U217B TEMIC | Alldatasheet
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Technical content
Zero-Voltage Switch with Adjustable Ramp
Description
The integrated circuit, U217B, is designed as a zero- A ramp generator allows power control function by pe- voltage switch in bipolar technology. It is used to control riod group control, whereas full-wave logic guarantees resistive loads at mains by a triac in zero-crossing mode. _ that full mains cycles are used for load switching. Features @ Simple power control © Direct supply from the mains © Ramp generator © Ref Ita © Current consumption < 0.5 mA eference voltage © Very f a ts, . . ery few external components Applications @ Full-wave drive — no DC current component in the e . load circuit Full-wave power control @ Negative output current pulse typ. 100 mA — © Temperature regulation short-circuit protected @ Power blinking switch Block Diagram 95 10872 Diz BYTS6/800 4 220kQT] Re RI] 8 ke/ Load (250 vo. | (Reyne) 1] 2W 1000 W | a ’ © Ry O O ra O ron = 100 kQ | = 100 wry Vu =
2.2 Why Ram lov 230 V~
ey Y X me . Rs 236N | MT2 l 15 kQ 3 VA eo) 6 100Q MT e) . Pulse H 100 kQ Comparator amplifier min Reference voltage Re 1.25V l 58kQ N O Figure 1. Block diagram with typical circuit, period group control 0 to 100%
4 OP- __| OP inverting input
Figure 2. Pinning switching resistive loads of mains supply. figure 9. Figure 4.
2 Tot 2R1
40 T \\A
20 XN >
10 P 1
Figure 7. Figure 8.
[Supplycurrent Pin | ts | Tm [Output current ramp generator Pint | Tg Tm Pin 2 Vi 20 Vs Pin 8 Vi $73 Tamb = 45°C Prot 400 mW Tamb = 100°C 125 Junction temperature T; 125 °c Thermal Resistance
Electrical Characteristics
—-Vs = 8.5 V, Tamb = 25°C, reference point Pin 7, unless otherwise specified [Parameters | _TestConditions/Pin__| Symbol | Min. | Typ. | Max. | Unit _| |Supply-voltage limitation |-Is=SmA Pins | -vs_ | 86 | 9.25 | 99 | Vv | [Supply current | Pin | ts PT 50 [Voltage limitation |Is=t1mA Ping | tv | 75 | | 87 |v a ee re Zero detector Alyn 35 pA pe eta | |g | | Reyne = 220 kQ 260 bs Rgync = 470 kQ 460 [Output pulsecurren __—[Vs=OV_ Pino | to | too | Tm [Input offset voltage | Pin 3,4 | Vo | STS Tm [Input biascurrent | Pind | te sme een voltage Been fee mew es Pe | reference a ce Cy = 100 uF, Cp = 1 pF, Rg= 100 kQ T LS s en le eT Initial voltage 6.8 73 78 5 (12) Rev. A2, 14-Apr-98
Applications
O L e) Ru 270 k Toad I i BYT86/800 Vu = 230 V ~ OQ 18kQ ly @N 56Q 4 15W N — O fe) mL 6 | i U217B ? ? LJ O O ee T>1.5mA = I 39kQ 2 Vi O 95 11308 Figure 9. Power switch
1 Ro Comparator Pulse
Figure 10. Temperature control 15 to 35°C with sensor monitoring
250 V ~ 18 kQ/
Figure 11. Power blinking switch with f © 2.7 Hz, duty cycle 1:1, power range 0.5 to 2.2 kW
Figure 12. Room temperature control with definite reduction (remote control) for a temperature range of 5 to 30°C
68 Wy ae (200 kQ) HY NTC
Figure 13. Two-point temperature control for a temperature range of 15 to 30°C
Figure 14. Two-point temperature control for a temperature range of 18 to 32°C and a hysteresis of + 0.5°C at 25°C
Package Information
95 TAT
1.64 1.44 re max WHIT 6.4 max OSmin 3:3 1 0.36 max rel 98 0.48} 8.2 7.62 8 5 b | ae technical deawings Secording to DIN" 13021 I 4 Dimensions in mm 5.2 5,00 48 4.85, 37 Wo A\\— 1] NGafo2 1.27 6.15 5.85 8 5 it itd th i chia eawings ow vane 1 4 11. (12) Rev. A2, 14-Apr-98
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 12 (12) Rev. A2, 14-Apr-98