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U209B3 데이터시트 PDF




TEMIC Semiconductors에서 제조한 전자 부품 U209B3은 전자 산업 및 응용 분야에서
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부품번호 U209B3 기능
기능 Phase Control Circuit - Tacho Applications
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U209B3 데이터시트, 핀배열, 회로
TELEFUNKEN Semiconductors
U209B3/ U209B3–FP
Phase Control Circuit – Tacho Applications
Description:
The integrated circuit U209B3, is designed as a phase
control circuit in bipolar technology. It has also protection
circuit for the supply. Due to integration of many
functions, it leads to significant cost and space saving as
well as increased reliability. At the same time, it gives the
designer free hand to select varieties of regulators to
choose from and switching characteristics according to its
choice.
Features
D Internal frequency to voltage converter
D Externally controlled integrated amplifier
D Automatic soft start with minimised ”dead time”
D Voltage and current synchronisation
D Retriggering
D Triggering pulse typ. 155 mA
D Internal supply voltage monitoring
D Temperature compensated reference source
D Current requirement 3 mA
Package: DIP14, SO16
14(16)
1(1)
Voltage / Current
detector
Automatic
retriggering
Output
pulse
4(4)
10(10)
+
Control
amplifier
9(9)
Phase
control unit
ö = f (V12)
Supply
voltage
limitation
Reference
voltage
Voltage
monitoring
5(5)
6(6)
3(3) –VS
2(2)
GND
13(15)
Rev. A1: 01.09.1995
s
11(11)
Soft start
12(12)
Frequency
to voltage
converter
8(8) 7(7)
Figure 1. Block diagram – SO 16 in bracket
Preliminary Information
95 10691
1 (15)




U209B3 pdf, 반도체, 판매, 대치품
TELEFUNKEN Semiconductors
U209B3/ U209B3–FP
VC3
V1
2
95 10272
V0
t
1
t
2
t
3
ttot
t
Figure 4. Soft–start
Frequency to Voltage Converter
The internal frequency to voltage converter
(f/V-converter) generates a DC signal on Pin 9 which is
proportional to the rotational speed using an AC signal
from a tacho–generator or a light beam whose frequency
is in turn dependent on the rotational speed. The high
impedance input with a switch–on threshold of typ. –
100 mV gives very reliable operation even when
relatively simple tacho–generators are employed. The
tacho-frequency is given by:
n
f = p[Hz]
60
n = revolutions per minute
p = number of pulses per revolution
The converter is based on the charge pumping principle.
With each negative half wave of the input signal, a
quantity of charge determined by C5 is internally
amplified and then integrated by C6 at the converter
output on Pin 9. The conversion constant is determined
by C5, its charging voltage of Vch, R6 (Pin 9) and the
internally adjusted charge amplification Gi.
k = Gi . C5 . R6 . Vch
The analog output voltage is given by
Vo = k . f.
whereas: Vch = 6.7 V
Gi = 8.3
The values of C5 and C6 must be such that for the highest
possible input frequency, the maximum output voltage
does V0 does not exceed 6 V. While C5 is charging up the
Ri on Pin 8 is approx. 6 kΩ. To obtain good linearity of the
f/V converter the time constant resulting from Ri and C5
should be considerably less (1/5) than the time span of the
negative half cycle for the highest possible input
frequency. The amount of remaining ripple on the output
voltage on Pin 9 is dependent on C5, C6 and the internal
charge amplification.
Vo =
Gi . Vch . C5
C6
The ripple Vo can be reduced by using larger values of
C6, however, the maximum conversion speed will than
also be reduced.
The value of this capacitor should be chosen to fit the
particular control loop where it is going to be used.
Control Amplifier
The integrated control amplifier with differential input
compares the set value (Pin 10) with the instantaneous
value on Pin 9 and generates a regulating voltage on the
output Pin 11 (together with external circuitry on Pin 12)
which always tries to hold the real voltage at the value of
the set voltages. The amplifier has a transmittance of typi-
cally 110 mA/V and a bipolar current source output on Pin
11 which operates with typically ±100 mA. The
amplification and frequency response are determined by
R7, C7, C8 and R8 (can be left out). For operation as a
power divider, C4, C5, R6, C6, R7, C7, C8 and R8 can be
left out. Pin 9 should be connected with Pin 11 and Pin 7
with Pin 2. The phase angle of the triggering pulse can be
adjusted using the voltage on Pin 10. An internal limiting
circuit prevents the voltage on Pin 11 from becoming
more negative than V13 + 1 V.
Pulse Output Stage
The pulse output stage is short circuit protected and can
typically deliver currents of 125 mA. For the design of
smaller triggering currents, the function IGT = f (RGT) has
been given in the data sheets in the appendix.
Automatic Retriggering
The automatic retriggering prevents half cycles without
current flow, even if the triacs is turned off earlier e.g. due
to not exactly centred collector (brush lifter) or in the
event of unsuccessful triggering. If it is necessary, another
triggering pulse is generated after a time lapse of
tPP = 4.5 tP and this is repeated until either the triac fires
or the half cycle finishes.
Rev. A1: 01.09.1995
Preliminary Information
5 (15)

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U209B3 전자부품, 판매, 대치품
U209B3/U209B3–FP
TELEFUNKEN Semiconductors
Parameters
Test Conditions / Pin
Frequency to voltage converter
Input bias current
Pin 7
Input voltage limitation
±II = 1 mA
Pin 7
Pin 7
Turn–on threshold
Pin 7
Turn–off threshold
Pin 7
Discharge current
Figure 2
Pin 8
Charge transfer voltage
Pin 8
Charge transfer gain I9 / I8
Pin 8/9
Conversion factor
C8 = 1 nF, R9 = 100 kW
Operating range f/V output Ref. point Pin 13 Pin 9
Linearity
Soft start
Figures 7 to 11 Pin 12
f/v–converter non active
Starting current
Final current
f/v–converter active
V12 = V13, V7 = V2
V12 = –0.5 V
Starting current
Final current
Discharge current
V12 = V13
V12 = –0.5 V
Restart pulse
Symbol
IIB
+VI
–VI
–VTON
–VTOFF
Idis
Vch
Gi
k
VO
IO
IO
IO
IO
–IO
Min
660
7.25
20
6.50
7.5
20
50
2
30
0.5
Typ
0.6
100
50
0.5
6.70
8.3
5.5
0–6
±1
30
85
4
55
3
Max Unit
2 mA
750 mV
8.05 V
150 mV
mV
mA
6.90 V
9.0
mV/Hz
V
%
50 mA
130 mA
6 mA
80 mA
10 mA
8 (15)
Preliminary Information
Rev. A1: 31.09.1995

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