PD69012

PD69012 - 12 Ports Power Over Ethernet Manager Description _________________ Microsemi’s PD69012 Power over Ethernet (PoE) Manager chip integrates power, analog and state of the art embedded core logic into a single 80-pin, plastic QFP package. The device is used in Ethernet switches and Midspans to enable network devices to share power and data over the same cable. PD69012 device is a 12-port, mixed-signal, highvoltage Power over Ethernet driver. It enables detection of IEEE802.3af-2003 compliant PDs (Powered Devices) and IEEE802.3AT High Power Devices, thus, ensuring safe power feeding and disconnection of ports. With full digital control via a serial communication interface and a minimum of external components, the device integrates into multiport and highly populated Ethernet switches and routers. The PD69012 executes all real time functions as specified in the IEEE802.3af-2003 (“AF”) standard and IEEE802.3at High Power (“AT”) functionality, including load detection, “AF” and “AT” classification and port status monitoring. In addition it performs system level activities such as: power management and MIB support for system management. The PoE device is designed to detect and disable disconnected ports utilizing both DC and AC disconnection methods, as specified in the IEEE 802.3af-2003 standard. The PD69012 is designed to support 2 main configurations: • Auto mode: For Basic ”AF” and “AT” PSE equipment • Enhanced mode: For High End, Extended features set of AF and AT PSE equipment Supported Features __________ PD69012 Auto Mode Features: ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ Fully IEEE802.3af-2003 compliant Designed to support IEEE802.3at including two-event classification Supports Pre-standard PD detection Supports Cisco devices detection IETF Power Ethernet MIB (RFC 3621) compliant Single DC voltage input (44v-57v) Wide temperature range: -40° C to +85° C Low thermal dissipation (0.5Ω sense resistor) Drives 12 independent 2-pairs power ports or 6 independent 4-pairs ports Can cascade up to 8 PoE devices (96 ports) EEPROM interface for software patching and parameter configuration I2C Host interface Supports Interrupt out pin Dynamic Power management Emergency power management supporting 3 Configurable Power Bank I/Os Direct register communication Direct LED drive Continuous monitoring per port and system data Parameter setting per port and per system Power soft start algorithm Thermal monitoring/protection Voltage monitoring/protection H/W disable ports input Built in 3.3 V regulator Internal power on reset Enhanced SPI bus for internal communication External EEPROM for system parameters update SW ROM patch option RoHS compliant Pin Configuration _____________ port_sense5 port_sense4 port_sense3 port_sense2 port_sense1 port_sense0 Agnd2 Sense_Neg Port_neg5 Port_neg4 Port_neg3 Port_neg2 Port_neg1 gate_5 gate_4 gate_2 gate_1 gate_0 Port_neg0 gate_3 LSC LSD Enhanced Modes Additional Features: ♦ ♦ ♦ ♦ ♦ ♦ ♦ I2C or UART host interface Serial Communication Protocol backwards compatible with PD63000 and PDIC66000 Additional monitoring Extended parameter setting Port matrix for flexible PCB layout Field upgradeable software Emergency Power Management with 4 power supplies 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 CS_EEPROM_n/ LSL / Interrupt_n 61 60 Vport_pos0 Vport_pos1 Vport_pos2 Vport_pos3 Vport_pos4 Vport_pos5 Vport_pos6 Vport_pos7 Vport_pos8 Vport_pos9 Vport_pos10 Vport_pos11 CP_OUT CP_IN Vmain Ref_port_neg Dgnd2 PowerGood0/GPIO0 PowerGood1/GPIO1 PowerGood2/GPIO4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 Ext_reg ADC2p5 QGND I2CINI Vcc2p5 ASIC_INI Iref Reset_n SDA LSC/ GPIO3 LSD/ GPIO2 CS_EEPROM_n/ LSL / Interrupt_n Vperi Ext_reg ADC2p5 Qgnd I2CINI Vcc2p5 ASIC_INI Iref Reset_n SDA SDA_out / Test_mode SCL SCK MOSI MISO CS_n Disable_ports_n 59 58 57 56 55 54 53 52 51 50 49 48 47 46 PD69012 SDA_out SCL SCK Ordering Information __________ Part number PART PD69012 Date Code Disable_ports_n 45 44 43 42 41 Temperature range TEMP. RANGE -40 to +85 °C Package PIN PACKAGE LQFP 80 pin This datasheet refers to ICs with date code "XAA0843" or later. Date code: See the bottom line (XAA0843) in the Pin Configuration drawing. Where “0843" is the date code, “08” is the year (2008), and “43” is the week. port_sense10 port_sense11 Port_neg11 gate_10 gate_11 Agnd1 Port_neg8 Port_neg9 Port_neg7 port_sense7 port_sense8 Copyright © 2009 Rev. 1.0, 2009-03-03 port_sense6 port_sense9 Port_neg10 gate_6 gate_7 gate_8 Port_neg6 gate_9 Dgnd1 Microsemi page 1 Analog Mixed Signal Group 2381 Morse Avenue, Irvine, CA 92614, USA; Phone (USA): (800) 713-4113, (ROW): (949) 221-7100 Fax: (949) 756-0308 PD69012 - 12 Ports Power Over Ethernet Manager Package Information____________________________________________ The PD69012 is packed in an 80-pin LQFP plastic package, 12 x 12 x 1.4 mm with exposed pad. Copyright © 2009 Rev. 1.0, 2009-03-03 Microsemi Page 2 Analog Mixed Signal Group 2381 Morse Avenue, Irvine, CA 92614, USA; Phone (USA): (800) 713-4113, (ROW): (949) 221-7100 Fax: (949) 756-0308 PD69012 - 12 Ports Power Over Ethernet Manager Figure 1: PD69012 Package Description Copyright © 2009 Rev. 1.0, 2009-03-03 Microsemi Page 3 Analog Mixed Signal Group 2381 Morse Avenue, Irvine, CA 92614, USA; Phone (USA): (800) 713-4113, (ROW): (949) 221-7100 Fax: (949) 756-0308 PD69012 - 12 Ports Power Over Ethernet Manager Vmain………………………………………………… -0.3 to 80 V(1) DGND, AGND, QGND, SENSE_NEG…………..-0.3 to 0.3 V(2) VPORT_POSx ………………………………..…… -0.3 to 80 V(1) VPORT_NEGx, REF_PORT_NEG……..………..… -8.4 to 80V(1) VPORT_POSx - VPORT_NEGx……………..…..…… -0.3 to 80 V(1) Maximum Ratings ____________ ESD (Human Body Model)…………….….… -2 to 2 kV(3) Max junction temperature (Tjunc)…………..…+150° C Junction-ambient thermal resistance (θJA)….. 30° C/W(4) Junction-case thermal resistance (θJC)………10° C/W Lead temperature (soldering, 10 s)…………. 260° C Storage temperature…………………………..-40 to +125 °C Notes: “x” defines port numbers, 0 thru 3, inclusive. (1) 80 V is the transient voltage that can be applied for 1 min max. (2) Maximum value between grounds. (3) ESD testing is performed in accordance with the Human Body Model (CZap = 100 pF, RZap = 1500 Ω). (4) with 4ML PCB – no air flow PORT_SENSEx …..……..……..……..………..…-7.2 to 25 V (1) Gate_x………………………………..……… -0.3 to 18 V VCC2p5, ADC2p5………….………………………... -0.3 to 3 V VPERI……………………………..…………………. 4 V EXT_REG……………………………………..…… -0.3 to 6 V I2CINI, ASICINI…………………………………… -0.3 to 3 V MISO, MOSI, SCK, SCL, SDA, CLK, RESETN, CS_N, INTERRUPT, POWER_BANK[2..0], LSD, LSC, LSL, SDA_OUT….…………………………………... -0.3 to (VPERI + 0.3) V . Stress beyond those listed above may cause permanent damage to the device. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Operating Conditions ____________________________________________ PARAMETER Operating temperature At full load ambient Operational limitations (1) (1) MIN. -40 15 to 44 NOM. MAX. +85 UNIT °C V 44 to 55 55 to 57 Operating functions depend on the input voltage, as shown in Figure 2. AC Disconnect (only up to 55v) POE IEEE 802.3at compliance (from 50v to 57v) POE IEEE802.3af compliance (from 44v to 57v) Communication (operates over entire range ) 15 44 50 55 57 V Figure 2: Operational Ranges Copyright © 2009 Rev. 1.0, 2009-03-03 Microsemi Page 4 Analog Mixed Signal Group 2381 Morse Avenue, Irvine, CA 92614, USA; Phone (USA): (800) 713-4113, (ROW): (949) 221-7100 Fax: (949) 756-0308 PD69012 - 12 Ports Power Over Ethernet Manager Electrical Characteristics _________________________________________ PIN NAME: PAD TYPE: PARAMETER High Level Input Voltage Low Level Input Voltage Input Voltage Hysteresis Input High Current Input Low Current IIH IIL • • SCL DISABLE_PORTS_N Schmitt Trigger CMOS input, TTL Level with no internal Res. SYMBOL VIH VIL 0.3 -1 -1 1 1 MIN 2.0 0.8 TYP MAX UNIT V V V μA μA NOTE PIN NAME: PAD TYPE: PARAMETER High Level Input Voltage Low Level Input Voltage Input Voltage Hysteresis Input High Current Input Low Current High Level Output Voltage • • • • • CMOS Input LSD Multiplexed with GPIO_2 LSC Multiplexed with GPIO_3 POWER_GOOD0 Multiplexed with GPIO_0 POWER_GOOD1 Multiplexed with GPIO_1 POWER_GOOD2 Multiplexed with GPIO_4 I/O, TTL Level with no internal pull up / pull down resistor, with Schmitt trigger MIN 2.0 0.8 0.3 TYP MAX UNIT V V V +1 +1 μA μA V Iout = -2 mA NOTE SYMBOL VIH VIL IIH IIL -1 -1 VPERI0.4 V Low Level Output Voltage 0.4 V Iout = 2 mA Copyright © 2009 Rev. 1.0, 2009-03-03 Microsemi Page 5 Analog Mixed Signal Group 2381 Morse Avenue, Irvine, CA 92614, USA; Phone (USA): (800) 713-4113, (ROW): (949) 221-7100 Fax: (949) 756-0308 PD69012 - 12 Ports Power Over Ethernet Manager • SCK • CS_N • MOSI CMOS I/O, TTL Level with internal pull up current source, with Schmitt trigger Input SYMBOL VIH VIL 0.3 IIH IIL -1 -1 VPERI0.4 V Low Level Output Voltage Pull Up Current 10 20 0.4 50 V uA Iout = 2 mA +1 +1 MIN 2.0 0.8 TYP MAX UNIT V V V μA μA V Iout = -2 mA NOTE PIN NAME: PAD TYPE: PARAMETER High Level Input Voltage Low Level Input Voltage Input Voltage Hysteresis Input High Current Input Low Current High Level Output Voltage PIN NAME: PAD TYPE: PARAMETER High Level Input Voltage Low Level Input Voltage Input Voltage Hysteresis Input High Current Input Low Current High Level Output Voltage • MISO CMOS I/O, TTL Level with internal pull up current source, with Schmitt trigger Input SYMBOL VIH VIL 0.3 IIH IIL -1 -1 VPERI0.4 V +1 +1 MIN 2.0 0.8 TYP MAX UNIT V V V μA μA V Iout = -2 mA NOTE Low Level Output Voltage Pull Down Current 10 20 0.4 50 V uA Iout = 2 mA Copyright © 2009 Rev. 1.0, 2009-03-03 Microsemi Page 6 Analog Mixed Signal Group 2381 Morse Avenue, Irvine, CA 92614, USA; Phone (USA): (800) 713-4113, (ROW): (949) 221-7100 Fax: (949) 756-0308 PD69012 - 12 Ports Power Over Ethernet Manager • RESET_N • SDA • SDA_OUT Multiplexed with TEST_MODE Digital I/O – input/output open drain CMOS Open Drain Output with Schmitt Trigger Input, TTL Level (external pull up resistor Only)) SYMBOL MIN TYP MAX UNIT NOTE VIH VOL VIL 0.3 -1 +1 2.0 0.4 0.8 V V V V uA Iout = 6 mA PIN NAME: PAD TYPE: PARAMETER High Level Input Voltage Low Level Output Voltage Low Level Input Voltage Input Voltage Hysteresis OFF State Output Current PIN NAME: PAD TYPE: PARAMETER Low Level Output Voltage OFF State Output Current • CS_EEPROM & LSL Multiplexed with INTERRUPT_N CMOS Open Drain Output (external pull up res. Only)) SYMBOL MIN TYP MAX 0.4 -1 +1 UNIT V uA Iout = 6mA NOTE PIN NAME: PAD TYPE: PARAMETER Pin Current Consumption • VPORT_NEGx • REF_PORT_NEG High Voltage Analog Pad SYMBOL MIN -10 TYP MAX +10 UNIT uA NOTE Port driver OFF, Vport differential measurement OFF, AC generator OFF • PIN NAME: PAD TYPE: PARAMETER Operating Voltage Internal Current Consumption PORT_SENSEx Low Voltage Analog Pad SYMBOL MIN 0 TYP MAX 0.5 20 UNIT V uA NOTE With external 0.5 ohm 2% to GND Copyright © 2009 Rev. 1.0, 2009-03-03 Microsemi Page 7 Analog Mixed Signal Group 2381 Morse Avenue, Irvine, CA 92614, USA; Phone (USA): (800) 713-4113, (ROW): (949) 221-7100 Fax: (949) 756-0308 PD69012 - 12 Ports Power Over Ethernet Manager • VPORT_POSx • VPORT_NEGx High Voltage Analog Pad SYMBOL MIN 0 TYP MAX 62 UNIT V NOTE PIN NAME: PAD TYPE: PARAMETER Operating Voltage (to GND) PIN NAME: PAD TYPE: PARAMETER Operating Voltage VMAIN Current Consumption • VMAIN High Voltage Supply Pad SYMBOL MIN 44 13.6 TYP MAX 57 16 UNIT V mA Total on VMAIN NOTE PIN NAME: PAD TYPE: PARAMETER Operating Voltage Pin Internal Current Consumption • Analog CP_OUT SYMBOL MIN 44 TYP MAX 68 5 UNIT V mA NOTE PIN NAME: PAD TYPE: PARAMETER Operating Voltage • Analog CP_IN SYMBOL MIN 34 TYP MAX 57 UNIT V NOTE Copyright © 2009 Rev. 1.0, 2009-03-03 Microsemi Page 8 Analog Mixed Signal Group 2381 Morse Avenue, Irvine, CA 92614, USA; Phone (USA): (800) 713-4113, (ROW): (949) 221-7100 Fax: (949) 756-0308 PD69012 - 12 Ports Power Over Ethernet Manager • • • • Analog PIN NAME: ADC2p5 VCC2p5 VPERI EXT_REG PAD TYPE: PARAMETER ADC2p5 Output voltage ADC2p5 Internal Current Consumption VCC2p5 Output Voltage VPERI Output Voltage VPERI External Current Load EXT_REG Output Current SYMBOL MIN 2.45 TYP MAX 2.55 6 UNIT V mA V V mA mA NOTE Recommended external cap. = 47 nF to 135 nF Recommended external cap. = 47 nF to 135 nF Recommended external cap. = 1 uF to 4.7 uF Without external NPN 2.37 3.10 2.62 3.5 6 6 PIN NAME: PAD TYPE: PARAMETER Operating Voltage Current Consumption • ASICINI • I2CINI (max. capacitance between mode input to GND should NOT exceed 1nF) Analog SYMBOL 0 -1 MIN TYP MAX ADC2p5 +1 UNIT V uA NOTE PIN NAME: PAD TYPE: PARAMETER Output Voltage • Analog IREF SYMBOL MIN 1.21 TYP MAX 1.34 UNIT V NOTE With external 24.9 K resistor to GND PIN NAME: PAD TYPE: PARAMETER Output Voltage • Analog FET_Gx SYMBOL MIN 12 TYP MAX 15 UNIT V NOTE Copyright © 2009 Rev. 1.0, 2009-03-03 Microsemi Page 9 Analog Mixed Signal Group 2381 Morse Avenue, Irvine, CA 92614, USA; Phone (USA): (800) 713-4113, (ROW): (949) 221-7100 Fax: (949) 756-0308 PD69012 - 12 Ports Power Over Ethernet Manager Dynamic Characteristics The PD69012 utilizes three programmable current level thresholds (Imin, Icut, Ilim) and three timers (Tmin, Tcut, Tlim). Loads that dissipate more than Icut for longer than Tcut are classified as ‘overloads’ and are automatically shutdown. Loads that consume Ilim current for more than Tlim are shutdown and classified as 'short circuits'. If the PD69012 is configured to operate in DC-Disconnect mode and the output power is below Imin for more than Tmin, the PD is classified as ‘no-load’ and is shutdown. If the PD69012 is configured to operate in AC-Disconnect mode, then if the load's impedance is above a pre-defined impedance for more than Tmin, the PD is classified as ‘no-load’ and is shutdown. Automatic recovery from overload and no-load conditions is attempted every period of TOVLREC and TUDLREC (typically 5 and 1 seconds respectively). Output power is limited to Ilim, which is a maximum peak current allowed at the port. AF PORTS PARAMETERS PARAMETER Automatic recovery from overload shutdown Automatic recovery from no-load shutdown Cutoff timers accuracy Inrush current Output current operating range Output power available, operating range Off mode current CONDITIONS TOVLREC value, measured from port shutdown (can be modified through control port) TUDLREC value, measured from port shutdown (can be modified through control port) Typical accuracy of Tcut IInrsh Iport Pport Imin1 Imin2 TPMDO Icut TOVL Trise For t=50 ms, Cload=180 uF max. Continuous operation after startup period. Continuous operation after startup period, at port output. Must disconnect for t greater than TUVL May or may not disconnect for t greater than TUVL Buffer period to handle transitions Time limited to TOVL From 10% to 90% of Vport (Specified for PD load consisting of 100 uF capacitor in parallel to 200 Ω). From Vport to 2.8 Vdc DC modulation time for dc disconnect MIN. TYP. 5 1 4 400 10 0.57 0 5 300 350 50 15 500 27 49 600 2000 7.5 2 0 450 375 15.4 5 10 400 400 75 MAX. UNIT s s ms mA mA W mA mA ms mA ms us ms ms KΩ PD power maintenance request drop-out time limit Over load current detection range Over load time limit Turn on rise time Turn off time Time Maintain Power Signature AC disconnect impedance Toff TMPS Zac Copyright © 2009 Rev. 1.0, 2009-03-03 Microsemi Page 10 Analog Mixed Signal Group 2381 Morse Avenue, Irvine, CA 92614, USA; Phone (USA): (800) 713-4113, (ROW): (949) 221-7100 Fax: (949) 756-0308 PD69012 - 12 Ports Power Over Ethernet Manager AT PORTS PARAMETERS PARAMETER Automatic recovery from overload shutdown Automatic recovery from no-load shutdown Cutoff timers accuracy Inrush current Output current operating range Output power available, operating range Off mode current CONDITIONS TOVLREC value, measured from port shutdown (can be modified through control port) TUDLREC value, measured from port shutdown (can be modified through control port) Typical accuracy of Tcut IInrsh Iport Pport Imin1 Imin2 TPMDO Icut TOVL Trise Toff TMPS Zac For t=50 ms, Cload=180 uF max. Continuous operation after startup period. Continuous operation after startup period, at port output. Must disconnect for t greater than TUVL May or may not disconnect for t greater than TUVL Buffer period to handle transitions Time limited to TOVL From 10% to 90% of Vport (Specified for PD load consisting of 100 uF capacitor in parallel to 200 Ω). MIN. TYP. 5 1 MAX. UNIT s s 4 400 10 0.57 0 5 300 686 50 15 2 0 450 643 36 5 ms mA mA W mA mA ms mA ms us 7.5 10 400 PD power maintenance request drop-out time limit Over load current detection range Over load time limit Turn on rise time Turn off time Time Maintain Power Signature AC disconnect impedance 728 771 75 From Vport to 2.8 Vdc DC modulation time for dc disconnect 27 500 49 600 2000 ms ms KΩ Copyright © 2009 Rev. 1.0, 2009-03-03 Microsemi Page 11 Analog Mixed Signal Group 2381 Morse Avenue, Irvine, CA 92614, USA; Phone (USA): (800) 713-4113, (ROW): (949) 221-7100 Fax: (949) 756-0308 PD69012 - 12 Ports Power Over Ethernet Manager Pin Description_____________________________________________ Pin 0 Pin Name PAD VPORT_POS0 VPORT_POS1 VPORT_POS2 VPORT_POS3 VPORT_POS4 VPORT_POS5 VPORT_POS6 VPORT_POS7 VPORT_POS8 VPORT_POS9 VPORT_POS10 VPORT_POS11 CP_OUT CP_IN VMAIN REF_PORT_NEG DGND2 POWER_GOOD0 MULTIPLEXED WITH GPIO_0 POWER_GOOD1 MULTIPLEXED WITH GPIO_1 POWER_GOOD2 MULTIPLEXED WITH GPIO_4 AGND1 VPORT_NEG6 PORT_SENSE6 FET_G6 FET_G7 PORT_SENSE7 VPORT_NEG7 VPORT_NEG8 Pin Type Gnd Analog I/O Analog I/O Analog I/O Analog I/O Analog I/O Analog I/O Analog I/O Analog I/O Analog I/O Analog I/O Analog I/O Analog I/O Analog I/O Supply Supply Analog I/O GND Digital I/O Digital I/O Digital I/O GND Analog I/O Analog I/O Analog I/O Analog I/O Analog I/O Analog I/O Analog I/O Description Exposed pad connected to underside of die Port 0 positive input Port 1 positive input Port 2 positive input Port 3 positive input Port 4 positive input Port 5 positive input Port 6 positive input Port 7 positive input Port 8 positive input Port 9 positive input Port 10 positive input Port 11 positive input Charge pump output pulse Charge pump input Main Voltage supply Port negative reference Digital ground Power supply monitoring multiplexed with general purpose I/O Power supply monitoring multiplexed with general purpose I/O Power supply monitoring multiplexed with general purpose I/O Analog ground Port 6 negative voltage feeding Channel current monitoring Port 6 – Gate control Port 7 – Gate control Channel current monitoring Port 7 negative voltage feeding Port 8 negative voltage feeding 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 Copyright © 2009 Rev. 1.0, 2009-03-03 Microsemi Page 12 Analog Mixed Signal Group 2381 Morse Avenue, Irvine, CA 92614, USA; Phone (USA): (800) 713-4113, (ROW): (949) 221-7100 Fax: (949) 756-0308 PD69012 - 12 Ports Power Over Ethernet Manager Pin Pin Name PORT_SENSE8 FET_G8 FET_G9 PORT_SENSE9 VPORT_NEG9 VPORT_NEG10 PORT_SENSE10 FET_G10 FET_G11 PORT_SENSE11 VPORT_NEG11 DGND1 DISABLE_PORTS_N CS_N MISO MOSI SCK SCL SDA_OUT MULTIPLEXED WITH TEST_MODE SDA RESET_N IREF ASICINI VCC2P5 I2CINI QGND ADC2P5 EXT_REG VPERI CS_EEPROM_N & LSL MULTIPLEXED WITH INTERRUPT_N Pin Type Analog I/O Analog I/O Analog I/O Analog I/O Analog I/O Analog I/O Analog I/O Analog I/O Analog I/O Analog I/O Analog I/O GND Digital Input Digital I/O Digital I/O Digital I/O Digital I/O Digital Input Digital I/O Description Channel current monitoring Port 8 – Gate control Port 9 – Gate control Channel current monitoring Port 9 negative voltage feeding Port 10 negative voltage feeding Channel current monitoring Port 10 – Gate control Port 11 – Gate control Channel current monitoring Port 11 negative voltage feeding Digital ground Disable All Ports Power – Active Low SPI bus, Chip Select SPI bus, Master Data in/slave out SPI bus, Master Data out/slave in SPI bus, Serial clock I/O I2C bus, Serial Clock Input Third pin in I2C protocol Test Mode Pin – Must be tied to VPERI with pull-up resistor if not used I2C bus, open drain Active Low Reset I/O Current reference Analog input for chip initialization 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 Digital I/O Digital I/O Analog I/O Analog Input Internal Regulator Internal 2.5 v source – not to be used for external devices Analog Input GND Analog input for I2C initialization Quiet analog ground Internal reference ADC reference – not to be used for external devices Analog Out Analog Out Digital Output Open drain External regulation Regulated 3.3 v output voltage source for external devices SPI bus, EEPROM Chip Select & Led Stream Latch (if set) Multiplexed with interrupt out Copyright © 2009 Rev. 1.0, 2009-03-03 Microsemi Page 13 Analog Mixed Signal Group 2381 Morse Avenue, Irvine, CA 92614, USA; Phone (USA): (800) 713-4113, (ROW): (949) 221-7100 Fax: (949) 756-0308 PD69012 - 12 Ports Power Over Ethernet Manager Pin Pin Name LSD MULTIPLEXED WITH GPIO_2 LSC MULTIPLEXED WITH GPIO_3 SENSE_NEG AGND2 VPORT_NEG0 PORT_SENSE0 FET_G0 FET_G1 PORT_SENSE1 VPORT_NEG1 VPORT_NEG2 PORT_SENSE2 FET_G2 FET_G3 PORT_SENSE3 VPORT_NEG3 VPORT_NEG4 PORT_SENSE4 FET_G4 FET_G5 PORT_SENSE5 VPORT_NEG5 Pin Type Digital I/O Digital I/O Analog I/O GND Analog I/O Analog I/O Analog I/O Analog I/O Analog I/O Analog I/O Analog I/O Analog I/O Analog I/O Analog I/O Analog I/O Analog I/O Analog I/O Analog I/O Analog I/O Analog I/O Analog I/O Analog I/O Description LED Stream Data – data out Multiplexed with General purpose I/O Led Stream CLK– CLK out Multiplexed purpose I/O Port sense reference Analog ground Port 0 negative voltage feeding Channel current monitoring Port 0 – Gate control Port 1 – Gate control Channel current monitoring Port 1 negative voltage feeding Port 2 negative voltage feeding Channel current monitoring Port 2 – Gate control Port 3 – Gate control Channel current monitoring Port 3 negative voltage feeding Port 4 negative voltage feeding Channel current monitoring Port 4 – Gate control Port 5 – Gate control Channel current monitoring Port 5 negative voltage feeding with General 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 Copyright © 2009 Rev. 1.0, 2009-03-03 Microsemi Page 14 Analog Mixed Signal Group 2381 Morse Avenue, Irvine, CA 92614, USA; Phone (USA): (800) 713-4113, (ROW): (949) 221-7100 Fax: (949) 756-0308 PD69012 - 12 Ports Power Over Ethernet Manager Configuration Pins _________________________________________ There are two main configuration pins (see Figure 3) utilized in the PD69012. These pins configure the operation mode of the chip and the communication addresses (SPI and I2C) VMain VPeri 3.3v Vperi Vmain Ex _Reg ADC 2P5 R1 R2 ASIC _IN I P D69012 I2C_INI 10k 10k QG N D Figure 3: Electronic Connection of Configuration Pins Copyright © 2009 Rev. 1.0, 2009-03-03 Microsemi Page 15 Analog Mixed Signal Group 2381 Morse Avenue, Irvine, CA 92614, USA; Phone (USA): (800) 713-4113, (ROW): (949) 221-7100 Fax: (949) 756-0308 PD69012 - 12 Ports Power Over Ethernet Manager Application Information _______________________________________ The PD69012 can be integrated into a number of applications such as daughter boards, Ethernet switches or routers. Examples of such applications are described below: Integrated directly into a switch: Facilitates entire PoE concept by including the IC(s) on the main switch’s PCB. Daughter board add-on: The IC is integrated into a small PCB dedicated for PoE, mounted on top of the switch’s main PCB or in the DIMM module Integrated into an RJ45 connector: Saves space on the main board and creates small differences between the PoE and non-PoE versions of a switch Midspans: Stand alone devices, installed between the Ethernet switch and PDs (Powered Devices) such as telephones, cameras, wireless LANs, etc. These Midspans include the PD69012 IC as a PoE control element, destined to inject power over the communication lines. Figure 4 and Figure 5 illustrate an example of basic applications of the PD69012 in an AC Disconnect Mode and the DC Disconnect Mode: Vmain : 44÷ 57 v Vp eri 3.3v Vport_ Pos0 46 .4 K Vport_ Pos Vport_ Neg FET_ gate Vport_ Sense x12 Vport_ Pos Vport_ Neg Vport_ Sense I2 C_ INI Reset Disable Ports_ N _ Interupt_ Out Sense_ Neg MOSI M ISO SCK CS0 EEPROM_ CS LSC LSD PG 0 Ref PG1 PG2 Port Neg 0.5R x12 Vport_Pos 11 Vport_ Neg 11 Fuse Vport_ Neg0 200nF Ext_ Reg CP_ OUT CP_IN VCC2P5 ADC2P5 ASIC_ INI Vper i Vmai n R1 R2 R3 R4 SPI Communication Bus I C Co mmunication Bus 2 SDA SCL SDA_ OUT Iref LED Driving To Power Supplies Power Good Signals Vp eri 3.3 v Add if line is not in use 10K 24.9k 46.4k 22.6k V main Figure 4: Basic Application with AC Disconnect Support Copyright © 2009 Rev. 1.0, 2009-03-03 Microsemi Page 16 Analog Mixed Signal Group 2381 Morse Avenue, Irvine, CA 92614, USA; Phone (USA): (800) 713-4113, (ROW): (949) 221-7100 Fax: (949) 756-0308 PD69012 - 12 Ports Power Over Ethernet Manager Vmain : 44 ÷57 v Vp eri 3.3v Vport_ Pos Vport_Neg FET_ gate Vport_ Sense x12 Vport_ Pos Vport_ Neg Vport_ Sense I2C_ INI Sense_ Neg MOSI M ISO SCK CS0 EEPROM_ CS LSC LSD PG 0 Ref PG1 Port Neg PG2 0 .5 R x12 Vport_Pos 11 Vport_ Neg 11 Fuse Vport_ Neg0 Vport_ Pos0 46 .4K 47 nF Ext_ Reg CP_ OUT CP_ IN VCC2 P5 ADC2 P5 ASIC_ INI Vperi Vmai n R1 R2 R3 R4 Reset Disable_ Ports_N Interupt_ Out SPI Communication Bus LED Driving To Power Supplies Power Good Signals I C Co mmunication Bus 2 SDA SCL SDA_ OUT Iref Vp eri 3 .3 v Add if line is not in use 10K 24.9k 46.4k 22.6k V main Figure 5: Basic Application with DC Disconnect Support Copyright © 2009 Rev. 1.0, 2009-03-03 Microsemi Page 17 Analog Mixed Signal Group 2381 Morse Avenue, Irvine, CA 92614, USA; Phone (USA): (800) 713-4113, (ROW): (949) 221-7100 Fax: (949) 756-0308 PD69012 - 12 Ports Power Over Ethernet Manager This document and the information contained herein may not be modified, by any person other than authorized personnel of Microsemi. No license under any patent, copyright, trade secret or other intellectual property right is granted to or conferred upon you by disclosure or delivery of the information, either expressly, by implication, inducement, estoppels or otherwise. Any license under such intellectual property rights must be approved by Microsemi in writing signed by an officer of Microsemi. Microsemi reserves the right to change the configuration, functionality and performance of its products at anytime without any notice. This product has been subject to limited testing and should not be used in conjunction with life-support or other mission-critical equipment or applications. Microsemi assumes no liability whatsoever, and Microsemi disclaims any express or implied warranty, relating to sale and/or use of Microsemi products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright or other intellectual property right. The product is subject to other terms and conditions which can be located on the web at http://www.microsemi.com/legal/tnc.asp" Revision History Revision Level / Date 0.1 / 03 March 2009 1.0 / 25-Aug-09 Para. Affected Description Initial preliminary release Release © 2009 Microsemi Corp. All rights reserved. For support contact: sales_AMSG@microsemi.com Visit our web site at: www.microsemi.com Cat. No. 06-0078-058 Copyright © 2009 Rev. 1.0, 2009-03-03 Microsemi Page 18 Analog Mixed Signal Group 2381 Morse Avenue, Irvine, CA 92614, USA; Phone (USA): (800) 713-4113, (ROW): (949) 221-7100 Fax: (949) 756-0308