MAX4273ESE datasheet(5/26 Pages) MAXIM

Part #	MAX4273ESE

Description	3V to 12V Current-Limiting Hot-Swap Controllers with Autoretry, DualSpeed/BiLevel Fault Protection

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Manufacturer	MAXIM [Maxim Integrated Products]

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3V to 12V Current-Limiting Hot-Swap Controllers

with Autoretry, DualSpeed/BiLevel Fault Protection

_______________________________________________________________________________________

5

Typical Operating Characteristics

(VIN = 5V, RSENSE = 100mΩ, CBOARD = 47µF, TA = +25°C, unless otherwise noted.)

0

0.3

0.2

0.1

0.5

0.4

0.9

0.8

0.7

0.6

1.0

02468

10

12

14

SUPPLY CURRENT vs. INPUT VOLTAGE

VIN (V)

ON = VIN

IGATE = 10μA

ON = GND

-40

-15

10

35

60

85

SUPPLY CURRENT vs. TEMPERATURE

TEMPERATURE (°C)

0

0.3

0.2

0.1

0.5

0.4

0.9

0.8

0.7

0.6

1.0

ON = VIN

VIN = 12V

VIN = 5V

VIN = 3V

180

200

190

220

210

230

240

18

20

19

22

21

23

24

06

8

2

4

10

12

14

SLOW COMPARATOR

RESPONSE TIME vs. INPUT VOLTAGE

MAX4271/3-03

VIN (V)

CSPD = 110nF

TIME IN ms

CSPD = 0

TIME IN μs

49.0

49.6

49.4

49.2

50.0

49.8

50.8

50.6

50.4

50.2

51.0

02468

10

12

14

SLOW COMPARATOR THRESHOLD

vs. INPUT VOLTAGE

VIN (V)

TA = -40°C

TA = +25°C

TA = +85°C

200

250

350

300

400

450

1

10

100

1000

FAST COMPARATOR RESPONSE TIME

vs. OVERDRIVE VOLTAGE

OVERDRIVE VOLTAGE (mV)

VIN = 12V

VIN = 5V

VIN = 3V

200

300

400

350

450

500

-40

10

-15

35

60

85

FAST COMPARATOR RESPONSE TIME

vs. TEMPERATURE

TEMPERATURE (°C)

VIN = 12V

VIN = 5V

VIN = 3V

250

190

196

194

192

200

198

208

206

204

202

210

FAST COMPARATOR THRESHOLD

vs. INPUT VOLTAGE

02468

10

12

14

VIN (V)

TA = -40°C

TA = +25°C

TA = +85°C

0.1

1

1k

100

10

10k

100k

0.01

1

0.1

10

100

1000

TIME TO FAST DISCHARGE GATE

vs. CGATE

CGATE (nF)

VIN = 12V

VIN = 5V

VIN = 3V

NO EXTERNAL MOSFET

DISCHARGE TO VGATE = 0.1V

250

270

310

290

330

350

04

2

6

8

101214

STARTUP PERIOD

vs. INPUT VOLTAGE

MAX4271/3-09

VIN (V)

25

27

31

29

33

35

CTIM = 100nF

TIME IN ms

CTIM = 1nF

TIME IN μs

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