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MAX5959LECS+

Description
Hot Swap Voltage Controllers Triple PCIe Hot Plug Controller
CategoryPower/power management    The power supply circuit   
File Size625KB,25 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Environmental Compliance
Download Datasheet Parametric Compare View All

MAX5959LECS+ Overview

Hot Swap Voltage Controllers Triple PCIe Hot Plug Controller

MAX5959LECS+ Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerMaxim
Parts packaging codeQFP
package instructionTFQFP, TQFP80,.55SQ
Contacts80
Reach Compliance Codecompliant
ECCN codeEAR99
Adjustable thresholdYES
Analog Integrated Circuits - Other TypesPOWER SUPPLY MANAGEMENT CIRCUIT
JESD-30 codeS-PQFP-G80
JESD-609 codee3
length12 mm
Humidity sensitivity level3
Number of channels4
Number of functions1
Number of terminals80
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Package body materialPLASTIC/EPOXY
encapsulated codeTFQFP
Encapsulate equivalent codeTQFP80,.55SQ
Package shapeSQUARE
Package formFLATPACK, THIN PROFILE, FINE PITCH
Peak Reflow Temperature (Celsius)260
power supply3.3,12 V
Certification statusNot Qualified
Maximum seat height1.2 mm
Maximum supply current (Isup)2.5 mA
Maximum supply voltage (Vsup)13.2 V
Minimum supply voltage (Vsup)10.8 V
Nominal supply voltage (Vsup)12 V
surface mountYES
technologyBICMOS
Temperature levelINDUSTRIAL
Terminal surfaceMatte Tin (Sn)
Terminal formGULL WING
Terminal pitch0.5 mm
Terminal locationQUAD
Maximum time at peak reflow temperatureNOT SPECIFIED
width12 mm
19-0856; Rev 0; 7/07
KIT
ATION
EVALU
BLE
AVAILA
Quad PCI Express, Hot-Plug Controllers
General Description
The MAX5959/MAX5960 quad hot-plug controllers are
designed for PCI Express
®
(PCIe) applications. These
devices provide hot-plug control for the main 12V, 3.3V,
and 3.3V auxiliary supplies of four PCIe slots. The
MAX5959/MAX5960s’ logic inputs/outputs allow interfac-
ing directly with the system hot-plug management con-
troller or through an SMBus™ with an external I/O
expander such as the MAX7313. An integrated
debounced attention switch and present-detect signals
simplify system design.
The MAX5959/MAX5960 drive eight external n-channel
MOSFETs to control the 12V and 3.3V main outputs. The
3.3V auxiliary outputs are controlled through 0.2Ω n-chan-
nel MOSFETs. Internal charge pumps provide the gate
drive for the 12V outputs while the gate drive of the 3.3V
output is driven by the 12V input supply clamped to 5.5V
above the respective 3.3V main supply rail. The 3.3V aux-
iliary outputs are completely independent from the main
outputs with their own charge pumps.
At power-up, the MAX5959/MAX5960 keep all the
MOSFETs off until the supplies rise above their respective
undervoltage lockout (UVLO) thresholds. Upon a turn-on
command, the MAX5959/MAX5960 enhance the external
and internal MOSFETs slowly with a constant gate current
to limit the power-supply inrush current.
The MAX5959/MAX5960 actively limit the current to pro-
tect all outputs at all times and shut down if an overcur-
rent condition persists longer than the programmable
overcurrent timeout. After an overcurrent or overtempera-
ture fault condition, the MAX5959L/MAX5960L latch off
while the MAX5959A/MAX5960A automatically restart
after a restart time delay. The MAX5959/MAX5960 are
offered in latch-off or autorestart versions (see the
Selector Guide).
The MAX5959/MAX5960 are available in an 80-pin TQFP
package and operate over the -40°C to +85°C tempera-
ture range.
PCIe Compliant
Hot Swap 12V, 3.3V, and 3.3V Auxiliary for 4
PCIe Slots
Integrated Power MOSFETs for Auxiliary Supply
Rails
Controls di/dt and dV/dt
Active Current Limiting Protects Against
Overcurrent/Short-Circuit Conditions
Programmable Current-Limit Timeout
PWRGD
Signal Outputs with Programmable
Power-On Reset (POR) (160ms Default)
Latched
FAULT
Signal Output After Overcurrent
or Overtemperature Fault
Attention Switch Inputs/Outputs with 4ms
Debounce
Present-Detect Inputs
Force-On Inputs Facilitate Testing/Debug
Thermal Shutdown
Allow Control Through SMBus with an I/O
Expander
Features
MAX5959/MAX5960
Ordering Information
PART
MAX5959AECS+
MAX5959LECS+
MAX5960AECS+
MAX5960LECS+
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-
PACKAGE
80 TQFP
80 TQFP
80 TQFP
80 TQFP
PKG
CODE
C80-1
C80-1
C80-1
C80-1
+Denotes
a lead-free package.
Applications
Servers
Desktop Mobile Server Platforms
Workstations
Pin Configuration and Typical Application Circuit appear at
end of data sheet.
PCI Express is a registered trademark of PCI-SIG Corp.
SMBus is a trademark of Intel Corp.
Selector Guide
PART
MAX5959AECS+
MAX5959LECS+
MAX5960AECS+
MAX5960LECS+
LATCH OFF
AUTORESTART
GUARANTEED AUX CURRENT (mA)
375
375
550
550
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.

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Description Hot Swap Voltage Controllers Triple PCIe Hot Plug Controller Hot Swap Voltage Controllers Triple PCIe Hot Plug Controller Hot Swap Voltage Controllers Triple PCIe Hot Plug Controller Hot Swap Voltage Controllers Triple PCIe Hot Plug Controller Hot Swap Voltage Controllers Triple PCIe Hot Plug Controller Hot Swap Voltage Controllers Triple PCIe Hot Plug Controller
Is it lead-free? Lead free - Lead free Lead free Lead free Lead free
Is it Rohs certified? conform to - conform to conform to conform to conform to
Maker Maxim - Maxim Maxim Maxim Maxim
package instruction TFQFP, TQFP80,.55SQ - QFP, TQFP80,.55SQ QFP, TQFP80,.55SQ QFP, TQFP80,.55SQ TFQFP, TQFP80,.55SQ
Reach Compliance Code compliant - compliant compliant compliant compliant
ECCN code EAR99 - EAR99 EAR99 EAR99 EAR99
JESD-30 code S-PQFP-G80 - S-PQFP-G80 S-PQFP-G80 S-PQFP-G80 S-PQFP-G80
JESD-609 code e3 - e3 e3 e3 e3
Humidity sensitivity level 3 - 1 1 3 3
Number of terminals 80 - 80 80 80 80
Maximum operating temperature 85 °C - 85 °C 85 °C 85 °C 85 °C
Minimum operating temperature -40 °C - -40 °C -40 °C -40 °C -40 °C
Package body material PLASTIC/EPOXY - PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code TFQFP - QFP QFP QFP TFQFP
Encapsulate equivalent code TQFP80,.55SQ - TQFP80,.55SQ TQFP80,.55SQ TQFP80,.55SQ TQFP80,.55SQ
Package shape SQUARE - SQUARE SQUARE SQUARE SQUARE
Package form FLATPACK, THIN PROFILE, FINE PITCH - FLATPACK FLATPACK FLATPACK FLATPACK, THIN PROFILE, FINE PITCH
Peak Reflow Temperature (Celsius) 260 - 225 225 225 260
power supply 3.3,12 V - 3.3,12 V 3.3,12 V 3.3,12 V 3.3,12 V
Certification status Not Qualified - Not Qualified Not Qualified Not Qualified Not Qualified
Maximum supply current (Isup) 2.5 mA - 2.5 mA 2.5 mA 2.5 mA 2.5 mA
surface mount YES - YES YES YES YES
technology BICMOS - BICMOS BICMOS BICMOS BICMOS
Temperature level INDUSTRIAL - INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL
Terminal surface Matte Tin (Sn) - MATTE TIN MATTE TIN MATTE TIN TIN
Terminal form GULL WING - GULL WING GULL WING GULL WING GULL WING
Terminal pitch 0.5 mm - 0.5 mm 0.5 mm 0.5 mm 0.5 mm
Terminal location QUAD - QUAD QUAD QUAD QUAD
Maximum time at peak reflow temperature NOT SPECIFIED - NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED
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