LTC2901-1IGN datasheet(2/16 Pages) LINER

2 / 16 page

LTC2901

2901is sn2901

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VRT50

5V, 5% Reset Threshold

V1 Input Threshold

4.600

4.675

4.750

VRT33

3.3V, 5% Reset Threshold

V1, V2 Input Threshold

3.036

3.086

3.135

VRT30

3V, 5% Reset Threshold

V2 Input Threshold

2.760

2.805

2.850

VRT25

2.5V, 5% Reset Threshold

V2, V3 Input Threshold

2.300

2.338

2.375

VRT18

1.8V, 5% Reset Threshold

V3, V4 Input Threshold

1.656

1.683

1.710

VRT15

1.5V, 5% Reset Threshold

V3, V4 Input Threshold

1.380

1.403

1.425

VRTA

ADJ Reset Threshold

V3, V4 Input Threshold

0.492

0.500

0.508

VRTAN

– ADJ Reset Threshold

V4 Input Threshold

–18

VCC

Minimum Internal Operating Voltage

RST, COMPX in Correct Logic State;

VCC Rising Prior to Program

VCCMINP

Minimum Required for Programming

VCC Rising

2.42

VCCMINC

Minimum Required for Comparators

VCC Falling

2.32

VREF

Reference Voltage

VCC ≥ 2.3V, IVREF = ±1mA, CREF ≤ 1000pF

1.192

1.210

1.228

VPG

Programming Voltage Range

VCC ≥ VCCMINP

0VREF

IVPG

VPG Input Current

VPG = VREF

±20

IV1

V1 Input Current

V1 = 5V, IVREF = 12µA, (Note 4)

µA

IV2

V2 Input Current

V2 = 3.3V

0.8

µA

IV3

V3 Input Current

V3 = 2.5V

0.52

1.2

µA

V3 = 0.55V (ADJ Mode)

–15

IV4

V4 Input Current

V4 = 1.8V

0.34

0.8

µA

V4 = 0.55V (ADJ Mode)

–15

V4 = –0.05V (–ADJ Mode)

–15

ICRT(UP)

CRT Pull-Up Current

VCRT = 0V

–1.4

–2

–2.6

µA

ICRT(DN)

CRT Pull-Down Current

VCRT = 1.3V

µA

tRST

Reset Time-Out Period

CRT = 1500pF

4.9

6.9

8.9

ORDER PART

NUMBER

GN16 PART MARKING

29011

29012

29011I

29012I

TJMAX = 125°C, θJA = 130°C/W

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)

(Notes 1, 2, 3)

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

RST (LTC2901-1)........................................ – 0.3V to 7V

RST (LTC2901-2).......................... – 0.3V to (V2 + 0.3V)

COMPX ....................................................... – 0.3V to 7V

CWT, WDO .................................................. – 0.3V to 7V

VREF, CRT, WDI ............................ – 0.3V to (VCC + 0.3V)

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

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

Operating Temperature Range

LTC2901-1C/LTC2901-2C ....................... 0

°C to 70°C

LTC2901-1I/LTC2901-2I .................... –40

°C to 85°C

Storage Temperature Range .................. – 65

°C to 150°C

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

°C

LTC2901-1CGN

LTC2901-2CGN

LTC2901-1IGN

LTC2901-2IGN

ABSOLUTE

AXI U

RATI GS

PACKAGE/ORDER I FOR ATIO

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

ELECTRICAL CHARACTERISTICS

GN PACKAGE

16-LEAD PLASTIC SSOP

TOP VIEW

COMP3

COMP1

CRT

RST

WDO

WDI

COMP2

COMP4

VREF

VPG

GND

CWT

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