MAX15091 Datasheet, PDF (1/15 Pages) Maxim Integrated Products – Solution with Current Report Output

MAX15091/MAX15091A
EVALUATION KIT AVAILABLE
2.7V to 18V, 9A, Integrated Hot-Swap
Solution with Current Report Output
General Description
The MAX15091/MAX15091A ICs are integrated solutions
for hot-swap applications requiring the safe insertion and
removal of circuit line cards from a live backplane. The
devices integrate a hot-swap controller, 18mΩ (typ) power
MOSFET, and an electronic circuit-breaker protection in a
single package.
The devices integrate an accurate current-sense circuitry
and provide 170µA/A of proportional output current. The
devices are designed for protection of 2.7V to 18V supply
voltages.
These devices implement a foldback current limit during
startup to control inrush current lowering di/dt and keep the
MOSFET operating under safe operating area (SOA) con-
ditions. After the startup cycle is complete, on-chip compar-
ators provide VariableSpeed/BiLevel™ protection against
short-circuit and overcurrent faults, and immunity against
system noise and load transients. The load is disconnect-
ed in the event of a fault condition. The devices are factory
calibrated to deliver accurate overcurrent protection with
±10% accuracy. During a fault condition, the MAX15091
latches off, while the MAX15091A enters autoretry mode.
The devices feature an IN to OUT short-circuit detection
before startup. The devices provide a power-MOSFET
GATE pin to program the slew rate during startup by add-
ing an external capacitor. The devices have overvoltage/
undervoltage input pins that can detect an overvoltage/
undervoltage fault and disconnect the IN from the OUT.
Additional features include internal overtemperature pro-
tection, power-good output, and fault-indicator output.
The MAX15091/MAX15091A are available in a 28-pin,
5mm x 5mm TQFN power package and are rated over the
-40°C to +85°C extended temperature range.
VariableSpeed/BiLevel is a trademark of Maxim Integrated
Products, Inc.
Features
● 2.7V to 18V Operating Voltage Range
● 18mΩ Internal Power MOSFET
● 9A (typ) Load Current Capability
● Analog Current Report Output
● ±10% Circuit-Breaker Threshold Accuracy
● Programmable Inrush Current Control Under SOA
Operation
● Adjustable Circuit-Breaker Current/Current-Limit
Threshold
● Programmable Slew-Rate Control
● Variable-Speed Circuit-Breaker Response
● Thermal Protection
● Overvoltage Protection
● Power-Good and Fault Outputs
● Latch-Off or Automatic Retry Options
● Programmable Undervoltage Lockout
● IN to OUT Short-Circuit Detection
Applications
● Blade Servers
● Server I/O Cards
● RAID Systems
● Disk Drive Power
● Storage Applications
● Industrial Applications
Ordering Information appears at end of data sheet.
For related parts and recommended products to use with this
part, refer to www.maximintegrated.com/MAX15091.related.
Typical Application Circuit appears at end of data sheet.
19-6625; Rev 1; 9/13