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LTC2995C

Temperature Sensor and Dual Voltage Monitor with Alert Outputs

Linear Technology 

LTC2995

ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C, VCC = 3.3V, unless otherwise noted.

SYMBOL PARAMETER

CONDITIONS

MIN TYP MAX

UNITS

Tconv

Temperature Update Interval

KT

VPTAT Slope

VPTAT Load Regulation

Tint

Internal Temperature Accuracy

TRMT

Remote Temperature Error, η = 1.004

Ideality Factor η = 1.004

ILOAD = ±200μA

TAMB = –40°C to 125°C

0°C to 85°C (Notes 3, 4)

–40°C to 0°C (Notes 3, 4)

85°C to 125°C (Notes 3, 4)

l

3.5

5

ms

4

mV/K

±1.5

mV

±0.5

±1

°C

±2

°C

±0.25 ±1

°C

±0.25 ±1.5

°C

±0.25 ±1.5

°C

Temperature Noise

TVCC

Temperature Error vs Supply

TRS

Series Resistance Cancellation Error

Temperature and Voltage Monitoring

RSERIES = 100Ω

0.15

°CRMS

0.01

°CRMS/√Hz

l

±0.5

°C/V

l

±0.25 ±1

°C

VUOT

Undervoltage/Overvoltage Threshold

l 492

500

508

mV

TOFF

VT1, VT2 Offset

l –3

–1

1

°C

ΔTHYST

VT1, VT2 Temperature Hysteresis

l

2

5

10

°C

tUOD

UV, OV

Input 5mV Above/Below Threshold

l

0.5

2

ms

IIN

tUOTO

VH1, VL1, VH2, VL2, VT1, VT2, Input Current

UV/OV Time-Out-Period

CTMR = TMR Open

CTMR = 1nF

l

±20

nA

0.5

ms

l

5

10

20

ms

ITMR

TMR Current

l

±2.5

μA

Three State Pins DS, PS

VDS,PS(H,TH) PS, DS Input High Threshold

VDS,PS(H,TL) PS, DS Input Low Threshold

IDS,PS(IN,HL) PS, DS High, Low Input Current

IDS,PS(IN,Z) Allowable Leakage Current

Digital Outputs

DS, PS at 0V or VCC

l VCC – 0.4

l 0.1

l

l

VCC – 0.1

V

0.4

V

±4

μA

±1

μA

VOH

High Level Output Voltage,

TO1, TO2, UV, OV

I = –0.5μA

l VCC – 1.2

V

VOL

Low Level Output Voltage,

TO1, TO2, UV, OV

I = 3mA

l

0.4

V

Note 1: Stresses beyond those listed under Absolute Maximum Ratings

may cause permanent damage to the device. Exposure to any Absolute

Maximum Rating condition for extended periods may affect device

reliability and lifetime.

Note 2: All currents into pins are positive; all voltages are referenced to

GND unless otherwise noted.

Note 3: Remote diode temperature, not LTC2995 temperature.

Note 4: Guaranteed by design and test correlation.

2995f

3

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