LTC2920-1IS5 datasheet(3/16 Pages) LINER

Part #	LTC2920-1IS5

Description	Single/Dual Power Supply Margining Controller

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Manufacturer	LINER [Linear Technology]

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LTC2920-1/LTC2920-2

3

292012fa

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

temperature range, otherwise specifications are at TA = 25°C.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

IIMACCURACY

Low Range Current Accuracy

100

μA ≤ ⏐IM⏐ ≤ 167μA, (Note 6)

C-Grade

●

3

7.5

%

I-Grade

●

313

%

30

μA ≤ ⏐IM⏐ < 100μA, (Note 6)

C-Grade

●

511

%

I-Grade

●

515

%

5

μA ≤ ⏐IM⏐ < 30μA, (Note 6)

C-Grade

●

520

%

I-Grade

●

525

%

High Range Current Accuracy

1.5mA

≤ ⏐IM⏐ ≤ 2mA, (Note 7)

C-Grade

●

3

7.5

%

I-Grade

●

311

%

600

μA ≤ ⏐IM⏐ ≤ 1.5mA, (Note 7)

C-Grade

●

511

%

I-Grade

●

515

%

150

μA ≤ ⏐IM⏐ ≤ 600μA, (Note 7)

C-Grade

●

515

%

I-Grade

●

520

%

IOZ

IM1, IM2 Leakage Current

●

100

nA

CIM

Equivalent Capacitance At IM1, IM2

VIN = VOFF, (Note 5)

10

pF

VIN = VIL, High Range, (Note 5)

2

nF

VIN = VIL, Low Range, (Note 5)

30

pF

Control Inputs IN1, IN2

VIH

Control Voltage for IM Current Sinking

VCC < 2.5V

●

2.1

V

VCC ≥ 2.5V

●

2.4

V

VIL

Control Voltage for IM Current Sourcing

●

0.6

V

VOFF

Control Voltage for IM Current Off

●

1.1

1.4

V

VOZ

Control Voltage when Left Floating

1.2

V

RIN

IN1, IN2 Input Resistance

●

512

20

k

Ω

IFLT

Maximum Allowed Leakage at IN1, IN2

●

–10

10

μA

for IM Current Off

Switching Characteristics

VIN(DELAYON)

IM1, IM2 Turn-On Time

VIN Transitions from VOFF to

●

15

100

μs

VIH or VIL

VIN(DELAYOFF)

IM1, IM2 Turn-Off Time

VIN Transitions from

●

15

100

μs

VIH or VIL to VOFF

IM(ON)

IM1 Rise Time

⏐IM⏐ 5% to 95%, (Note 5)

5

μs

IM(OFF)

IM1 Fall Time

⏐IM⏐ 95% to 5%, (Note 5)

0.3

μs

Note 1: Absolute Maximum Ratings are those values beyond which the life

of a device may be impaired.

Note 2: VCC must always be above the maximum of IM1 and IM2 less 0.2V.

See Preventing Potential Power Supply Overvoltages in the Applications

Information section.

Note 3: VM compliance is the voltage range within which IM1 and IM2 are

guaranteed to be sourcing or sinking current. IM accuracy will vary within

this range.

Note 4: Consult LTC Marketing for parts specified with wider IM current

limits.

Note 5: Determined by design, not production tested.

Note 6:

⏐1 – (IM – RS)⏐ • 100%; VCC ≤ 4V: 0.58 ≤ VM ≤ (VCC – 1.1);

VCC > 4V: 0.58 ≤ VM ≤ (VCC – 1.4); CRS ≤ 20pF

Note 7:

⏐1 – (IM • RS / 30)⏐ • 100%; 0.79 ≤ VM ≤ (VCC – 0.6);

CRS ≤ 20pF

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