LT3045 datasheet(6/45 Pages) AD

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Data Sheet

LT3097

SPECIFICATIONS

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Rev. 0 | 6 of 45

Table 1. Electrical Characteristics (Continued)

Parameter

Test Conditions/Comments

Min

Typ

Max

Unit

VRIPPLE = 500 mV p-p, fRIPPLE = 10 kHz, ILN = 500 mA,

CSETN = 0.47 µF

VRIPPLE = 500 mV p-p, fRIPPLE = 100 kHz, ILN = 500 mA,

CSETN = 0.47 µF

VRIPPLE = 500 mV p-p, fRIPPLE = 1 MHz, ILN = 500 mA,

CSETN = 0.47 µF

VRIPPLE = 500 mV p-p, fRIPPLE = 10 MHz, ILN = 500 mA,

CSETN = 0.47 µF

ENP/UVP PIN

Threshold

ENP/UVP trip-point rising (turn-on), VINP = 2 V

1.18

1.24

1.32

Hysteresis

ENP/UVP trip-point hysteresis, VINP = 2 V

130

Current (IENP/UVP)

ENP/UVP voltage (VENP/UVP) = 0 V, VINP = 20 V

±1

µA

VENP/UVP = 1.24 V, VINP = 20 V

0.03

µA

VENP/UVP = 20 V, VINP = 0 V

µA

ENN/UVN PIN

Threshold

Positive ENN/UVN trip-point rising (turn-on), VINN = –2.3

1.20

1.26

1.35

Negative ENN/UVN trip-point rising (turn-on), VINN = –2.3

–1.35

–1.26

–1.20

Hysteresis

Positive ENN/UVN trip-point hysteresis, VINN = –2.3 V

200

Negative ENN/UVN trip-point hysteresis, VINN = –2.3 V

215

Current (IENN/UVN)

ENN/UVN voltage (VENN/UVN) = 0 V, VINN = –20 V

±1

µA

VENN/UVN = –1.5 V, VINN = –20 V

–0.5

µA

VENN/UVN = –20 V, VINN = –20 V

–35

–18.5

µA

VENN/UVN = 1.5 V, VINN = –20 V

µA

VENN/UVN = 20 V, VINN = 0 V

µA

POSITIVE QUIESCENT CURRENT IN SHUTDOWN

(VENP/UVP = 0 V)

VINP = 6 V, TA = 25°C

0.3

1.5

µA

VINP = 6 V

µA

NEGATIVE QUIESCENT CURRENT IN SHUTDOWN

(VENN/UVN = 0 V)

VINN = –6 V, VPGN = Open, TA = 25°C

µA

VINN = –6 V, VPGN = Open

µA

POSITIVE CURRENT LIMIT

Internal13

VINP = 2 V, VOUTP = 0 V

570

710

850

VINP = 12 V, VOUTP = 0 V

700

VINP = 20 V, VOUTP = 0 V

230

330

430

Programmable

Programming scale factor: 2 V < VINP < 20 V14

150

mA × kΩ

VINP = 2 V, VOUTP = 0 V, RILIMP = 301 Ω

450

500

550

VINP = 2V, VOUTP = 0 V, RILIMP = 1.5 kΩ

100

110

NEGATIVE CURRENT LIMIT

Internal15

VINN = –2.3 V, VOUTN = 0 V

550

750

VINN = –12 V, VOUTN = 0 V

425

VINN = –20 V, VOUTN = 0 V

160

Programmable

Programming scale factor: –20 V < VINN < –2.3 V16

3.75

A × kΩ

VINN = –2.3 V, VOUTN = 0 V, RILIMN = 7.5 kΩ

450

500

560

VINN = –2.3 V, VOUTN = 0 V, RILIMN = 37.5 kΩ

105

120

PGFBP PIN

Trip Point

PGFBP trip-point rising

291

300

309

Hysteresis

PGFBP trip-point hysteresis

Current (IPGFBP)

VINP = 2V, VPGFBP = 300 mV

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