MMPF0100 datasheet(26/137 Pages) NXP

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NXP Semiconductors

PF0100

FUNCTIONAL BLOCK REQUIREMENTS AND BEHAVIORS

6.3.2.1

VREFDDR control register

The VREFDDR voltage reference is controlled by a single bit in VREFDDCRTL register in Table 20.

6.3.2.1.1

External components

6.3.2.1.2

VREFDDR specifications

Table 20. 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 21. VREFDDR external components(33)

Capacitor

Capacitance (

μF)

VINREFDDR(34) to VHALF

0.1

VHALF to GND

0.1

VREFDDR

1.0

Notes

33.

Use X5R or X7R capacitors.

34.

VINREFDDR to GND, 1.0

μF minimum capacitance is provided by buck regulator output.

Table 22. VREFDDR electrical characteristics

TMIN to TMAX (See Table 3), VIN = 3.6 V, IREFDDR = 0.0 mA, VINREFDDR = 1.5 V and typical external component values, unless otherwise

noted. Typical values are characterized at VIN = 3.6 V, IREFDDR = 0.0 mA, VINREFDDR = 1.5 V, and 25 °C, unless otherwise noted.

Symbol

Parameter

Min.

Typ.

Max.

Unit

Notes

VREFDDR

VINREFDDR

Operating input voltage range

1.2

–

1.8

IREFDDR

Operating load current range

0.0

–

IREFDDRLIM

Current limit

• IREFDDR when VREFDDR is forced to VINREFDDR/4

10.5

IREFDDRQ

Quiescent Current

–

8.0

–

μA

(35)

Active mode – DC

VREFDDR

Output voltage

• 1.2 V < VINREFDDR < 1.8 V

• 0.0 mA < IREFDDR < 10 mA

–VINREFDDR/2

–

VREFDDRTOL

Output voltage tolerance (TA = -40 °C to 85 °C)

• 1.2 V < VINREFDDR < 1.8 V

• 0.6 mA

≤ IREFDDR ≤ 10 mA

–1.0

–

1.0

VREFDDRTOL

Output voltage tolerance (TA = -40 °C to 105 °C), applicable only

to the extended industrial version

• 1.2 V < VINREFDDR < 1.8 V

• 0.6 mA

≤ IREFDDR ≤ 10 mA

–1.2

–

1.2

VREFDDRLOR

Load regulation

• 1.0 mA < IREFDDR < 10 mA

• 1.2 V < VINREFDDR < 1.8 V

–0.40–

mV/mA

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