SAB0529 SIEMENS | Alldatasheet
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Programmable Digital Timer SAB 0529 Features Bipolar IC @ Direct operation from AC line or DC supply possible @ Time base is 50 Hz line frequency 3 @ Triac triggering with voltage synchronization for ey resistive loads, or with current synchronization on :s for resistive, inductive and capacitive loads SS eens © Triac gate trigger current up to 100 mA apes © Continuous output current to relay actuation i M max. 100 mA Ss @ 8 overlapping timing periods between 1 second p-ow-18 3 and 31 1/2 hours (at 50 Hz) © 2 operating modes: momentary switching or switch off delay, both are retriggerable @ Upon request, delay times can be adjusted to customer's specification, requiring only minimum external components. This is possible @ 7 through mask programming, but is based on ws minimum order quantities. [p 030-20 Type Ordering Code Package Sm SAB 0529 Q67000-H2176 | P-DIP-18 Em SAB 0529G Q67000-H2952 | P-DSO-20 (SMD) ® Not for new design. With the digital timer SAB 0529, delay times between 1 second and 31 1/2 hours can be set. Time base is the 50 Hz line frequency. A triac may be triggered by the SAB 0529 IC. The SAB 0529 can be programmed to two operating modes: “momentary switching” and “switch-off delay” (according to DIN 46120). In the first mode, a rising edge at the start input activates the triac and starts the timing period. In the switch-off delay mode, the rising edge at the start input activates the triac; but the falling edge starts the timing period. The versatile IC SAB 0529 covers a great variety of applications, e.g. electronic timers, cooking equipment control, espresso machines, hand-driers, coin changing machines and ‘slot machines, stairwell-light time switches, industrial controls, developing systems for photo- graphic labs, automatic starters (to preheat car engines), and operating-hours counters. 485 8.90
(top view) ‘SAB 0529 ‘SAB 0529 G CI o cno[]1 wet GNO Ct 20FOK, ned 19ho Ts nQ2 nits so3 tehor Fos who tc sp wt acs w6EBI re[]s as{]tc Bm6 1spoH coq? 14006 a{]s wit RESET OO 8 13pOF om poe BJs sila nc. pone cf? xfs TPIS. reset [|8 nije offs wpe ToT Pin Definitions and Functions SAB 0529 | SAB 0529G Pin Pin Symbol Function 4 1 GND | Circuit ground - 2 2 N Line voltage via series resistor 3 [3 [s | start 4 [4 [FC _| Function changeover 5 5 A Programming of basic timing unit 6 6 B Programming of basic timing unit 7 7 c Programming of basic timing unit 8 8 R Reset 9 9 D Basic timing unit x 1 10 12 is Basic timing unit x2 | These values apply to the 1" 13 F Basic timing unit x 4 | eee ne ovine each 12 14 G Basic timing unit x8 | of those pins may be assigned 13 15 H Basic timing unit x 16 | @ value between 1 and 63, 14 16 1 Basic timing unit x 32 15 {17 Te Triac operation mode setting 16 | 18 T Triac triggering 7 19 TS____| Triac synchronization a 18 20 Vs Positive supply voltage _ With the P-DSO-20-package (SAB 05296), pins 10 and 11 are not connected. Siemens Aktiengesellschaft 486
I | ° . cr Hl | Fd * “ @ g cl || | rr | | |. [re Hel i 5 55 2 [ 1, « 7 tH t Siemens Aktiengeselischaft 487
Parameter Lemnct [rae [mae] oe _| Notes ‘Supply voltage at impressed dc voltage iA v Peak current at N In 35 50 Hz operation DC from N (rms) —Boama 12.5 with Vs 7.5 V AC at N with 50 Hz operation impressed current Isms 25 with Vs $7.5 V Voltage at S, FC, A, B,C, R v 75 v Voltage at N, with N utilized as clock input Vor Vs, v Voltage at TC Vac Veg v Voltage at T [vy {-03 [7s [v_| Peak current in T Tip 150 | mA | 1 ms (10 ms interval) Continuous current in T id 100 | mA Current in D, E, F, G,H, | I 05 mA D,E, F, G, H, | on-state Voltage at D, E, F, G, H, | v 75 |v 0,E, F,G, H, | off-state Short-term peak current at N Inp 350 | mA | 0.3 ms (100 ms interval) with Con> 40 pF Junction temperature 7; 150 | °C Storage temperature Tag 125 | °C Thermal resistance system - air SAB 0529 Run sa 70 kv SAB 0529G_ | Ringa 105 | KW All voltages are referred to pin 0, unless otherwise specified. Operating Range Supply voltage at Voltage between impressed DC voltage Vg 55 |v pin 0 and Vs Impressed DC or impressed AC at N2) DC supply from N (rms) =I 25) [125 | mA | see application circuit AC supply at N (rms) Tnims__| 51) 25 mA__| see application circuit 4) Only the supply current for the IC, ie. without triac gate current. The rms gate current additionally flows through N. (The IC may be operated with DC or AC; see also application circuits). 2) The voltage between 0 and Ve is between 5.5 V and 7.0 V for impressed AC and between 6.0 V Fipple at Vs with DC supply). Siemens Aktiengeselischaft 488
Vs = 4.5 V to $5.5 V (7.5 V)"), Ty = 0°C to 70°C Parameter Symbol Lae pe mae | oe Test Conditions Supply curentat eandiorN [fy | [14 [28 | ma _| n= Vg with impressed current at N: Impressed ac Vs 62 |70 |v Tres = 5 MA Impressed de Vs 6s |75 |v =Iy= 2.5 mA ‘Switching threshold at: A,B,C, S, FC, R Vs {os | 06 7 N (if N is clock input) | Mw 06 =| 12 v Tc Vic 35 v TS (for voltages > Vs) Vast Vg#1.3 v TS (for voltages < Vs) Vis— Vg—1.3 v L-input current at: | A,B,C, 8, FC,R Ie 20 HA | Y.=0V N (iN is clock input) Ti 40 pA Ww=0V H-input current at: A,B,C, &, FC, R In 20 pA | y= VeS5.5V N {if N is clock input) Tins 10 HA Ww = Vs. Te Titcw 50 A 45 VS VicSVg Pos. switching current at TS Trgt | 27 45 81 HA | Vyg=Vist 7 Neg. switching current atTS | Iis—_| 18 30 54 pA | Yis=Vis~ LvotageatEFGHI —[% | | [oa _|V | h=08ma Reverse current at D,E.F,G,H,1 | In ee ee ee | L-output voltage at T Vom 1.8 Vv T= 1mA 2 v p= 10mA 23 v J,= 100 mA +) with impressed current at N. Siemens Aktiengesellschaft 489
Through division of the line frequency into the portions 1:50, 1:60, 1:10, and 1:3, the basis for 8 timing periods is created. The timing period is selected via inputs A, B, and C, according to the following truth table. Basic 7 Timing range A B Cc - timing unit Max. time at 50 Hz line 1 L L L 1s 63s (approx. 1 min) 2 L L H 3s 189s (approx. 3 min) 3 L H L 10s 630s (10.5 min) 4 L H H 30s 1890s (31.5 min) 5 H L L 1 min 63 min (approx. 1 hr) 6 H L H 3 min 189 min (approx. 3 hrs) 7 ;H H L | 10 min 630 min (10.5 hrs) 8 us H H 30min —_| 1890 min (31.5 hrs) L and H potentials are referred to terminal 0, e.g. L = 0, H = Vs The time basis of the set period is multiplied by the corresponding value in the flipflops 1, 2, 4, 8, 16, 32. The delay time at output T results from connecting a terminal between D and | with terminal R. Should several of the pins D to | be connected to R, the corresponding delay times are added. Siemens Aktiengesellschaft 490
Reset during a timing period is accomplished by interrupting the connection to R, or by applying an H potential to R (in the latter case a protective resistor between R and D through | is necessary as those pins are not protected against short circuit to Vs), or by turning on and off Vs. Application Hint If R is connected to one of the pins D through | via a multiposition switch, and if during the changeover a reset of the timing period is to be avoided, a suitable capacitor is required between R and 0. With the connection of the supply voltage, the circuit is automatically reset. A timing period does not commence if 0 potential is applied to S. The SAB 0529 allows two operating modes to be set via pin FC (function changeover): 1. “Momentary Switching Function” in accordance with DIN 46120 The triac at pin T turns on with the rising edge at the start input S and turns off when the set time has passed, independent of the start pulse length. Start Pulse >hOms L--__— at S at the Load = se——— Set Time - Dead Time max. 31.5 hrs eos 20 to 4Oms 2. “Switch-Off Delay” in accordance with DIN 46120 The triac turns on with the rising edge at S. The falling edge at S starts the timing period. The triac remains in on-state until the set period has passed. Start Pulse = __[>40ms— LL ats i Voltage at the Loa \\ ho be — Set Time ——e Dead Time max. 31.5hrs —reto2ess 20 to 4Oms To protect the start input S against external interference and contact bounce, it has a dead time of between 20 and 40 ms for its positive switching edge, depending on the phase of the 50-Hz line. Both operating modes are retriggerable during the timing period. Function Changeover FC Function L momentary switching H switch-off delay Siemens Aktiengesellschaft 491
Pin TS (triac synchronization) is the input of a zero voltage switch and serves to synchronize the output T (open collector) with the load voltage or the load current. With Vs < 3 V, the output current is disconnected. The input TC has a double function: @ to change TS over to voltage synchronization @ to adjust the triac trigger pulse width (by connecting a capacitor C, to TC) in case of current synchronization. Three operation modes are possible by varying the connection of the pins TC and/or TS: Operating Mode 1 TC to Vg: Output T is connected to the zero voltage switch. T operates when Vs -1.3 V < Vig S$ Vg $1.3 V. Is utilized in case of voltage synchronization; see application circuit 1 (operation with resistive load) and pulse diagram. Operating Mode 2 TC via C, to Q: Output T is connected to the zero voltage switch via a monoflop. If V; —1.3 V has fallen below or V, +1.3 V exceeded at TS, the output T releases a triac gate trigger pulse determined by Ce. Is utilized in case of current synchronization; see application circuit 2 and pulse diagram. Operating Mode 3 TC and TS to Vs: Output T conducts after release of start pulse. Is utilized for any load in case of continuous triac triggering (e.g. low performance), or if any other load is to be operated instead of the triac (see application circuits 3, 4, 5). Operation with Line Voltage A series resistor R, and a charging capacitor Ce, serve for line voltage supply. If a diode is connected in series with R, (anode to N), the rms current consumption is halved. The series resistor may also be an RC network (see application circuit 6). Operation with DC Voltage This IC can also be operated with dc voltage or current (see application circuits 4 and 5). Siemens Aktiengesellschaft 492
Pulse Diagrams for Triac Operation Modes 1 and 2 Operating Mode 1 Voltage synchronization with resistive loads (TC to Vz) V at theLoad - = ‘ - hs ia —% iG I ° UL, Operating Mode 2 Current synchronization with nonresistive loads (capacitance C, to TC) Vet theLocs Tat the Load Wk - —_% ie Ssline teflC,) yy a ee | Siemens Aktiengeselischaft 493
- Operation with Resistive Loads - © Start ag GND or Ye i FO A BC | IS Vs, SAB 0529 Coe as Line Ts WA | Rr N i \\OEF GNI, [Jes [sme [ ]toae os I ~esins (RESET) 2. Operation with Resistive, Capacitive, or Inductive Loads Start coc GND of Ve _ rs . . ‘CA BC | akc | s v5 ___|GNO . i rc i Re i T = Line SAB 0529 Ct > Sy | 1s Pane x R iN | | | os (RESET) Siemens Aktiengesellschaft 494
- Operation with any Load and Continuous Triac Triggering Start Cn GND or Vs - Fc wn 8B CN | is v0 1c | | SAB 0529 Te Jan | 1S WA | RQ Rr N | | | | DEFGHI, | [Jes CO )iowe os 1 E + resonuse (RESET) 4. Operation with 5 V DC Voltage sv Start | GND or Ye ce ken | CoA B CS | | Load \\ ols q, NO } (up to 100mA) Tc | ri SAB 0529 Ts RN | | i \\OERGHI, | Ry, (RESET) SOH2/>2V. 1eso04s9 Note: The diode D in application circuits 1 to 3 must not necessarily be used. This diode, however, may halve the power dissipation at Rs. Siemens Aktiengesellschaft 495
- Operation with DC Voltage > 10 V (limited only by transistor TA) o+(>10V) Start Supply GND or Ve j 7% Voltage fe R BON C f | s A fi SAB 0529 | crt fia RIN [ieee \\DEFGHT [> (up to Approx OSA) I b resooes0 (RESET) SOHz/>Vs 6. Operation with Capacitive Series Resistor In the application circuits 1 to 3, a series connection of R and C may be utilized instead of R, or Rs and D. N Rss 220V/S0Hz reso0ust Note: If not required, the reset key may be omitted in application circuits 1 to 5. Siemens Aktiengesellschaft 496
Dimensioning the Application Circuits The following formulae give reference values for operation with sine-shaped ac voltages of 50 Hz. The triac is always triggered in the 2nd and 4th quadrant (negative gate trigger current). Trigger pulse length Z;Z = holding currents); applies to Z<1 ms mms load current Re= Vs — Vat. — gate trigger voltage S gate trigger current R, = 0.5 xrms line voltage —Vs_ (with or without diode D) Tg + average gate trigger current average gate trigger current = gate trigger current x-2- (Z in ms) Power dissipation at Ry: (without diode D) — {ms tne votagey” seen i 2 (with diode D) = 0.5 x {ms tne voltage)? _ Con = 20 x 8 tine voltage ue y, KQ) (residual ac voltage at Vspp $0.5 V) Note for Con If short-term line failures are to be compensated, C,, has to be accordingly larger (approx. 1000 uF for < 5's line failure). Application Circuit 1 (voltage synchronization for resistive load) .22 line voltage — 1. i Revue = O22 ZX Ms line voltage —13 , peak line voltage Ke y, ma, ms) 0.04 4 Notes for Application Circuit 1 An average Irs of 0.04 mA was inserted into the formula approximating Rsync- As Irs+ and Irs— contain production deviations, utilizing the determined Rsync requires certain tolerances to be taken into account for pulse length Z. To minimize the effect of these tolerances, a resistor may be connected between Vs and TS, which generates a constant current of Hi. to be added to Irs. However, a TC of —4 mV/K should be noted for Vrs. Siemens Aktiengesellschaft 497
Application Circuit 2 (current synchronization) Cy. = 22 x Z (nF, ms) Revo 2 M% snstate voltage — 1.3 TSmin The largest value applies (kQ, V, mA) peak line voltage Rsyne = —— Reyne < 922 tigger voltage — 1.3 (kQ, V, mA) Tismax Notes for Application Circuit 2 In this circuit, an even shorter pulse length than determined for Zis sutficient to trigger the triac. This is possible by the trigger pulse being automatically repeated until the holding current is reached. Overdimensioning of Z for safety reasons is, therefore, not necessary. The disadvantage of multiple trigger pulses, however, is a somewhat larger interference band during the triggering. The interference band and/or the interference amplitude generated also depend on the amount of the gate trigger voltage necessary to trigger the triac after each current zero passage. That voltage is determined by the size of Rgync and should not exceed 20 V. Application Circuit 3 Dimensioning of R,, Rg, and C., as described at the beginning of this section. Application Circuit 4 Ry = 15 xac voltage (50 Hz) (kQ, Vrms) Application Circuit 5 Ry see above. The AC voltage for the timing base must be greater than (supply voltage —4.8V). supply voltage ~ 6.8 V Rom SBR Nomege BN Tay = lara + Tae Ts + Ins 68V—Von—Vi R= Yon eI, = 0.05 lara ay Veyray Ry = 304
2 Tre
Cy = 35 uF, KO) s applies to 50 Hz R, =0.2 Rs To limit the inrush current, R,, has to be >0.2 R,. Otherwise, the circuit may be damaged. Siemens Aktiengesellschaft 498
Internal Connection of Inputs, Outputs, and Supply Pins porenece O,E,F,G,H51 en i ° val | a oe TT GND | ¢ | ¥ - be N | ae 15 tesonsez aa Siemens Aktiengesellschaft 499
Time control for ventilator motor, adjustable to 3, 6, or 12 minutes’ ventilation nn | to 1 e2e{]| aa 220uFI10V I 1 i i | Light 1 | Iv | a ! 1 t ! (> t \\ d SAB 0529 Tap XC TBEGO 1 frets — Line 1 1S 7) 1 | A s80KQ8*) OJelF[cwy (RIN 150K8 i { i I 6 +) — 36° /12min. 22kQU1.S W 1 - 4 ae] [ ! i H ; p20K8 N a Y1N6007 if | 1 t in ' tighting | ' | Ventilator | i motor a 1 *) for 220 Vac, 10 kQ for 110 Vac; **) for 220 Vac, 330 kQ for 110 Vac; (high-voltage proof) “*) for 220 Vac, 82 kQ for 110 Vac; Siemens Aktiengesellschaft 500