MAX8533EUB Maxim Integrated Products, MAX8533EUB Datasheet

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MAX8533EUB

Manufacturer Part Number
MAX8533EUB
Description
Hot Swap & Power Distribution 12V InfiniBand-Comp Hot-Swap Controller
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX8533EUB

Lead Free Status / Rohs Status
Lead free / RoHS Compliant

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Manufacturer:
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The MAX8533 is a single-port, 12V, Infiniband
ant (IB) versatile hot-swap controller. The device can be
implemented in both IB Class I (nonisolated) and Class II
(isolated) power-topology applications. Additionally, the
MAX8533 can be used as a reliable power controller on
hot-swappable blade servers, RAID cards, and network
switches or routers that are powered from a 12V bus.
The MAX8533 integrates several features that allow reli-
able insertion and removal of the circuit card, as well as
real-time monitoring of abnormal occurrences. The
MAX8533 allows for an adjustable soft-start ramp during
turn-on of the input voltage, while providing overcurrent
protection. It also provides accurate and consistent cur-
rent-regulated outputs for a programmable period of time
to latch off and soft-start in the presence of overcurrent
conditions (OC). Additionally, it provides a second level
of severe overcurrent (SOC) protection by responding to
a dead short in 100ns. The MAX8533 also includes
adjustable overvoltage protection.
The MAX8533 incorporates undervoltage lockout
(UVLO) and a power-good (POK) signal to the DC-to-
DC converters to confirm the status of output voltage
rails during operation. Two enable inputs EN (logic
enable) and LPEN (local power enable) provide flexible
sequencing. The MAX8533 is specified across the
extended temperature range and has an absolute maxi-
mum rating of 16V to withstand inductive kickback dur-
ing board removal.
The MAX8533 is available in the space-saving 10-pin
µMAX package.
19-2849; Rev 0; 4/03
Pin Configuration appears at end of data sheet.
Infiniband is a trademark of Infiniband
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.
12V Hot-Swap
Infiniband Bulk Power
Hot-Swap/Plug/Dock Power Management
Blade Servers
RAID
Network Routers and Switches
________________________________________________________________ Maxim Integrated Products
Smallest, Most Reliable, 12V, Infiniband-
General Description
SM
Trade Association.
Applications
Compliant Hot-Swap Controller
TM
-compli-
o 12V Hot-Swap Controller for 25W or 50W
o Programmable Overcurrent Protection Regulation
o EN and LPEN Inputs for Flexible Sequencing
o Power-Good Signal
o 16V Absolute Maximum Rating Withstands
o Soft-Start Overcurrent Protection During Turn-On
o Timed Current Regulation Period (Adjustable)
o 100ns IC Response Time to Output Dead Short
o Adjustable Overvoltage Protection
o Undervoltage Lockout
o Adjustable Turn-On Ramp
MAX8533EUB
VB_RET
VB_IN
VBxEN
Infiniband Ports
Level
Inductive Kickbacks
LPEN
BACKPLANE
PART
INFINIBAND
Typical Operating Circuit
MODULE
10V TO 14V
Ordering Information
-40 C to +85 C
TEMP RANGE
EN
LPEN
CTIM
IN
ISET
MAX8533
RET
GATE
Features
10 µMAX
PIN-PACKAGE
POK
OUT
OVP
VB_OUT
V
IN
1

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MAX8533EUB Summary of contents

Page 1

... Absolute Maximum Rating Withstands Inductive Kickbacks o Soft-Start Overcurrent Protection During Turn-On o Timed Current Regulation Period (Adjustable) o 100ns IC Response Time to Output Dead Short o Adjustable Overvoltage Protection o Undervoltage Lockout o Adjustable Turn-On Ramp PART MAX8533EUB Applications BACKPLANE VB_IN VBxEN LPEN VB_RET Trade Association. Features ...

Page 2

Smallest, Most Reliable, 12V, Infiniband- Compliant Hot-Swap Controller ABSOLUTE MAXIMUM RATINGS IN, POK to RET .......................................................-0.3V to +16V GATE to RET ...................................................-0. OUT, ISET, CTIM to RET ..............................-0. EN, LPEN, OVP to RET .............................................-0.3V to +6V ...

Page 3

Smallest, Most Reliable, 12V, Infiniband- ELECTRICAL CHARACTERISTICS (continued +12V +85 C, unless otherwise noted. Typical values are PARAMETER LPEN Rising Threshold Hysteresis = 120mV LPEN ...

Page 4

Smallest, Most Reliable, 12V, Infiniband- Compliant Hot-Swap Controller ELECTRICAL CHARACTERISTICS (continued +12V - +85 C, unless otherwise noted.) (Note PARAMETER LPEN Rising Threshold Hysteresis = 120mV LPEN ...

Page 5

Smallest, Most Reliable, 12V, Infiniband +25°C, unless otherwise noted.) A HOT PLUG INTO INPUT OVERVOLTAGE CONDITION GATE V OUT 40ms/div SHORT-CIRCUIT CURRENT PROTECTION V OUT GATE s/div INPUT-CURRENT RISE ...

Page 6

Smallest, Most Reliable, 12V, Infiniband- Compliant Hot-Swap Controller PIN NAME Current-Limit Threshold Programming Input. Connect to the low side of the current-limit threshold 1 ISET programming resistor Bulk Power Supply. Connect to the input power supply and positive ...

Page 7

Smallest, Most Reliable, 12V, Infiniband- Startup Into Load The MAX8533 is intended to be used in a circuit where no load is applied until the POK signal is enabled application where the load is applied during the output- ...

Page 8

Smallest, Most Reliable, 12V, Infiniband- Compliant Hot-Swap Controller Table 2. External Component List for 50W Output REF DESCRIPTION DESIGNATOR 470µF, 25V aluminum C1 electrolytic capacitor 0.1µF 10%, 25V X5R C2 ceramic capacitor 0.01µF 20% X7R C3 ceramic capacitor 0.22µF 10%, ...

Page 9

Smallest, Most Reliable, 12V, Infiniband- _______PC Board Layout Guidelines To take advantage of the switch response time to an output fault condition, keep all traces as short as possi- ble and maximize the high-current trace width to reduce the effect ...

Page 10

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 10 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2003 Maxim Integrated Products ...

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