LTC1921

3

1921f

Supply Current vs Supply Voltage

Undervoltage Threshold

vs Temperature

Supply Current vs Temperature

Undervoltage Recovery Threshold

vs Temperature

Overvoltage Threshold

vs Temperature

Overvoltage Hysteresis

vs Temperature

Note 1: Absolute Maximum Ratings are those values beyond which the life

of a device may be impaired.

Note 2: Transient voltage for less than 10

µs. This parameter is not 100%

tested. Voltage should not exceed 200V between any two pins.

Note 3: The LTC1921C and LTC1921I are guaranteed functional over the

operating temperature range of –40

°C to 85°C.

FUSE B = –48V, unless otherwise noted.

Note 4: The LTC1921C is guaranteed to meet specified performance from

0

°C to 70°C. The LTC1921C is designed, characterized and expected to

meet specified performance from –40

°C to 85°C but is not tested or QA

sampled at these temperatures. The LTC1921I is guaranteed to meet

specified performance from –40 t0 85

°C.

Note 5: All currents into device pins are positive; all currents out of device

pins are negative. All voltages are referenced to RTN unless otherwise

specified.

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Output Switch Off Leakage

500

pA

Output Switch Resistance in Undervoltage Lockout,

q

60

Ω

OUT F, OUT A, OUT B

q

80

Ω

q

80

Ω

ELECTRICAL CHARACTERISTICS

TYPICAL PERFOR A CE CHARACTERISTICS

SUPPLY VOLTAGE (V)

0

400

350

300

250

200

150

100

50

0

80

1921 G01

20

40

60

100

70

10

30

50

90

TEMPERATURE (

°C)

–50

100

120

140

90

1921 G02

80

60

0

–30

–10

10

30

50

70

40

20

180

160

TEMPERATURE (

°C)

1921 G04

–37.5

–37.7

–37.9

–38.1

–38.3

–38.5

–38.7

–38.9

–39.1

–39.3

–39.5

–50

–30

–10

10

30

50

70

90

TEMPERATURE (

°C)

–50

–30

–10

10

30

50

70

90

1921 G04

–42.5

–42.6

–42.7

–42.8

–42.9

–43.0

–43.1

–43.2

–43.3

–43.4

–43.5

TEMPERATURE (

°C)

1921 G05

–68.0

–68.5

–69.0

–69.5

–70.0

–70.5

–71.0

–71.5

–72.0

–50

–30

–10

10

30

50

70

90

TEMPERATURE (

°C)

1921 G06

1.50

1.45

1.40

1.35

1.30

1.25

1.20

1.15

1.10

1.05

1.00

–50

–30

–10

10

30

50

70

90