Intel E1400 BX80557E1400 Data Sheet

Datasheet

95

+12 V: 12 volt fan power supply

11.4

12

12.6

V

-

IC: 

- Maximum fan steady-state current draw
- Average fan steady-state current draw
- Maximum fan start-up current draw     
- Fan start-up current draw maximum 

duration

—
—
—
—

1.2
0.5
2.2
1.0

—
—
—
—

A
A
A

Second

-

SENSE: SENSE frequency

—

2

—

pulses per 

fan 

revolution

1

1. Baseboard should pull this pin up to 5V with a resistor.

CONTROL

21

25

28

kHz

2, 3

2. Open drain type, pulse width modulated.

3. Fan will have pull-up resistor for this signal to maximum of 5.25 V.

B

d P

P

C bl

Pin

Signal

1 2 3 4

1

2

3

4

GND

+12 V

SENSE
CONTROL

Straight square pin, 4-pin terminal housing with
polarizing ribs and friction locking ramp.

0.100" pitch, 0.025" square pin width.

Match with straight pin, friction lock header on
mainboard.