LTC2935IDC-3-TRPBF Просмотр технического описания (PDF) - Linear Technology

Номер в каталоге

Компоненты Описание

производитель

LTC2935IDC-3-TRPBF

Ultra-Low Power Supervisor with Power-Fail Output, Selectable Thresholds

Linear Technology 

LTC2935

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

temperature range, otherwise specifications are at TA = 25°C, VCC = 3.6V, unless otherwise noted. (Note 2)

SYMBOL PARAMETER

CONDITIONS

MIN TYP MAX UNITS

Reset and Power-Fail Outputs: RST, PFO

VOL

Voltage Output Low

VCC = 1V, 200μA Pull-Up Current

VCC = 3V, 3mA Pull-Up Current

S2, S1, S0 = Low

l

25 100

mV

l

50 150

mV

VOH

Voltage Output High (LTC2935-2)

IOH

Current Output High, Leakage (LTC2935-1)

tRST

Reset Timeout Period

–200μA Pull-Down Current

VRST, VPFO = 3.6V

l 0.7 • VCC

V

l

±1 ±10

nA

l 140 200 260

ms

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.

TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted.

Supply Current vs Supply Voltage

1000

S0 = S1 = S2 = GND

800

85°C

600

25°C

400

–40°C

200

Normalized Reset and Power-Fail

Thresholds vs Temperature

1.015

1.010

1.005

1.000

0.995

0.990

Comparator Undervoltage

Glitch Immunity

3.0

VCC = 3.6V

2.5

2.0

COMPARATORS PULL DOWN

ABOVE CURVE

1.5

1.0

0.5

0

01

2

3

4

VCC (V)

Reset Timeout Period

vs Temperature

260

VCC = 3.6V

240

220

200

180

160

56

2935 G01

0.985

–50 –25 0

25 50

TEMPERATURE (°C)

75 100

2935 G02

Voltage Output Low vs Pull-Up

Current (RST, PFO)

100

VCC = 3V

85°C

80

25°C

60

–40°C

40

20

0

0.1

1

10

100

COMPARATOR OVERDRIVE (%)

2935 G03

Voltage Output High vs Pull-Down

Current (RST, PFO)

3.6

LTC2935-2

VCC = 3.6V

3.5

–40°C

3.4

25°C

3.3

85°C

140

–50 –25 0

25 50

TEMPERATURE (°C)

75 100

2935 G04

4

0

0

1

2

3

4

5

PULL-UP CURRENT (mA)

2935 G05

3.2

0

–0.2 –0.4 –0.6 –0.8 –1

PULL-DOWN CURRENT (mA)

2935 G06

2935fa

Share Link: