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DA6021 Datasheet(PDF) 104 Page - Renesas Technology Corp

Part # DA6021
Description  HIGHLY INTEGRATED POWER MANAGEMENT IC FOR INTEL® ATOM™ Z3000 PROCESSOR
PDF  225 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

DA6021 Datasheet(HTML) 104 Page - Renesas Technology Corp

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DA6021
HIGHLY INTEGRATED POWER MANAGEMENT IC FOR
INTEL® ATOM™ Z3000 PROCESSOR
Company Confidential
Data Sheet
Version 3.A - Final
31-Jan-14
© 2014 Dialog Semiconductor GmbH
104 of 224
www.dialog-semiconductor.com
Power Rail VSYS_SX
11.6.8
VSYSU is the voltage rail that sources power of VSYS through an external power switch. This power domain is
used to source the vibra. The external power switch is generated via a P-channel FET.
DA6021 provides an enable signal VSYSSX_EN_B, supplied by VSYS, driving the gate of the external FET.
DA6021 provides also a feedback input signal VSYSSX_FB to control the slew rate and limit the inrush current
Register Name
VSYSSX_CTRL
Address
0x63
Page 1
Read/Write
Reset Value
0x02
MSB
LSB
R
R
R
R
R
R
R/W
R/W
Reserved
VSYSSX
_SEL
VSYSSX
_EN
VSYSSX_EN
0
1
VSYSSX_EN_B set to high
VSYSSX_EN_B set to low
VSYSSX_SEL
0
1
VSYSSX_EN_B controlled by SLP_S0iX_B according to sequencing
VSYSSX_EN_B controlled by VSYSSX_CTRL.VSYSSX_EN bit
Regardless of VSYSSX_EN and VSYSSX_SEL, VSYSSX_EN_B is
high when SLP_S3_B is asserted, means low
VSYSSX_CTRL.
SLP_S3_B
VSYSSX_EN_B
VSYSSX_SEL
VSYSSX_EN
1
0
1
High
1
1
1
Low
x
x
0
High
Table 64: VSYSSX_EN_B Truth Table
VSYS_SX external P-channel power switch parameters:
Rdson (Vgs=3.7V)
15-35mohm
Input capacitance, Ciss
750-2315pF
Output capacitance, Coss
265-900pF
Reverse transfer capacitance, Crss
240-800pF



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