Datasheet

 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
V
RGOUT Regulator Output Voltage — 1.8 — V
VBG Internal Band Gap Reference 1.14 1.2 1.26 V
C
EFC External Filter Capacitor Value 4.7 10 — F Series resistance < 3 Ohm
recommended; < 5 Ohm
required.
T
VREG —10—sVREGS = 1 with any POR or BOR
TBG Band Gap Reference Start-up
Time
—1—ms
V
LVR Low-Voltage Regulator Output
Voltage
— 1.2 — V RETEN = 1, LPCFG = 0
TABLE 32-12: VBAT OPERATING VOLTAGE SPECIFICATIONS
Param
No.
Symbol Characteristic Min Typ Max Units Comments
V
BT Operating Voltage 1.8 — 3.6 V Battery connected to the VBAT pin
V
BTADC VBAT A/D Monitoring
Voltage Specification
(1)
1.6 — 3.6 V 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 = ((V
BAT/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  T
A  +85°C for Industrial
Param
No.
Sym Characteristic Min Typ
(1)
Max Units Comments Conditions
I
OUT1 CTMU Current
Source, Base Range
— 550 — nA CTMUICON<1:0> = 00
2.5V < V
DD < VDDMAX
IOUT2 CTMU Current
Source, 10x Range
—5.5—A CTMUICON<1:0> = 01
I
OUT3 CTMU Current
Source, 100x Range
—55—A CTMUICON<1:0> = 10
I
OUT4 CTMU Current
Source, 1000x Range
— 550 — A CTMUICON<1:0> = 11
(2)
V Voltage Change per
Degree Celsius
—3—mV/°C
Note 1: Nominal value at center point of current trim range (CTMUICON<7:2> = 000000).
2: Do not use this current range with temperature sensing diode.