LTC3883 Datasheet, PDF(96/112 Page) Linear Technology – Single Phase Step-Down DC/DC Controller with Digital Power System Management

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LTC3883 Datasheet, PDF (96/112 Pages) Linear Technology – Single Phase Step-Down DC/DC Controller with Digital Power System Management

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LTC3883/LTC3883-1

PMBus Command Details

MFR_PADS

This command provides the user a means of directly reading the digital status of the I/O pins of the device. The bit

assignments of this command are as follows:

BIT ASSIGNED DIGITAL PIN

15 VDD33 OV Fault

14 VDD33 UV Fault

13 Reserved

12 Reserved

11 ADC Values Invalid, Occurs

During Start-Up

10 Device Driving ALERT Low

9 Reserved

8 Power Good

7 Reserved

6 Device Driving RUN Low

5 Reserved

4 RUN

3 Reserved

2 Device Driving GPIO Low

1 Reserved

0 GPIO

A 1 indicates the condition is true.

This read-only command has two data bytes.

MFR_COMMON

The MFR_COMMON command contains bits that are common to all LTC digital power and telemetry products.

BIT MEANING

7 Chip Not Driving ALERT Low

6 Busy when Low

5 Calculations Not Pending

4 Output in Transition when Low

3 NVM Initialized

2 Reserved

1 SHARE_CLK Timeout

0 WP Pin Status

This read-only command has one data byte.

3883f

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