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PCA9450 Scheda tecnica(PDF) 20 Page - NXP Semiconductors

Il numero della parte PCA9450
Spiegazioni elettronici  Power management IC for i.MX 8M application processor family
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Produttore elettronici  NXP [NXP Semiconductors]
Homepage  http://www.nxp.com
Logo NXP - NXP Semiconductors

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NXP Semiconductors
PCA9450
Power management IC for i.MX 8M application processor family
PCA9450
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2019. All rights reserved.
Product data sheet
Rev. 1.0 — 19 November 2019
20 / 96
aaa-035715
PHY_0P9
LDO4
VDD_DRAM
VDD_G/VPU
BUCK3
VDD_SOC
VDDA_1P8
VDDA_DRAM
NVCC_1V8
NVCC_3V3
NVCC_DRAM
POR_B
BUCK1
LDO3
BUCK5
BUCK4
BUCK6
Warm Reset
source
VDD_ARM
BUCK2
NVCC_SD2
LDO5
RUN/
STANDBY
Mode
Reset
RUN/
STANDBY
All regulator output
goes to default voltage
tRESET
Figure 13. Warm reset
Table 13. tRESET
Time
Description
Value
tRESET
POR_B low time at Warm reset
20 ms
7.5 Regulator control in each power mode
Table 14 shows PCA9450A regulator ON/OFF control in each power mode by default. It
can be reconfigured through I2C registers.
Table 14. PCA9450A Regulator Control summary
Power Rail
Default Voltage
OFF
SNVS
STANDBY
RUN
LDO1
NVCC_SNVS
1.8 V
OFF
ON
ON
ON
LDO2
VDD_SNVS
0.85 V
OFF
ON
ON
ON
BUCK1
VDD_SOC
0.85 V
OFF
OFF
ON
ON
BUCK3
VDD_DRAM
VDD_GPU VDD_
VPU
0.85 V
OFF
OFF
ON
ON
LDO4
PHY_0P9
0.9 V
OFF
OFF
ON
ON


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