MAX15090_13 Datasheet, PDF (1/15 Pages) Maxim Integrated Products – 2.7V to 18V, 12A, Hot-Swap Solution with Current Report Output

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MAX15090/MAX15090A
2.7V to 18V, 12A, Hot-Swap Solution
with Current Report Output
General Description
The MAX15090/MAX15090A 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, 6mω power
MOSFET, and an electronic circuit-breaker protection in
a single package.
The devices integrate an accurate current-sense circuitry
and provide 220FA/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) condi-
tions. After the startup cycle is complete, on-chip compara-
tors provide VariableSpeed/BiLevelK protection against
short-circuit and overcurrent faults, and immunity against
system noise and load transients. The load is disconnected
in the event of a fault condition. The devices are factory
calibrated to deliver accurate overcurrent protection with
Q10% accuracy. During a fault condition, the MAX15090
latches off, while the MAX15090A 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 MAX15090/MAX15090A are available in a 28-bump,
2.07mm x 3.53mm, power wafer-level package (WLP)
and are rated over the -40°C to +85°C extended
temperature range.
Features
S 2.7V to 18V Operating Voltage Range
S 6mω (typ) Internal Power MOSFET
S 12A (max) Load Current Capability
S Current Reporting without Need for External
R_SENSE
S Q10% Circuit-Breaker Threshold Accuracy
S Adjustable Circuit-Breaker Current/Current-Limit
Threshold
S Programmable Slew-Rate Control
S Variable-Speed Circuit-Breaker Response
S Inrush Current Regulated at Startup with Foldback
Implementation for di/dt Control
S Thermal Protection
S Overvoltage Protection
S Power-Good and Fault Outputs
S Latch-Off or Automatic Retry Options
S Programmable Undervoltage Lockout
S IN to OUT Short-Circuit Detection
Applications
RAID Systems
Storage Bridge Bay
Disk Drive Power
Server I/O Cards
Industrial
Ordering Information appears at end of data sheet.
For related parts and recommended products to use with this part,
refer to www.maximintegrated.com/MAX15090.related.
Typical Application Circuit appears at end of data sheet.
VariableSpeed/BiLevel is a trademark of Maxim Integrated
Products, Inc.
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
19-6480; Rev 1; 12/12