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| 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 D D D D Adjustable and retriggerable tracking time Window monitoring for sensor input Enable input for triggering Internal noise suppression (40 ms) and retrigger blocking (640 ms) Applications D Motion detectors D Touch sensors D Timer D Two- or three-wire applications Block Diagram 8 -VRef C2 0.5 VRef + - Trigger signal 6 Trigger window + - 5 0.65 VRef 1 Enable Ct 7 RC Oscillator Rt Divider 1:210 GND 0.6 VRef 0.5 VRef ON OFF N Supply voltage limitation Voltage control monitoring Sync Mode selection 2 -VS 4 C1 L R1 Rsync Load Noise suppression 40 ms Retrigger delay 640 ms Z D1 Control logic 3 Output RG Vmains Figure 1. Block diagram with external circuit Ordering Information Extended Type Number U2100B-x U2100B-xFP U2100B-xFPG3 Package DIP8 SO8 SO8 Remarks Tube Tube Taped and reeled Rev. A2, 09-Nov-99 1 (8) U2100B Pin Description GND 1 -VS 2 8 VRef 7 Osc 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 U2100B Output 3 Sync 4 Figure 2. Pinning 6 TRIG 5 EN General Description The monostable integrated power-control circuit U2100B can be used according to the mode selection in relay or triac applications. Beyond that, it can be used in triac applications for two-wire system as power switch (the load in series to the switch), where the supply voltage for the control unit is gained from phase rest angle (amin-operation). L For three-wire switch systems, two operation modes 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 the external voltage at the sync. input Pin 4 (clamping). Mode selection determines the current requirement of the relay's or triac's driver stage and hence the selection of supply voltage. Control Zero Voltage Switch Operation (Figure 5) Selection condition: V4 = internal sync. limitation, without external clamping R1 [ 0.85 V2 -V I M tot S N Figure 3. Two-wire circuit Itot = IS + Ip + IX where: IS = Supply current of IC without load = Average trigger current IG IP IX = External circuit current requirement VM = Mains voltage Required firing pulse width tp Control tp 2 + w arcsin IL P VM 2 L where: IL = Triac latching current P = Power at load Z N Figure 4. Three-wire circuit R sync[kW] [ V [V] M 2 sin 1.8 w 10 t p[s] - 0.7 -2 -176 2 (8) Rev. A2, 09-Nov-99 U2100B amin-Operation (Figure 7) 2 -VS D1 R1 L C1 4 Sync Z VM Rsync Selection condition: -V4 = 6.5 to 7.8 V +V4 = int. limitation R amax 3 Output 1 GND RG IG N +R +R sync 3.6 V V R(peak)-3.6 V 10 V 2 -10 V R amin sync VM VR(peak) is the peak voltage of the rest phase angle, which should be high enough to generate the supply voltage, VS. Figure 5. Zero voltage switch operation DC Operation (Figure 6) Selection condition: +V4 = 6.1 V -V4 = int. limitation whereas: R0 D1 IN 4007 C1 BZX85 C22V Rsync X [ 1 10 X V -V X + 0.85 I I +I )I )I 1 C+ wX c M S c tot tot S Rel 0 C 2 -VS Co Ro Z L 4 Sync Ra VM 230 V~ 1N4148 BZX55 6V8 3 Output RG IG 1 GND 4xBYX86 VM Co 230 V~ L Ro VR(peak) 2 -VS C1 1 GND BZX85C22V N N Rel 3 Output IRel Rsync 4 Sync Figure 7. amin operation (two wire operation) 100 0.33 390 220 kW 10 kW 390 IN 4007 Figure 6. DC operation C1 Co Ro Rsync Ra RG D1 = = = = = = = mF/35 V mF/250 V W W Rev. A2, 09-Nov-99 3 (8) U2100B Tracking Time Pin 7 An internal RC oscillator with following divider stage 1:210 allows a very long and reproducible tracking time. RC-values for required final time, tt, can be calculated as follows: t t [s] 10 6 R t [W] 1.6 1024 C t [mF] V5 0 OFF T1 = 0.5 VRef Hysteresis T2 = 0.65 VRef ON t t [s] VRef Figure 8. Trigger condition, Pin 5 + C t [mF] + 10 t t[s] 1.6 1024 R t [W] 6 t + C [mF] R t [W] 10 6 1.6 1024 Trigger Inputs Pins 5 and 6 (Figures 8, 9) Two AND-connected, identical inputs determine the trigger conditions of the 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. The noise suppression for tON = 40 ms guarantees that there are 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. V6 0 ON OFF Ref + 0.5 V T + 0.65 V T1 2 Ref ON VRef Figure 9. Trigger condition, Pin 6 Absolute Maximum Ratings Reference point Pin 1, unless otherwise specified Parameters Supply Supply current Peak current t 10 Supply voltage Reference voltage source Output current Synchronization Input current t 10 Window monitoring Input voltage Enable Schmitt trigger Input voltage Driver output Collector voltage Storage temperature range Junction temperature Ambient temperature range Pin 2 Symbol -IS -is -VS Pin 8 IO Pin 4 ISync. iSync. -V1 -V1 Pin 3 -Vo Tstg Tj Tamb VS to 2 -40 to +125 125 0 to 100 V C C C 3 5 20 VRef to 0 VRef to 0 mA mA mA V V Value 10 60 32 Unit mA mA V ms ms Pin 6 Pin 5 4 (8) Rev. A2, 09-Nov-99 U2100B Thermal Resistance Junction ambient Parameters DIP8 SO8 on PC board SO8 on ceramic Symbol RthJA RthJA RthJA Value 110 220 140 Unit K/W K/W K/W Electrical Characteristics VS = -18 V, Tamb = 25C, reference point Pin 1, unless otherwise specified Parameters Test Conditions / Pins Supply-voltage limitation 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 Synchronization Pin 4 Input current Voltage limitation I4 = 1 mA Rest phase angle ON amin-threshold Off Zero-identification Pin 4 Zero-identification ON OFF Operation selection Zero voltage switch amin-operation DC mode Window monitoring figure 9 Threshold 1 Threshold 2 Enable Schmitt trigger, figure 8 Threshold 1 OFF Threshold 2 ON Oscillator f Pin 6 -VI/VRef -VI/VRef Pin 5 -VI/VRef -VI/VRef 1 Rt Ct Pin 7 - 1 Pin 7 - 8 Pin 7 Pin 3 0.52 0.67 0.33 0.62 0.49 0.65 0.3 0.6 0.46 0.63 0.27 0.58 Pin 4 Vsync +Vsync -Vsync -Vsync +Vsync V4 limit V4 limit 6.5 to 7.8 V4 limit 6.5 to 7.8 V V V V Symbol -VS -VS -IS -VS -VS -VRef -VRef isync Vsync VT VT VT IT VT IT Min 21 21.3 Typ Max 23 24 750 Unit V V mA V V V V 15 6.5 4.75 4.55 0.1 8.8 3.6 1.8 5.25 5.25 1.1 10 4.4 2.2 9.4 4 2 1.5 8.5 4 20 mA V V V mA mA V V + 1.6 Threshold 1 Threshold 2 Input current Output stage limiter diode Saturation voltage I3 = 100 mA Output current VI/VRef VI II V3-2 I3 0.25 0.20 100 100 0.15 200 500 2 mV nA V mA 100 Rev. A2, 09-Nov-99 5 (8) U2100B Applications N 1 390W Ro TIC226 R3 220 kW / 0.5 W D3 1N 4148 D2 BZX85C22 L Figure 10. Lamp time control 18 sec. to 23 min. for two-wire systems 8 330 nF Co 330 nF 1N4007 D1 -VS 2 7 390W 3 R2 4 R7 10 kW U2100B 6 C3 Timer start 5 R5 33 kW + S1 D4 5.1 V BZX55 100 C1 mF Tracking time 2.5 MW R6 33 kW C2 4.7 R4 - mF N M R2 5 R7 6 100 kW C3 330 nF S1 330 nF Co 390W Ro 4 100 kW 3 U2100B 7 8 R5 33 kW D1 BZX85C22 2.5 MW Tracking time adjustment Figure 11. Fan tracking time control 18 sec. to 23 min. 2 1 D1 C1 100 100 kW C2 4.7 R6 R4 mF REL 1000W S1 open, motor starts L mF 6 (8) Rev. A2, 09-Nov-99 U2100B Package Information Package DIP8 Dimensions in mm 9.8 9.5 1.64 1.44 7.77 7.47 4.8 max 6.4 max 0.5 min 0.58 0.48 7.62 8 5 2.54 3.3 0.36 max 9.8 8.2 technical drawings according to DIN specifications 1 4 Package SO8 Dimensions in mm 5.00 4.85 1.4 0.4 1.27 3.81 8 5 0.25 0.10 0.2 3.8 6.15 5.85 5.2 4.8 3.7 technical drawings according to DIN specifications 1 4 Rev. A2, 09-Nov-99 7 (8) U2100B Ozone Depleting Substances Policy Statement It is the policy of TEMIC Semiconductor 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 Semiconductor GmbH 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 Semiconductor GmbH 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 Semiconductors products for any unintended or unauthorized application, the buyer shall indemnify TEMIC Semiconductors 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 Semiconductor GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany Telephone: 49 ( 0 ) 7131 67 2594, Fax number: 49 ( 0 ) 7131 67 2423 8 (8) Rev. A2, 09-Nov-99 |
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