Datasheet

LTC4260

4260fc

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Table 2. LTC4260 Register Addresses and Contents

ADDRESS*

NAME

READ/WRITE DESCRIPTION

00h CONTROL (A) R/W Controls Whether the Part Retries After Faults, Set the Switch State

01h ALERT (B) R/W Controls Whether the ALERT Pin is Pulled Low After a Fault is Logged in the Fault Register

02h STATUS (C) R System Status Information

03h FAULT (D) R/W Fault Log

04h SENSE (E) R/W** ADC Current Sense Voltage Data

05h SOURCE (F) R/W** ADC SOURCE Voltage Data

06h, 07h ADIN (G) R/W** ADC ADIN Voltage Data

*Register address MSBs b7-b3 are ignored.

**Writable if bit A5 set.

Table 3. CONTROL Register A (00h)—Read/Write

BIT NAME OPERATION

A7:6 GPIO Configure Configures Behavior of GPIO Pin

FUNCTION A6 A7 GPIO PIN

Power Good (Default) 0 0 GPIO = C3

Power Bad 0 1 GPIO = C3

General Purpose Output 1 0 GPIO = B6

General Purpose Input 1 1 GPIO = Hi-Z

A5 Test Mode Enable Test Mode Halts ADC Operation and Enables Writes to ADC Registers

1 = Enable Test Mode, 0 = Disable Test Mode (Default)

A4 Mass Write Enable Enables Mass Write Using Address (1011 111)b

1 = Enable Mass Write (Default), 0 = Disable Mass Write

A3 FET On Control Turns FET On and Off

1 = Turn FET On, 0 = Turn FET Off. Defaults to ON Pin State at End of Debounce Delay

A2 Overcurrent Autoretry Enables Autoretry After an Overcurrent Fault

1 = Retry Enabled, 0 = Retry Disabled (Default)

A1 Undervoltage Autoretry Enables Autoretry After an Undervoltage Fault

1 = Retry Enabled (Default), 0 = Retry Disabled

A0 Overvoltage Autoretry Enables Autoretry After an Overvoltage Fault

1 = Retry Enabled (Default), 0 = Retry Disabled