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MAX5903ABETT-T

Description
Hot Swap Voltage Controllers
CategoryPower/power management    The power supply circuit   
File Size331KB,14 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
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MAX5903ABETT-T Overview

Hot Swap Voltage Controllers

MAX5903ABETT-T Parametric

Parameter NameAttribute value
Is it lead-free?Contains lead
Is it Rohs certified?incompatible
Parts packaging codeSON
package instruction3 X 3 MM, 0.80 MM HEIGHT, MO-229WEEA, TDFN- 6
Contacts6
Reach Compliance Codenot_compliant
ECCN codeEAR99
Other featuresADJUSTABLE UNDERVOLTAGE LOCKOUT
Adjustable thresholdNO
Analog Integrated Circuits - Other TypesPOWER SUPPLY SUPPORT CIRCUIT
JESD-30 codeS-PDSO-N6
JESD-609 codee0
length3 mm
Humidity sensitivity level1
Number of channels1
Number of functions1
Number of terminals6
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Package body materialPLASTIC/EPOXY
encapsulated codeVSON
Encapsulate equivalent codeSOLCC6,.11,37
Package shapeSQUARE
Package formSMALL OUTLINE, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)245
power supply9/72 V
Certification statusNot Qualified
Maximum seat height0.8 mm
Maximum supply current (Isup)2 mA
Maximum supply voltage (Vsup)72 V
Minimum supply voltage (Vsup)9 V
Nominal supply voltage (Vsup)48 V
surface mountYES
technologyBICMOS
Temperature levelINDUSTRIAL
Terminal surfaceTin/Lead (Sn85Pb15)
Terminal formNO LEAD
Terminal pitch0.95 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
width3 mm
Base Number Matches1
19-1988; Rev 3; 1/07
+72V, SOT23/TDFN, Simple Swapper Hot-Swap
Controllers
MAX5902/MAX5903
General Description
The MAX5902/MAX5903 are hot-swap controllers that
allow a circuit card to be safely hot plugged into a live
backplane without causing a glitch on the power-sup-
ply rail. These devices operate from +9V to +72V and
provide the simplest hot-swap solution by eliminating all
external components except the external p-channel
MOSFET.
The MAX5902/MAX5903 limit the inrush current to the
load and provide a circuit-breaker function for overcurrent
protection. During startup the circuit-breaker function is
disabled and the MAX5902/MAX5903 limit the inrush cur-
rent by gradually turning on the external MOSFET. Once
the external MOSFET is fully enhanced, the circuit-break-
er function is enabled and the MAX5902/MAX5903 pro-
vide overcurrent protection by monitoring the voltage
drop across the external MOSFET’s on-resistance.
The MAX5902/MAX5903 include an undervoltage lock-
out (UVLO) function, ON/OFF control input, and a
power-good status output,
PGOOD
(MAX5902) or
PGOOD (MAX5903). A built-in thermal shutdown fea-
ture is also included to protect the external MOSFET in
case of overheating.
The MAX5902/MAX5903 offer latched or autoretry fault
management and are available with 300mV, 400mV or
500mV circuit-breaker thresholds. Both the MAX5902 and
MAX5903 are available in small SOT23 and TDFN pack-
ages, and are specified for the extended -40°C to +85°C
temperature range. For specific ordering information, see
the
Selector Guide
at the end of the data sheet.
Wide +9V to +72V Operation
Requires No External Sense Resistor
Drives External p-Channel MOSFET
Limits Inrush Current
Circuit-Breaker Function
Less than 2mA Quiescent Current
ON/OFF Input Permits Load Power-Supply
Control and Sequencing
Adjustable Undervoltage Lockout
Power-Good Output with +72V Rating
Latching or Automatic Retry Fault Management
Thermal Shutdown Helps Protect the External
MOSFET
Available in Two Small Packages
6-Pin TDFN and SOT23
Features
Ordering Information
PART
TEMP RANGE
PIN-
PACKAGE
6 SOT23-6
6 TDFN-6
6 SOT23-6
6 TDFN-6
PKG
CODE
U6F+6
T633+2
U6F+6
T633+2
MAX5902_
_EUT-T+* -40°C to +85°C
MAX5902_ _ETT-T+*
MAX5903_ _ETT-T+*
-40°C to +85°C
-40°C to +85°C
MAX5903_
_EUT-T+* -40°C to +85°C
Applications
Network Routers
Network Switches
Base Station Line
Cards
Servers
RAID
Industrial Systems
*For
specific part numbers see the Selector Guide at end of
data sheet.
+Denotes
lead-free package.
Typical Operating Circuits
50W ISOLATED
POWER SUPPLY
IRFR5410
HOT-SWAP CONTROLLER
V
IN
(+)
LUCENT
JW050A1
Pin Configurations
BACKPLANE CIRCUIT CARD
TOP VIEW
V
S
1
6
ON/OFF
+48V
MAX5902
DRAIN
2
MAX5902
MAX5903
5
PGOOD (PGOOD)
V
S
ON/OFF
GATE
DRAIN
PGOOD
ON/OFF
V
IN
(-)
GATE
3
4
GND
GND
GND
SOT23-6
( ) ARE FOR MAX5903 ONLY.
Typical Operating Circuits continued at end of data sheet.
Simple Swapper is a trademark of Maxim Integrated Products, Inc.
1
Pin Configurations continued at end of data sheet.
________________________________________________________________
Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
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