U211B-M Atmel, U211B-M Datasheet
U211B-M
Specifications of U211B-M
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U211B-M Summary of contents
Page 1
... Current Requirement Description The integrated circuit U211B is designed as a phase-control circuit in bipolar technol- ogy with an internal frequency-to-voltage converter. The device includes an internal control amplifier which means it can be used for speed-regulated motor applications. Amongst others, the device features integrated load limitation, tacho monitoring and soft-start functions, to realize sophisticated motor control systems ...
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... C Soft start soft 14 I Load-current sensing sense 15 OVL Overload adjust 16 V Reference voltage Ref 17 V Voltage synchronization sync 18 PB/TM Pulse blocking/tacho monitoring U211B 2 I PB/ sync GND Output OVL 4 15 U211B Retr sense CTR/OPO F/V OP sync Ref soft 4752B–INDCO–09/05 ...
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... OP non-inverting input 11 CTR/OPO Control input/OP output 12 C Soft start soft 13 I Load-current sensing sense 14 OVL Overload adjust 15 V Reference voltage Ref 16 V Voltage synchronization sync 4752B–INDCO–09/ sync GND Output 4 13 U211B F sync V Ref OVL I sense C soft CTR/OPO OP+ OP U211B 3 ...
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... Mains Supply The U211B is equipped with voltage limiting and can therefore be supplied directly from the mains. The supply voltage between pin 2 (+ pol/_|_) and pin 3 builds up across D is smoothed Further information regarding the design of the mains supply can be found in the section “Design Hints” on page from the supply voltage and is used for regulation ...
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... Soft Start tot t = Build-up of supply voltage Charging starting voltage Dead time Run-up time Total start-up time to required speed tot with a current of typically 45 µ U211B reducing 2 increases, resulting in a progressively rising Figure 6-1 5 ...
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... The amount of remaining ripple on the output voltage on pin 10 is dependent The ripple V will then also be reduced. The value of this capacitor should be chosen to fit the particular control loop where it is going to be used. U211B (Hz Revolutions per minute p = Number of pulses per revolution at the converter output on pin 10 ...
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... These behaviors are not damag- ing and can be tolerated. 4752B–INDCO–09/05 –1.25V. After cycling through the switching point hysteresis, the 18 –1.5V, followed by a soft start such as after turn-on. 18 Operation Delay Figure 10-17 on page , C 4 U211B = 2 k with µF 10V 21) with differential input compares , C ...
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... A large amount of ripple also leads to a large peak of acceleration. The measuring resistor R age across it does not exceed 600 mV. U211B 8 and produces a current proportional to the voltage on pin 14. This current If, following high-current amplitudes or a large ...
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... C 5-3 Component Component R Increasing C Increasing 9 9 Decreases n.e. Decreases n.e. n.e. n.e. Increases Increases Increases Increases = ( (n) = f(R ) can be taken from GT GT and this is repeated until either the triac fires any repetition rate set U211B Figure 9 ...
Page 10
... To achieve a high noise immunity, a maximum ramp voltage of 6V should be used. The typical resistance R can be calculated from I as follows 10% lower value of R (under worst case conditions) is recommended. Figure 7-2. U211B 10 to pin 7 and pin 2 should be as short as possible. The low temperature coefficient is desirable. 2 and C should be as short as possible ...
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... Mains voltage = Supply voltage on pin 3 = Total DC current requirement of the circuit = Current requirement of the Average current requirement of the triggering pulse = Current requirement of other peripheral components Figure 10-14 on page 20. U211B for worst case – M Smin R = ---------------------------- - 1min 2 I Smax 19, Figure 10-15 on page 19 and ...
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... Input voltage Input current Soft Start Input voltage Pulse Output Reverse voltage Pulse Blocking Input voltage Amplifier Input voltage Pin 9 open Reference Voltage Source Output current Storage temperature range Junction temperature Ambient temperature range U211B 12 Pins Symbol 3 – – syncI 17 I syncV 1 ± ...
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... 1.06 1.13 1.18 Ref TC 0.5 V Ref I 100 155 190 o I 0.01 3 – 0. –I 75 110 145 120 165 O Y 1000 f U211B Unit K/W K/W K/W Unit V Limit mV µA V mV/K mA µA µ µA mV µA µA µA/V 13 ...
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... Converter Active (see Figure 10-3 on page Starting current Final current Discharge current Automatic Retriggering (see Figure 10-13 on page Repetition rate Load Limiting (see Figure 10-9 on page Operating voltage range Offset current Input current Output current Overload ON U211B 14 Test Conditions Pins 1. TOFF ...
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... Figure 10-2. Soft-start Charge Current (f/V Converter Non-active) Figure 10-3. Soft-start Charge Current (f/V Converter Active) 4752B–INDCO–09/05 240 Reference Point Pin 2 200 10 nF 4.7 nF 2.2 nF 160 120 1 0.2 0.4 0.6 0 100 Reference Point Pin (V) 13 100 80 Reference Point Pin (V) 13 U211B 1 ...
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... Figure 10-4. Soft-start Voltage (f/V Converter Non-active) Figure 10-5. Soft-start Voltage (f/V Converter Active) Figure 10-6. Soft-start Function U211B Reference Point Pin (C3 Reference Point Pin (C3 Reference Point Pin (C3) Motor Standstill (Dead Time) Motor in Action 4752B–INDCO–09/05 ...
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... Figure 10-8. Amplifier Output Characteristics Figure 10-9. Load Limit Control 4752B–INDCO–09/05 500 250 Reference Point Pin 2 0 -250 -500 - (V) 8 100 50 0 -50 Reference Point -100 for I = -4V 12 -300 -200 -100 0 100 200 V (V) 10-11 200 150 100 (V) 15-16 U211B 2 4 300 8 17 ...
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... Figure 10-10. Load Limit Control f/V Dependency Figure 10-11. Load Current Detection Figure 10-12. Pulse Output U211B 18 200 150 100 (V) 10-16 250 200 150 100 Shunt 100 200 300 400 500 600 V (mV) 14-2 100 0.8V 1. 200 400 600 800 700 1000 4752B– ...
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... Figure 10-13. Automatic Retriggering Repetition Rate Figure 10-14. Determination of R Figure 10-15. Power Dissipation of R 4752B–INDCO–09/ Mains Supply 230V (mA) tot Mains Supply 230V U211B ...
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... Figure 10-16. Power Dissipation of R U211B 20 According to Current Consumption Mains Supply 230V (mA) tot 15 4752B–INDCO–09/05 ...
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... Soft start to voltage converter -V Ref µF/16V 220 2.2 µF/16V D1 1N4007 TIC R12 226 180 4 Output pulse 3 Supply 22 µ voltage C1 25V 2 + limitation + GND 22 µF C11 16 Reference voltage Voltage monitoring Pulse blocking 18 tacho monitoring 8 C4 220 nF R5 Speed sensor 1 k U211B 230V N 21 ...
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... R12 180 C1 22 µF + 25V 1W Figure 10-17 on page 4.7 µF 10V 100 k + 220 nF C3 R11 2.2 µF 100 10V + 2.2 µF/10V U211B 2.2 nF 220 nF Speed sensor 21), but when reaching the maximum load, the C10 2.2 µF 10V + C6 R31 250 k Set speed C7 ...
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... C8 R6 4.7 µF 10V 100 k + 220 nF C3 R11 2.2 µF 100 10V + 2.2 µF/10V U211B 2.2 nF 220 nF Speed sensor flows. This function is effected by the thyristor, O U211B C10 2.2 µF 10V + C6 R31 250 k Set speed C7 voltage + R13 680 pF over the internal 14 23 ...
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... Figure 10-20. Speed Control, Automatic Retriggering, Load Limiting, Soft Start, Tacho Control L R10 1 k 1N4004 230V ~ U211B 24 C11 4.7 µF 2.2 µ µF/10V R3 220 U211B 1. GND -VS 470 k R12 220 C1 22 µF + 25V C8 C10 220 R11 C3 100 nF 1.5 M 10V + 250 k Set speed ...
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... D2 R15 C4 C13 4.7 µF R8 10V 220 R31 470 k 100 k 10 µF/10V + C8 R11 470 680 220 3.3 nF 470 nF R10 R17 1.5 k 100 BZX55 100 µF Z3 C10 + C9V1 10V U211B R18 Set speed min. R13 Set speed max. CNY70 R16 470 25 ...
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... The speed can now be adjusted as desired by means The switch-off power of the limiting-load control can be set by R U211B 26 C9 4.7 µF 10V + R9 C3 2.2 µF 220 k 10V + C11 U211B GND -VS R12 100 3.3 nF Figure 10-22 on page when and R are in minimum position, the motor just turns. ...
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... Remarks Tube Tube Taped and reeled 7.77 7.47 4.8 max 6.4 max 3.3 0.5 min 0.36 max 9.8 8.2 10 technical drawings according to DIN specifications 9 5.2 4.8 3.7 1.4 0.2 0.25 3.8 0.10 6.15 5.85 technical drawings according to DIN specifications U211B 27 ...
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... 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. 4752B-INDCO-09/05 U211B 28 History Put datasheet in a new template First page: Pb-free logo added Page 27: Ordering Information changed 4752B–INDCO–09/05 ...
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