ge preliminary data sheet november 20, 2012 ?2012 general electric company. all rights reserved. car1248tn series rectifier input: 90vac to 264vac; output: -54vdc @ 1200w features ? universal input with pfc ? constant power characteristic ? 3 front panel leds: 1-input;2-output; 3 - fault ? remote on/off control of the -54vdc output ? remote sense on the -54vdc output ? no minimum load requirements ? redundant parallel operation ? active load sharing (single wire) ? hot plug-ability ? efficiency: typically 91% @ 50% load ? auto recoverable oc & ot protection ? operating temperature: 0 - 70 ? c (de-rated above 50 ? c) ? digital status & control: i 2 c serial bus ? en/iec/ul60950-1 2 nd edition; ul, csa and vde ? emi: class a fcc docket 20780 part 15, en55022 ? meets en6100 immunity and transient standards ? shock & vibration: nebs gr-63-core, level 3 applications ? -48vdc distributed power architectures ? cellular base stations ? blade servers ? network equipment ? network attached storage ? telecom access nodes ? routers/switches ? broadband switches ? ate equipment description the car1248tn series of rectifiers provide highly efficien t isolated -54vdc power from worldwide input mains in a compact density of 19w/in 3 within a 1u industry standard form factor. the high-density, front-to-back airflow is designed for minimal space utilization and is highly expandable for future growth. i 2 c communications offers remote cont rol and monitoring capabilities.
ge car1248tn series rectifier input: 90vac to 264vac; output: -54vdc @ 1200w november 20, 2012 ?2012 general electric company. all rights reserved. page 2 absolute maximum ratings stresses in excess of the absolute maximum ratings can cause pe rmanent damage to the device. these are absolute stress ratings only, functional operation of the device is not implied at these or any other cond itions in excess of those given in the operations sections of the data sheet. exposure to absolute maximum ratings for extended periods can adversely affect the device reliability. parameter device symbol min max unit input voltage: continuous all v in 0 264 v ac operating ambient temperature t a -10 70 1 c storage temperature t stg -40 85 c i/o isolation voltage to frame (100% factory hi-pot tested) 1500 v ac electrical specifications unless otherwise indicated, specifications apply over all operating input voltage, load, and temperature conditions. input parameter device symbol min typ max unit operational range all v in 90 110/230 264 v ac frequency range f in 47 50/60 63 hz main output turn_off v in 70 80 v ac maximum input current v in = 180v ac i in 7.9 12.75 a ac (v o = v o, set , i o =i o, max ) v in = 100v ac cold start inrush current i in 40 a peak (excluding x-caps, 25 ? c, <10ms, per etsi 300-132) efficiency vin= 230v ac ? 90 85 % (t amb =25 ? c, v out = -54vdc, i o =i o, max ) vin= 90v ac power factor (v in =230v ac , i o =i o, max ) pf 0.99 holdup time v in = 230v ac (v out = -54vdc, t amb 25 ? c, i o =i o, max ) v in = 90v ac t 16.7 20 ms early warning prior to loss of dc output below regulation 2 ms ride through t 8.3 ms leakage current (v in = 250v ac , fin = 60hz) i in 3 ma rms isolation input/output 3000 v ac input/frame 1500 v ac output/frame 500 v dc -54v dc main output parameter device symbol min typ max unit output power high line operation 180 ? 264 v ac all w 0 - 1200 w low line operation 90 ? 132v ac 0 - 1000 w set point v out -53.9 -54.00 -54.1 v dc overall regulation (load, temperature, aging) -3 +3 % ripple and noise 2 540 mv p-p 32 dbrnc turn-on overshoot +3 % 1 derated above 50 ? c at 2.5%/ ? c 2 measured across a 10f electrolytic and a 0.1f ceramic capacitors in parallel. 20mhz bandwidth
ge car1248tn series rectifier input: 90vac to 264vac; output: -54vdc @ 1200w november 20, 2012 ?2012 general electric company. all rights reserved. page 3 -54v dc main output (continued) parameter device symbol min typ max unit turn-on delay all t 2 sec remote on/off delay time 40 ms turn-on rise time (10 ? 90% of v out ) 50 ms transient response 50% step [10%-60%, 50% - 100%] (di/dt ? 1a/s, recovery 300s) v out -5 +5 %v out programmable range (hardware & software) -42 -58 v dc overvoltage protection, latched (reset by cycling off/on via hardware or software) i out -58 -59 -60 v dc output current v in ? high line v in ? low line 0 22.2 18.5 a dc power/current limit v in ? high line v in ? low line p out 1200 1000 w power limit down to -48vdc current limit below -48vdc, hiccup (programmable level) i out 113 130 % of fl active current share i out -10 +10 % of fl environmental, reliability parameter min typ max units notes ambient temperature operating altitude operating power derating -10 3 50 2250 2.5 c m %/c air inlet from sea level to 5,000 feet. 7400 ft 51c to 70 ? c storage altitude non-operating -40 85 8200 c m 30,000 ft over temperature protection 120 / 110 c shutdown / restart humidity operating storage 30 10 95 95 % relative humidity, non-condensing shock and vibration acceleration 6 grms nebs gr-63-core, level 3, 20 -2000hz, minimum 30 minutes earthquake rating 4 zone nebs gr-63-core, all floors, seismic zone 4 designed and tested to meet nebs specifications. mtbf 100,000 200,000 hrs full load, 50 ? c ambient, per bellcore rpp demonstrated 3 the unit will start up at -40 ? c but is not guaranteed to meet specification limits until it is within the operating ambient range.
ge car1248tn series rectifier input: 90vac to 264vac; output: -54vdc @ 1200w november 20, 2012 ?2012 general electric company. all rights reserved. page 4 emc parameter criteria standard level test ac input conducted emissions en55022, fcc docket 20780 part 15, subpart j a 0.15 ? 30mhz radiated emissions** en55022 a 30 ? 10000mhz voltage dips en61000-4-11 a -30%, 10ms b -60%, 100ms b -100%, 5sec voltage surge en61000-4-5 a 4kv, 1.2/50s, common mode a 2kv, 1.2/50s, differential mode immunity fast transients en61000-4-4 b 5/50ns, 2kv (common mode) enclosure immunity conducted rf fields en61000-4-6 a 130dbv, 0.15-80mhz, 80% am radiated rf fields en61000-4-3 a 10v/m, 80-1000mhz, 80% am env 50140 a esd en61000-4-2 b 4kv contact, 8kv air ** radiated emissions compliance is contingent upon the final system configuration. status and control signal definitions all signals and outputs are referenced to output return. these include ?vstb return? and ?signal return?. input signals voltage programming (v prog ): an analog voltage on this signal can vary the output voltage from -42vdc to -58vdc. the equation of this signal is: v out = 20x (v prog ) 2.1 < v prog < 2.9 if vprog is 4v, or left open the programming signal is ignored and the unit output is set at the setpoint of -54vdc. load share (ishare): single wire analog signal between power supplies connected in parallel. the ishare pins should be tied together for power supplies. no resistors or capacitors should get connected to this pin. remote on/off: controls the presence of the main -54vdc output voltage. this is an open collector, ttl level control signal. this signal needs to be pulled hi externally through a resistor. maximum collector volt age is 12vdc, maximum sink current is 1ma. logic 1 turns on the -54vdc output, while a logic 0 turns off the -54vdc output. a turn off command either through this signal or firmware commanded would turn off the -54v output. enable: this is a short signal pin that controls the presence of the -54vdc main output. this pin should be connected to ?output return? on the system side of the output connector. the purpose of this pin is to ensure that the output turns on after engagement of the power blades and turns off prior to disengagement of the power blades. write protect (wp): this signal protects the contents of the external eeprom. when left open the eeprom is write protected. a lo permits writing to the eeprom. this signal is pulled hi internally by the power supply. output signals output current monitor (imon): a voltage level proportional to the output current is present on this pin. the signal level is 0. 2v per amp 0.25v. ac ok: ttl compatible open collector. maximum sink current 20ma, max voltage is 12vdc. a (hi) on this signal indicates that the input voltage is present within limits. dc ok: ttl compatible, open collector. maximum sink current 20ma, max voltage is 12vdc. a (hi) on this signal indicates that the output voltage is present. over temp warning: ttl compatible, open collector. maximum sink current 20ma, ma x voltage is 12vdc. a (hi) on this signal indicates that temperatures are normal. if an over temperature should occur, this signal would delay pulling lo for approximately 10 seconds. the unit would restart if internal temperatures recover within normal operational levels. fault: ttl compatible, open collector. maximum sink current 20ma, max voltage is 12vdc. a (hi) on this signal indicates that no faults are present. this signal activates for otp, ovp, or ac fault. ps present: connected to ?output return?. its intent is to indicate to the system that a power supply is present. this signal may need to be pulled hi externally through a resistor. interrupt: a ttl compatible status signal, representing the smbusalert# feature of the i 2 c protocol in the power supply. this signal needs to be pulled hi externally through a resistor. maximum sink current 4ma and the pull up resistor should be tied to <5vdc. open collector (hi) on this signal indicates that no interrupt has been triggered.
ge car1248tn series rectifier input: 90vac to 264vac; output: -54vdc @ 1200w november 20, 2012 ?2012 general electric company. all rights reserved. page 5 serial bus communications ? car1248tn the i2c interface facilitates the monitoring and control of various operating parameters within the unit and transmits these on demand over an industry standard i2c serial bus. all signals are referenced to ?signal return?. device addressing: the microcontroller (mcu) and the eeprom have the following addresses: device address bit assignments (most to least significant) mcu 1 0 1 1 a2 a1 a0 r/w eeprom 1 0 1 0 a2 a1 a0 r/w address lines (a2, a1, a0): up to eight (8) modules to be addressed on a single i2c bus. the pins are pulled hi internal to the power supply. for a logic lo connect to ?output return? serial clock (scl): host generated, this signal needs to be pulled up externally ensuring that rise and fall time timing and the maximum sink current is in compliance to the i2c specification. serial data (sda): this is a bi-directional line that needs to be pulled up externally ensuring that rise and fall time timing and the maximum sink current is in compliance to the i2c specification. command code: all registers are 16 bits, written as lsb followed by msb. all a/d?s are 10 bit (1024 steps). all constants can be fine-tuned to compensate for manufacturing tolerances; name cmd access default /name bits constant vout 00 r -54 0.102 iout 01 r - 0.042 temperature 02 r - 0.005 on/off 03 r/w 1 ? off, 0 ? on ilimit 04 r/w 25 0.042 vset 05 r/w -54 0.094 vprog 06 r vout= 20 x vprog ot trip 07 r/w 120 0.005 ot recover 08 r/w 110 0.005 dc_ok_hi 09 r/w 55.6 0.102 dc_ok_lo 0a r/w 52.4 0.102 status 0b r input 0 1-ll ac_ok 1 1-normal dc_ok 2 ot 3 fault 4 intrpt 5 ov 6 dc_int 7 firmware 0c r eeprom 0d- 7c r/w vout [00]: output voltage read back, returns the voltage on the anode side of the or?ing function, data lsb followed by msb. the default value is -54vdc example; readback 0211h, convert into its decimal equivalent and then multiply by the constant, vout = 529 x 0.102 = 54vdc iout [01]: output current read back, data lsb followed by msb. example; readback 021fh, convert into its decimal equivalent and multiply by the constant, iout=543 x 0.042 = 22.8a temperature [02]: temperature read back, data lsb followed by msb. example; readback 037bh, convert into its decimal equivalent and multiply by the constant, temp = 891 x 0.005 = 4.36. in the table below this corresponds to 25 ? c data temp ? c data temp ? c data temp ? c 4.83 -5 3.71 45 1.7 95 4.78 0 3.51 50 1.54 100 4.72 5 3.3 55 1.4 105 4.65 10 3.09 60 1.26 110 4.56 15 2.88 65 1.14 115 4.46 20 2.67 70 1.03 120 4.35 25 2.46 75 0.93 125 4.21 30 2.25 80 0.84 130 4.06 35 2.06 85 3.89 40 1.88 90 on/off [03]: a logic ?1? turns off the -54v output of the power supply. ilim [04]: this feature lowers the current limit from the default values of 0253h (595), corresponding to 25a at high line and 01efh (495) corresponding to 20.8a at low line. the delivered output current cannot exceed the maximum power capacity of the unit. at high line the power supply is limited to 1200w, thus, at -48vdc the output current is limited to 25a. example: at high line, reduce the current limit to 20a. compute the data to be sent to the controller; 20 / 0.042 = 476. the hex equivalent of this decimal data is 01dch. the data should be sent across the bus as lsb [dc] followed by msb [01]. vset [05]: changes the output voltage via i2c, if the vprog hardware signal is > 4vdc. if the vprog pin voltage level is < 4vdc, this command is ignored. the output voltage setting must be between -42 ? -58vdc. the default value is 023eh, corresponding to -54vdc. example; set the output to 48vdc. compute the data to be sent to the controller; 48 / 0.094 = 510. the hex equivalent of this decimal data is 01feh. the data should be sent across the bus as lsb [fe] followed by msb [01].
ge car1248tn series rectifier input: 90vac to 264vac; output: -54vdc @ 1200w november 20, 2012 ?2012 general electric company. all rights reserved. page 6 vprog [06]; reads back the hardware configured analog voltage program value via i2c. the value of vprog can range from 2.1v to 2.8v. example: set the output to 44vdc. from the equation determine that vprog = 2.2. the 10bit d/a is set for the range of 0 ? 5vdc, therefore with a resolution of 1024 bits each bit is 0.00488v. so the corresponding value to enter is 2.2/0.00488 = 451 decimal. this corresponds to 01c3h. the data should be sent across the bus as lsb [c3] followed by msb [01]. ot trip[07] and ot recover[08]; configures the ot shutdown and recovery levels. the default values are; ot trip: 120 ? c corresponds to 1.03/0.005 = d3h ot recover: 110 ? c that corresponds to 1.26/0.00488 = 0102h example: change the recovery temperature to 100 ? c. in the look up table above the corresponding level is 1.54. divide by the conversion ration, 1.54/0.00488 = 315 dec. converting to its hex equivalent yields 013b hex. the data should be sent across the bus as lsb [3b] followed by msb [01]. dc_ok_hi[09] and dc_ok_lo[0a]: changes the dc_ok signal comparator level. the default values are; dc_ok_hi: 0221h, corresponding to 55.6v dc_ok_lo: 0201h, corresponding to 52.4v example: change the upper level of comparison to 55v. determine the corresponding register value setting; 55/0.102 = 539dec. this is equivalent to 021bh. the data should be sent across the bus as lsb [1b] followed by msb [02]. status [0b]: all read backs are two bytes and so read back two bytes but ignore the msb. firmware [0c]: reads back the latest firmware revision. mcueeprom [0d ? 7c]: 125 bytes of information may be stored in the eeprom section of the micro controller starting from register location 0dh. each byte of data needs to be stored into its specific register location, one byte at a time. external eeprom a separate eeprom, with its own i2c address and with write_protect capability, provides 128 bytes of memory. this is a standard i2c compliant generic eeprom with a single byte for its memory location. standard i2c command structure applies. the following fru_id information is stored in this eeprom start location length value description 00h 7 serial number, ascii 07h 1 20h space 08h 4 date code [yyww] ascii 0ch 1 20h space 0dh 17 code car1248tnbxxz01a ascii 1eh 1 20h space 1fh 1 revision leds three leds are located on the front faceplate. the ac_ok led provides visual indication of the input signal function. when the led is on green the power supply input is within normal design limits. when the dc_ok led is green the dc output is present. when the fault_led is red then a fault condition exists and the power supply may not provide output power. the table below further defines these states: alarm table test condition led indicator monitoring signals ac ok dc ok fault fault dc ok ac ok temp ok 1 normal operation green green off high high high high 2 low or no input off off off high low low high 3 ovp green off red low low high high 4 over current green off red high low high high 5 over temp fault green off red low low high low note: test condition #2 has 2 modules working in parallel. one module is running and the other has no ac.
ge car1248tn series rectifier input: 90vac to 264vac; output: -54vdc @ 1200w november 20, 2012 ?2012 general electric company. all rights reserved. page 7 outline drawing
ge car1248tn series rectifier input: 90vac to 264vac; output: -54vdc @ 1200w contact us for more information, call us at usa/canada: +1 888 546 3243 , or +1 972 244 9288 asia-pacific: +86.021.54279977*808 europe, middle-east and africa: +49.89.878067-280 india: +91.80.28411633 www.ge.com/powerelectronics november 20, 2012 ?2012 general electric company. all rights reserved. page 8 connector fci berg p/n: 51939-070 mating connector: fci berg p/n: 51915-050 pin function pin function pin function pin function a1 n/c b1 fault c1 ishare d1 vprog a2 n/c b2 i monitor (imon) c2 n/c d2 ovp test point a3 signal return b3 enable: ?0? ?on ?1? -off c3 over temp warning d3 remote on/off a4 write protect (wp) b4 ps present c4 i 2 c address (a0) d4 dc ok a5 remote sense (+) b5 sda (i 2 c bus) c5 i 2 c address (a1) d5 ac ok a6 remote sense (-) b6 scl (i 2 c bus) c6 i 2 c address (a2) d6 interrupt p1 line p2 neutral p3 chassis p4 +vout p5 output return ordering information please contact your ge energy sales representative for pricing, availability and optional features. product description part number 1200w front-end -54vout front-end CAR1248TNXXXZ01A 1200w front-end -54vout front-end, w/bezel car1248tnbxxz01a 1200w front-end -54vout front-end, w/bezel, i2c communications car1248tnbcxz01a
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