5 Pin Configuration and Functions

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

Not to scale

DCDC_IN

DCDC_GND

LDO_OUT

VDD

OUTP

OUTN

GND

DIAG

DCDC_OUT

DCDC_HGND

HLDO_IN

HLDO_OUT

HGND

IN

HGND

NC

Figure 5-1. DWE Package, 16-Pin SOIC (Top View)

Table 5-1. Pin Functions

PIN

TYPE

DESCRIPTION

NO.

NAME

1

DCDC_OUT

Power

High-side output of the isolated DC/DC converter; connect this pin to the HLDO_IN pin.(1)

2

DCDC_HGND

Power ground High-side ground reference for the isolated DC/DC converter; connect this pin to the HGND pin.

3

HLDO_IN

Power

Input of the high-side low-dropout (LDO) regulator; connect this pin to the DCDC_OUT pin.(1)

4

NC

—

No internal connection. Connect this pin to the high-side ground or leave this pin unconnected

(floating).

5

HLDO_OUT

Power

Output of the high-side LDO.(1)

6

IN

Analog input

Analog input.

7, 8

HGND

Signal ground High-side analog ground; connect both pins to the DCDC_HGND pin.

9

GND

Signal ground Low-side analog ground; connect this pin to the DCDC_GND pin.

10

OUTN

Analog output Inverting analog output.

11

OUTP

Analog output Noninverting analog output.

12

VDD

Power

Low-side power supply.(1)

13

LDO_OUT

Power

Output of the low-side LDO; connect this pin to the DCDC_IN pin.(1)

14

DIAG

Digital output

Active-low, open-drain status indicator output; connect this pin to the pullup supply (for example,

VDD) using a resistor or leave this pin floating if not used.

15

DCDC_GND

Power ground Low-side ground reference for the isolated DC/DC converter; connect this pin to the GND pin.

16

DCDC_IN

Power

Low-side input of the isolated DC/DC converter; connect this pin to the LDO_OUT pin.(1)

(1)

See the Power Supply Recommendations section for power-supply decoupling recommendations.

www.ti.com

AMC3311

SBASAQ5A – JUNE 2023 – REVISED AUGUST 2023

Copyright © 2023 Texas Instruments Incorporated

Submit Document Feedback

3

Product Folder Links: AMC3311