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ACT8870QJ-T Folha de dados(PDF) 38 Page - Active-Semi, Inc

Nome de Peças ACT8870QJ-T
Descrição Electrónicos  Advanced PMU for Microcontrollers and Solid State Drive Applications
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Fabricante Electrônico  ACTIVE-SEMI [Active-Semi, Inc]
Página de início  http://www.active-semi.com
Logo ACTIVE-SEMI - Active-Semi, Inc

ACT8870QJ-T Folha de dados(HTML) 38 Page - Active-Semi, Inc

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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.


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