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T2117 Schematic ( PDF Datasheet ) - ATMEL Corporation

Teilenummer T2117
Beschreibung Zero-Voltage Switch with Adjustable Ramp
Hersteller ATMEL Corporation
Logo ATMEL Corporation Logo 




Gesamt 11 Seiten
T2117 Datasheet, Funktion
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Zero-Voltage Switch with Adjustable Ramp
T2117
Description
The integrated circuit, T2117, is designed as a zero-
voltage switch in bipolar technology. It is used to control
resistive loads at mains by a triac in zero-crossing mode.
A ramp generator allows power control function by
period group control, whereas full-wave logic guarantees
that full mains cycles are used for load switching.
Features
D Direct supply from the mains
D Current consumption 0.5 mA
D Very few external components
D Full-wave drive – no DC current component in the
load circuit
D Negative output current pulse typ. 100 mA –
short-circuit protected
D Simple power control
D Ramp generator
D Reference voltage
Applications
D Full-wave power control
D Temperature regulation
D Power blinking switch
Block Diagram
C2
2.2 mF/
10 V
R4
100 kW
R5
12 kW
max
100 kW
min
R6
18 kW
D1 BYT41M
L
220 kW
(250 V~)
R2
(Rsync)
18 kW/
R1 2 W
Load
1000 W
DataSheet4U.com
–VS
2 8 5 C1
1 Ramp
generator
Synchronization
Supply
7
GND
100 mF/
16 V
TIC
236N
VM =
230 V~
MT2
3
+
4+
Full-wave logic
Comparator
6
Pulse
amplifier
100 W
R3
MT1
Reference voltage
1.4 V
T2117
N
DataShee
Figure 1. Block diagram with typical circuit, period group control 0 to 100%
Ordering Information
Extended Type Number
T2117-3AS
T2117-TAS
T2117-TAQ
Package
DIP8
SO8
SO8
Remarks
Tube
Tube
Taped and reeled
Rev. A2, 17-Dec-01
DataSheet4U.com
1 (11)
DataSheet4 U .com






T2117 Datasheet, Funktion
www.DataSheet4U.com
T2117
L
RL
Load
VM = 230 V ~
N VDR
270 kW
56 W
BYT41M
18 kW
1.5 W
8765
T2117
+5 V
CNY21
1234
56 kW
47 mF/
10 V
39 kW
II  1.5 mA
VI
et4U.com
Figure 10. Power switch
DataSheet4U.com
2.2 mF/
10 V
C2
220 kW
(250 V~)
R2
(Rsync)
D1 BYT41M
R1
18 kW/
2W
R8
470 kW
NTC/M87
B value =
3988
BC237
R(25)
R6
100 kW 100 kW
R4
100 kW
1)
R5
1
3
R9
150 W
4
Rp
220 kW
R7
130 kW
2
Ramp
generator
8
Synchronization
5
Supply
7
+
+
Full-wave logic
Comparator
6
Pulse
amplifier
Reference voltage
1.4 V
T2117
Load
1000 W
C1
100 W
R3
L
VM =
230 V~
N
R(25) =100 kW/B =3988
Figure 11. Temperature control 15 to 35°C with sensor monitoring
NTC–Sensor M 87 Fabr. Siemens
R(15) = 159 kW
R51) determines the proportional range
R(35) = 64.5 kW
DataShee
6 (11)
DataSheet4U.com
Rev. A2, 17-Dec-01
DataSheet4 U .com

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