LTC2919CMS-2.5-PBF データシートの表示（PDF） - Linear Technology

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LTC2919CMS-2.5-PBF

Precision Triple/Dual Input UV, OV and Negative Voltage Monitor

Linear Technology 

LTC2919

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

temperature range, otherwise specifications are at TA = 25°C. VCC = 2.5V (LTC2919-2.5), VCC = 3.3V (LTC2919-3.3), VCC = 5V

(LTC2919-5), ADJ1 = ADJ2 = 0.55V, SEL = floating, unless otherwise noted. (Note 2)

SYMBOL

ISEL(Z)

ISEL

PARAMETER

Allowable Leakage When Open

SEL Input Current

CONDITIONS

SEL = VCC or SEL = GND

MIN TYP MAX UNITS

●

±5

μA

●

±17

±25

μA

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: VCC maximum pin voltage is limited by input current. Since the

VCC pin has an internal 6.5V shunt regulator, a low impedance supply

which exceeds 6V may exceed the rated terminal current. Operation

from higher voltage supplies requires a series dropping resistor. See

Applications Information.

Note 4: Threshold voltages have no hysteresis unless the part is in

comparator mode. Hysteresis is one-sided, affecting only invalid-to-valid

transitions. See Applications Information.

TYPICAL PERFOR A CE CHARACTERISTICS TA = 25°C unless otherwise noted.

ADJ Threshold Voltage

vs Temperature

508

506

504

502

500

498

496

494

492

–50 –25

0 25 50 75 100 125 150

TEMPERATURE (°C)

2919 G01

VCC UVLO Threshold Variation

vs Temperature

1.5

1.0

0.5

0

–0.5

–1.0

–1.5

–50 –25

0 25 50 75 100 125 150

TEMPERATURE (°C)

2919 G02

REF Output Voltage

vs Temperature

1.015

IREF = 0A

1.010

1.005

1.000

0.995

0.990

0.985

–50 –25

0 25 50 75 100 125 150

TEMPERATURE (°C)

2919 G03

REF Output Load Regulation

0.6

VCC = 2.5V

0.4

TA = 150°C

0.2

TA = 25°C

0.0

TA = 125°C

–0.2

TA = –40°C

–0.4

REF Output Line Regulation

0.6

IREF = 0A

0.4

TA = 150°C

0.2

0.0

TA = 125°C

–0.2

–0.4

TA = 25°C

TA = –40°C

Quiescent Supply Current

vs Temperature

90

ADJ1 = 0.55V

80

ADJ2 = 0.45V

SEL = OPEN

70

VCC = 5V

60

VCC = 3.3V

50

VCC = 2.5V

40

30

–0.6

–1

–0.5

0

0.5

LOAD CURRENT (mA)

1

2919 G04

–0.6

2

3

4

5

SUPPLY VOLTAGE (V)

6

2919 G05

20

–50 –25

0 25 50 75 100 125 150

TEMPERATURE (°C)

2919 G06

2919f

4

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