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ltp 5900-whm 1 5900whmfa for more information www.linear.com/ltp5900-whm typical application network features description smartmesh wirelesshart node wireless mote module smartmesh wirelesshart wireless sensor networks are self managing, low power networks built from wireless nodes called motes. the lt p ?5900-whm is the 22- pin wirelesshart mote product in the eterna ? * family of ieee 802.15.4 printed circuit board assembly solutions, featuring a highly-integrated, low power radio design by dust networks ? as well as an arm cortex-m 3 32- bit microprocessor running dusts embedded smartmesh wirelesshart networking software. the lt p 5900-whm provides a forward compatible solution for customers using dust networks m2510 pcb module. with dusts time-synchronized wirelesshart networks, all motes in the network may route, source or terminate data, while providing many years of battery powered op - eration. the smartmesh wirelesshart software provided with the lt p 5900-whm is fully tested and validated, and is readily configured via a software application program - ming interface (api). smartmesh wirelesshart motes deliver a highly flexible network with proven reliability and low power performance in an easy-to-integrate platform.l , lt , lt c , lt m , eterna, smartmesh, linear technology, the linear logo, dust and dust networks are registered trademarks and lt p and the dust networks logo are trademarks of linear technology corporation. all other trademarks are the property of their respective owners. protected by u .s. patents, including 7375594, 7420980, 7529217, 7791419, 7881239, 7898322, 8222965. * eterna is dust networks low power radio soc architecture. n complete radio transceiver, embedded processor, and networking software for forming a self-healing mesh network n compliant to wirelesshart (iec62591) standard n smartmesh ? networks incorporate: n time synchronized network-wide scheduling n per transmission frequency hopping n redundant spatially diverse topologies n network-wide reliability and power optimization n nist certified security n smartmesh networks deliver: n >99.999% network reliability achieved in the most challenging dynamic rf environments often found in industrial applications n sub 50a routing nodes n industry-leading low power radio technology with: n 4.5 ma to receive a packet n 5.4 ma to transmit at 0dbm n 9.7 ma to transmit at 8dbm n rf modular certifications include usa, canada, and eu n 24 mm 39mm, 22-pin pcb assembly with mmcx antenna connector ltp5900-whm features 5900whm ta01 controller expanded view mote in+inC spi lt c ? 2379-18 manager mote mote mote mote ltp5903-whr uart uart ethernet antenna host application sensor ltp5900-whm downloaded from: http:///
ltp 5900-whm 2 5900whmfa for more information www.linear.com/ltp5900-whm pin configuration absolute maximum ratings supply voltage (v dd to v ss ) ................... C0.3 v to 4.20 v voltage on any digital i/o pin . v ss C 0.3 v to v dd + 0.3 v input rf level , input power at antenna connector ......... 10 dbm storage temperature range .................. C55 c to 105 c vswr of antenna ...................................................... 3:1 operating temperature range ................. C40 c to 85 c (notes 1, 2) v ss v dd key (no pin)rx tx reserved mt_rts mt_cts sp_cts time mode pin b 12 3 4 5 6 7 8 9 1011 2221 20 19 18 17 16 15 14 13 12 rst spi_cs key (no pin) misomosi sck reserved reserved reserved reserved flash_p_en antenna connector pc package 22-lead (39mm 24.4mm) pcb top view order information lead free finish? part marking package description temperature range lt p 5900ipc-whma#pbf lt p 5900ipc-whma#pbf 22-lead (39mm 24.4mm) pcb C40c to 85c ?this product ships with the flash erased at the time of order. oems will need to program devices during development and manufacturing. for legacy part numbers and ordering information, go to: http://www.linear.com/product/ lt p 5900-whm#orderinfo for more information on lead free part marking, go to: http://www.linear.com/leadfree/ parameter conditions min typ max units dc specifications operational supply voltage range (between v dd and v ss ) including noise and load regulation 2.75 3.76 v voltage supply noise 50hz to 2mhz 250 mv p-p voltage supervisor trip point reset trip point 1.5 v supply current, peak searching for network, typically 150ms on and 2850ms in doze (note 2) 4.5 ma supply current, peak during power on reset maximum 750us + v dd rise time from 1v to 1.9v 12 ma supply current, peak power amplifier enabled tx, 5ms maximum 9.7 ma tx, 5ms maximum, 85c (note 7) 12 ma peak current power amplifier disabled tx, 5ms maximum 5.4 ma specifications are at t a = 25c, v dd = 3.6v unless otherwise noted. electrical characteristics downloaded from: http:///
ltp 5900-whm 3 5900whmfa for more information www.linear.com/ltp5900-whm electrical characteristics specifications are at t a = 25c, v dd = 3.6v unless otherwise noted. specifications are at ?40c to 85c, v dd = 3.6v unless otherwise noted. parameter conditons min typ max units digital signalsv il (low level input voltage) C0.3 0.6 v v ih (high level input voltage) v dd C 0.3 v dd + 0.3 v v ol (low level output voltage) i ol(max) = 1.2ma 0.4 v v oh (high level output voltage) i oh(max) = ?1.8ma v dd C 0.3 v input leakage current 25c 50 na radio specifications operating frequency (note 7) 2.4000 2.4835 ghz number of channels 15 channel separation 5 mhz occupied channel bandwidth at C20dbc 2.7 mhz frequency accuracy (note 7) C40 40 ppm modulation ieee 802.15.4 dsss raw data rate 250 kbps receiver operating maximum input level 0 dbm receiver sensitivity at 50% per, v dd = 3v, 25c at 1% per, v dd = 3v, 25c C95.0 C92.5 dbm dbm output power, conducted power amplifier enabled power amplifier disabled v dd = 3.6v, 25c v dd = 3.6v, 25c 8 0 dbm dbm range (note 3) power amplifier enabled: indoor (note 4) outdoor (note 4) free space power amplifier disabled: indoor (note 4) outdoor (note 4) free space 25c, 50% rh, 2dbi omni-directional antenna, 2m above ground 100 300 1200 25 200 350 meters meters meters meters meters meters parameter conditions min typ max units maximum allowed temperature ramp during operation C40c to 85c 8 c/min operating relative humidity non-condensing 10 90 % rh current consumption supply current, transmit power amplifier enabled power amplifier disabled 9.7 5.4 ma ma supply current, receive 4.5 ma device load total capacitance v dd to v ss (note 7) 6 f total inductance v dd to v ss (note 7) 4.9 h downloaded from: http:///
ltp 5900-whm 4 5900whmfa for more information www.linear.com/ltp5900-whm antenna specifications parameter value frequency range 2.4ghz to 2.4835ghz impedance 50? maximum vswr 3:1 connector mmcx (note 5) when the mote is placed inside an enclosure, the antenna should be mounted such that the radiating portion of the antenna protrudes from the enclosure. the antenna should be connected using a mmcx connector on a coaxial cable. for optimum performance, the antenna should be positioned vertically when installed. a mmcx - compatible male connector is provided on board for the antenna connection . the antenna must meet the following specifications. for a list of fcc-approved antennae, see the fcc-approved antennae section. note 1: the absolute maximum ratings shown should not be violated under any circumstances. permanent damage to the device may be caused by exceeding one or more of these parameters. note 2: esd (electrostatic discharge) sensitive device. esd protection devices are used extensively internal to the lt p 5900. however, high electrostatic discharge can damage or degrade the device. use proper esd handling precautions. note 3: the duration of doze time and on time is determined by the joindutycycle command in the mote serial api. refer to the smartmesh wirelesshart mote serial api guide for details. note 4: actual rf range performance is subject to a number of installation-specific variables including, but not restricted to ambient temperature, relative humidity, presence of active interference sources, line-of-sight obstacles, near-presence of objects (for example, trees, walls, signage, and so on) that may induce multipath fading. as a result, actual performance varies for each instance. note 5: 1 meter above ground. note 6: the lt p 5900-whm can accommodate the following rf mating connectors: mmcx straight connector such as johnson 135-3402-001, or equivalent; mmcx right angle connector such as tyco 1408149-1, or equivalent. note 7: guaranteed by design. not production tested. pin functions v ss (pin 1): ground. i/o type = power. v dd (pin 2): power. i/o type = power. key (pins 3, 20): no pin. rx (pin 4): uart rx. i/o type = 1. direction = in. tx ( pin 5): uart tx. i/o type = 1. direction = out. pin state in deep sleep = v dd . deep sleep is the lowest pos- sible power state, with v dd and gnd connected. the mote microprocessor and radio are inactive, and the mote must be awakened using the rst signal ( for more information see the lowpowersleep command in the wirelesshart mote serial api guide). reserved (pins 6, 13, 14, 15, 16): no connection. mt_ rts ( pin 7): uart active low mote ready to send. i/o type = 1. direction = out. pin state in deep sleep = v dd . deep sleep is the lowest possible power state, with v dd and gnd connected. the mote microprocessor and radio are inactive, and the mote must be awakened using the rst signal ( for more information see the lowpowersleep command in the wirelesshart mote serial api guide). mt_cts ( pin 8): uart active low external processor clear to send. i/o type = 1. direction = out. pin state in deep sleep = v dd . deep sleep is the lowest possible power state, with v dd and gnd connected. the mote mi- croprocessor and radio are inactive, and the mote must be awakened using the rst signal ( for more information see the lowpowersleep command in the wirelesshart mote serial api guide). sp_cts ( pin 9): uart active low serial peripheral clear to send. i/o type = 1. direction = in.time ( pin 10): falling edge time request. i/o type = 1. direction = in. the time input pin is optional, and must either be driven or pulled up with a 5.1 m resistor. unless noted otherwise, all signals are active low. mode_pin_b ( pin 11): selects between mode 1 and mode 3 operation. i/o type = 1. direction = in.flash_p_en ( pin 12): active low flash power enable. i/o type = 1. direction = in. sck (pin 17): spi clock. i/o type = 1. direction = in. downloaded from: http:///
ltp 5900-whm 5 5900whmfa for more information www.linear.com/ltp5900-whm pin functions mosi ( pin 18): spi master out slave in serial data. i/o type = 1. direction = in.miso ( pin 19): spi master in slave out serial data. i/o type = 1. direction = out.spi_cs ( pin 21): active low flash chip select. i/o type = 1. direction = in. rst ( pin 22): active low reset. i/o type = 1. direction = in. the rst input pin is internally pulled up and con - necting it is optional. when driven active low, the mote is hardware reset until the signal is de-asserted. refer to the power - on sequence section for timing requirements on the rst pin. note that the mote may also be reset using the mote serial command ( see the smartmesh wirelesshart mote serial api guide). block diagram 5900whm bd ltp5900-whm intelligent networking platform power management v cc gnd rst mode b uart i/o ? ? ? network synchronized real time clock serial cfg and mgmnt network data crc flow control serial data voltage supervisor packet queue transmit queue receive queue wireless channel management crystal oscillators power supply info join duty cycle boot current control encryption and authentication ieee 802.15.4e mac rssi ieee 802.15.4 phy rf design power amplifier balun antenna matching circuitry antenna connector temperature compensation drift compensation downloaded from: http:///
ltp 5900-whm 6 5900whmfa for more information www.linear.com/ltp5900-whm power-on sequencethe lt p 5900-whm has internal power-on reset circuits that ensure that the mote will properly boot. external reset - ting of the device is not required and not recommended. table 1. power-on sequence parameter comments min typ max units rst pulse width reset timing 125 s inrush current during power on, the mote can be modeled as a lumped impedance, as shown in figure 1. with a source impedance (r src ) of 1, the inrush current on the mote appears as shown in figure 2. 5900whm f01 1.4 mote equivalent series rc circuit 2.4f 0.4 r src v src + 2.2f figure 1. lt p 5900-whm equivalent series rc circuit time (s) 0 current (ma) 500 1250 1500 50 5900whm f02 250 0 20 40 10 30 2000 1750 1000 750 figure 2. v dd inrush current (power-on with supply impedance of 1) 5900whm f03 power applied t window time current figure 3. boot sequence mote boot sequence following the negation of rst the mote completes its boot-up process by loading the application image and loading the operating parameters. the lt p 5900-whm lowers average current consumption by spreading the boot operation over time. this method supports systems with supplies having a maximum dc current less than the peak current required by the lt p 5900-whm. these systems must store enough charge to maintain the supply through the lt p 5900-whms peak current consumption. for more information, contact your linear technology applications engineer. the maximum average current consumption for the lt p 5900-whm is defined by the maximum total charge q consumed over a sliding window in time, t window . mote boot up table 2. boot sequence parameters parameter comments min typ max units t boot_delay the time between mote power greater than 1.9v and serial interface availability 3 5 sec q t window = 0.56s 200 c serial interface boot up lt p 5900-whm serial interface boot up upon ltp5900-whm power up, the mt_cts line is high ( inactive). the ltp5900-whm serial interface boots within t boot_delay ( see the mote boot sequence section) of the mote powering up, at which time the lt p 5900-whm will transmit an hdlc boot event packet. note that full hand - shake is in effect and is required to receive this packet. downloaded from: http:///
ltp 5900-whm 7 5900whmfa for more information www.linear.com/ltp5900-whm interfaces reset pinthe rst input pin is internally pulled up. connecting it is optional; however, in applications operating in the pres - ence of emi, rst should be actively driven high. when driven low, the mote hardware is in reset. note that the mote may also be reset using the mote reset command (008). for requirements on reset timing, see the mote boot up section. the lt p 5900-whm is a highly sophisticated device and linear technology recommends doing resets gracefully. if the device is in the network, a disconnect command (007) should be issued before the rst signal is asserted. this will result in the device rebooting and sending the boot event. the rst signal may then be asserted since the device is not in the network. refer to the lt p 5900-whm integration guide for recom - mendations on how to connect to the rst pin, including voltage supervision. for detailed information about mote serial commands, refer to the smartmesh wirelesshart mote serial api guide. timestamps the lt p 5900-whm has the ability to deliver network-wide synchronized timestamps. the lt p 5900-whm sends a time packet ( as described in the smartmesh wirelesshart mote serial api guide) through its serial interface when one of the following occurs: ? mote receives an hdlc request to read time ? the time signal is asserted the time pin is optional and has the advantage of being more accurate. the value of the timestamp is taken within approximately 1 ms of receiving a time signal activation. if the hdlc request is used, due to packet processing the value of the timestamp may be captured several millisec - onds after receipt of the packet. refer to the smartmesh wirelesshart mote serial api guide for more information on timestamps. table 3. time timing values variable description min max units t strobe time strobe pulse width 125 s t response negation of time strobe to start of time packet 100 ms settable i/o modes the lt p 5900-whm offers a choice of two i/o modes. the functionality of the interface will be determined by the setting of mode pin b whose pinout is described in the pin functions section. table 4. mode pin settings pin mode 1 mode 3 mode_pin_b externally tied low externally tied high all modes provide a means of transmitting and receiving serial data through the wireless network, as well as a com - mand interface that provides synchronized time stamping, local configuration, and diagnostics. mode 1 implements an 8- bit, no parity , 9600 bps baud three-, four- or five - signal serial interface with bidirectional packet-level flow control operating at 9600 bps. in certain oem designs, one or two of the serial handshake signals may be optional for reduced pin count, as described in table 5. mode 3 implements an 8- bit, no parity , 115.2 kbps baud five-signal serial interface with bidirectional packet-level flow control and byte-level flow control in the mote-to- microprocessor direction only.mode 1: three/four/five-signal serial interface (9600bps) the ltp5900-whm mode 1 provides a three-, four-, or five-signal serial interface that is optimized for low powered embedded applications ( and in certain designs 5900whm f04 time packet t strobe t response time tx figure 4. operation of time pin downloaded from: http:///
ltp 5900-whm 8 5900whmfa for more information www.linear.com/ltp5900-whm interfaces table 5. mode 1 pin usage pin i/o usage rx input serial data moving from the microprocessor to the mote. tx output serial data moving from the mote to the microprocessor. mt_ rts output mt_rts provides a mechanism to wake up the microprocessor in order to receive a packet. this signal is asserted when the mote is ready to send a serial packet. the signal stays low until the signal from the microprocessor is detected low by the mote (indicating readiness to receive a packet) or the t mt_rts to sp_cts timeout defined in the uart ac timing section expires. if mt_rts times out, it will de-assert , wait for t mt_rts retry and then re-assert to attempt to send the serial packet again (see figure 8). mt_ rts may be ignored by the microprocessor only if always stays low. sp_cts input sp_cts provides packet-level flow control for packets transferred from the mote to the microprocessor. when the microprocessor is capable of receiving a packet it should assert the sp_cts signal. sp_cts may be externally tied low (reducing pin count) only if the microprocessor is always ready to receive a serial packet. mt_cts output mt_cts provides packet-level flow control for packets transferred from the microprocessor to the mote that are destined for transfer over the network. upon reset, following boot the mote will negate mt_cts until the mote establishes a wireless network connection. during operation, the mote will negate mt_cts if the mote does not have sufficient buffering to accept another packet. mt_cts will also remain high if the mote is not part of the network. the microprocessor must check that the mt_cts pin is low before initiating each serial packet for wireless transmission. note that the mote may receive local serial packets at any time regardless of the mt_cts state. (for a list of local commands, see the smartmesh wirelesshart mote serial api guide.) time input the time pin can be used for triggering a timestamp packet. its usage is optional. table 6. mode 3 pin usage pin i/o usage rx input serial data moving from the microprocessor to the mote. tx output serial data moving from the mote to the microprocessor. mt_ rts output mt_rts provides a mechanism to wake up the microprocessor in order to receive a packet. this signal is asserted when the mote is ready to send a serial packet. the signal stays low until the sp_cts signal from the microprocessor is detected low by the mote (indicating readiness to receive a packet) or the t mt_rts to sp_cts timeout defined in the uart ac timing section expires. if mt_rts times out, it will de-assert mt_rts , wait for t mt_rts retry and then re-assert mt_ rts to attempt to send the serial packet again (see figure 8). sp_cts input sp_cts provides byte-level flow control for packets transferred from the mote to the microprocessor. when the microprocessor is capable of receiving a packet it should assert the sp_cts signal. in mode 3 byte-level flow control is achieved by having the microprocessor negate and then reassert the sp_cts signal following the receipt of each byte. the mote will begin transmission of the next byte after detecting the reassertion of sp_cts . mt_cts output mt_cts provides packet-level flow control for packets transferred from the microprocessor to the mote that are destined for transfer over the network. upon reset, following boot the mote will negate mt_cts until the mote establishes a wireless network connection. during operation, the mote will negate mt_cts if the mote does not have sufficient buffering to accept another packet. mt_cts will also remain high if the mote is not part of the network. the microprocessor must check that the mt_cts pin is low before initiating each serial packet for wireless transmission. note that the mote may receive local serial packets at any time regardless of the mt_cts state. for a list of local commands, see the smartmesh wirelesshart mote serial api guide. time input the time pin can be used for triggering a timestamp packet. its usage is optional. may provide a low pin count serial solution). the mode 1 serial interface is comprised of the data pins ( tx, rx) as well as handshake pins ( mt_rts , mt_cts , sp_cts ) used for bidirectional flow control. the mt_ rts signal is ideal for designs where the microprocessor requires extra time to prepare to receive a packet ( for example, the oem microprocessor sleeps periodically, but requires a wake- up signal prior to receiving a packet). refer to table 5 for information on each handshake pin, including details on which pins are optional. downloaded from: http:///
ltp 5900-whm 9 5900whmfa for more information www.linear.com/ltp5900-whm table 7. uart timing values (note 7) variable description min max units t rx_baud deviation from baud rate C2 2 % t rx_stop number of stop bits (9600bps) 1 bit period t rx_stop number of stop bits (115.2kbps) 1.5 bit period t tx_baud deviation from baud rate C1 1 % t tx_stop number of stop bits 1 bit period t sp_cts to mt_ rts assertion of sp_cts to negation of mt_ rts 0 10 ms t mt_rts to sp_cts assertion of mt_rts to assertion of sp_cts 500 ms t mt_ rts retry time from a mt_ rts timeout to the retry. 500 ms t sp_cts to tx assertion of sp_cts to start of byte 0 10 ms t tx to sp_cts start of byte to negation of sp_cts 1 bit period t sp_cts ack pw negation pulse width of sp_cts 500 ns t diag_ack_timeout * the mote responds to all requests within this time. 125 ms t interbyte_timeout falling edge of tx to falling edge of sp_cts (mode 3 only) 7.1 ms t interpacket_delay the sender of an hdlc packet must wait at least this amount of time before sending another packet 20 ms * for more information about supported requests and details on when t diag _ ack _ timeout applies, refer to the smartmesh wirelesshart mote serial api guide . 5900whm f05 hi-zhi-z hi-z t boot_delay mt_rts rst mt_cts tx figure 5. power-on sequence. see the mote boot sequence section for the value of t boot_delay interfaces mode 3: five-signal serial interface (115.2kbps) the ltp5900-whm mode 3 provides a five-signal serial interface with byte-level flow control on transfers from the mote to the microprocessor. the mode 3 serial interface is comprised of the data pins ( tx, rx) as well as handshake pins ( mt_rts , mt_cts , sp_cts ) used for bidirectional flow control. the mt_ rts signal is ideal for designs where the microprocessor requires extra time to prepare to receive a packet ( for example, the oem microprocessor sleeps periodically, but requires a wake-up signal prior to receiving a packet. refer to table 6 for information on each handshake pin , including details on which pins are optional . uart ac timing downloaded from: http:///
ltp 5900-whm 10 5900whmfa for more information www.linear.com/ltp5900-whm 5900whm f06 lsb lsb msb msb stop stop t tx_baud tx rx t tx_stop t rx_baud t tx_stop 5900whm f07 tx t sp_cts to mt_rts t mt_rts to sp_cts t sp_cts ack pw t tx to sp_cts t interbyte_timeout t sp_cts to tx 07e 07e byte 0 mt_rts sp_cts 5900whm f08 t mt_rts to sp_cts t mt_rts retry mt_rts sp_cts figure 6. byte-level timing figure 7. flow control timing figure 8. mt_ rts timeout behavior 5900whm f09 rx t interpacket_delay 0 7e* packet n * the framing byte, 0 7e, must not be repeated at the start of each packet sent to the ltp5900. 0 7e byte n byte 0 0 7e* packet n+1 figure 9. packet timing interfaces downloaded from: http:///
ltp 5900-whm 11 5900whmfa for more information www.linear.com/ltp5900-whm mote serial apithe lt p 5900-whm offers a comprehensive application programming interface ( api) that provides full program - matic access to control the mote, monitor its status ( such as battery charge and network status), and provide access to the wireless mesh network. refer to the smartmesh wirelesshart mote serial api guide for more information . temperature sensor the lt p 5900-whm has an onboard temperature sensor. the temperature readings are available locally through the mote serial api and through the network at the manager via the xml api. for more information, refer to the smart - mesh wirelesshart mote serial api guide, smartmesh wirelesshart manager api guide. table 8. temperature sensor parameter min typ max units sensor input range C40 85 c accuracy 7 c interfaces software installation devices are supplied with the flash erased, requiring pro - gramming as part of the oems manufacturing procedure . the us department of commerce places restrictions on export of systems and software supporting encryption . all of linear / dust product software produced to date contains encryption and is subject to export regulations and may be provided only via mylinear , https://www.linear.com/ mylinear . customers purchasing smartmesh products will receive a certificate containing a registration key and registration instructions with their order. after registering with the key, customers will be able to download smart - mesh software images from mylinear . once registered, customers will receive automated e-mail notifications as software updates are made available. linear technology offers the dc9010 , in circuit program - mer for the eterna based products. while the dc9010 , is provided as a finished product, the design documents are provided as a reference for customers. once software has been loaded, devices can be configured via the api port. configuration commands and settings are defined in smartmesh wirelesshart mote api guide . downloaded from: http:///
ltp 5900-whm 12 5900whmfa for more information www.linear.com/ltp5900-whm regulatory and standards compliance radio certification the lt p 5900 has been certified under a single modular cer - tification, with the module name of eterna1. following the regulatory requirements provided in the eterna1 users guide enables customers to ship products in the supported geographies, by simply completing an unintentional radia - tor scan of the finished product(s). the eterna1 users guide also provides the technical information needed to enable customers to further certify either the modules or products based upon the modules in geographies that have not or do not support modular certification. compliance to restriction of hazardous substances (rohs) restriction of hazardous substances 2 ( rohs 2) is a directive that places maximum concentration limits on the use of certain hazardous substances in electrical and electronic equipment. linear technology is committed to meeting the requirements of the european community directive 2011/65/eu. this product has been specifically designed to utilize rohs-compliant materials and to eliminate or reduce the use of restricted materials to comply with 2011/65/eu. the rohs-compliant design features include: n rohs-compliant solder for solder joints n rohs-compliant base metal alloys n rohs-compliant precious metal plating n rohs-compliant cable assemblies and connector choices n halogen-free mold compound n rohs-compliant and 245 c re-flow compatible note: customers may elect to use certain types of lead- free solder alloys in accordance with the european com - munity directive 2011/65/ eu. depending on the type of solder paste chosen, a corresponding process change to optimize reflow temperatures may be required. soldering information the lt p 5900 is suitable for both eutectic pbsn and rohs- 6 reflow. the maximum reflow soldering temperature is 260c. a more detailed description of layout recommen - dations, assembly procedures and design considerations is included in the lt p 5900 hardware integration guide . industrial environment operation the lt p 5900-whm is designed to meet the specifications of harsh industrial environments which includes:? shock and vibration the lt p 5900-whm complies with high vibration pipeline testing, as specified in iec 61298-3. ? temperature extremes the lt p 5900-whm is de - signed for industrial storage and operational temperature range of C40c to 85c. encryption cipher the lt p 5900-whms 128- bit advanced encryption stan - dard ( aes) cipher has been certified compliant to the united states national institute of standards and technology (nist) fips -197 ( nist certificate number, aes : 1437). to view the fips-197 validation list, go to: http://csrc.nist. gov/groups/stm/cavp/documents/aes/aesval.html applications information downloaded from: http:///
ltp 5900-whm 13 5900whmfa for more information www.linear.com/ltp5900-whm ? lt p 5900-whm integration guide ? smartmesh wirelesshart mote serial api guide related documentation downloaded from: http:///
ltp 5900-whm 14 5900whmfa for more information www.linear.com/ltp5900-whm package description pc package 22-lead (39mm 24.4mm) pcb (reference ltc dwg # 05-08-1001 rev d) please refer to http:// www .linear.com/product/ lt p 5900-whm#packaging for the most recent package drawings. downloaded from: http:///
ltp 5900-whm 15 5900whmfa for more information www.linear.com/ltp5900-whm information furnished by linear technology corporation is believed to be accurate and reliable. however, no responsibility is assumed for its use. linear technology corporation makes no representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. revision history rev date description page number a 01/16 added software installation section. 11 downloaded from: http:///
ltp 5900-whm 16 5900whmfa for more information www.linear.com/ltp5900-whm ? linear technology corporation 2014 lt 0116 rev a ? printed in usa linear technology corporation 1630 mccarthy blvd., milpitas, ca 95035-7417 (408) 432-1900 fax : (408) 434-0507 www.linear.com/ltp5900-whm related parts typical application part number description comments lt p 5903ipc-whrb wirelesshart embedded 250 mote manager manages networks of up to 250 smartmesh wirelesshart nodes ltc5800-whm wirelesshart mote ultralow power mote, 72-lead 10mm 10mm qfn ltc2379-18 18-bit, 1.6msps/1msps/500ksps/250ksps serial, low power adc 2.5v supply, differential input, 101.2db snr, 5v input range, dgc lt6654 precision high output drive low noise reference 1.6ppm peak-to-peak noise (0.1hz to 10hz, sink/source 10ma, 5ppm/c max drift mesh network thermistor 5900whm ta02 ltc5900-whm atmel sam4l2 tadiran tl-5903 li-soci 2 v ss v dd tx mt_rts mt_cts rx sp_cts pa15 (usart1_rxd) pa17 (extint2) pa13 (gpo13) pa16 (usart1_txd) pa18 (extint3) antenna vddin 0.1f 0.1f 47f rt = 5k ? ai_0 / (2 ? ai_1 C ai_0) t(c) = 1 / {a + b [ln(rt)] + c[ln(rt)] 3 } C 273.15 a = 1.032 ? 10 C3 b = 2.387 ? 10 C4 c = 1.580 ? 10 C7 vddio 0.1f 4.7f vddana pa08 (gp08) pa04 (ad0) pa05 (ad1) advrefp xin32 vddoutvddcore gnd 0.1f fb 0.1f 4.7f 22h xout32 v in gnd2 v out gnd1 lt6654-2.048 0.1f 1000pf 10k0.2c omega 44006 5k 0.1% 1000pf 32.768khz 5k0.1% 5k 0.1% downloaded from: http:///

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