PIC24FJ128GA310 datasheet(367/406 Pages) MICROCHIP

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 2010-2011 Microchip Technology Inc.

DS39996F-page 367

PIC24FJ128GA310 FAMILY

TABLE 32-11: INTERNAL VOLTAGE REGULATOR SPECIFICATIONS

Operating Conditions:

-40°C < TA < +85°C (unless otherwise stated)

Param

No.

Symbol

Characteristics

Min

Typ

Max Units

Comments

VRGOUT

Regulator Output Voltage

—

1.8

—

VBG

Internal Band Gap Reference

1.14

1.2

1.26

CEFC

External Filter Capacitor Value

4.7

—

F

Series resistance < 3 Ohm

recommended; < 5 Ohm

required.

TVREG

—10

—

sVREGS = 1 with any POR or BOR

TBG

Band Gap Reference Start-up

Time

—1

—

VLVR

Low-Voltage Regulator Output

Voltage

—

1.2

—

RETEN = 1, LPCFG = 0

TABLE 32-12: VBAT OPERATING VOLTAGE SPECIFICATIONS

Param

No.

Symbol

Characteristic

Min

Typ

Max

Units

Comments

VBT

Operating Voltage

1.8

—

3.6

Battery connected to the VBAT pin

VBTADC

VBAT A/D Monitoring

Voltage Specification(1)

1.6

—

3.6

A/D monitoring the VBAT pin using

the internal A/D channel

Note 1:

Measuring the A/D value, using the A/D, is represented by the equation:

Measured Voltage = ((VBAT/2)/VDD) * 1024) for 10-bit A/D and

Measured Voltage = ((VBAT/2)VDD) * 4096) for 12-bit A/D.

TABLE 32-13: CTMU CURRENT SOURCE SPECIFICATIONS

DC CHARACTERISTICS

Standard Operating Conditions: 2V to 3.6V (unless otherwise stated)

Operating temperature -40°C

 TA  +85°C for Industrial

Param

No.

Sym

Characteristic

Min

Typ(1) Max

Units

Comments

Conditions

IOUT1 CTMU Current

Source, Base Range

—

550

—

CTMUICON<1:0> = 00

2.5V < VDD < VDDMAX

IOUT2 CTMU Current

Source, 10x Range

—5.5

—

A

CTMUICON<1:0> = 01

IOUT3 CTMU Current

Source, 100x Range

—55

—

A

CTMUICON<1:0> = 10

IOUT4 CTMU Current

Source, 1000x Range

—

550

—

A

CTMUICON<1:0> = 11(2)



Voltage Change per

Degree Celsius

—3

—

mV/°C

Note 1:

Nominal value at center point of current trim range (CTMUICON<7:2> = 000000).

Do not use this current range with temperature sensing diode.

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