MMPF0100 datasheet(26/136 Pages) FREESCALE

Part #	MMPF0100

Description	14 Channel Configurable Power Management Integrated Circuit

PDF	136 Pages

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Manufacturer	FREESCALE [Freescale Semiconductor, Inc]

Direct Link	http://www.freescale.com

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26 / 136 page

VINREFDDR

VREFDDR

VINREFDDR

CHALF1

Discharge

VHALF

VREFDDR

CHALF2

100 nf

CREFDDR

1.0 uf

Analog Integrated Circuit Device Data

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

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.

MMPF0100 Datasheet(PDF) 26 Page - Freescale Semiconductor, Inc

MMPF0100 Datasheet(HTML) 26 Page - Freescale Semiconductor, Inc

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