PRODUCT SPECIFICATION

FAN5094

REV. 1.0.2 5/13/02

3

Absolute Maximum Ratings

19

GNDA

Ground A. Ground-side current sense pin. Connect directly to low-side

MOSFET source, or to sense resistor ground.

20

LDRVA

Low Side FET Driver for A. Connect this pin to the gate of an N-channel

MOSFET for synchronous operation. The trace from this pin to the MOSFET

gate should be <0.5”.

21

VCC

VCC. Internal IC supply. Connect to system 12V supply, and decouple with a

0.1

µF ceramic capacitor.

22

PWRGD

Power Good Flag. An open collector output that will be logic LOW if the

output voltage is not within +/-5% of the nominal output voltage setpoint.

23

PHASE

Phase Control. Connecting this pin to bypass causes a synchronized clock

signal to appear on CLK. Connecting this pin to ground allows the CLK pin to

accept a clock signal for synchronization.

24

ISHR

Current Share. Connecting this pin to the ISHR pin of another FAN5094

enables current sharing.

25

DROOP/E*

Droop Control/E*-mode Control. A resistor from this pin to ground sets the

amount of droop by controlling the gain of the current sense amplifier.

Connecting this pin to bypass turns off Phase A.

26

ENABLE/SS

Output Enable. A logic LOW on this pin will disable the output. An internal

current source allows for open collector control. This pin also doubles as soft

start.

27

RT

Frequency Set. A resistor from this pin to ground sets the switching

frequency. See Apps section.

28

VFB

Voltage Feedback. Connect to the desired regulation point at the output of

the converter.

Parameter

Min.

Typ.

Max.

Units

Supply Voltage VCC

15

V

Supply Voltages BOOTA, BOOTB

22

V

Voltage Identification Code Inputs, VID0-VID4

6

V

VFB, ENABLE/SS, PWRGD, PHASE, CLK

6

V

SW, ISNS

-3

15

V

PGNDA, PGNDB to AGND

-0.5

0.5

V

Gate Drive Current, peak pulse

3

A

-55

150

°C

Storage Temperature

-65

150

°C

Lead Soldering Temperature, 10 seconds

300

°C

Thermal Resistance Junction-to-case,

16

°C/W

Pin Number

Pin Name

Pin Function Description