Full-wave Power Control Temperature Regulation Power Blinking Switch
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Full-wave Power Control Temperature Regulation Power Blinking Switch
Zero-voltage Switch with Adjustable Ramp T2117
Description
integrated circuit, T2117, designed zero-voltage switch bipolar technology. used control resistive loads mains triac zero-crossing mode. ramp generator allows power control function period group control, whereas full-wave logic guarantees that full mains cycles used load switching.
Rev. 4768A-INDCO-11/03
Figure Block Diagram with Typical Circuit, Period Group Control 100%
(250 (Rsync) Reference voltage Full-wave logic Comparator Pulse amplifier Ramp generator Synchronization Supply Load 1000
T2117
Configuration
Figure Pinning DIP8/SO8
RAMP CRAMP VSYNC
T2117
OUTPUT
POSIN
NEGIN
Description
Symbol
RAMP CRAMP POSIN NEGIN OUTPUT VSYNC
Function
Ramp output Ramp capacitor Non-inverting comparator input Inverting comparator input Supply voltage Trigger pulse output Ground Voltage synchronization
T2117
4768A-INDCO-11/03
T2117
General Description
integrated circuit T2117 triac controller zero-crossing mode. designed control power switching resistive loads mains supplies. Information regarding synchronous supply provided resistor RSync. avoid load mains, full-wave logic guarantees that complete mains cycles used load switching. fire pulse released when inverting input comparator negative (pin with respect non-inverting input (pin internal reference voltage. ramp generator with freely selectable duration performed capacitor ramp function used open-loop control (Figure also applications with proportional band regulation (Figure page Ramp voltage available capacitor decoupled across emitter follower maintain lamp flicker specification, ramp duration adjusted according controlling load. internal reference voltage simple applications. that case, inactive connected (GND), Figure page Figure Internal Network
T2117
Ramp control
Figure Threshold Voltage Ramp -8.8
-1.6 Final voltage Vmin Initial voltage Vmax
-7.6
4768A-INDCO-11/03
Triac Firing Current (Pulse)
This depends triac requirement. limited gate series resistance which calculated follows:
Gmax RGmax Gmax IGmax
where: IGmax Gate voltage Maximum gate current Average gate current Firing pulse width Mains period duration
Firing Pulse Width
This depends latching current triac load current. firing pulse width determined zero-crossing detection which influenced synchronous resistance, Rsync, (see Figure page
arc.
where Latching current triac Mains supply, effective Load power
total current consumption influenced firing pulse width which calculated follows:
Rsync
T2117
4768A-INDCO-11/03
T2117
Figure Output Pulse Width
10.00 VMains
(ms)
1.00
0.10
(mA)
0.01
1000
10000
Figure Synchronization Resistance
2000 VMains 1600
Rsync (kW)
1200
1000 1200 1400
(µs)
Supply Voltage
T2117 contains voltage limiting funtion connected with mains supply diode resistor supply voltage between limited typical value series resistance calculated follows (Figure page Figure page
Mmin VSmax R1max 0.85 (R1)
Itot
4768A-INDCO-11/03
where Itot P(R1) Mains voltage Limiting voltage Total current consumption Current requirement (without load) Current requirement other peripheral components Power dissipation
Figure Maximum Resistance
VMains
(kW)
Itot (mA)
Figure Power Dissipation According Current Consumption
VMains
Itot (mA)
T2117
4768A-INDCO-11/03
T2117
Absolute Maximum Ratings
Stresses beyond those listed under "Absolute Maximum Ratings" cause permanent damage device. This stress rating only functional operation device these other conditions beyond those indicated operational sections this specification implied. Exposure absolute maximum rating conditions extended periods affect device reliability.
Parameters Symbol Value Unit
Supply current Synchrounous current Output current ramp generator Input voltages Power dissipation Tamb 45°C Tamb 100°C Junction temperature Operating ambient temperature range Storage temperature range
Isync Ptot Ptot Tamb Tstg
+125
Thermal Resistance
Parameters Symbol Value Unit
Junction ambient Junction ambient DIP8
RthJA RthJA
Electrical Characteristics
Tamb 25°C, reference point unless otherwise specified
Parameters Test Conditions Symbol Min. Typ. Max. Unit
Supply-voltage limitation Supply current Voltage limitation Synchronization current Zero detector Output pulse width Output pulse current
Comparator
±Isync ±Isync ±VI0 -VIC
0.12
10.0 10.1
Rsync Rsync
Input offset voltage Input bias current Common-mode input voltage
4768A-INDCO-11/03
Electrical Characteristics (Continued)
Tamb 25°C, reference point unless otherwise specified
Parameters Test Conditions Symbol Min. Typ. Max. Unit
Threshold internal reference
-VRef
Ramp Generator, Figure page
Period
Isync
Final voltage Initial voltage Charge current -VS,
Figure Power Blinking Switch with Duty Cycle 1:1, Power Range
T2117
0.47
T2117
4768A-INDCO-11/03
T2117
Figure Power Switch
Load
T2117
Figure Temperature Control 15°C 35°C with Sensor Monitoring
Load 1000
(250
(Rsync)
Ramp generator
Synchronization
Supply
value 3988
R(25)
R5(1) Full-wave logic Comparator Pulse amplifier
Reference voltage
T2117
R(25) kW/B 3988 R(15) R(35) 64.5 R5(1) determines proportional range.
4768A-INDCO-11/03
Figure Room Temperature Control with Definite Reduction (Remote Control) Temperature Range 30°C
0.35 kW/2
Load
T2117
T2117
4768A-INDCO-11/03
T2117
Figure Two-point Temperature Control Temperature Range 15°C 30°C
Load/1000
(680
T2117
(200
4768A-INDCO-11/03
Figure Two-point Temperature Control Temperature 18°C 32°C Hysteresis ±0.5°C 25°C
Load/400 Rsync
T2117
T2117
4768A-INDCO-11/03
T2117
Ordering Information
Extended Type Number Package Remarks
T2117-3AS T2117-TAS T2117-TAQ
DIP8
Tube Tube Taped reeled
Package Information
Package DIP8
Dimensions
1.64 1.44 7.77 7.47
0.58 0.48 7.62 2.54 0.36
technical drawings according specifications
4768A-INDCO-11/03
Package
Dimensions
5.00 4.85 1.27 3.81 0.25 0.10
6.15 5.85
technical drawings according specifications
T2117
4768A-INDCO-11/03
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4768A-INDCO-11/03
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