ATMEL U2100B

Features
•
•
•
•
•
Adjustable and Retriggerable Tracking Time
Window Monitoring for Sensor Input
Enable Input for Triggering
Internal Noise Suppression (40 ms) and Retrigger Blocking (640 ms)
Two- or Three-wire Applications
Applications
• Motion Detectors
• Touch Sensors
• Timers
1. Description
The timer control circuit U2100B uses bipolar technology. It has different mode selections (zero voltage switch, phase control and relay control). The output stage is
triggered according to input conditions. It can be used in triac application for two- or
three-wire systems as a power switch.
Timer Control
for Triac and
Relay
U2100B
Rev. 4769C–INDCO–07/05
Figure 1-1.
Block Diagram with External Circuit
8
-VRef
C2
Voltage control
monitoring
0.5 VRef
6
Noise
suppression
40 ms
Retrigger
delay
640 ms
Trigger
window
+
-
5
-VS
Sync
Mode
selection
4
L
R1
D1
Rsync
Load
+
Trigger
signal
C1
2
Supply voltage
limitation
Control
logic
RG
3
Z
Vmains
Output
0.65 VRef
1
GND
N
Enable
Ct
0.6 VRef
ON
0.5 VRef
OFF
7
RC Oscillator
Divider 1:210
Rt
2
U2100B
4769C–INDCO–07/05
U2100B
2. Pin Configuration
Figure 2-1.
Pinning DIP8/SO8
GND
1
-VS
2
8
VREF
7
OSC
U2100B
Table 2-1.
OUTPUT
3
6
TRIG
SYNC
4
5
EN
Pin Description
Pin
Symbol
Function
1
GND
Reference point
2
–VS
Supply voltage
3
OUTPUT
4
SYNC
Driver output
Synchronization and mode selection
5
EN
6
TRIG
Enable
Input trigger signal
7
OSC
RC oscillator
8
VREF
Reference voltage
3
4769C–INDCO–07/05
3. General Description
The monostable integrated power-control circuit U2100B can be used according to the mode
selection in relay or triac applications. In addition, it can be used in triac applications for two-wire
systems as power switch (the load in series to the switch), where the supply voltage for the control unit is gained from the remaining phase angle (αmin operation).
Figure 3-1.
Two-wire Circuit
L
Control
N
Figure 3-2.
Three-wire Circuit
L
Control
N
For three-wire switch systems, two operational modes are possible:
– Zero voltage switch operation for triac control
– Static operation for relay control
4
U2100B
4769C–INDCO–07/05
U2100B
3.1
Mode Selection Pin 4 and Supply Voltage Pin 2
The operational modes can be selected by the external voltage at the synchronous input pin 4
(clamping). The mode selection determines the current requirement of the relay's or triac's driver
stage and hence the selection of the supply voltage.
3.2
Zero Voltage Switch Operation (Figure 3-3 on page 6)
Selection condition:
V4 = internal synchronous limitation, without external clamping
VM – VS
R 1 ≈ 0.85 --------------------2 I tot
Itot = IS + Ip + IX
where:
IS
IP
IX
VM
= Supply current of the IC without load
= Average trigger current IG
= External circuit current requirement
= Mains voltage
Required firing pulse width tp
2
t p = --- arcsin
ω
IL × VM
⎛ ------------------⎞
⎝ P × 2⎠
where:
IL
P
= Triac latching current
= Power at load Z
V M [V] × 2sin ( ω × t p [s] ) – 0.7
- – 176
R sync [kΩ] ≈ --------------------------------------------------------------------------------2
1.8 × 10
5
4769C–INDCO–07/05
Figure 3-3.
Zero Voltage Switch Operation
D1
2
R1
-VS
L
C1
Rsync
4
Sync
VM
Z
RG
3
Output
IG
1
GND
3.3
N
DC Operation
Selection condition (Figure 3-4):
+V4 = 6.1V, –V4 = internal limitation where:
R0 ≈ 1/10 Xc
VM – VS
X c = 0.85 --------------------I tot
Itot = IS + IRel + IX
1
C 0 = ----------------ω × XC
Figure 3-4.
DC Operation
2
-VS
22 V
C1
1
GND
Rel
3
Output
N
VM
230 V~
C0
L
R0
IRel
Rsync
4
Sync
6
U2100B
4769C–INDCO–07/05
U2100B
3.4
αmin Operation
Selection condition (Figure 3-5):
–V4 = 6.5 to 7.8V, +V4 = internal limitation
3.6 V
R αmax = R sync ---------------------------------------V R(peak) – 3.6 V
10 V
R αmin = R sync ----------------------------------------V M × 2 – 10 V
VR(peak) is the peak voltage of the remaining phase angle, which should be high enough to generate the supply voltage, VS.
Figure 3-5.
αmin Operation (Two-wire Operation)
D1
IN 4007
-VS
2
C0
R0
Z
L
C1
22 V
4
Sync
Rsync
Rα
1N4148
VM
230 V~
6.8 V
VR(peak)
3
Output
1
GND
C1
=
100 µF/35V
Co
=
0.33 µF/250V ~
Ro
=
390Ω
Rsync
=
220 kΩ
Rα
=
10 kΩ
RG
=
390Ω
D1
=
IN 4007
RG
IG
N
7
4769C–INDCO–07/05
3.5
Tracking Time Pin 7
An internal RC oscillator with a following divider stage 1:210 allows a very long and reproducible
tracking time.
The RC values for the required final time, tt, can be calculated as follows:
6
t t [s] × 10
R t [Ω] = ---------------------------------------------------1.6 × 1024 × C t [µF]
6
t t [s] × 10
C t [µF ] = -------------------------------------------------1.6 × 1024 × R t [Ω]
C t [µF] × R t [Ω] × 1.6 × 1024
t t [s] = -------------------------------------------------------------------------6
10
3.6
Trigger Inputs Pins 5 and 6
Two AND-connected, identical inputs determine the trigger conditions of the monostable time
stages (Figure 3-6, Figure 3-7 on page 9), i.e., both inputs must be in position “ON” so that the
output is switched on. The tracking time starts after the trigger conditions have elapsed. The output ON state is given until the tracking time has elapsed.
Input pin 5 is a simple comparator, whereas input pin 6 is designed as a window discriminator.
The noise suppression for tON = 40 ms prevents peak noise signals at the inputs which could
trigger the circuit.
At the same time, the retrigger function is delayed for a duration of 640 ms (tOFF) to avoid noise
signal that may trigger the relay.
Figure 3-6.
Trigger Condition, Pin 5
V5
0
OFF
T1 = 0.5 VRef
Hysteresis
T2 = 0.65 VRef
ON
VRef
8
U2100B
4769C–INDCO–07/05
U2100B
Figure 3-7.
Trigger Condition, Pin 6
V6
0
ON
T1 = 0.5 VRef
T2 = 0.65 VRef
OFF
ON
VRef
4. 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
Peak current t ≤10 ms
–IS
–is
10
60
mA
mA
Supply voltage
–VS
32
V
Supply
2
Reference voltage source
Output current
8
IO
3
mA
Synchronization
Input current
t ≤10 ms
4
±ISync.
iSync.
5
20
mA
mA
Input voltage
6
–V1
VRef to 0
V
Enable Schmitt Trigger
5
–V1
VRef to 0
V
Collector voltage
–Vo
VS to 2
V
Storage temperature range
Tstg
–40 to +125
°C
Window Monitoring
Input voltage
Driver Output
3
Tj
125
°C
Tamb
0 to 100
°C
Symbol
Value
Unit
RthJA
110
K/W
SO8 on PC board
RthJA
220
K/W
SO8 on ceramic
RthJA
140
K/W
Junction temperature
Ambient temperature range
5. Thermal Resistance
Parameters
DIP8
Junction ambient
9
4769C–INDCO–07/05
6. Electrical Characteristics
VS = –18V, Tamb = 25°C, reference point pin 1, unless otherwise specified.
Parameters
Test Conditions
Supply-voltage limitation
IS = 800 µA
IS = 2 mA
Current consumption
I3 = 0
Supply-voltage Monitoring
Pin
Symbol
Min.
2
–VS
–VS
21
21.3
–IS
Max.
Unit
23
24
V
V
750
µA
2
ON-threshold
15
–VS
OFF-threshold
Reference voltage
Typ.
6.5
–VS
I8 = 0.1 mA
I8 = 1.5 mA
Synchronization
8
V
–VRef
–VRef
4.95
4.75
V
5.45
5.45
V
V
4
Input current
Voltage limitation
I4 = ±1 mA
Remaining phase angle
αmin threshold
ON
Off
Zero identification
±isync
0.1
1.1
mA
±Vsync
8.8
9.4
10
V
±VT
±VT
3.6
1.8
4
2
4.4
2.2
V
V
4
±VT
±IT
±VT
±IT
1.5
8.5
4
20
Zero voltage switch
±Vsync
V4 limit
αmin operation
+Vsync
–Vsync
V4 limit
6.5 to 7.8
V
V
DC mode
–Vsync
+Vsync
V4 limit
6.5 to 7.8
V
V
ON
Zero identification
OFF
Operation Selection
V
µA
V
µA
4
Window Monitoring, Figure 3-7 on page 9
6
Threshold 1
–VI/VRef
0.52
0.49
0.46
Threshold 2
–VI/VRef
0.67
0.65
0.63
Enable Schmitt Trigger, Figure 3-6 on page 8
5
Threshold 1
OFF
–VI/VRef
0.33
0.3
0.27
Threshold 2
ON
–VI/VRef
0.62
0.6
0.58
Oscillator
1
f = --------------------------------1.6 × R t × C t
Threshold 1
7-1
VI/VRef
0.25
0.20
0.15
Threshold 2
7-8
VI
100
200
mV
Input current
7
II
100
500
nA
2
V
Output Stage
Saturation voltage
Output current
10
5
3
I3 = 100 mA
V3-2
I3
100
mA
U2100B
4769C–INDCO–07/05
U2100B
7. Applications
Figure 7-1.
Lamp Time Control 18 Seconds to 23 Minutes for Two-wire Systems
N
1
C0
390 Ω
D1
1N4007
8
330 nF
-VS
2
R0
Triac
330 nF
7
U2100B
390 Ω
C3
6
3
Timer start
R2
R3
4
5
S1
220 kΩ/0.5 W
D3
D2
R7
1N
4148
D4
22 V
33 kΩ
R5
10 kΩ
Tracking
time
C1
5.1 V 100 µF
+
R6
33 kΩ
R4
2.5 MΩ
C2
4.7 µF
-
L
Figure 7-2.
Fan Tracking Time Control 18 Seconds to 23 Minutes
N
M
R2
5
100 kΩ
R7
R0
U2100B
7
2
8
1
330 nF
S1
D1
R5
100 kΩ
R6
C2
R4
4.7 µF
C0
3
6
100 kΩ
C3
390 Ω
330 nF
4
C1
33 kΩ
D1
22 V 100 µF
REL
2.5 MΩ
1000 Ω
L
Tracking time
adjustment
S1 open, motor starts
11
4769C–INDCO–07/05
8. Ordering Information
Extended Type Number
Package
U2100B-xY
Remarks
DIP8
Tube
U2100B-xFPY
SO8
Tube
U2100B-xFPG3Y
SO8
Taped and reeled
9. Package Information
P a c k a g e D IP 8
D im e n s io n s in m m
7 .7 7
7 .4 7
9 .8
9 .5
1 .6 4
1 .4 4
4 .8 m a x
6 .4 m a x
0 .5 m in
0 .5 8
0 .4 8
3 .3
0 .3 6 m a x
9 .8
8 .2
2 .5 4
7 .6 2
8
5
te c h n ic a l d ra w in g s
a c c o rd in g to D IN
s p e c ific a tio n s
1
12
4
U2100B
4769C–INDCO–07/05
U2100B
Package SO8
Dimensions in mm
5.2
4.8
5.00
4.85
3.7
1.4
0.25
0.10
0.4
1.27
6.15
5.85
3.81
8
0.2
3.8
5
technical drawings
according to DIN
specifications
1
4
10. 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
4769C-INDCO-07/05
• Put datasheet in a new template
• Section 3.5 “Tracking Time Pin 7” on page 8 changed
4769B-INDCO-12/04
• Put datasheet in a new template
• Table “Electrical Characteristics” on page 9 changed
13
4769C–INDCO–07/05
Atmel Corporation
2325 Orchard Parkway
San Jose, CA 95131, USA
Tel: 1(408) 441-0311
Fax: 1(408) 487-2600
Regional Headquarters
Europe
Atmel Sarl
Route des Arsenaux 41
Case Postale 80
CH-1705 Fribourg
Switzerland
Tel: (41) 26-426-5555
Fax: (41) 26-426-5500
Asia
Room 1219
Chinachem Golden Plaza
77 Mody Road Tsimshatsui
East Kowloon
Hong Kong
Tel: (852) 2721-9778
Fax: (852) 2722-1369
Japan
9F, Tonetsu Shinkawa Bldg.
1-24-8 Shinkawa
Chuo-ku, Tokyo 104-0033
Japan
Tel: (81) 3-3523-3551
Fax: (81) 3-3523-7581
Atmel Operations
Memory
2325 Orchard Parkway
San Jose, CA 95131, USA
Tel: 1(408) 441-0311
Fax: 1(408) 436-4314
RF/Automotive
Theresienstrasse 2
Postfach 3535
74025 Heilbronn, Germany
Tel: (49) 71-31-67-0
Fax: (49) 71-31-67-2340
Microcontrollers
2325 Orchard Parkway
San Jose, CA 95131, USA
Tel: 1(408) 441-0311
Fax: 1(408) 436-4314
La Chantrerie
BP 70602
44306 Nantes Cedex 3, France
Tel: (33) 2-40-18-18-18
Fax: (33) 2-40-18-19-60
ASIC/ASSP/Smart Cards
1150 East Cheyenne Mtn. Blvd.
Colorado Springs, CO 80906, USA
Tel: 1(719) 576-3300
Fax: 1(719) 540-1759
Biometrics/Imaging/Hi-Rel MPU/
High Speed Converters/RF Datacom
Avenue de Rochepleine
BP 123
38521 Saint-Egreve Cedex, France
Tel: (33) 4-76-58-30-00
Fax: (33) 4-76-58-34-80
Zone Industrielle
13106 Rousset Cedex, France
Tel: (33) 4-42-53-60-00
Fax: (33) 4-42-53-60-01
1150 East Cheyenne Mtn. Blvd.
Colorado Springs, CO 80906, USA
Tel: 1(719) 576-3300
Fax: 1(719) 540-1759
Scottish Enterprise Technology Park
Maxwell Building
East Kilbride G75 0QR, Scotland
Tel: (44) 1355-803-000
Fax: (44) 1355-242-743
Literature Requests
www.atmel.com/literature
Disclaimer: The information in this document is provided in connection with Atmel products. No license, express or implied, by estoppel or otherwise, to any
intellectual property right is granted by this document or in connection with the sale of Atmel products. EXCEPT AS SET FORTH IN ATMEL’S TERMS AND CONDITIONS OF SALE LOCATED ON ATMEL’S WEB SITE, ATMEL ASSUMES NO LIABILITY WHATSOEVER AND DISCLAIMS ANY EXPRESS, IMPLIED OR STATUTORY
WARRANTY RELATING TO ITS PRODUCTS INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
PURPOSE, OR NON-INFRINGEMENT. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, CONSEQUENTIAL, PUNITIVE, SPECIAL OR INCIDENTAL DAMAGES (INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF PROFITS, BUSINESS INTERRUPTION, OR LOSS OF INFORMATION) ARISING OUT
OF THE USE OR INABILITY TO USE THIS DOCUMENT, EVEN IF ATMEL HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. Atmel makes no
representations or warranties with respect to the accuracy or completeness of the contents of this document and reserves the right to make changes to specifications
and product descriptions at any time without notice. Atmel does not make any commitment to update the information contained herein. Unless specifically provided
otherwise, Atmel products are not suitable for, and shall not be used in, automotive applications. Atmel’s products are not intended, authorized, or warranted for use
as components in applications intended to support or sustain life.
© Atmel Corporation 2005. All rights reserved. Atmel ®, logo and combinations thereof, Everywhere You Are ® and others, are registered trademarks or trademarks of Atmel Corporation or its subsidiaries. Other terms and product names may be trademarks of others.
Printed on recycled paper.
4769C–INDCO–07/05