LTC2992 datasheet(5/46 Pages) LINER

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LTC2992

Rev A

For more information www.analog.com

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

ground, unless otherwise noted.

Note 3: An internal shunt regulator limits the INTVCC pin to a minimum of

5.8V. Driving this pin to voltages beyond 5.8V may damage the part. This

pin can be safely tied to higher voltages through a resistor that limits the

current below 35mA.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VOD(OL)

SDAO, SDAO, Output Low Voltage

ISDAO, ISDAO = 8mA

0.15

0.4

ISDA,SCL(IN)

SDAI, SDAO, SDAO, SCL Leakage Current

SDAI, SDAO, SDAO, SCL = 5V

±1

VSDA,SCL(TH)

SDAI, SCL Input Threshold

1.5

1.8

2.1

VSDA,SCL(CL)

SDAI, SCL Clamp Voltage

ISDAI, ISCL = 0.5mA, 5mA

5.9

6.9

I2C Interface Timing

fSCL(MAX)

Maximum SCL Clock Frequency

400

kHz

tLOW

SCL Low Period

0.65

1.3

tHIGH

SCL High Period

600

tBUF(MIN)

Bus Free Time Between STOP/START

Condition

0.12

1.3

tHD, STA(MIN)

Hold Time after (Repeated) START Condition

140

600

tSU, STA(MIN)

Repeated START Condition Setup Time

600

tSU, STO(MIN)

STOP Condition Setup Time

600

tHD, DATI(MIN)

Data Hold Time Input

−100

tHD, DATO(MIN)

Data Hold Time Output

300

600

900

tSU, DAT(MIN)

Data Setup Time

100

tSP(MAX)

Maximum Suppressed Spike Pulse Width

110

250

tRST

Stuck Bus Reset Time

SCL or SDAI Held Low

SCL, SDAI Input Capacitance (Note 5)

Note 4: Internal clamps limit the SCL and SDAI pins to a minimum of

5.9V. Driving these pins to voltages beyond the clamp may damage the

part. The pins can be safely tied to higher voltages through resistors that

limit the current below 5mA.

Note 5: Guaranteed by design and not subjected to test.

Note 6: ∆SENSE is defined as VSENSE+ – VSENSE–

Note 7: TUE is the maximum ADC error for any code expressed as a

percentage of full-scale.

ELECTRICAL CHARACTERISTICS The

denotes the specifications which apply over the full operating

junction temperature range, otherwise specifications are at TA = 25°C. VDD is from 3V to 100V unless otherwise noted. (Note 2)

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