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| ISL78229 Datasheet, PDF (20/71 Pages) Intersil Corporation – 2-Phase Boost Controller with Drivers | |||
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ISL78229
Performance Curves Unless otherwise specified, operating conditions for the oscilloscope waveforms are VIN = 12V,
VOUT = 36V and TA = +25°C. (Continued)
TRACK 4.0V/DIV
VOUT 2.0V/DIV WITH 36V OFFSET
VOUT 1.0V/DIV WITH 28V OFFSET
PH2 40.0V/DIV
PH1 40.0V/DIV
10µs/DIV
FIGURE 29. DIGITAL TRACKING, (TRACKING SIGNAL,
FREQUENCY = 200kHz, D = 0.5), VOUT = 28.3V
I_LOAD 5.0A/DIV
PH2 30.0V/DIV
PH1 30.0V/DIV
10ms/DIV
FIGURE 30. DE MODE (DE/PHDRP = VCC), TRANSIENT RESPONSE,
IOUT = 0.03 TO 8A STEP LOAD
VOUT 1.0V/DIV WITH 36V OFFSET
I_LOAD 5.0A/DIV
PH2 30.0V/DIV
PH1 30.0V/DIV
VOUT 30.0V/DIV
PH1 40.0V/DIV
PVCC 5.0V/DIV
SDA 3.0V/DIV
1ms/DIV
FIGURE 31. CCM MODE (DE/PHDRP = GND), TRANSIENT RESPONSE,
IOUT = 0 TO 8A STEP LOAD
2ms/DIV
FIGURE 32. SHUTDOWN VIA PMBus⢠COMMAND OPERATION, OFF
VOUT 1.0V/DIV WITH 36V OFFSET
I_LOAD 5.0A/DIV
PH2 30.0V/DIV
PH1 30.0V/DIV
5ms/DIV
FIGURE 33. DE+PH_DROP MODE (DE/PHDRP = FLOAT), TRANSIENT
RESPONSE, IOUT = 1 TO8A STEP LOAD
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VOUT 30.0V/DIV
PH1 40.0V/DIV
PVCC 5.0V/DIV
SDA 3.0V/DIV
5ms/DIV
FIGURE 34. ENABLE VIA PMBus⢠COMMAND OPERATION, ON
FN8656.3
February 12, 2016
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