The LTC®4260 Hot Swap controller protects boards during live
insertion or removal for systems operating on supplies of 12V to
48V. An integrated delta-sigma ADC measures the output voltage,
the current through the sense resistor and a third general purpose
ADC input, enabling board-level fault prediction for high availability
systems. An I²C port allows on/off control, readback of the ADC
registers as well as examination of the fault status. Evaluation is
quick and easy using our USB-based demonstration system.
Features :
8-Bit ADC Monitors Current and
Voltage
I²C/SMBus Interface
Wide Operating Voltage Range:
8.5V to 80V
Input Overvoltage/Undervoltage
Protection
Alerts Host After Faults
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I²C
I
SENSE
V
OUT
ADC
Input
8.5V to 80V
ADC
MUX
LTC4260
High Voltage Controller with Integrated ADC Measures Board Current, Voltage & Fault Status
Quick Evaluation System
Actual Size
LT4256
V
IN
V
OUT
UV
OV
OPEN
RETRY
PWRGD
LTC4211
2.5V to 16.5V
ON
RESET
LTC4210
2.7V to 16.5V
V
CC
LTC4252
RTN
UV
OV
Power Good
-48V
SS
Timer
High Voltage Hot Swap Controller - LT4256
Hot Swap Controller with
Multifunction Current Control - LTC4211
-48V Hot Swap Controller - LTC4252A
Hot Swap Controller in ThinSOT - LTC4210
Features
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10.8V to 80V Operation
Foldback Current Limiting
Open MOSFET Detection (LT4256-3)
LT1641-1/-2 Compatible (LT4256-1/-2)
Features
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2.5V to 16V Supply Range
Active Inrush Current Limiting
Dual Level Overcurrent Fault Protection
Small MSOP Package
Features
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Triple Current Control
- Timed Circuit Breaker
- Active Current Limiting
- Fast Response to Shorts
Floating Topology Permits Very High Voltages
Drain Voltage Accelerated Response
Soft-Start Current Limit
1% Over-/Under-Voltage Protection
Features
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Adjustable Analog Current Limit with Circuit Breaker
Fast Response Limits Peak Fault Current
Controls Supply Voltages from 2.7V to 16.5V
ThinSOT Package