LTC4261 LINER [Linear Technology], LTC4261 Datasheet - Page 29

• Manufacturer Part Number: LTC4261
• Description: Negative Voltage Hot Swap Controllers with ADC and I2C Monitoring
• Manufacturer: LINER [Linear Technology]

APPLICATIONS INFORMATION
Table 6. CONTROL Register D (03h)—Read/Write
BIT
D7:6
D5
D4
D3
D2
D1
D0
Table 7. SENSE Registers E (04h) and F (O5h)—Read/Write
BIT
E7:0, F7:6
F5:0
Table 8. ADIN2/OV Registers G (06h) and H (O7h)—Read/Write
BIT
G7:0, H7:6
H5:0
Table 9. ADIN Registers I (08h) and J (O9h)—Read/Write
BIT
I7:0, J7:6
J5:0
Table 10. ADC Channel Labeling for Single-Wire Broadcast Mode
CH1
0
0
1
NAME
PGIO Confi gure
Test Mode Enable
Power Bad
Auto-Retry
FET On Control
Overcurrent
Auto-Retry
Undervoltage
Auto-Retry
Overvoltage
Auto-Retry
NAME
SENSE Voltage Data
Reserved
NAME
ADIN2/OV Voltage Data 10-Bit Data of ADIN2/OV (SSOP/QFN) Voltage with 2.5mV LSB and 2.56V Full Scale
Reserved
NAME
ADIN Voltage Data
Reserved
CH0
0
1
0
OPERATION
Confi gures Behavior of PGIO Pin
Test Mode Halts ADC Operation and Enables Writes to ADC Registers; 1 = Enable Test Mode, 0 = Disable Test Mode (Default)
Enables Auto-Retry After a Power Bad Fault; 1 = Retry Enabled, 0 = Retry Disabled (Default)
Turns FET On and Off; 1 = Turn FET On, 0 = Turn FET Off. Defaults to ON Pin State at End of Start-Up Debounce Delay
Enables Auto-Retry After an Overcurrent Fault; 1 = Retry Enabled (Default, LTC4261-2),
0 = Retry Disabled (Default, LTC4261)
Enables Auto-Retry After an Undervoltage Fault; 1 = Retry Enabled (Default), 0 = Retry Disabled
Enables Auto-Retry After an Overvoltage Fault; 1 = Retry Enabled (Default), 0 = Retry Disabled
FUNCTION
Power Good (Default)
Power Good
General Purpose Output
General Purpose Input
ADIN2/OV (SSOP/QFN) Voltage
OPERATION
10-Bit Data of Current Sense Voltage with 62.5µV LSB and 64mV Full Scale
Always Returns 0, Not Writable
OPERATION
Always Returns 0, Not Writable
OPERATION
10-Bit Data of ADIN Voltage with 2.5mV LSB and 2.56V Full Scale
Always Returns 0, Not Writable
ADC CHANNEL
SENSE Voltage
ADIN Voltage
D6
0
0
1
1
D7
0
1
0
1
PGIO = Hi-Z
Open Drain
Open Drain
PGIO = C6
PGIO PIN
LTC4261/LTC4261-2
29
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