LTC2964 datasheet(7/20 Pages) AD

7 / 20 page

LTC2962/LTC2963/LTC2964

Rev 0

For more information www.analog.com

TYPICAL PERFORMANCE CHARACTERISTICS

Reset Timeout Period vs

Capacitance

Reset Timeout Period vs

Temperature

Reset Timeout Period vs

Temperature

Watchdog Timeout Period vs

Capacitance

Watchdog Timeout Period vs

Temperature

Watchdog Timeout Period vs

Temperature

Transient Duration vs Comparator

Overdrive

RST, WDO, OUTn VOL vs

Pull-Down Current

RT CAPACITANCE, CRT (nF)

0.001

0.01

0.1

100

1000

0.0001

0.001

0.01

0.1

296234 G10

CRT = 1.5nF

TEMPERATURE (°C)

–50 –25

100 125

17.6

17.7

17.8

17.9

18.0

18.1

18.2

18.3

18.4

296234 G11

VRT = VCC, INTERNAL TIMER

TEMPERATURE (°C)

–50 –25

100 125

199.6

199.7

199.8

199.9

200.0

200.1

200.2

200.3

200.4

296234 G12

WT CAPACITANCE, CWT (nF)

0.001

0.01

0.1

100

0.001

0.01

0.1

296234 G13

VWT = VCC, INTERNAL TIMER

TEMPERATURE (°C)

–50 –25

100 125

1.62

1.63

1.64

1.65

1.66

1.67

1.68

1.69

1.70

296234 G15

RESET OCCURS ABOVE CURVE

TA = 25°C

VCC = 2.25V

VCC = 5.5V

COMPARATOR OVERDRIVE (% OF VRTX)

0.1

100

0.01

0.1

296234 G16

VCC = 2.25V, NO EXTERNAL PULL–UP

TA = –40°C

TA = 25°C

TA = 125°C

IRST, IWDO, IOUTn (mA)

0.1

0.2

0.3

0.4

0.5

296234 G17

CWT = 1.5nF

TEMPERATURE (°C)

–50 –25

100 125

145

146

147

148

149

150

296234 G14

Output Logic Low, ISINK vs VCC

RST, WDO, OUTn

VOL = 0.2V

VOL = 0.4V

VCC (V)

296234 G18

LTC2964 Datasheet(PDF) 7 Page - Analog Devices

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