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LTC4260IUH#PBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30
LTC4260
22
4260fc
For more information www.linear.com/LTC4260
applicaTions inForMaTion
Table 2. LTC4260 Register Addresses and Contents
REGISTER
ADDRESS*
REGISTER
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
LTC4260
23
4260fc
For more information www.linear.com/LTC4260
applicaTions inForMaTion
Table 4. ALERT Register B (01h)—Read/Write
BIT NAME OPERATION
B7 Reserved Not Used
B6 GPIO Output Output Data Bit to GPIO Pin When Configured as Output. Defaults to 0
B5 FET Short Alert Enables Alert for FET Short Condition
1 = Enable Alert, 0 = Disable Alert (Default)
B4
BDPRST State Change Alert Enables Alert When BDPRST Changes State
1 = Enable Alert, 0 = Disable Alert (Default)
B3 Power Bad Alert Enables Alert when Output Power is Bad
1 = Enable Alert, 0 = Disable Alert (Default)
B2 Overcurrent Alert Enables Alert for Overcurrent Condition
1 = Enable Alert, 0 = Disable Alert (Default)
B1 Undervoltage Alert Enables Alert for Undervoltage Condition
1 = Enable Alert, 0 = Disable Alert (Default)
B0 Overvoltage Alert Enables Alert for Overvoltage Condition
1 = Enable Alert, 0 = Disable Alert (Default)
Table 5. STATUS Register C (02h)—Read Only
BIT NAME OPERATION
C7 FET On Indicates State of FET
1 = FET On, 0 = FET Off
C6 GPIO Input State of the GPIO Pin
1 = GPIO High, 0 = GPIO Low
C5 FET Short Present Indicates Potential FET Short if Current Sense Voltage Exceeds 2mV While FET is Off
1 = FET is Shorted, 0 = FET is Not Shorted
C4 Board Present
Indicates if a Board is Present When BDPRST is Low
1 = BDPRST Pin Low, 0 = BDPRST Pin High
C3 Power Bad Indicates Power is Bad When FB is Low
1 = FB Low, 0 = FB High
C2 Overcurrent Indicates Overcurrent Condition During Cool Down Cycle
1 = Overcurrent, 0 = Not Overcurrent
C1 Undervoltage Indicates Input Undervoltage When UV is Low
1 = UV Low, 0 = UV High
C0 Overvoltage Indicates Input Overvoltage When OV is High
1 = OV High, 0 = OV Low
LTC4260
24
4260fc
For more information www.linear.com/LTC4260
applicaTions inForMaTion
Table 6. FAULT Register D (03h)—Read/Write
BIT NAME OPERATION
D7:6 Reserved
D5 FET Short Fault Occurred Indicates Potential FET Short was Detected When Measured Current Sense Voltage Exceeded 2mV
(code 0000111) While FET was Off
1 = FET was Shorted, 0 = FET is Good
D4 Board Present Changes State
Indicates that a Board was Inserted or Extracted When BDPRST Changed State
1 = BDPRST Changed State, 0 = BDPRST Unchanged
D3 Power Bad Fault Occurred Indicates Power was Bad When FB Went Low (C3 = 1)
While Gate-to-Source was High
1 = FB was Low and Gate was High, 0 = FB was Low and Gate was Low, or FB was High and Gate was
High or Low
D2 Overcurrent Fault Occurred Indicates Overcurrent Fault Occurred
1 = Overcurrent Fault Occurred, 0 = No Overcurrent Faults
D1 Undervoltage Fault Occurred Indicates Input Undervoltage Fault Occurred When UV Went Low
1 = UV was Low, 0 = UV was High
D0 Overvoltage Fault Occurred Indicates Input Overvoltage Fault Occurred When OV Went High
1 = OV was High, 0 = OV was Low
Table 7. SENSE Register E (04h)—Read/Write
BIT NAME OPERATION
E7:0 SENSE Voltage Data V
DD
-SENSE Current Sense Voltage Data. 8-Bit Data with 300µV LSB and 76.8mV Full Scale
Table 8. SOURCE Register F (05h)—Read/Write
BIT NAME OPERATION
F7:0 SOURCE Voltage Data SOURCE Pin Voltage Data. 8-Bit Data with 400mV LSB and 102.4V Full Scale
Table 9. ADIN Register G (06h)—Read/Write
BIT NAME OPERATION
G7:0 ADIN Voltage Data ADIN Pin Voltage Data. 8-Bit Data with 10mV LSB and 2.56V Full Scale
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30

LTC4260IUH#PBF

Mfr. #:
Buy LTC4260IUH#PBF
Manufacturer:
Analog Devices Inc.
Description:
Hot Swap Voltage Controllers 48V Hot Swap Controller with I2C ADC
Lifecycle:
New from this manufacturer.
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