U2010B

U2010B TEMIC | Alldatasheet

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Technical content

Features

/C0068Full wave current sensing /C0068Mains supply variation compensated /C0068Programmable load-current limitation with over- and high-load output /C0068Variable soft-start /C0068V oltage and current synchronization /C0068Automatic retriggering switchable /C0068Triggering pulse typical 125 mA /C0068Internal supply voltage monitoring /C0068Current requirement /C0118 3 mA /C0068Temperature compensated reference voltage

Applications

/C0068Advanced motor control /C0068Grinder /C0068Drilling machine Block Diagram 96 11646 Automatic retriggering Limiting detector Current detector V oltage detector Phase control unit /C0246 = f (V4) Mains voltage compensation Reference voltage V oltage monitoring 2 4 Load current detector Full wave rectifier Output Programmable overload protection /C0097max Auto– start B A Imax C 100% 70% Level shift Supply voltageHigh load Soft start 14 13 12 11 3 5 67 8 Overload GND Pulse output Figure 1. Block diagram

230 V ~

1 M /C0087Overload

4.7 F/C0109

22 F/C0109

Figure 2. Block diagram with external circuit

Rev. A1, 28-May-96 3 (12) Pin Description C /C0246 Control 95 11406 Comp. ILoad C soft V Ref Isense Isense V R /C0246 Overload High load V S GND Mode Output V Sync. Pin Symbol Function

1 Isense Load current sensing

2 Isense Load current sensing

3 C /C0246Ramp voltage

4 Control Control input

5 Comp. Compensation output

6 ILoad Load current limitation

7 C soft Soft start

8 V Ref Reference voltage

9 Mode Mode selection

10 GND Ground

11 V S Supply voltage

12 High load High load indication

13 Overload Overload indication

14 V R /C0246Ramp current adjust

15 V Sync. V oltage synchronization

16 Output Trigger output

Series resistance R1 can be calculated as follows: R 1max /C0043V mains –V Smax 2 /C0032Itot whereas V mains /C0043Mains supply voltage V Smax /C0043Maximum supply voltage Itot /C0043Total current consumption = ISmax /C0041Ix ISmax /C0043Maximum current consumption of the IC Ix /C0043Current consumption of the external components Voltage Monitoring As the voltage is built up, uncontrolled output pulses are avoided by internal voltage monitoring. Apart from that all the latches in the circuit (phase control, load limit regulation) are reset and the soft-start capacitor is short circuited. This guarantees a specified start-up behavior each time the supply voltage is switched on or after short interruptions of the mains supply. Soft-start is initiated after the supply voltage has been built up. This behavior guarantees a gentle start-up for the motor and auto- matically ensures the optimum run-up time. Phase Control The function of the phase control is largely identical to the well known IC family U211B. The phase angle of the trigger pulse is derived by comparing the ramp voltage V which is mains synchronized by the voltage detector with the set value on the control input, Pin 4. The slope of the ramp is determined by C /C0246 and its charging current I/C0246. The charging current can be varied using R/C0246 at Pin 14. The maximum phase angle, α max, can also be adjusted by using R/C0246 (minimum current flow angle /C0246min) see figure 4. When the potential on Pin 3 reaches the set point level of Pin 4, a trigger pulse width, tp, is determined from the value of C/C0246 (tp = 9 /C0109s/nF). At the same time, a latch is set with the output pulse, as long as the automatic retriggering has not been activated, then no more pulses can be generated in that half cycle. Control input at Pin 4 (with respect to Pin 10) has an active range from V 8 to –1 V . When V4 = V8, then the phase angle is at its maximum, α max, i.e., the current flow angle is minimum. The minimum phase angle, α min, is set with V4 /C0119 –1 V . Automatic Retriggering The current-detector circuit monitors the state of the triac after triggering by measuring the voltage drop at the triac gate. A current flow through the triac is recognized, when the voltage drop exceeds a thres hold level of typ. 40 mV . If the triac is quenched within the relevant half-wave after triggering; for example owing to low load currents before or after the zero crossing of current wave or; for commu- tator motors, owing to brush lifters. Then the automatic retriggering circuit ensures immediate retriggering, if necessary with a high repetition rate, t pp/tp, until the triac remains reliably triggered.

Rev. A1, 28-May-96 4 (12) Current Synchronization Current synchronization fulfils two functions: /C0042Monitoring the current flow after triggering. In case the triac extinguishes again or it does not switch on, automatic triggering is activated until the triggering is successful. /C0042Avoiding a triggering due to inductive load. In the case of inductive load operation the current synchronization ensures that in the new half wave no pulse is enabled as long as there is a current available which from the previous half-wave, which flows from the opposite polarity to the actual supply voltage. A special feature of the integrated circuit is the realization of this current synchronization. The device evaluates the voltage at the pulse output between gate and reference electrode of the triac. This results in saving separate current synchronization input with specified series resistance. Voltage Synchronization with Mains Voltage Compensation The voltage detector synchronizes the reference ramp with the mains-supply voltage. At the same time, the mains dependent input current at Pin 15 is shaped and rectified internally. This current activates the automatic retriggering and at the same time is available at Pin 5. By suitable dimensioning, it is possible to attain the specified compensation effect. Automatic retriggering and mains voltage compensation are not activated until |V 15 – 10| increases to 8 V . Resistance, Rsync. defines the width of the zero voltage cross over pulse, synchronization current, and hence the mains supply voltage compensation current. R 2 BZX55 C6V2 U2010B 96 11648 Mains Figure 3. If the mains voltage compensation and the automatic retriggering are not required, both functions can be suppressed by limiting |V 15 – 10| /C0118 7 V (figure 3). Load Current Compensation The circuit continuously measures the load current as a voltage drop at resistance R6. The evaluation and use of both half waves results in a quick reaction to load current change. Due to voltage at resistance R 6, there is a difference between both input currents at Pins 1 and 2. This difference controls the internal current source, whose positive current values are available at Pins 5 and 6. The output current generated at Pin 5 contains the difference from the load-current detection and from the mains-voltage compensation (see figure 1). The effective control voltage at Pin 4 is the final current at Pin 5 together with the desired value network. An increase of mains voltage causes the increase of control angle α , an increase of load current results in a decrease in the control angle. This avoiding a decrease in revolution by increasing the load as well as the increase of revolution by the increment of mains supply voltage. Load Current Limitation The total output load current is available at Pin 6. It results in a voltage drop across R 11. When the potential of the load current reaches about 70% of the threshold value (V T70) i.e., ca. 4.35 V at Pin 6, it switches the high load comparator and opens the switch between Pins 11 and 12. By using an LED between these pins, (11 and 12) a high load indication can be realized. If the potential at Pin 6 increases to ca. 6.2 V (= V T100), it switches the overload comparator. The result is programmable at Pin 9 (operation mode). Mode selection: a) α max (V9 = 0) In this mode of operation, after V6 has reached the threshold VT100, Pin 13 switches to –VS (Pin 11) and Pin 6 to GND (Pin 10). A soft-start capacitor is then shorted and the control angle is switched to α max . This position is maintained until the supply voltage is switched off. The motor can be started again with soft-start function when the power is switched on again. As the overload condition switches Pin 13 to Pin 11, it is possible to set in a smaller control angle, α max , by connecting a further resistance between Pins 13 and 14.

Rev. A1, 28-May-96 5 (12) b) Auto start (Pin 9 /C0042 open) The circuit behaves as written under α max (V9 = 0), with the exception that Pin 6 is not connected to GND. If the value of V 6 decreases to 25% of the threshold value (VT25), the circuit becomes active again with soft-start. c) Imax (V9 = V8) When V 6 has attained the overload threshold maximum value i.e. V6 = VT100; Pin 13 is switched to Pin 8 (VRef) through the resistance R (= 2 k/C0087) without soft-start capacitor discharging at Pin 7. With this mode of operation, direct load current control (I max ) is possible. A recommended circuit is shown in figure 18. Absolute Maximum Ratings Reference point Pin 10, unless otherwise specified Parameters Symbol Value Unit Sink current Pin 11 –IS 30 mA t /C0118 /C0049/C0048/C0032/C0109s –is 100 Sync. currents Pin 15 t /C0118 /C0049/C0048/C0032/C0109s /C0034IsyncV /C0034isyncV mA Phase control Control voltage Pins 4 and 8 –V I 0 – V8 V Input current Pin 4 /C0034 II 500 /C0109A Charging current Pin 14 – Iϕ max 0.5 mA Soft-start Input voltage Pins 7 and 8 –V I 0 – V8 V Pulse output Input voltage Pin 16 +V I –V I V 11 V Reference voltage source Output current Pin 8 I0 10 mA t /C0118 /C0049/C0048/C0032/C0109s 30 Load current sensing Input currents Pins 1 and 2 /C0034 Ii 1 mA Input voltages Pins 5 and 6 – V i 0 – V8 V Overload output Pin 13 IL 1 mA High-load output Pin 12 t /C0118 /C0049/C0048/C0032/C0109s IL 30 100 mA Storage temperature range Tstg /C004240 to /C0041125 /C0005C Junction temperature range Tj 125 /C0005C Ambient temperature range Tamb /C004210 to /C0041100 /C0005C Thermal Resistance Parameters Symbol Value Unit Junction ambient DIP16 SO16 on p.c. SO16 on ceramic R thJA 120 180 100 K/W

Rev. A1, 28-May-96 6 (12)

Electrical Characteristics

V S /C0043 –13 V , Tamb = 25°C, reference point Pin 10, unless otherwise specified Parameters Test Conditions / Pins Symbol Min. Typ. Max. Unit Supply Pin 11 Supply voltage limitation–IS = 3.5 mA –IS = 30 mA –V S 14.5 14.6 16.5 16.8 V Current requirement –V S = 13.0 V (Pins 1, 2, 8 and 15 open) –IS 3.2 mA Reference voltage source Pin 8 Reference voltage IL = 10 /C0109A IL = 2.5 mA –V Ref 8.6 8.4 8.9 8.8 9.2 9.1 V Temperature coefficient IS = 2.5 mA IS = 10 /C0109A TC VRef –0.004 +0.006 %/K Voltage monitoring Pin 11 Turn-on threshold –V Son 11.3 12.3 V Phase control – synchronization Pin 15 Input current V oltage sync. /C0034IsyncV 0.15 2 mA V oltage limitation /C0034 IL = 2 mA /C0034V syncV 8.0 8.5 9.0 V Input current Current sync. Pin 16 /C0034IsyncI 3 30 /C0109A Reference ramp, figure 4 Charging current Pin 14 –Iϕ 1 100 /C0109A Start voltage Pin 3 –V max 1.85 1.95 2.05 V Temperature coefficient of start voltage Pin 3 TC R –0.003 %/K Final voltage Pin 3 –V min (V8/C0034200 mV) R ϕ − reference voltage Iϕ = /C0049/C0048 /C0109Α Pins 14 and 11 V R ϕ 0.96 1.02 1.10 V Temperature coefficient Iϕ = /C0049/C0048 /C0109Α Pin 14 Iϕ = /C0049 /C0109Α TC VR ϕ 0.03 0.06 %/K Pulse output current V 16 = – 1.2 V , figure 5, Pin 16I0 100 125 150 mA Output pulse width V S = Vlimit, C 3 = 3.3 nF, figure 6, Pin 16 tp 30 /C0109s Automatic retriggering Repetition rate I15 /C0119 150 /C0109A tpp 3 5 7.5 tp Threshold voltage Pin 16 /C0034V I 20 60 mV Soft start, figure 7 and 8 Pin 7 Starting current V 7 = V8 –I0 5 10 15 /C0109A Final current V 7–10 = –1V –I0 15 25 40 /C0109A Discharge current +I0 0.5 mA Output current Pin 4 +I0 0.2 2 mA Supply voltage compensation, figure 9 Pin 15 Transfer gain I15/ I5 Pin 15/5 (Pins 1 and 2 open) G i 14 17 20 Output offset current V (R6) = V15 = V5 = 0 /C0034I0 2 /C0109A Load current detection, R1 = R 2 = 3 k/C0087, V15 = 0, V5 = V6 = V8, figure 10 Transfer gain I5/150 mV , I6/150 mV G I 0.28 0.32 0.37 /C0109A/mV Output offset currents Pin 5, Pin 6 - 8–I0 0 3 6 /C0109A Reference voltage I1, I2 = 100 /C0109A Pins 1 and 2 –V Ref 300 400 mV Shunt voltage amplitude see figure 2 /C0034V (R6) 250 mV

Rev. A1, 28-May-96 7 (12) UnitMax.Typ.Min.SymbolTest Conditions / PinsParameters Load current limitation, Pin 6-8, figs. 11 to 14 High load switching Threshold VT70 V T70 4 4.35 4.7 V Overload switching Threshold VT100 V T100 5.8 6.2 6.6 V Restart switching Threshold VT25 V T25 1.25 1.55 1.85 V Input current Enquiry mode Ii 1 /C0109/C0065 Output impedance Switching mode R 0 2 4 8 k/C0087 Programming input, figure 2, Pin 9 Input voltage - auto-startPin 9 open –V 9 3.8 4.3 4.7 V Input current V 9 = 0 (/C0097max ) V 9 = V8 (Imax ) –I9 /C0109/C0065 High load output, VT70, figure 12, I12 = –3 mA, Pin 11-12 Saturation voltages V 6-8 /C0118 VT70 V 6-8 /C0119 VT70 V sat V lim 0.5 7.0 0.75 7.4 1.0 7.8 V Overload output, VT100, V9 = open or V9 = V10, fig. 13 Leakage current V 6-8 /C0118 VT25 V 13 = (V11+1)V Pin 13 Ilkg 0.5 /C0109/C0065 Saturation voltages V 6-8 /C0119 VT100, I13 = 10 /C0109A Pins 11-13 V sat 0.1 V Output current, max. loadV 9 = V8, fig. 13 Pin 13 I13 1 mA Leakage current V 6 /C0118 VT100 Pin 13 Ilkg 4 /C0109/C0065 Output impedance Open collector V 6 /C0119 VT100 Pin 13 R 0 2 4 8 k/C0087 Saturation voltage V 6-8 /C0119 VT100, I13 = 10 /C0109A Pin 13 V 13–8 100 mV 6.8 nF33 nF 100 150 200 250 0 200 400 600 800 1000 Phase angle ( ) R /C0246 ( k/C0087 )96 11797 /C0097° 10 nF 4.7 nF 3.3 nF 2.2 nF C /C0246/ t = 1.5 nF Figure 4. 0 200 400 600 800 120 I ( mA )GT R GT ( /C0087 ) 1000 95 10338

100 Pulse Output

V GT =–1.2V Figure 5.

Rev. A1, 28-May-96 10 (12) Application Circuit 96 11649 Automatic retriggering Limiting detector Current detector V oltage detector Phase control unit Mains voltage compensation Reference voltage V oltage monitoring Load current detector Full wave rectifier 1 2 Output Programmable overload protection max Auto– start B A Imax C 100% 70% Level shift Supply voltageHigh load Soft start 14 13 12 11 3 5 67 8 180 /C0087 R 3 226 Load R 6 3.3 k/C0087 R 4 ^V (R6)= 250 mV 3.3 k/C0087 R 5 Set point C 3 10 nF 50 k/C0087 R 7 8.2 k/C0087 R 11 0.1 F R 10 100 k/C0087 Load current compensation 0.15 F C 4 C 2 4.7 F C 7 1 F R 8470 k/C0087 max R 2 330 k/C0087 18 k/C0087/2 W R 1 D 1 BYT51K D 3 LED V S C 1 22 F A B CS1 R 9

1 M /C0087 max

N D 2 1N4148 BC308 R 13 100 k/C0087 C 6 1 F R 12 220 k/C0087 L = f(V ) /C0109 /C0109 /C0109 /C0109 GND Overload /C0034 /C0097 /C0097 /C0097 /C0246 /C0109 /C0109 TIC Figure 18.

Rev. A1, 28-May-96 11 (12) Dimensions in mm 94 9128 94 8875

Rev. A1, 28-May-96 12 (12) 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