LTC4232 datasheet(5/20 Pages) LINER

5 / 20 page

LTC4234

4234fa

For more information www.linear.com/LTC4234

TYPICAL PERFORMANCE CHARACTERISTICS

UV Hysteresis vs Temperature

Timer Pull-Up Current

vs Temperature

Current Limit Delay

(tPHL(ILIM) vs Overdrive)

Current Limit Threshold Foldback

Current Limit Adjustment

(IOUT vs RSET)

RISET vs Temperature

IDD vs VDD

INTVCC Load Regulation

UV Low-High Threshold

vs Temperature

TA = 25°C, VDD = 12V unless otherwise noted.

VDD (V)

1.0

1.4

1.8

125°C

25°C

–40°C

2.2

4234 G01

ILOAD (mA)

0.5

1.5

1.0

3.5

2.0

2.5

3.0

4234 G02

–14

–12

–10

–8

–6

–4

–2

VDD = 5V

VDD = 3.3V

TEMPERATURE (°C)

–50

1.224

1.228

1.232

1.236

1.240

–25

4234 G03

75 100 125 150

TEMPERATURE (°C)

–50

0.04

0.06

0.08

0.10

–25

4234 G04

75 100 125 150

TEMPERATURE (°C)

–50

–90

–95

–100

–105

–110

–25

4234 G05

75 100 125 150

OUTPUT CURRENT (A)

100

1000

120

4234 G06

0.1

100

FB VOLTAGE (V)

0.2

0.4

0.6

0.8

4234 G07

1.0

1.2

>30ms SOA GUARANTEED

RSET ()

100k

10M

4234 G08

10k

TEMPERATURE (°C)

–50

–25

4234 G09

75 100 125 150

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