U2008B ATMEL Corporation, U2008B Datasheet
U2008B
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U2008B Summary of contents
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... Low-cost Motor Control • Domestic Appliance 1. Description The U2008B is designed as a phase-control circuit in bipolar technology. It enables load-current detection as well as mains-compensated phase control. Motor control with load-current feedback and overload protection are preferred applications. Figure 1-1. Block Diagram with Typical Circuit: Load Current Sensing ...
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... Current = f(V ) detector 3 Full wave load current detector Soft start 100 nF BYT51K R 8 470 k 6 Mains voltage compensation U2008B Supply voltage 4 GND limiting Reference - + voltage Voltage monitoring R Set point 220 100 µF ...
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... Ramp current adjustment 7 VSYNC Voltage synchronization 8 OUTPUT Trigger output 2.1 Mains Supply, Pin 5 The integrated circuit U2008B, which also contains voltage limiting, can be connected via the mains supply, see 1 Pin 5, is smoothed by C The series resistance R1 can be calculated as follows 1max where: ...
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... A special feature of the IC is the realization of current synchronization. The device evaluates the voltage at the pulse output between the gate and reference electrode of the triac. This results in saving the separate current synchronization input with specified series resistance. U2008B 4 , (minimum current flow angle ϕ ...
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... V Figure 7 4 Suppression of Automatic Retriggering and Mains Voltage Compensation Mains BZX55 C6V2 , there is an increase of input current at Pin 1. This current increase controls the 6 U2008B (Figure 5-5 on 2-2). 7 U2008B 4 (Figure 5-4 on page . The evalua- 6 Figure 5-7 on Figure 5-5 on page 9). ⏐ 8). , which ...
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... So8 on ceramic 5. Electrical Characteristics Parameters Supply (Pin 5) Supply-voltage limitation Current requirement Voltage Monitoring (Pin 5) Turn-on threshold Phase Control Input current Voltage limitation Reference Ramp (see Figure 5-1 on page Charge current Start voltage U2008B 6 Symbol - ±I syncV ±i syncV -V I ± ϕ ...
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... 0 0 ± 0.28 0. 300 I ±V 0 4.7 nF 3 1.5 nF 400 600 800 1000 U2008B Max. Unit %/K 1.10 V %/K %/K 150 mA µ 7 µA 40 µ µA 0.37 µA/mV 6 µA 400 ...
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... Figure 5-2. Figure 5-3. Figure 5-4. U2008B 8 Pulse Output 120 100 200 400 Output Pulse Width 400 µs/nF p 300 200 100 Option Soft Start µ 4.7 µ -1 1000 600 800 (nF) 10 µ ...
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... Maximum Resistance 100 Max. Series Resistance Load-current Detection 200 - 160 120 -400 -200 V U2008B Reference Point Pin (mA 230 (mA) S Reference Point Pin 4 0 200 400 (mV) (R6) 9 ...
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... Figure 5-8. Figure 5-9. U2008B 10 Power Dissipation Power Dissipation at Series Resistance Power Dissipation of R According to Current Consumption 1 10 Power Dissipation at Series Resistance (mA) S 4712C–AUTO–07/07 ...
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... Package: DIP8 Dimensions in mm 2.54 nom. Drawing-No.: 6.543-5040.01-4 Issue: 1; 16.01.02 4712C–AUTO–07/07 Package DIP8 SO8 SO8 9.8 max. 9.6 ±0.1 1.2 ±0.3 0.53 ±0. 2.54 = 7.62 nom. B 1.54 0. Remarks Tube, Pb-free Tube, Pb-free Taped and reeled, Pb-free 7.62 ±0.15 0 6.3 ±0.1 0.4 A 8.75 ±0.8 technical drawings according to DIN specifications U2008B 11 ...
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... Dimensions in mm 0.4 1.27 Drawing-No.: 6.541-5031.01-4 Issue: 1; 15.08.06 8. 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. 4712C-AUTO-07/07 4712B-AUTO-08/05 U2008B 12 4.9 ±0.1 3. History • Put datasheet in a new template • ...
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... 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. © 2007 Atmel Corporation. All rights reserved. Atmel Atmel Corporation or its subsidiaries. Other terms and product names may be trademarks of others. International Atmel Asia ...