ADC 2 Dokumentacja Pobierz pdf (Strona 6)

LTC4261/LTC4261-2

6

42612fd

For more information www.linear.com/LTC4261

Shunt Regulator Voltage

vs Input Current

Shunt Regulator Voltage

vs Temperature

INTV

CC

vs Load Current

GATE Output High Voltage

vs Temperature

GATE Pull-Up Current

vs GATE Voltage

RAMP Pin Current vs Temperature

UVH Threshold vs Temperature UVL Threshold vs Temperature

I

IN

= 5mA, T

A

= 25°C, unless otherwise noted

SHUNT REGULATOR VOLTAGE AT V

IN

(V)

10.8

0

V

IN

PIN INPUT CURRENT (mA)

5

10

15

20

25

30

11 11.2 11.4 11.6

42612 G01

11.8

TEMPERATURE (°C)

–50

11.10

SHUNT REGULATOR VOLTAGE AT V

IN

(V)

11.15

11.20

11.25

11.30

11.35

–25

0 25 50

42612 G02

75

100

I

IN

= 5mA

LOAD CURRENT (mA)

0

INTV

CC

VOLTAGE (V)

5.00

5.02

20

42612 G03

4.98

4.96

5

10

15

5.06

5.04

I

IN

= 25mA

TEMPERATURE (°C)

–50

10.0

GATE OUTPUT HIGH VOLTAGE (V)

10.1

10.2

10.3

10.4

–25

0 25 50

42612 G04

75

100

10.5

V

IN

= 10.65V

GATE Turn-Off Current

vs SENSE Voltage

TEMPERATURE (°C)

–50

2.545

UVH THRESHOLD VOLTAGE (V)

2.550

2.555

2.560

2.565

2.575

–25

0 25 50

42612 G08

75

100

2.570

TEMPERATURE (°C)

–50

2.275

UVH THRESHOLD VOLTAGE (V)

2.280

2.285

2.290

2.295

2.305

–25

0 25 50

42612 G09

75

100

2.300

GATE VOLTAGE (V)

0

–12

GATE PULL-UP CURRENT (µA)

–2

–4

–6

–8

0

2

4 6 8

42612 G05

10 12

–10

TEMPERATURE (°C)

–50

–19.0

RAMP PIN CURRENT (µA)

–19.5

–20.0

–20.5

–21.0

–22.0

–25

0 25 50

42612 G07

75

100

–21.5

TYPICAL PERFORMANCE CHARACTERISTICS

V

SENSE

(mV)

I

GATE(OFF)

(mA)

100

42612 G06

1

10

100 500400300200

0

V

GATE

= 4V

1 2 3 4 5 6 7 8 9 10 11 ... 33 34

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