Datasheet LTC4311 (Analog Devices) - 5

LTC4311
PIN FUNCTIONS BUS1:
Active Pull-up for Bus. Connect to either clock line
EXPOSED PAD (DFN Package Only):
Exposed Pad may or data line for 2-wire bus. be left open or connected to device ground.
BUS2:
Active Pull-up for Bus. Connect to either clock line
GND:
Device Ground. Connect this pin to a ground plane or data line for 2-wire bus. for best results.
ENABLE:
Device Enable Input. This is a 1V nominal digital
VCC:
Supply Voltage Input. Connect this pin to bus supply threshold input pin. For normal operation drive ENABLE and place a bypass capacitor of at least 0.01μF close to to a voltage greater than 1.5V. Driving ENABLE below the VCC for best results. 0.4V threshold puts the device in a low (<5μA) current shutdown mode and puts the BUS pins in a high imped- ance state. If unused, connect to VCC.
BLOCK DIAGRAM
5mA BUS1 VCC SLEW RATE DETECTOR 5mA BUS2 SLEW RATE DETECTOR + VTHR – CONTROL + LOGIC AND INTERNAL SLEW COMPARATOR V – THR + VCC – 0.4 – + VCC – 0.4 – + GND ENABLE 1V – 4311 BD 4311fa 5