ISL6161 Просмотр технического описания (PDF) - Intersil

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производитель

ISL6161

Dual Power Distribution Controller

Intersil 

ISL6161

Open load detection can be accomplished by monitoring

the ISEN pins. Although gated off, the external FET IDSS will

cause the ISEN pin to float above ground to some voltage

when there is no attached load. If this is not desired, 5k

resistors from the xISEN pins to ground will prevent the

outputs from floating when the external switch FETs are

disabled and the outputs are open.

Typical Performance Curves

8.4

8.2

8.0

7.8

7.6

7.4

7.2

-40 -30 -20 -10 0 10 20 30 40 50 60 70 80

TEMPERATURE (°C)

FIGURE 2. SUPPLY CURRENT

For PCI-Express applications, the ISL6161 and the

ISL6118 provide the fundamental hotswap function for the

+12V and +3.3V main rails and the +3.3V aux respectively,

as shown in the “PCI-Express Implementation of ISL6161

and ISL6118” on page 10.

105

104

103

102

-40

-30 -20 -10 0 10 20 30 40 50 60

TEMPERATURE (°C)

FIGURE 3. RILIM SOURCE CURRENT

70 80

10.7

10.6

10.5

10.4

10.3

-40 -30 -20 -10 0 10 20 30 40 50 60 70 80

TEMPERATURE (°C)

FIGURE 4. CTIM CURRENT SOURCE

2.04

2.02

2.00

1.98

1.96

1.94

-40 -30 -20 -10 0 10 20 30 40 50 60 70 80

TEMPERATURE (°C)

FIGURE 5. CTIM OC VOLTAGE THRESHOLD

7

FN9104.4

October 2, 2008

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