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U2100B
Timer Control for Triac and Relay
Description
The timer control circuit, U2100B, uses bipolar technology. It has different mode selections (Zero voltage switch, Phase control, Relay control). The output stage is triggered according to input conditions. It can be used in triac application for two or three wire system as a power switch.
Features
D Adjustable and retriggerable tracking time D Window monitoring for sensor input D Enable input for triggering D Internal noise suppression (40 ms) and retrigger
blocking (640 ms)
Applications
D Motion detectors D Touch sensors D Timer
D Two or three wire application
Package: DIP8, SO8
8 -VRef C2 0.5 VRef + - Trigger signal 6 Trigger window + - 5 0.6 VRef
Supply voltage limitation Voltage control monitoring Sync Mode selection
2 -VS 4
C1 L R1 Rsync Load Z D1
Noise suppression 40 ms Retrigger delay 640 ms
Control logic
3 Output
RG
Vmains
1 Enable Ct 7 RC Oscillator Rt
95 9876
GND 0.6 VRef 0.5 VRef ON OFF Divider 1:210
N
Figure 1. Block diagram with external circuit
TELEFUNKEN Semiconductors Rev. A1, 30-May-96
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U2100B
Pin Description
GND -VS Output Sync 1 8 VRef Osc TRIG Pin 1 2 3 4 5 6 7 8 Symbol GND -VS Output Sync EN TRIG Osc VRef Function Reference point Supply voltage Driver output Synchronisation and mode selection Enable Input trigger signal RC Oscillator Reference voltage
2
7
3
6
4
95 9945
5
EN
General Description
Monostable integrated power control circuit, U2100B, can be used according to mode selection in relay's or triac's applications. Beyond that, it can be used in triacapplication for two wire system as power switch, (being the load in series to the switch) whereas the supply voltage for the control unit is gained from phase rest angle (amin-operation). L For three wire switch, two modes of operations are possible: - Zero voltage switch operation for triac control - Static operation for relay control
Mode Selection Pin 4 and Supply Voltage Pin 2
Operation modes can be selected by external voltage at the sync. input Pin 4 (clamping). Mode selection determines the current requirement of driver stage for relay's or triac's and hence the selection of supply voltage.
Control
Zero Voltage Switch Operation, Figure 4
Selection condition: V4 = internal sync limitation, without external clamping R1 N
95 9949
[ 0.85 V2 -V I
M tot
S
Itot = IS + Ip + IX
Figure 2. Two wire circuit
L
whereas: = Supply current of IC without load IS = Average trigger current IG IP IX = External circuit current requirement VM = Mains voltage Required firing pulse width tp 2 + w arcsin
Control tp
IL P
VM 2
whereas: = Triac latching current IL P = Power at load Z N
95 9950
Figure 3. Three wire circuit
R sync[kW]
[ V [V]
M
2 sin 1.8
w
10
t p[s] - 0.7
-2
-176
2 (9)
TELEFUNKEN Semiconductors Rev. A1, 30-May-96
U2100B
amin-operation, Figure 6
2 -VS D1 R1 L C1 4 Sync Z VM Rsync
Selection condition: -V4 = 6.5 to 7.8 V +V4 = int. limitation
R amax
3 Output 1 GND RG IG N
+R +R
sync
3.6 V V R(peak)-3.6 V 10 V 2 -10 V
R amin
sync
VM
95 9951
VR(peak) is the peak voltage of the rest phase angle, which should be high enough to generate the supply voltage, VS.
Figure 4.
DC Operation, Figure 5
Selection condition: +V4 = 6.1 V -V4 = int. limitation whereas: R0
2 -VS C1 BZX85 C22V Rsync
X c
D1 IN 4007
Co
Ro
Z L
[ 1 10 X V -V X + 0.85 I I +I )I )I 1 C+ wX
M S c tot tot S Rel 0 C
4 Sync Ra
VM 230 V~
1N4148 BZX55 6V8
3 Output RG IG 1 GND 4xBYX86 VM Co 230 V~ L Ro
95 9953
VR(peak)
2 -VS C1 1 GND
BZX85C22V N
N
Rel 3 Output IRel Rsync 4 Sync
Figure 6.
95 9952
Figure 5.
C1 Co Ro Rsync Ra RG D1
= = = = = =
=
100 mF/35 V 0.33 mF/250 V 390 W 220 kW 10 kW 390 W IN 4007 3 (9)
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U2100B
Tracking Time Pin 7
An internal RC oscillator with following divider stage 1:210 allows a very long and reproducible tracking time. RC-values for required final time, tt, can be calculated as follows: R t [W] [s] + 1.6 t1024 10 [mF] C
t 6 t
V5 0 OFF T1 = 0.5 VRef Hysteresis T2 = 0.6 VRef ON VRef
95 9954
C t [mF]
[s] + 1.6 t102410 [W] R
t 6 t
t t [s]
+ C [mF]
t
R t [W] 10 6
1.6
1024
Figure 7. Trigger condition, Pin 5
Trigger Inputs Pins 5 and 6, Figures 7 and 8
Two AND-connected, identical inputs determine the trigger conditions of monostable time stages, i.e., both inputs must be in position "ON" so that the output is switched ON. The tracking time starts after the trigger conditions has elapsed. The output ON state is given until the tracking time is over. Input Pin 5 is a simple comparator whereas input Pin 6 is built up as a window discriminator. Noise suppression for tON = 40 ms guarantee, that there is no peak noise signals at the inputs which could trigger the circuit. At the same time, the retrigger is delayed for a duration of 640 ms (tOFF), to avoid noise signal to trigger the relay. T2 V6 0 ON OFF ON VRef
Figure 8. Trigger condition, Pin 6
95 995
T1
+ 0.5 V + 0.65 V
Ref Ref
4 (9)
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U2100B
Absolute Maximum Ratings
Reference point Pin 1, unless otherwise specified Parameters Supply Supply current Peak current t 10 ms Supply voltage Reference voltage source Output current Synchronization Input current t 10 ms Window monitoring Input voltage Enable-Schmitt trigger Input voltage Driver output Collector voltage Storage temperature range Junction temperature Ambient temperature range Pin 2 -IS -is -VS Pin 8 IO Pin 4 ISync. iSync. -V1 -V1 Pin 3 -Vo Tstg Tj Tamb VS to 2 -40 to +125 125 0 to 100 V C C C 3 5 20 VRef to 0 VRef to 0 mA mA 10 60 32 mA V Symbol Value Unit
Pin 6 Pin 5
V V
Thermal Resistance
Parameters Junction ambient DIP8 SO8 on PC board SO8 on ceramic Symbol Value 110 220 140 Unit
RthJA
K/W
Electrical Characteristics
VS = -18 V, Tamb = 25C, reference point Pin 1, unless otherwise specified Test Conditions / Pins IS = 800 mA Pin 2 IS = 2 mA Current consumption I3 = 0 Supply voltage monitoring Pin 2 ON-Threshold OFF-Threshold Reference voltage I8 = 0.1 mA Pin 8 I8 = 1.5 mA Parameters Supply voltage limitation Symbol -VS -IS -VS -VS -VRef 15 6.5 4.75 4.55 5.25 5.25 Min 21 21.3 Typ Max 23 24 750 Unit V
mA
V V V
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U2100B
Parameters Synchronization Input current Voltage limitation Rest phase angle amin-threshold Zero-identification Zero-identification Test Conditions / Pins Pin 4 I4 = 1 mA ON Off Pin 4 ON OFF Operation selection Zero voltage switch amin-operation DC mode Window monitoring figure 4 Threshold 1 Threshold 2 Enable-Schmitt trigger Threshold 1 OFF Threshold 2 ON Oscillator f Pin 6 -VI/VRef -VI/VRef Pin 5 -VI/VRef -VI/VRef 1 Rt Ct Pin 7 - 1 Pin 7 - 8 Pin 7 Pin 3 0.33 0.62 0.3 0.6 0.27 0.58 0.52 0.67 0.49 0.65 0.46 0.63 Pin 4 Vsync +Vsync -Vsync -Vsync +Vsync V4 limit V4 limit 6.5 to 7.8 V4 limit 6.5 to 7.8 V V VT IT VT IT 1.5 8.5 4 20 Symbol isync Vsync VT VT Min 0.1 8.8 3.6 1.8 Typ Max 1.1 10 4.4 2.2 Unit mA V V V V
9.4 4 2
mA mA
V
+ 1.6
Threshold 1 Threshold 2 Input current Output stage limiter diode w.r.t. Pin 1 Saturation voltage I3 = 100 mA Output current
VI/VRef VI II V3-2 I3
0.25
0.20 100 100
0.15 200 500 2
mV nA V mA
100
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U2100B
Applications
N 1 390W Ro TIC226 R3 220 kW / 0.5 W D3 1N 4148 D2 BZX85C22 L
Figure 9. Lamp time control 18 sec. to 23 min. for two wire systems
95 9956
8 330 nF
Co 330 nF
1N4007
D1
-VS 2 7
390W 3 R2 4 R7 10 kW
U2100B
6
C3 Timer start 5 R5 33 kW
+
S1
D4 5.1 V BZX55 100 mF
C1
Tracking time 2.5 MW
R6
33 kW 4.7 mF C2
R4
-
N
95 9957
M R2 330 nF Co 390W Ro 4 100 kW 3
5 R7 6 100 kW C3 330 nF
U2100B
7 8 R5 33 kW D1 BZX85C22 2.5 MW Tracking time adjustment
Figure 10. Fan tracking time control 18 sec. to 23 min.
2
S1
1 D1 C1 100 mF REL 1000W S1 open, motor starts L
100 kW C2 4.7 mF
R6 R4
TELEFUNKEN Semiconductors Rev. A1, 30-May-96
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U2100B
Dimensions in mm
Package: DIP8
94 8862
Package: SO8
94 8873
8 (9)
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U2100B
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
TELEFUNKEN Semiconductors Rev. A1, 30-May-96
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