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PCA9450 Scheda tecnica(PDF) 40 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
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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
40 / 96
0x13 – BUCK2CTRL
Reset Type
O
Bit
Name
Type
Reset Description
1:0
B2_ENMODE
R/W
10
BUCK2 enable mode
00b = OFF
01b = ON by PMIC_ON_REQ = H
10b = ON by PMIC_ON_REQ = H && PMIC_STBY_REQ = L
11b = Always ON
8.2.20 0x14 BUCK2OUT_DVS0
BUCK2 DVS output voltage at PMIC_STBY_REQ = L
Table 40. 0x14 BUCK2OUT_DVS0
0x14 – BUCK2OUT_DVS0
Reset Type
O
Bit
Name
Type
Reset Description
7
RSVD
R/W
0
Reserved
6:0
B2_DVS0
R/W
001
0100
BUCK2 DVS0 Output voltage
Programmable from 0.60 V to 2.1875 V in 12.5 mV step. Table 45
Default = 0.85 V
8.2.21 0x15 BUCK2OUT_DVS1
BUCK2 DVS output voltage at PMIC_STBY_REQ = H
Table 41. 0x15 BUCK2OUT_DVS1
0x15 – BUCK2OUT_DVS1
Reset Type
O
Bit
Name
Type
Reset Description
7
RSVD
R/W
0
Reserved
6:0
B2_DVS1
R/W
001
0100
BUCK2 DVS1 Output voltage
Programmable from 0.60 V to 2.1875 V in 12.5 mV step. Table 45
Default = 0.85 V
8.2.22 0x16 BUCK3CTRL
BUCK3 control register for Ramp, DVS control, Active discharge, FPWM and Enable.
The registers related to BUCK3 are only for PCA9450A.
Table 42. 0x16 BUCK3CTRL
0x16 – BUCK3CTRL
Reset Type
O
Bit
Name
Type
Reset Description
7:6
RAMP
R/W
01
BUCK3 DVS speed
00b = 25 mV / 1 μs
01b = 25 mV / 2 μs
10b = 25 mV / 4 μs
11b = 25 mV / 8 μs
5
RSVD
R/W
0
Reserved


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