LTM2887 datasheet(10/30 Pages) AD

10 / 30 page

LTM2810

Rev. A

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PIN FUNCTIONS

an external pull-up device to SDA2. Under the condition

of an isolation communication failure outputs default to

a high state. Pins connected internally.

SCL2 (W4): Serial I2C Clock Output, Referenced to VL2

and GND2. Logic output connected to logic side SCL pin

through the isolation barrier. Clock is unidirectional from

logic to isolated side. SCL2 has a push-pull output stage;

do not connect an external pull-up device. Under the con-

dition of an isolation communication failure this output

defaults to a high state.

AVL2 (W5): VL2 LDO Adjust Pin.

I3 (X1): Digital Input, Referenced to VL2 and GND2. Logic

input connected to DO3 through the isolation barrier. The

logic state on I3 translates to the same logic state on DO3.

Connect to GND2 or VL2 if not used.

I1 (X3): Digital Input, Referenced to VL2 and GND2. Logic

input connected to DO1 through the isolation barrier. The

logic state on I1 translates to the same logic state on DO1.

Connect to GND2 or VL2 if not used.

ON2 (X4): Enable, Referenced to VL2 and GND2. Enables

data communication through the isolation barrier. If ON2

is high the part is enabled and communications are func-

tional to the logic side. If ON2 is low the isolated side is

held in reset, all digital outputs are in a high state. Connect

to VL2 if not driven.

VL2 (X5, X6): Logic Supply, Referred to GND2. Interface

supply voltage for pins SCL2, SDA2, I1, I3, O3, and ON2.

Operating voltage is 3V to 5.5V. Internally bypassed with

6.6μF.

GND2 (W6, V1 to V5): Isolated Ground.

LTM2887 Datasheet(PDF) 10 Page - Analog Devices