UCD3138128APFC datasheet(13/83 Pages) TI1

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UCD3138128A

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SLUSC99 – JULY 2016

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Electrical Characteristics (continued)

V33A = V33D = V33DIO = 3 V to 3.6 V; 1 μF from BP18 to DGND, TJ = –40°C to 125°C (unless otherwise noted)

PARAMETER

TEST CONDITION

MIN

TYP

MAX

UNIT

(5)

Ambient temperature offset value from the TEMPSENCTRL register should be used to meet accuracy.

(6)

Available from reference DACs for comparators D, E, F and G.

(7)

Performance dependent on selected external components. The maximum frequency should be no more than 12 MHz.

POWER ON RESET AND BROWN OUT (V33A PIN)

VGH

Voltage good High

See Figure 9

2.302

2.53

2.836

VGL

Voltage good Low

2.248

2.48

2.781

Vres

Voltage at which IReset signal is valid(1)

0.8

Brownout

Internal signal warning of brownout

conditions

2.774

2.9

3.077

TEMPERATURE SENSOR

VTEMP

Voltage range of sensor(1)

1.46

2.44

Voltage resolution(1)

Volts/°C

6.3

mV/ºC

Temperature resolution(1)

Degree C per bit

0.0969

ºC/LSB

Accuracy(1)(5)

-40°C to 125°C

–10

±5

ºC

Temperature range(1)

-40°C to 125°C

–40

125

ºC

ITEMP

Current draw of sensor when active(1)

μA

VAMB

Ambient temperature

Trimmed 25°C reading

1.858

1.9

1.954

ANALOG COMPARATOR

DAC

Reference DAC Range(1)

0.019

2.5

Reference Voltage

2.478

2.5

2.513

Bits

bits

INL(1)

–0.5

0.21

LSB

DNL(1)

0.06

0.12

LSB

Offset

–5.5

19.5

Reference DAC buffered output load(6)

-0.5

Buffer offset (-0.5 mA)

0.156V<DAC<2.363V

-10

Buffer offset (1.0 mA)

0.059V<DAC<2.305V

-10

RTC INTERFACE

fRTC

RTC external input frequency (7)

MHz

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