T2117 ATMEL | Alldatasheet
Document overview
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Technical content
Features
- Direct Supply from the Mains Current Consumption ≤ 0.5 mA Very Few External Components Full-wave Drive – No DC Current Component in the Load Circuit Negative Output Current Pulse Typically 100 mA – Short-circuit Protected Simple Power Control Ramp Generator Reference Voltage
Applications
Full-wave Power Control Temperature Regulation Power Blinking Switch 1. Description The integrated circuit, T2117, is designed as a zero-voltage switch in bipolar technol- ogy. It is used to control resistive loads at mains by a triac in zero-crossing mode. A ramp generator allows power control func tion by period group control, whereas full-wave logic guarantees that full mains cycles are used for load switching. Zero-voltage Switch with Adjustable Ramp T2117 Rev. 4768B–INDCO–10/05
4768B–INDCO–10/05 T2117 Figure 1-1. Block Diagram with Typical Circuit, Period Group Control 0 to 100% 2. Pin Configuration Figure 2-1. Pinning DIP8/SO8 Ramp generator Pulse amplifierComparator 18 kΩ/ 2 W L Synchronization Supply Full-wave logic Reference voltage 1.4 V 100 kΩ 2 8 5 2.2 µF/ 10 V 12 kΩ min max 100 kΩ 18 kΩ 220 kΩ 100 Ω Load 1000 W VM = 230 V~ N (250 V~) MT2 MT1 GND 100 µF/ 16 V T2117 -VS (Rsync) RAMP CRAMP POSIN NEGIN VSYNC GND OUTPUT VS T2117 Table 2-1. Pin Description Pin Symbol Function
1 RAMP Ramp output
2 CRAMP Ramp capacitor
3 POSIN Non-inverting comparator input
4 NEGIN Inverting comparator input
5 VS Supply voltage
6 OUTPUT Trigger pulse output
7 GND Ground
8 VSYNC Voltage synchronization
4768B–INDCO–10/05 T2117 4. Triac Firing Current (Pulse) This depends on the triac requirement. It can be li mited by the gate series resistance which is calculated as follows: where: VG = Gate voltage IGmax = Maximum gate current Ip = Average gate current tp = Firing pulse width T = Mains period duration 5. Firing Pulse Width t p This depends on the latching current of the triac and its load current. The firing pulse width is determined by the zero-crossing detection whic h can be influenced by the synchronous resis- tance, Rsync, (see Figure 5-2 on page 5). where IL = Latching current of the triac VM = Mains supply, effective P = Load power The total current consumption is influenced by th e firing pulse width which can be calculated as follows: RGmax
7.5 V V Gmax–
ω--- arc. sin IL VM× ⎛⎞= Rsync VM 2 sin ω tp 2----×⎝⎠ ⎛⎞ 0.6 V– 3.5 10 -5A×
4768B–INDCO–10/05 T2117 6. Supply Voltage The T2117 contains a voltage limiting funtion a nd can be connected with the mains supply via the diode D1 and the resistor R 1. The supply voltage between pin 5 and 7 is limited to a typical value of 9.5 V. The series resistance R 1 can be calculated as follows ( Figure 6-1 on page 6 and Figure 6-2 on page 7): Itot = IS + IP + Ix where VM = Mains voltage VS = Limiting voltage of the IC Itot = Total current consumption IS = Current requirement of the IC (without load) Ix = Current requirement of other peripheral components P(R1) = Power dissipation at R1 Figure 6-1. Maximum Resistance of R1 R1max 0.85 VMmin VSmax–
2 Itot
VM VS–() 2 2 R1 03 6 9 1 2 R 1 (kΩ) Itot (mA) VMains = 230 V~
4768B–INDCO–10/05 T2117 Figure 6-2. Power Dissipation of R1 According to Current Consumption 03 6 9 1 2 Itot (mA) P R1 (W VMains = 230 V ~ 7. Absolute Maximum Ratings Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Parameters Pin Symbol Value Unit Supply current 5 -I S 30 mA Synchrounous current 8 I sync 5m A Output current ramp generator 1 I O 3m A Input voltages 1, 3, 4, 6 I -VI ±VI ≤VS 2 to VS ≤7.3 V V V Power dissipation T amb = 45° C Tamb = 100° C Ptot Ptot 400 125 mW mW Junction temperature T j 125 ° C Operating ambient temperature range Tamb 0 to 100 ° C Storage temperature range T stg -40 to +125 ° C 8. Thermal Resistance Parameters Symbol Value Unit Junction ambient SO8 R thJA 200 K/W Junction ambient DIP8 R thJA 110 K/W
4768B–INDCO–10/05 T2117 9. Electrical Characteristics -VS = 8.8 V, Tamb = 25° C, reference point pin 7, unless otherwise specified Parameters Test Conditions Pin Symbol Min. Typ. Max. Unit Supply-voltage limitation -IS = 1 mA -IS = 10 mA 5 -VS -VS 9.0 9.1 9.5 9.6 10.0 10.1 V V Supply current 5 -I S 500 µA Voltage limitation I 8 = ±1 mA 8 ±V I 7.7 8.2 8.7 V Synchronization current 8± I sync 0.12 mA Zero detector 8 ±I sync 35 µA Output pulse width VM= 230 V ~ Rsync = 220 kΩ Rsync = 470 kΩ tP tP 260 460 µs µs Output pulse current V 6 = 0 V 6 -I O 100 mA Comparator Input offset voltage 3, 4 ±V I0 15 mV Input bias current 4 I IB 1µ A Common-mode input voltage 3, 4 -V IC 1( V S - 1) V Threshold internal reference V3 = 0 V 4 -V Ref 1.4 V Ramp Generator, Figure 1-1 on page 2 Period -IS = 1 mA Isync = 1 mA C1 = 100 µF C2 = 2.2 µF R4 = 100 kΩ 1T 1 . 5 s Final voltage 1 -V 1 1.2 1.6 2.0 V Initial voltage 1 -V 1 7.2 7.6 8.0 V Charge current V 2 = -VS, I8 = -1 mA 2 -I 2 14 20 26 µA
4768B–INDCO–10/05 T2117 10. Applications Figure 10-1. Power Blinking Switch with f ≈ 2.7 Hz, Duty Cycle 1:1, Power Range 0.5 to 2.2 kW 8 7 65 123 4 T2117 270 kΩ VM = 230 V ~ 56 Ω 18 kΩ/ 1.5 W L N 100 nF/
250 V ~
82 Ω 0.5 ... 2.2 kW 110 kΩ150 kΩ 47 µF/ 16V 0.47 µF/ 10 V
4768B–INDCO–10/05 T2117 Figure 10-4. Room Temperature Control with Definite Reduction (Remote Control) for a Temperature Range of 5 to 30°C 8 7 65 123 4 T2117 510 kΩ VM = 230 V ~ 62 Ω L N 0.35 ... 1.5 kW 910 kΩ IH = 50 mA Load 9.1 kΩ 220 kΩ 12 kΩ 10 nF 25 kΩ R15 NTC 33 kΩ12 kΩ 56 kΩ 1 µF47 µF 100 µF/ 12 V 2.2 µF 680 kΩ 680 kΩ 13 kΩ/2 W -∆T R10 R8 C2 R16
4768B–INDCO–10/05 T2117 Figure 10-5. Two-point Temperature Control for a Temperature Range of 15° C to 30° C 8 7 65 123 4 T2117 220 kΩ 56 Ω 18 kΩ/ 1.5 W L N Load/1000 W 68 µF/ 10 V VDR 10 nF 220 kΩ 500 kΩ 50 kΩ NTC VM = 230 V ~ (680 kΩ) (2 MΩ) (200 kΩ)
4768B–INDCO–10/05 T2117 Figure 10-6. Two-point Temperature Control for a Temperature of 18° C to 32° C and a Hysteresis of ±0.5° C at 25° C 8 7 65 12 3 4 T2117 430 kΩ VM = 230 V~ 92 Ω 18 kΩ/ 1.5 W L N ≥ 68 µF/ 10 V Load/400 Ω Rsync 27 kΩ 330 kΩ 8.2 kΩ 150 nF 50 kΩ 39 kΩ 200 kΩ NTC 33 µF/ 10 V R15 11. Ordering Information Extended Type Number Package Remarks T2117-3ASY DIP8 Tube, Pb-free T2117-TASY SO8 Tube, Pb-free T2117-TAQY SO8 Taped and reeled, Pb-free
4768B–INDCO–10/05 T2117 12. Package Information 9.8 9.5 Di mensi ons i n mm 1.64 1.44 4.8 max 0.5 min 3.3 0.58 0.48 7.62 2.54 6.4 max 0.36 max 9.8 8.2 7.77 7.47 technical drawings according to DIN specifications technical drawings according to DIN specifications Dimensions in mm 5.00 4.85 0.4 1.27 3.81 1.4 0.25 0.10 5.2 4.8 3.7 3.8 6.15 5.85 0.2
4768B–INDCO–10/05 T2117 13. Revision History Please note that the following page numbers referred to in this section refer to the specific revision mentioned, not to this document. Revision No. History 4768B-INDCO-08/05
- Put datasheet in a new template
- First page: Pb-free logo added
- Page 13: Ordering Information changed
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