LTC4311

5

4311fa

PIN FUNCTIONS

BUS1: Active Pull-up for Bus. Connect to either clock line

or data line for 2-wire bus.

BUS2: Active Pull-up for Bus. Connect to either clock line

or data line for 2-wire bus.

ENABLE: Device Enable Input. This is a 1V nominal digital

threshold input pin. For normal operation drive ENABLE

to a voltage greater than 1.5V. Driving ENABLE below the

0.4V threshold puts the device in a low (<5μA) current

shutdown mode and puts the BUS pins in a high imped-

EXPOSED PAD (DFN Package Only): Exposed Pad may

be left open or connected to device ground.

GND: Device Ground. Connect this pin to a ground plane

for best results.

and place a bypass capacitor of at least 0.01μF close to

BLOCK DIAGRAM

–

+

–

+

–

+

–

+

–

+

SLEW RATE

DETECTOR

CONTROL

LOGIC AND

INTERNAL SLEW

COMPARATOR

1V

SLEW RATE

DETECTOR

5mA

BUS1

GND

BUS2

ENABLE

5mA

4311 BD