FireWire Current Limiter and Low-Drop

ORing Switch Controller

6

_______________________________________________________________________________________

Typical Operating Characteristics (continued)

GATE2 DRIVE VOLTAGE

vs. TEMPERATURE

TEMPERATURE (°C)

60

35

10

-15

5.203

5.206

5.209

5.212

5.215

5.218

5.221

5.224

5.227

5.230

5.200

-40

85

ON HIGH VOLTAGE vs. TEMPERATURE

TEMPERATURE (°C)

60

35

10

-15

1.252

1.254

1.256

1.258

1.260

1.250

-40

85

ON LOW VOLTAGE vs. TEMPERATURE

TEMPERATURE (°C)

60

35

10

-15

-40

85

1.182

1.184

1.186

1.188

1.190

1.192

1.194

1.196

1.198

1.200

1.180

FAULT LOW VOLTAGE

vs. TEMPERATURE

TEMPERATURE (°C)

60

35

10

-15

-40

85

20

40

60

80

100

120

140

160

180

200

0

ORing THRESHOLD RESPONSE TIME

MAX5943 toc14

500mA/div

5V/div

5V/div

10V/div

100µs/div

OR_ADJ = IN

TURN-OFF RESPONSE TIME

MAX5943 toc15

1A/div

10V/div

10V/div

2V/div

200ns/div

MAX5943A SHORT-CIRCUIT EVENT

MAX5943 toc16

1A/div

50V/div

50V/div

50V/div

400µs/div

TIM = IN

ILIM = GND

50V/div