LT2940CMS datasheet(3/24 Pages) LINER

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LT2940

2940f

ELECTRICAL CHARACTERISTICS

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Supply

VCC

Supply Voltage Operating Range

680

ICC

Supply Current

IPMON = +200μA, IIMON = +200μA

(Note 2)

3.5

VCC(UVLC)

Supply Undervoltage Latch Clear

VCC Falling

2.3

2.5

2.7

ΔVCC(HYST)

Supply Undervoltage Hysteresis

VCC Rising

100

Voltage Sense

VVSEN(OR)

Voltage Sense Pin Operating Range

VCC ≤ 12V

–0.1

VCC – 3

12V < VCC < 30V

–0.1

V+ Pin and V– Pin

VCC ≥ 30V

–0.1

Voltage Sense Differential Input Voltage Range

(Note 5)

VCC < 11V

±(VCC – 3)

VV = VV+ – VV–

VCC ≥ 11V

±8

VV(CL)

Voltage Sense Differential Clipping Limit

(Note 5)

VCC ≥ 12V

±9

IVSEN

Voltage Sense Input Bias Current

V+ Pin and V– Pin

–300

–100

100

ΔIVSEN

Voltage Sense Input Offset Current

ΔIVSEN = IV+ – IV–

VV+ = VV–

±50

±150

Current Sense

VISEN(OR)

Current Sense Pin Operating Range

I+ Pin and I– Pin

480

Current Sense Differential Input Voltage

Range (Note 6)

VI = VI+ – VI–

±200

VI(CL)

Current Sense Differential Clipping Limit

(Note 6)

±225

IISEN

Current Sense Input Bias Current

I+ Pin and I– Pin

100

125

μA

ΔIISEN

Current Sense Input Offset Current

ΔIISEN = II+ – II–

VI+ = VI–

±200

±800

Power Monitor (Note 2)

IPMON(OR)

Power Monitor Output Current Operating

Range

±200

μA

IPMON(CAPA)

Power Monitor Output Current Capability

VCC ≥ 12V, VPMON ≥ 0V, and

VV = –9V, VI = –225mV, or

VV = 9V, VI = 225mV

900

1200

μA

VCC ≥ 12V, VPMON ≥ 0.5V, and

VV = –9V, VI = 225mV, or

VV = 9V, VI = –225mV

–240

–1200

μA

VCC ≥ 12V, VPMON ≥ 4V, and

VV = –9V, VI = 225mV, or

VV = 9V, VI = –225mV

–800

–1200

μA

The l denotes the speciﬁcations which apply over the full operating

temperature range, otherwise speciﬁcations are at TA = 25°C. All speciﬁcations apply at 6V ≤ VCC ≤ 80V, unless otherwise speciﬁed.

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