LTC2902 Просмотр технического описания (PDF) - Linear Technology

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LTC2902

Programmable Quad Supply Monitor with Adjustable Reset Timer and Supply Tolerance

Linear Technology 

LTC2902

ABSOLUTE AXI U RATI GS

(Notes 1, 2, 3)

V1, V2, V3, V4, VPG ..................................... – 0.3V to 7V

RST (LTC2902-1)........................................ – 0.3V to 7V

RST (LTC2902-2).......................... – 0.3V to (V2 + 0.3V)

COMPX, RDIS ............................................. – 0.3V to 7V

T0, T1 .......................................... – 0.3V to (VCC + 0.3V)

CRT ............................................. – 0.3V to (VCC + 0.3V)

VREF ............................................. – 0.3V to (VCC + 0.3V)

Reference Load Current (IVREF) ............................ ±1mA

V4 Input Current (– ADJ Mode) ............................ –1mA

Operating Temperature Range

LTC2902-1C/LTC2902-2C ....................... 0°C to 70°C

LTC2902-1I/LTC2902-2I .................... –40°C to 85°C

Storage Temperature Range .................. – 65°C to 150°C

Lead Temperature (Soldering, 10 sec)................... 300°C

UW U

PACKAGE/ORDER I FOR ATIO

TOP VIEW

COMP3 1

COMP1 2

V3 3

V1 4

CRT 5

RST 6

T0 7

RDIS 8

16 COMP2

15 COMP4

14 V2

13 V4

12 VREF

11 VPG

10 GND

9 T1

GN PACKAGE

16-LEAD PLASTIC SSOP

TJMAX = 125°C, θJA = 130°C/W

ORDER PART

NUMBER

LTC2902-1CGN

LTC2902-2CGN

LTC2902-1IGN

LTC2902-2IGN

GN16 PART MARKING

29021

29022

29021I

29022I

Consult LTC Marketing for parts specified with wider operating temperature ranges.

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

temperature range, otherwise specifications are at TA = 25°C. VCC = 5V, unless otherwise noted. (Note 3)

SYMBOL PARAMETER

CONDITIONS

MIN TYP MAX UNITS

VRT50

5V, 5% Reset Threshold

5V, 7.5% Reset Threshold

5V, 10% Reset Threshold

5V, 12.5% Reset Threshold

V1 Input Threshold

q 4.600 4.675 4.750

V

q 4.475 4.550 4.625

V

q 4.350 4.425 4.500

V

q 4.225 4.300 4.375

V

VRT33

3.3V, 5% Reset Threshold

3.3V, 7.5% Reset Threshold

3.3V, 10% Reset Threshold

3.3V, 12.5% Reset Threshold

V1, V2 Input Threshold

q 3.036 3.086 3.135

V

q 2.954 3.003 3.053

V

q 2.871 2.921 2.970

V

q 2.789 2.838 2.888

V

VRT30

3V, 5% Reset Threshold

3V, 7.5% Reset Threshold

3V, 10% Reset Threshold

3V, 12.5% Reset Threshold

V2 Input Threshold

q 2.760 2.805 2.850

V

q 2.685 2.730 2.775

V

q 2.610 2.655 2.700

V

q 2.535 2.580 2.625

V

VRT25

2.5V, 5% Reset Threshold

2.5V, 7.5% Reset Threshold

2.5V, 10% Reset Threshold

2.5V, 12.5% Reset Threshold

V2, V3 Input Threshold

q 2.300 2.338 2.375

V

q 2.238 2.275 2.313

V

q 2.175 2.213 2.250

V

q 2.113 2.150 2.188

V

VRT18

1.8V, 5% Reset Threshold

1.8V, 7.5% Reset Threshold

1.8V, 10% Reset Threshold

1.8V, 12.5% Reset Threshold

V3, V4 Input Threshold

q 1.656 1.683 1.710

V

q 1.611 1.638 1.665

V

q 1.566 1.593 1.620

V

q 1.521 1.548 1.575

V

VRT15

1.5V, 5% Reset Threshold

1.5V, 7.5% Reset Threshold

1.5V, 10% Reset Threshold

1.5V, 12.5% Reset Threshold

V3, V4 Input Threshold

q 1.380 1.403 1.425

V

q 1.343 1.365 1.388

V

q 1.305 1.328 1.350

V

q 1.268 1.290 1.313

V

VRTA

ADJ, 5% Reset Threshold

ADJ, 7.5% Reset Threshold

ADJ, 10% Reset Threshold

ADJ, 12.5% Reset Threshold

V3, V4 Input Threshold

q 0.492 0.500 0.508

V

q 0.479 0.487 0.494

V

q 0.466 0.473 0.481

V

q 0.453 0.460 0.467

V

2902f

2

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