1/7 combi/f3 october 2003 this is preliminary information on a new product now in development. details are subject to change without notice. feature n uko interface (dc) and mains (ac) inputs to enable npm (normal power mode) and rpm (restricted power mode) conditions n input filter to meet emi requirements n peak input overvoltage withstanding n ac input protection fuse n inputs to outputs insulation n 2 insulated outputs: v o1 =3.3 v for nt1 logics v o2 =40 v for s interface n auxiliary logic output ttl- compattible for led & npm/rpm mode indication, share the same ground of v o1 n auxiliary logic output ttl- compattible for led & npm/rpm mode indication, share the same ground of v o2 n internal relay function for v o2 polarity reverse n s interface output characteristics: - 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 n u-interface according to etr080 n s-interface according to ets 300 012 n mtbf: 300 kh, according to mil hdbk 217-f n operating temperature: -10 to +70 o c description the nt1 power management module combi/f3 is a comprehensive solution for isdn-nt1 (network ter- mination basic access ntba) equipment, combining both ac-dc and dc-dc functions. the gs-combi/f3 provide the ntba with all neces- sary supply voltages as well as control signals to op- erate in the different operating modes, typically the normal power mode (npm) and restricted power mode (rpm). connected to the main, input 1 (2 poles ac connec- tor) is the ac input power to the combi/f3, 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 connect to the u- interface. the device supply 3.3v (out 1) for logics and 40v (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 occurs if the mains (ac) input is not available. an internal re- lay 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), referred to 3.3 v output and a fourth auxiliary output can be used for leds driving and rpm/npm type v i v o i o combi/f3 195 to 253 v ac and 28 to 115 v dc out 1:3.3v 100 ma out 2:40v 120 ma ordering number: gs-combi/f3-3.3 rev. 01 power management module for isdn nt1
combi/f3 2/7 mode acknowledge (logic output), referred to 40 v. the logics outputs become high (+3.3v) when in npm condition. the converter offers short-circuit protection on both outputs: particularly, short-circuit on 40v output doesnt af- fect the +3.3v output. 6000 v rms insulation voltage for 60 seconds (reinforced insulation) is provided among input 1 and all outputs. same reinforced insulation is also provided between input 1 and input 2. 3000 v rms / 1 min. reinforced insulation is provided between input 2 and 40 v output. when in npm mode (ac main supply), the module max. power consumption is <15 va (apparent power). input 2 undervoltage lockout offers high impedance in order to have 10 m a max input current when v i2 is <18 volts. th 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 (immunity) itu-t i.430, ets 300 012 and etr 080 and ets300 047 (isdn basic access, safety and protection); anyway, please note that no certification processes have been carried out on the module itself.
3/7 combi/f3 electrical characteristics when in npm (t amb =25 ) c, unless otherwise specified.) npm standard condotion:v in1 =195 to 253 v rms ------------- v in2 =28 to 115 v d symbol parameter test condition min. typ. max. unit v i1 input voltage 1 195 253 v rms v i2 input voltage 2 any polarity 28 115 v dc fi v i1 input frequency v i1 = 230 v rms 43 56 hz v i1st start up input 1 voltage output parameters as per npm standard conditions 185 v rms v i2st start up input 2 voltage output parameters as per standard conditions 28 v dc v o1 output voltage 1 standard conditions 3.1 3.3 3.5 v v o2 output voltage 2 standard conditions 36 40 42 v v o3 output voltage 3 led u standard conditions, i o3 =0.9 to 3 ma 3.0 3.3 3.5 v v o4 output voltage 4 standard conditions, i o4 =1 to 2 ma 2.0 3.0 3.5 v v or1 output ripple voltage 1 standard conditions bw: 0-20 mhz 20 mv rms v o2 output ripple voltage 2 standard conditions bw: 0-20 mhz 100 mv rms i o1 output current 1 standard conditions 3 100 ma i o2 output current 2 standard conditions 0 120 ma i oc2 output overcurrrent 2 t=150ms, v o1 =34 to 42 v 180 220 260 ma i o2sc output 2 short circuit current continuous short circuit 100 150 200 ma v i1th npm => rpm mode v i1 threshold output parameters as per standard conditions 160 v rms t tr transition time transition npm => rpm and vice versa 5ms v i1pk input 1 transient overvoltage t = 8/20 us transversal 2 kv v i2pk input 2 transient overvoltage t = 10/700 us transversal 500 v v o2pk output 1 transient overvoltage t = 10/700 us transversal 1000 v p i1r input 1 real power npm standard conditions 9 w p i1 input 1 apparent power npm standard conditions 15 va v ist insulation voltage, pulse inputs to v o2 output t = 10/700 us (pulse) 10 kv th hold-up time v in = 195 v rms pout 1:0 to 340 mw pout 2:4.5 w 20 ms
combi/f3 4/7 electrical characteristics when in rpm (t amb =25 ) c, unless otherwise specified.) rpm standard condition: v in1 < 100 v rms ------------- v in2 = 28 to 115 v dc symbol parameter test condition min. typ. max. unit v 1 input voltage 1 0 100 v rms v i2 input voltage 2 any polarity 28 115 v dc v i2st start up input 2 voltage 28 v dc v o1 output voltage 1 rpm standard conditions 3.1 3.3 3.5 v v o2 output voltage 2 rpm standard conditions 36 40 42 v v o3, 4 output voltage 3, 4 rpm standard conditions, out 3, 4 load = 50 kohm 0.5 v v or1 output ripple voltage 1 rpm standard conditions bw:0-20 mhz 20 mv rms v or2 output ripple voltage 2 rpm standard conditions bw:0-20 mhz 100 mv rms i o1 output current 1 rpm standard conditions 3 100 ma i o2 output current 2 rpm standard conditions 0 12.5 ma i o2sc output 2 short circuit current continuous short circuit 9 13.5 ma v i1th rpm => npm mode v i1 threshold 185 v rms t rt transition time transition npm => rpm and vice versa 5 ms v i1pk input 1 transient overvoltage t = 8/20 us transversal 2.0 kv v i2pk input 2 transient overvoltage t = 10/700 us transversal 500 v v o2pk out 2 transient overvoltage t = 10/700 us transversal 1000 v v ist insulation voltage, pulse inputs to v o2 output t = 10/700 us (pulse) 10 kv
5/7 combi/f3 figure 1. nt1 power management module top view (dimensions in mm) pin configuration input 1 (vin 1: 230 vac) apply to the wago series connector bottom right in the top view pin no function pin no function 1v i2 input voltage 2 v dc 5v o3 output voltage 3 led u 2v i2 input voltage 2 v dc 6g ndb ground pin for v o2 and v o4 3g nda ground pin for v o1 and v o3 7v o2 output voltage 2 -- ! 40 v -- s 4v o1 output voltage 1 --- 3.3 v dc 8v o4 output voltage 4 led - s
combi/f3 6/7 figure 2. nt1 power management module side view (dimensions in mm)
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. specifications mentioned in this publicati on are subject to change without notice. this publication supersedes and replaces all information previously supplied. stmicroelectronics prod ucts are not authorized for use as critical components in life support devices or systems without express written approval of stmicroelectro nics. the st logo is a registered trademark of stmicroelectronics. all other names are the property of their respective owners ? 2003 stmicroelectronics - all rights reserved stmicroelectronics group of companies australia - belgium - brazil - canada - china - czech republic - finland - france - germany - hong kong - india - israel - ital y - japan - malaysia - malta - morocco - singapore - spain - sweden - switzerland - united kingdom - u.s.a. http://www.st.com 7/7 combi/f3
|
