features uko interface (dc) and mains (ac) inputs to enable npm (normal power mode) and rpm (restricted power mode) conditions input filter to meet emi requirements peak input overvoltage withstand- ing ac input protection fuse inputs to outputs insulation 2 insulated outputs: vo1=5 v for nt1 logics vo2=40 v for "s" interface auxiliary logic output ttl-compat- ible for led & npm/rpm mode indication. ps1 and ps2 output ttl-compatible internal relay function for vo2 po- larity reverse u-interface according to etr080 "s" interface output charac- teristics: - peak output of 220 ma for 150 ms - typical output power 4,5 w - output filtering to meet etsi requirements - hold up time: 20 ms with 4,5 w output power - continuous short circuit protection - peak overvoltage withstand:1kv for 10/700 us transversal s-interface according to ets 300 012 mtbf: 300 kh, according to mil hdbk 217-f operating temperature: -10 to +70 o c may 2001 ? product view ordering number: gs-combi/e1-i combi/e1-i power management module for isdn nt1 specification rev. 02 type vi vo io combi/e1-i 195 to 253 vac and 28 to 115 vdc out1: 5 v 80 ma out 2: 40v 120 ma 1/6
description the nt1 power management module combi/e1- i is a comprehensive solution for isdn-nt1 (net- work termination basic access ntba) equip- ment, combining both ac-dc and dc-dc functions. the gs-combi/e1-i provide the ntba with all necessary supply voltages as well as control sig- nals to operate in the different operating modes, typically the normal power mode (npm) and re- stricted power mode (rpm). connected to the main, input 1 (2 poles ac con- nector) is the ac input power to the combi/e1-i, source of the whole necessary power in normal operating mode, namely in npm. input 2 is the dc power source when in rpm, therefore to con- nect to the u-interface. the device supply 5v (out 1) for logics and 40 v (out 2) for the s interface both in normal power mode (npm) and in restricted power mode (rpm). rpm mode is the emergency condition that oc- curs if the mains (ac) input is not available. an internal "relay function" is available to reverse the 40 v output polarity. a third auxiliary output can be used for leds driving and rpm/npm mode acknowledge (logic output). the logic output becomes high (+5v) when in npm condition. ps1 and ps2 signal overload at the s-interface (ps1 in npm and ps2 in rpm) the converter offers short-circuit protection on both outputs: particularly, short-circuit on 40v out- put doesnt affect the +5v output. out 1, out 2... out 5 share the same common re- turn. 3000 vrms insulation voltage for 60 seconds (re- inforced insulation) is provided among input 1 and all outputs. same reinforced insulation is also provided between input 1 and input 2. 2000 vrms / 1 min. reinforced insulation is pro- vided between input 2 and all outputs. when in npm mode (ac main supply), the mod- ule max. power consumption is <15 va (apparent power). input 2 undervoltage lockout offers high imped- ance in order to have 10 ua max input current when vi2 is <18 volts. the design of the module has been conducted using the following reference standards: en 60950, vde0878 part 1 class b (emc), en55022 class b (emission), en50 082-1 (immu- nity) itu-t i.430, ets 300 012 and etr 080 and ets300 047 (isdn basic access, safety and protection); anyway, please note that no certifica- tion processes have been carried out on the mod- ule itself. combi/e1-i 2/6
electrical characteristics when in npm (tamb=25 o c, unless otherwise specified.) npm standard condition: vin1 = 195 to 253 vrms vin2 = 28 to 115 vdc symbol parameter test condition min. typ. max. unit vi1 input voltage 1 195 253 vrms vi2 input voltage 2 any polarity 28 115 vdc fi vi1 input frequency vi1 = 230 vrms 43 56 hz vi1st start up input 1 voltage output parameters as per npm standard conditions 185 vrms vi2st start up input 2 voltage output parameters as per standards conditions 44 vdc vo1 output voltage 1 standard conditions 4.75 5 5.25 v vo2 output voltage 2 standard conditions 36 40 42 v vo3 output voltage 3 standard conditions, io3=0.9 to 3ma 4.5 5 5.25 v vo4 output voltage 4 vo2 > 34 v (normal load) 4.75 5 5.25 v (ps 2) vo2 < 24v (overload) 4.75 5 5.25 v vo5 output voltage 5 vo2> 34v (normal load) 4.75 5 5.25 v (ps 1) vo2 < 24v (overload) 0.8 v vor1 output ripple voltage 1 standard conditions bw: 0-20 mhz 20 mvrms vor2 output ripple voltage 2 standard conditions bw: 0-20 mhz 100 mvrms io1 output current 1 standard conditions 3 80 ma io2 output current 2 standard conditions 0 120 ma ioc2 output overcurrent 2 t=150ms, vo1=34 to 42 v 220 240 260 ma io2sc output 2 short circuit current continuous short circuit 20 40 60 ma vi1th npm => rpm mode vi1 threshold output parameters as per standard conditions 160 vrms ttr transition time transition npm => rpm and vice versa 5 ms vi1pk input 1 transient overvoltage t = 8/20 us transversal 2 kv vi2pk input 2 transient overvoltage t= 10/700 us transversal 500 v vo2pk output 1 transient overvoltage t = 10/700 us transversal 1000 v pi1r input 1 real power npm standard conditions 9 w pi1 input 1 apparent power npm standard conditions 15 va vist insulation voltage, pulse inputs to outputs t=10/700 us (pulse) 4 kv th hold-up time vin=195 vrms pout 1:0 to 340 mw pout 2: 4.5 w 20 ms combi/e1-i 3/6
electrical characteristics when in rpm (tamb=25 o c, unless otherwise specified.) rpm standard condition: vin1 < 100 vrms vin2 = 28 to 115 vdc symbol parameter test condition min. typ. max. unit vi1 input voltage 1 0 100 vrms vi2 input voltage 2 any polarity 28 115 vdc vi2st start up input 2 voltage 44 vdc vo1 output voltage 1 rpm standard conditions 4.75 5 5.25 v vo2 output voltage 2 rpm standard conditions 34 40 42 v vo3 output voltage 3 rpm standard conditions, out 3 load=50 kohm 0.8 v vo4 output voltage 4 vo2 > 34v (normal load) 4.75 5 5.25 v (ps 2) vo2 < 24v (overload) 0.8 v vo5 output voltage 5 vo2 > 34v (normal load) 0.8 v (ps 1) vo2 < 24v (overload) 0.8 v vor1 output ripple voltage 1 rpm standard conditions bw:0-20 mhz 20 mvrms vor2 output ripple voltage 2 rpm standard conditions bw:0-20 mhz 100 mvrms io1 output current 1 rpm standard conditions 3 80 ma io2 output current 2 rpm standard conditions 0 12.5 ma io2sc output 2 short circuit current continuous short circuit 9 13.5 ma vi1th rpm=>npm mode vi1 threshold 185 vrms ttr transition time transition npm => rpm and vice versa 5 ms vi1pk input 1 transient overvoltage t = 8/20 us transversal 2.0 kv combi/e1-i 4/6
combi/e1-i power management module top view (dimensions in mm pin configuration input 1 (vin 1: 230vac) apply to the wago series connector bottom right in the top view pin no function pin no function 1 dc "u inteface" input (in 2) 5 out 2: +/-40 v output 2 dc"u inteface" input (in 2) 6 out 3: logic output (npm) 3 out 1: +5v output 7 out 4: ps 2 4 out common ground gnd 8 out 5: ps 1 combi/e1-i 5/6
information furnished is believed to be accurate and reliable. however, stmicroelectronics assumes no responsibility for the co nsequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. no license is granted by implication or otherwise under any patent or patent rights of stmicroelectronics. specification mentioned in this pu blication are subject to change without notice. this publication supersedes and replaces all information previously supplied. stmicroelectron ics products are not authorized for use as critical components in life support devices or systems without express written approval of stmicr oelectronics. the st logo is a registered trademark of stmicroelectronics ? 2001 stmicroelectronics C printed in italy C all rights reserved stmicroelectronics group of companies australia - brazil - china - finland - france - germany - hong kong - india - italy - japan - malaysia - malta - morocco - singapore - spain - sweden - switzerland - united kingdom - u.s.a. http://www.st.com combi/e1-i power management module side view (dimensions in mm) combi/e1-i 6/6
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