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MMPF0100 Fiches technique(PDF) 26 Page - Freescale Semiconductor, Inc

No de pièce MMPF0100
Description  14 Channel Configurable Power Management Integrated Circuit
PDF  136 Pages
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Fabricant  FREESCALE [Freescale Semiconductor, Inc]
Site Internet  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

MMPF0100 Fiches technique(HTML) 26 Page - Freescale Semiconductor, Inc

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VINREFDDR
VREFDDR
VINREFDDR
CHALF1
Discharge
+
_
VHALF
VREFDDR
CHALF2
100 nf
100 nf
CREFDDR
1.0 uf
Analog Integrated Circuit Device Data
26
Freescale Semiconductor
PF0100
Functional Block Requirements and Behaviors
Bias and References Block Description
Figure 6. VREFDDR Block Diagram
7.3.2.1
VREFDDR Control Register
The VREFDDR voltage reference is controlled by a single bit in VREFDDCRTL register in Table 19.
External Components
Table 19. Register VREFDDCRTL - ADDR 0x6A
Name
Bit #
R/W
Default
Description
UNUSED
3:0
–
0x00
UNUSED
VREFDDREN
4
R/W
0x00
Enable or disables VREFDDR output voltage
0 = VREFDDR Disabled
1 = VREFDDR Enabled
UNUSED
7:5
–
0x00
UNUSED
Table 20. VREFDDR External Components(22)
Capacitor
Capacitance (
μF)
VINREFDDR(23) to VHALF
0.1
VHALF to GND
0.1
VREFDDR
1.0
Notes
22.
Use X5R or X7R capacitors.
23.
VINREFDDR to GND, 1.0
μF minimum
capacitance is provided by buck regulator output.



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