LTC2935

4

2935fa

TYPICAL PERFORMANCE CHARACTERISTICS

Supply Current vs Supply Voltage

Normalized Reset and Power-Fail

Thresholds vs Temperature

Comparator Undervoltage

Glitch Immunity

Reset Timeout Period

vs Temperature

Voltage Output Low vs Pull-Up

Current (RST, PFO)

Voltage Output High vs Pull-Down

Current (RST, PFO)

0

0

200

400

600

800

1000

1

23

4

2935 G01

56

–40°C

25°C

85°C

S0 = S1 = S2 = GND

TEMPERATURE (°C)

–50

0.985

0.990

0.995

1.000

1.005

1.015

–25

025

50

2935 G02

75

100

1.010

COMPARATOR OVERDRIVE (%)

0.1

2.0

2.5

1

10

100

1.5

1.0

0.5

0

3.0

2935 G03

COMPARATORS PULL DOWN

ABOVE CURVE

TEMPERATURE (°C)

–50

140

160

180

200

220

260

–25

025

50

2935 G04

75

100

240

PULL-UP CURRENT (mA)

0

0

20

40

60

80

100

1

234

2935 G05

5

–40°C

25°C

85°C

PULL-DOWN CURRENT (mA)

0

3.2

3.3

3.4

3.5

3.6

–0.2

–0.4

–0.6

–0.8

2935 G06

–1

–40°C

25°C

85°C

LTC2935-2

ELECTRICAL CHARACTERISTICS

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Reset and Power-Fail Outputs: RST, PFO

Voltage Output Low

S2, S1, S0 = Low

l

l

25

50

100

150

mV

mV

Voltage Output High (LTC2935-2)

–200μA Pull-Down Current

V

Current Output High, Leakage (LTC2935-1)

l

±1

±10

nA

Reset Timeout Period

l

140

200

260

ms

The

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

GND unless otherwise noted.

Note 3. Guaranteed by design. Characterized, but not production tested.