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MAX5913A Dataheets PDF



Part Number MAX5913A
Manufacturers Maxim Integrated Products
Logo Maxim Integrated Products
Description +48V Quad Hot-Swap Controllers
Datasheet MAX5913A DatasheetMAX5913A Datasheet (PDF)

19-3302; Rev 0; 5/04 +48V Quad Hot-Swap Controllers For Power-Over-LAN General Description The MAX5913A/MAX5914A are quadruple hot-swap controllers. The MAX5913A/MAX5914A independently control four external n-channel switches to hot-swap system loads from a single VCC supply line. The devices allow the safe insertion and removal of power devices from live network ports. The operating supply voltage range is between +35V and +72V. The devices are intended for applications in Power-Over-Media-Dep.

  MAX5913A   MAX5913A


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19-3302; Rev 0; 5/04 +48V Quad Hot-Swap Controllers For Power-Over-LAN General Description The MAX5913A/MAX5914A are quadruple hot-swap controllers. The MAX5913A/MAX5914A independently control four external n-channel switches to hot-swap system loads from a single VCC supply line. The devices allow the safe insertion and removal of power devices from live network ports. The operating supply voltage range is between +35V and +72V. The devices are intended for applications in Power-Over-Media-Dependent Interface (MDI), but are not limited to such usage. The MAX5913A/MAX5914A feature an internal underwww.DataSheet4U.com voltage lockout (UVLO) function that prevents the FET from turning on, if VCC does not exceed the default value of +32V. The devices also feature a +12V relay driver with 100mA current drive capable of driving lowvoltage +3.3V relays. The MAX5913A features an active-low relay driver that sinks current when the relay output is enabled. The MAX5914A features an activehigh relay driver output that sources 1mA to drive an external FET relay driver when the relay output is enabled. Control circuitry ensures the relays and the FETs are off until VCC reaches the UVLO threshold. The MAX5913A/MAX5914A use an external sense resistor to enable all the internal current-sense functions. The MAX5913A/MAX5914A feature a programmable analog current-limit circuit. If the switch remains in current limit for more than a programmable time, the n-channel FET latches off and the supply can be restarted either by autoretry or by an external command after the preset offtime has elapsed. The MAX5913A/MAX5914A are available in a 44-pin MQFP package and are specified for the extended -40°C to +85°C operating temperature range. Features ♦ Wide Operating Input Voltage Range: +35V to +72V ♦ IEEE 802.3af Compatible ♦ Four Independent Power Switch Controllers ♦ Open-Circuit Detector ♦ On-Board Charge Pumps to Drive External n-Channel FETs ♦ Current Sense with External Resistor ♦ Foldback Current Limiting ♦ +32V Input Undervoltage Lockout ♦ On-Chip +12V, 100mA Voltage Relay Drivers MAX5913A/MAX5914A Ordering Information PART MAX5913AEMH MAX5914AEMH* TEMP RANGE -40°C to +85°C -40°C to +85°C PINPACKAGE 44 MQFP 44 MQFP PKG CODE M44-3 M44-3 *Future product—contact factory for availability. Pin Configuration TOP VIEW VDD RTIM ON4 RLYON4 ON3 RLYON3 ON2 RLYON2 ON1 RLYON1 DC 44 43 42 41 40 39 38 37 36 35 34 Applications Power-Over-LAN Power-Over-MDI IP Phone Switches/Routers Telecom Line Cards Network Switches/Routers Midspan Power-Over-MDI FAULT STAT1 STAT2 STAT3 STAT4 CSP4 DRAIN4 OUT4 GATE4 CSP3 DRAIN3 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 33 32 31 30 29 RTRYEN STATOUT OCEN DGND VCC CSP1 DRAIN1 GATE1 OUT1 CSP2 DRAIN2 MAX5913A MAX5914A 28 27 26 25 24 23 Typical Operating Circuit appears at end of data sheet. ________________________________________________________________ Maxim Integrated Products OUT3 GATE3 VRLY RLYD3 RLYD4 DGND RLYD1 RLYD2 AGND OUT2 GATE2 MQFP 1 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. +48V Quad Hot-Swap Controllers For Power-Over-LAN MAX5913A/MAX5914A ABSOLUTE MAXIMUM RATINGS VCC to AGND or DGND..........................................-0.6V to +76V DRAIN_, OUT_ to AGND or DGND .............-0.6V to (VCC +0.3V) CSP_ to VCC ..........................................................-0.3V to +0.3V GATE_ to OUT_ .....................................................-0.3V to +13V VRLY to DGND ........................................................-0.3V to +18V RLYD_ to DGND........................................-0.3V to (VRLY + 0.3V) ON_, RLYON_, OCEN, RTRYEN, STATOUT, DC to DGND........................................................-0.3V to +12V FAULT to DGND .....................................................-0.3V to +12V STAT_, RTIM to DGND ...............................-0.3V to (VDD + 0.3V) VDD to DGND ...........................................................-0.3V to +7V DGND to AGND...........................................................-5V to +5V Current into RLYD_ .........................................-50mA to +150mA Current into Any Other Pin................................................±50mA Continuous Power Dissipation (TA = +70°C) 44-Pin MQFP (derate 12.7mW/°C above +70°C)......... 1.013W Operating Temperature Range ...........................-40°C to +85°C Storage Temperature Range .............................-65°C to +150°C Lead Temperature (soldering, 10s) ................................ +300°C www.DataSheet4U.com operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage.


TDF8590TH MAX5913A MAX5914A


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