U2100B Timer Control for Triac and Relay Description The timer control circuit, U2100B, uses bipolar technology. It has different mode selections (Zero voltage switch, Phase control, Relay control). The output stage is triggered according to input conditions. It can be used in triac application for two or three wire system as a power switch. Features Applications D Adjustable and retriggerable tracking time D Motion detectors D Touch sensors D Timer D Window monitoring for sensor input D Enable input for triggering D Internal noise suppression (40 ms) and retrigger blocking (640 ms) D Two or three wire application Package: DIP8, SO8 8 –VRef C2 Voltage control monitoring 0.5 VRef 6 Noise suppression 40 ms Retrigger delay 640 ms Trigger window + – 5 –VS Sync Mode selection 4 L R1 D1 Rsync Load + – Trigger signal C1 2 Supply voltage limitation Control logic RG 3 Z Vmains Output 0.6 VRef 1 GND Enable Ct 0.6 VRef 0.5 VRef N ON OFF 7 RC Oscillator Divider 1:210 Rt 95 9876 Figure 1. Block diagram with external circuit TELEFUNKEN Semiconductors Rev. A1, 30-May-96 1 (9) U2100B Pin Description GND 1 8 VRef –VS 2 7 Osc Output 3 6 TRIG Sync 4 5 EN Pin 1 2 3 4 5 6 7 8 Symbol GND –VS Output Sync EN TRIG Osc VRef Function Reference point Supply voltage Driver output Synchronisation and mode selection Enable Input trigger signal RC Oscillator Reference voltage 95 9945 General Description Monostable integrated power control circuit, U2100B, can be used according to mode selection in relay’s or triac’s applications. Beyond that, it can be used in triacapplication for two wire system as power switch, (being the load in series to the switch) whereas the supply voltage for the control unit is gained from phase rest angle (amin-operation). L Control For three wire switch, two modes of operations are possible: – Zero voltage switch operation for triac control – Static operation for relay control Mode Selection Pin 4 and Supply Voltage Pin 2 Operation modes can be selected by external voltage at the sync. input Pin 4 (clamping). Mode selection determines the current requirement of driver stage for relay’s or triac’s and hence the selection of supply voltage. Zero Voltage Switch Operation, Figure 4 Selection condition: V4 = internal sync limitation, without external clamping R1 [ 0.85 V2 –V I M S tot 95 9949 N Itot = IS + Ip + IX Figure 2. Two wire circuit L whereas: = Supply current of IC without load IS = Average trigger current IG IP IX = External circuit current requirement VM = Mains voltage ǒ Ǔ Required firing pulse width tp Control tp + w2 arcsin IL P Ǹ2 VM whereas: = Triac latching current IL P = Power at load Z N 95 9950 Figure 3. Three wire circuit 2 (9) R sync[kW] [ V [V] M Ǹ2 sin ǒw 1.8 10 Ǔ t p[s] – 0.7 –2 –176 TELEFUNKEN Semiconductors Rev. A1, 30-May-96 U2100B amin-operation, Figure 6 D1 2 –VS R1 L Selection condition: C1 4 –V4 = 6.5 to 7.8 V Rsync +V4 = int. limitation Sync Z 3 Output VM R amax +R R amin +R sync 3.6 V V R(peak)–3.6 V RG IG 1 GND sync Ǹ 10 V 2 –10 V VM N VR(peak) is the peak voltage of the rest phase angle, which should be high enough to generate the supply voltage, VS. 95 9951 Figure 4. DC Operation, Figure 5 Selection condition: +V4 = 6.1 V –V4 = int. limitation 2 whereas: [ 1ń10 X V –V X + 0.85 I I +I )I )I 1 C + w X R0 Rel BZX85 C22V VM Rsync Ra X 230 V~ 1N4148 BZX55 6V8 0 VR(peak) 3 Output C RG 2 Z L 4 Sync S tot S Ro C1 c tot Co –VS c M D1 IN 4007 IG 1 GND BZX85C22V N –VS N VM 1 GND 230 V~ Co Rel 3 Output 95 9953 4xBYX86 C1 L Ro Figure 6. IRel Rsync 4 Sync 95 9952 Figure 5. TELEFUNKEN Semiconductors Rev. A1, 30-May-96 C1 Co Ro Rsync Ra RG D1 = = = = = = = 100 mF/35 V 0.33 mF/250 V 390 W 220 kW 10 kW 390 W IN 4007 3 (9) U2100B Tracking Time Pin 7 An internal RC oscillator with following divider stage 1:210 allows a very long and reproducible tracking time. V5 RC-values for required final time, tt, can be calculated as follows: R t [W] C t [mF] t t [s] OFF [s] 10 + 1.6 t1024 C [mF] t 6 T1 = 0.5 VRef t Hysteresis T2 = 0.6 VRef [s] 10 + 1.6 t1024 R [W] t 0 6 ON t + C [mF] t R t [W] 10 6 VRef 1.6 1024 95 9954 Figure 7. Trigger condition, Pin 5 Trigger Inputs Pins 5 and 6, Figures 7 and 8 Two AND-connected, identical inputs determine the trigger conditions of monostable time stages, i.e., both inputs must be in position “ON” so that the output is switched ON. The tracking time starts after the trigger conditions has elapsed. The output ON state is given until the tracking time is over. Input Pin 5 is a simple comparator whereas input Pin 6 is built up as a window discriminator. Noise suppression for tON = 40 ms guarantee, that there is no peak noise signals at the inputs which could trigger the circuit. At the same time, the retrigger is delayed for a duration of 640 ms (tOFF), to avoid noise signal to trigger the relay. 4 (9) V6 0 + 0.5 V + 0.65 V T1 T2 ON Ref OFF Ref ON VRef 95 995 Figure 8. Trigger condition, Pin 6 TELEFUNKEN Semiconductors Rev. A1, 30-May-96 U2100B Absolute Maximum Ratings Reference point Pin 1, unless otherwise specified Parameters Supply Supply current Peak current t ≤ 10 ms Supply voltage Reference voltage source Output current Synchronization Input current t ≤ 10 ms Window monitoring Input voltage Enable-Schmitt trigger Input voltage Driver output Collector voltage Storage temperature range Junction temperature Ambient temperature range Symbol Value Unit –IS –is –VS 10 60 32 mA IO 3 mA ±ISync. iSync. 5 20 mA –V1 VRef to 0 V –V1 VRef to 0 V –Vo Tstg Tj Tamb VS to 2 –40 to +125 125 0 to 100 V °C °C °C Symbol Value Unit RthJA 110 220 140 K/W Pin 2 V Pin 8 Pin 4 Pin 6 Pin 5 Pin 3 Thermal Resistance Parameters Junction ambient DIP8 SO8 on PC board SO8 on ceramic Electrical Characteristics VS = –18 V, Tamb = 25°C, reference point Pin 1, unless otherwise specified Parameters Supply voltage limitation Test Conditions / Pins IS = 800 mA Pin 2 IS = 2 mA Current consumption I3 = 0 Supply voltage monitoring Pin 2 ON-Threshold OFF-Threshold Reference voltage I8 = 0.1 mA Pin 8 I8 = 1.5 mA TELEFUNKEN Semiconductors Rev. A1, 30-May-96 Symbol –VS Min 21 21.3 Typ –IS –VS –VS –VRef Max 23 24 750 15 6.5 4.75 4.55 5.25 5.25 Unit V mA V V V 5 (9) U2100B Parameters Synchronization Input current Voltage limitation Rest phase angle amin-threshold Zero-identification Zero-identification Test Conditions / Pins Pin 4 I4 = ± 1 mA ON Off Operation selection Zero voltage switch amin-operation Typ Max Unit ± isync ±Vsync ±VT ±VT 0.1 8.8 3.6 1.8 9.4 4 2 1.1 10 4.4 2.2 mA V V V ±VT ±IT ±VT ±IT 1.5 8.5 4 20 ±Vsync +Vsync –Vsync –Vsync +Vsync V4 limit V4 limit 6.5 to 7.8 V4 limit 6.5 to 7.8 V mA V mA Pin 4 DC mode Window monitoring figure 4 Threshold 1 Threshold 2 Enable-Schmitt trigger Threshold 1 OFF Threshold 2 ON f + 1.6 Threshold 1 Threshold 2 Input current Output stage limiter diode w.r.t. Pin 1 Saturation voltage I3 = 100 mA Output current 6 (9) Min Pin 4 ON OFF Oscillator Symbol V V Pin 6 –VI/VRef –VI/VRef 0.52 0.67 0.49 0.65 0.46 0.63 –VI/VRef –VI/VRef 0.33 0.62 0.3 0.6 0.27 0.58 VI/VRef VI II 0.25 0.20 100 100 0.15 200 500 Pin 5 1 Rt Ct Pin 7 – 1 Pin 7 – 8 Pin 7 Pin 3 V3–2 I3 2 100 mV nA V mA TELEFUNKEN Semiconductors Rev. A1, 30-May-96 U2100B Applications N 95 9956 1 390 Co 1N4007 8 330 nF –VS D1 2 Ro 390 330 nF TIC226 R3 7 U2100B C3 3 6 R2 Timer start 4 220 k / 0.5 W D3 1N 4148 R7 10 k S1 R5 Tracking time 2.5 M C1 D4 5.1 V BZX55 100 F D2 BZX85C22 5 33 k + R6 33 k R4 C2 4.7 F – L Figure 9. Lamp time control 18 sec. to 23 min. for two wire systems N M 95 9957 R2 5 4 R7 100 k Co 390 Ro 3 6 100 k C3 330 nF U2100B 7 2 8 1 330 nF S1 R5 100 k C2 4.7 F D1 33 k D1 BZX85C22 R6 R4 2.5 M C1 100 F REL 1000 Tracking time adjustment S1 open, motor starts L Figure 10. Fan tracking time control 18 sec. to 23 min. TELEFUNKEN Semiconductors Rev. A1, 30-May-96 7 (9) U2100B Dimensions in mm Package: DIP8 94 8862 Package: SO8 94 8873 8 (9) TELEFUNKEN Semiconductors Rev. A1, 30-May-96 U2100B Ozone Depleting Substances Policy Statement It is the policy of TEMIC TELEFUNKEN microelectronic GmbH to 1. Meet all present and future national and international statutory requirements. 2. Regularly and continuously improve the performance of our products, processes, distribution and operating systems with respect to their impact on the health and safety of our employees and the public, as well as their impact on the environment. It is particular concern to control or eliminate releases of those substances into the atmosphere which are known as ozone depleting substances ( ODSs). The Montreal Protocol ( 1987) and its London Amendments ( 1990) intend to severely restrict the use of ODSs and forbid their use within the next ten years. Various national and international initiatives are pressing for an earlier ban on these substances. TEMIC TELEFUNKEN microelectronic GmbH semiconductor division has been able to use its policy of continuous improvements to eliminate the use of ODSs listed in the following documents. 1. Annex A, B and list of transitional substances of the Montreal Protocol and the London Amendments respectively 2 . Class I and II ozone depleting substances in the Clean Air Act Amendments of 1990 by the Environmental Protection Agency ( EPA) in the USA 3. Council Decision 88/540/EEC and 91/690/EEC Annex A, B and C ( transitional substances ) respectively. TEMIC can certify that our semiconductors are not manufactured with ozone depleting substances and do not contain such substances. We reserve the right to make changes to improve technical design and may do so without further notice. Parameters can vary in different applications. All operating parameters must be validated for each customer application by the customer. Should the buyer use TEMIC products for any unintended or unauthorized application, the buyer shall indemnify TEMIC against all claims, costs, damages, and expenses, arising out of, directly or indirectly, any claim of personal damage, injury or death associated with such unintended or unauthorized use. TEMIC TELEFUNKEN microelectronic GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany Telephone: 49 ( 0 ) 7131 67 2831, Fax number: 49 ( 0 ) 7131 67 2423 TELEFUNKEN Semiconductors Rev. A1, 30-May-96 9 (9)