 Page - Renesas Technology Corp

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ISL8117
FN8666 Rev 4.00
Page 12 of 24
Apr 19, 2018
FIGURE 18. INPUT CURRENT COMPARISON WITH
MODE = CCM/DEM, VIN = 48V
FIGURE 19. PHASE, LGATE, CLKOUT AND INDUCTOR CURRENT
WAVEFORMS
FIGURE 20. OUTPUT RIPPLE, MODE = CCM
FIGURE 21. OUTPUT RIPPLE, MODE = DEM
FIGURE 22. START-UP WAVEFORMS; MODE = CCM, LOAD = 0A,
VIN =48V
FIGURE 23. START-UP WAVEFORMS; MODE = DEM, LOAD = 0A,
VIN = 48V
Typical Performance Curves OscilloscopeplotsaretakenusingtheISL8117EVAL2Zevaluationboard,V
IN = 18 to 60V,
VOUT = 12V, IOUT = 20A unless otherwise noted. (Continued)
0.001
0.01
0.1
1
10
0.01
0.1
1
10
IIN (DEM)
IIN (CCM)
IOUT (A)
IL 5A/DIV
LGATE 5V/DIV
CLKOUT 5V/DIV
PHASE 50V/DIV
1µs/DIV
4µs/DIV
VOUT 50mV/DIV
VOUT 50mV/DIV
NO LOAD, VIN = 48V
20A LOAD, VIN = 48V
4µs/DIV
VOUT 50mV/DIV
VOUT 50mV/DIV
NO LOAD, VIN = 48V
20A LOAD, VIN = 48V
1ms/DIV
4ms/DIV
VOUT 5V/DIV
LGATE 5V/DIV
CLKOUT 5V/DIV
IL 10A/DIV
DEM TO CCM TRANSITION
EXTBIAS KICK-IN
BOOT CAP REFRESH
4ms/DIV
VOUT 5V/DIV
LGATE 5V/DIV
CLKOUT 5V/DIV
IL 5A/DIV
EXTBIAS KICK-IN
BOOT CAP REFRESH
BURST MODE OPERATION



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