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ACT8870QJ-T Folha de dados(PDF) 38 Page - Active-Semi, Inc |
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ACT8870QJ-T Folha de dados(HTML) 38 Page - Active-Semi, Inc |
38 / 43 page ACT8870QJ-T Rev 3.0, 02-Oct-2017 Innovative PowerTM www.active-semi.com ActiveSwitcherTM is a trademark of Active-Semi. Copyright © 2016-2017 Active-Semi, Inc. I2CTM is a trademark of NXP 38 Startup Buck1 VIN LDO2/3 Buck2 Buck3 0.7ms Buck4 CMI 102 Startup nRESET_AUX1 0.5ms 0.5ms 1.991ms 0.5ms SLEEP Mode Enter SLEEP Mode by pulling PWREN low. The IC operates in Active mode when PWREN is high. Note that in the default configuration, nRESET_AUX1 goes low when the IC enters Sleep mode. If the user requires nRESET_AUX1 to stay high in Sleep mode, write a 1 into register 0x00h, bit 7. DVS Mode CMI 102 does not include the DVS function. Note that the processor can change Buck2 and Buck3 output voltages on the fly with EXT_PG and nRESET_AUX2. This effectively provides independent DVS control for these two outputs. Buck2 VID Boot Voltage - EXT_PG The EXT_PG input sets the Buck2 boot up voltage. When EXT_PG = 0, Buck2 = 1.5V. When EXT_PG = 1, Buck2 = 1.35V. EXT_PG changes Buck2 at startup and during normal operation. Buck3 VID Boot Voltage - nRESET_AUX2 The nRESET_AUX2 input sets the Buck3 boot up voltage. When nRESET_AUX2 = 0, Buck3 = 1.2V. When nRESET_AUX2 = 1, Buck3 = 1.8V. nRESET_AUX2 changes Buck3 at startup and during normal operation. POK Thresholds POK_UV = 4.25V POK_OV = 5.7V PG The PG pin is not functional with CMI 102. Leave the PG pin floating. nRESET nRESET is not functional in CMI 102. Leave the nRESET pin floating. |
Nº de peça semelhante - ACT8870QJ-T |
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Descrição semelhante - ACT8870QJ-T |
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