U2350B-FP [TEMIC]
PWM Speed Control for Permanent Excited DC Motors; PWM速度控制的永磁他励直流电动机
| 型号： | U2350B-FP |
| 厂家： | 
TEMIC SEMICONDUCTORS |
| 描述： | PWM Speed Control for Permanent Excited DC Motors |
| 文件： | 总9页 (文件大小：120K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
U2350B-FP
PWM Speed Control for Permanent Excited DC Motors
Description
The monolithic integrated bipolar circuit U2350B is a operation is also possible. In addition, the circuit also
MOSFET or IGBT-control circuit which works on the enables mains-voltage compensated current control,
principle of pulse width modulation (PWM). The overall which maintains the power supplied at a constant level
concept enables the construction of a power controller after the preset threshold has been exceeded.
with mains voltage compensation where intermittent
Features
Pulse width control up to 30 kHz clock frequency
Supply voltage monitoring
Mains supply compensation
Temperature compensated supply voltage limitation
Current regulation
Temperature monitoring with indicator
Active operation indicator
Applications
Domestic equipment
Blink-warn indicator
Tools
Switchable to interval operation
Push-pull output stage for separate supply
Package: SO16
Block Diagram
+VS
2
1
16
GND
12
LED control
Voltage limitation
Push– pull
output
15
14
13
4
8
Temperature
monitoring
Output
control
10
9
PWM Control
6
7
Oscillator
Tristate
5
Program
logic
Current
limitation
11
95 10873
Figure 1. Block diagram
TELEFUNKEN Semiconductors
1 (9)
Rev. A1, 29-May-96
U2350B-FP
Figure 2. Block diagram with external circuit
2 (9)
TELEFUNKEN Semiconductors
Rev. A1, 29-May-96
U2350B-FP
Pin Description
Pin
1
Symbol
LED1
LED2
n.c.
Function
LED1
+V
S
1
2
3
4
5
6
7
8
16
LED output 1
2
LED output 2
LED2
n.c.
15 OUT+
3
Not connected
4
NTC
Monitoring input
Tristate programing
Resistor for oscillator
Capacitor for oscillator
Control input
OUT
OUT–
GND
14
13
12
11
10
9
5
Progr.
6
R
osc
C
osc
NTC
Progr.
7
8
Contr.
9
V
Contr.
Voltage regulation input
Switching output, output S1
Current regulation input
Ground
10
11
12
13
14
15
16
S
1
I
Contr.
R
osc
I
Contr.
GND
OUT–
OUT
– supply for output stage
Output
C
osc
S
1
OUT+
+ supply for output stage
Supply voltage
Contr.
V
Contr.
+V
S
95 11409
Supply, Pin 16
Voltage Monitoring
Whilst the operating voltage is being built up or reduced,
uncontrolled output pulses of insufficient amplitude are
suppressed by the internal monitoring circuit. The latch
The internal voltage limiter in the U2350B enables a
simple supply from the rectified line voltage. The supply
voltage between Pin 16 (+V ) and Pin 12 (ground) is built
S
is also reset, the LED D (operating indicator) between
up via R and is smoothed by C . The typically 5 mA
2
1
7
Pin 2 and Pin 16 is switched off and the control input
supply current is simultaneously used to operate the two
LEDs D , D , which can both be bridged internally. The
“Pin 8” is connected to ground via switch S and a 1 k
3
2
3
resistor. In connection with a switching hysteresis of
approximately 2 V, this mode of operation guarantees
fail-safe start-up each time the operating voltage is
switched on, in the same way as after short mains
interruptions.
supply current therefore reaches Pin 16 either via LEDs
or the internal switches (V ≤ 1.2 V).
sat
Series resistor, R can be calculated as follows:
1,
VMmin – VSmax
Connecting the control input Pin 8 with a capacitor can
therefore make a soft start with rapid recovery possible.
R1max
Itot
whereas
Pulse Width Control with Mains Voltage
Compensation, Pins 8, 9, 10
VMmin
VSmax
Itot
Vmains –15%
Average value of the voltage over the load is controlled
to an infinitely selectable value by the comparator
Comp. 1 with hysteresis. The rectified mains voltage is
maximum supply voltage
ISmax Ix
divided by R and R and lead in Pin 10. The capacitor C
3
4
1
is charged via R until the voltage V , which is present at
the inverting input of Comp. 1, is more positive than the
9
9
ISmax
Ix
Max. current consumption of the IC
control voltage V arriving at the non-inverting input via
8
Current consumption of the external components
an impedance converter. During the charge time, which
is dependent of the mains voltage, the pulse output is at
Here, C must be selected in this way that the voltage at high potential and the switching output Pin 10 is open. If
6
C (figure 2) is not noticeably affected by the load in any
7
V now becomes greater than V , the output from
9 10
mode of operation. For further information regarding Comp. 1 switches over the output stage logic via an AND
mains power supply, refer to figures 6 and 7.
gate.
TELEFUNKEN Semiconductors
3 (9)
Rev. A1, 29-May-96
U2350B-FP
The output stage logic now brings V to low potential By exceeding the maximum current which is adjustable
14
and closes the switching output Pin 10. This has the effect with R , the control dependent voltage V (shunt
8
8
of discharging C via R and the switch S until the characteristic) reaches the dotted lines (series
1
9
1
approximately 300 mV hysteresis of the comparator is characteristic). By applying a current which depends on
completed. The discharge time is dependent on the the load voltage across R , the constant value of the
6
control voltage V .
current can be further influenced. In addition, the current
control limits the starting current.
8
Comp. 1 then switches over again and the cycle begins
once more (see figure 3). This two-state controller
compensates the influence of the mains voltage, with the
result that the motor voltage or motor speed is largely
determined by the magnitude of the control voltage.
In the case of effective current limiting, alteration of the
rectified mains voltage has an effect on the power taken
up. In order to compensate for this influence, the resistor
R is connected to Pin 11. If dimensioned appropriately,
7
the consumed power is independent of changes in the
mains voltage within a wide range of this voltage.
Current Control, Pin 11
If the current flowing through the IGBT (or MOSFET)
Operation Mode Selection, Pin 5
and the shunt resistor R becomes so high that a voltage
8
It is possible to program three modes of operation with the
tristate input, as follows:
higher than 1.5 V arises at Pin 11, a second control loop
formed with the comparator Comp. 2 becomes active,
and overrides the first control loop via an AND gate. This
causes the average value of the current, fed to the motor,
to be controlled to a constant value. This in turn results in
a speed which decreases greatly with the increasing
torque (see figure 4).
a) Intermittent operation (Pin 5 connected to +V )
S
A signal emitted by an internal oscillator (see
figure 5) switches the output stage ON and OFF
periodically via S . This intermittent operation is
2
very suitable for certain uses.
b) Stop function (Pin 5 open)
The output is continuously switched off, the motor is
at reset.
V
9
c) Normal function (Pin 5 connected to V )
12
The motor runs continuously.
V
Temperature Monitoring, Pin 4
10
14
The circuit also has a monitoring input. If a NTC-resistor
is connected to this input, for example, it functions as a
temperature sensor. If the voltage V falls below the first
4
V
threshold V
(approximately 420 mV) as a result of the
T80
increasing temperature, an external LED D , which is
95 10869
3
t
connected between Pin 1 and Pin 2, starts to blink. If the
temperature increases further and the voltage V falls
Figure 3. Pulse width control signal characteristics
4
below
a
second threshold
V
T100
(approximately
350 mV), a latch is set. The latch makes this LED light up
continuously, the output stage is blocked. The motor is
switched-OFF and remains switched-OFF until the
temperature has fallen and until the mains voltage is
switched-OFF and switched-ON again (the latch is solely
Speed
(of rotation)
V
8
I
reset by the voltage monitoring). A second LED D ,
max
2
which is connected between Pin 2 and Pin 16 and which
is continuously illuminated (switch-ON) during normal
operation, is switched-OFF.
In the event of wire breakage in the sensor branch, Pin 4
is pulled up to +V . After the switch-OFF threshold
S
95 10870
Torque
V
TOFF
(approximately V –1.8 V) has been exceeded, the
S
circuit ensures that the latch is set here too. This
guarantees safe operation.
Figure 4. Influence of current control on the characteristic
(curve) of a motor
4 (9)
TELEFUNKEN Semiconductors
Rev. A1, 29-May-96
U2350B-FP
Absolute Maximum Ratings
Reference point Pin 12, unless otherwise specified.
Parameters
Symbol
Value
30
60
Unit
mA
Supply Current
Pin 16
I
S
t ≤ 10 s
i
s
Push-pull output
V
13
≤ V ≤ V , V ≤ V , V ≤ V
I
O
20
mA
14
15
15
16
13
12
Output current
t ≤ 2 ms
i
o
200
Signal outputs
Input current
t ≤ 10 s
I
i
I
30
60
1
mA
mA
I
i
Input currents
Pin 6, 8
Pin 10
I
10
Input voltages
Pin 4, 5, 7, 9, 10, 11
V
I
0 V to V
16
Storage temperature range
Junction temperature
Ambient temperature range
T
T
–40 to +125
+125
–10 to +100
C
C
C
stg
j
T
amb
Thermal Resistance
Parameters
Symbol
Value
Unit
Junction ambient
DIP16
SO16 on PC board
SO16 on ceramic
R
thJA
120
180
100
K/W
K/W
K/W
Electrical Characteristics
V = 15.5 V, T
= 25 C, reference point Pin 12, figure 2, unless otherwise specified.
S
amb
Parameters
Test Conditions / Pins
Symbol
Min.
Typ.
Max.
Unit
Supply voltage limitation I = 5 mA
Pin 16
V
S
16.2
16.3
17.2
17.8
V
S
I = 20 mA
S
Current consumption
Voltage monitoring
Switch-on threshold
Switch-off threshold
Control input
Input voltage range
Input quiescent current
Impedance at lower voltage
Comparator 1
I
3.5
mA
S
Pin 16
V
V
14.0
12.5
14.5
V
V
SON
12.0
0
SOFF
Pin 8
Pin 9
V
7.5
250
V
nA
k
I
I
IB
R
1
I
Input voltage range
Input quiescent current
Hysteresis
V
0
7.5
250
330
3
V
nA
mV
s
IC
I
IB
V = 1.5 V
8
Pin 8 – 9
Pin 9 –14
V
hys
270
300
Delay time
t
d
TELEFUNKEN Semiconductors
5 (9)
Rev. A1, 29-May-96
U2350B-FP
Parameters
Test Conditions / Pins
Pin 10
= 15.5 V, V = 3 V,
Symbol
Min.
Typ.
Max.
Unit
Switch S
1
Leakage current
Saturation voltage
Delay time
V
9
I
1
A
V
s
10
8
R
V = 0 V, V = 0 V
11
I
= 2 mA, V = 0 V,
V
Sat
0.25
10
8
V = 3 V
9
Pin 10 – 14
Pin 11
t
t
3
3
d(r)
d(f)
Comparator 2
Input current
I
1
A
V
V
s
I
Switch-on threshold
Switch-off threshold
Delay time (output)
Push-pull stage
Saturation voltage
V
V
1.12
1.42
1.20
1.50
1.28
1.58
3
TON
TOFF
Pin 11 – 14
Pin 14
Pin 14 – 16
t
d
High side
V
2.4
1.2
V
SatH
I
= –10 mA, V = V
14
15 16
Low side
= 10 mA, V = V
12
V
SatL
I
14
13
Output current limitation
Rise time
V
= V , V = 0 V,
–I
O
100
100
150
150
300
800
250
250
mA
mA
ns
14
12
11
V = 3 V, V = 0 V, t ≤ 1 s
8
9
V
14
= V , V = 0 V,
I
O
16
8
V = 3 V, t ≤ 1 s
9
V
15
= V , V = V ,
t
16
13
12
r
f
C
Gate
= 1 nF
= 1 nF
Fall time
C
Gate
t
ns
Operating indicator
Saturation voltage
I = 5 mA
or
2
V
≤ V
V
1.0
6.6
V
V
16
Soff
Sat
(V ≤ V
Pin 2 – 16
4
T100)
Voltage limitation
V
16
≥ V
,
V
limit
Son
(V > V
)
Pin 2 – 16
4
T100
Overload outputI
Saturation voltage
Voltage limitation
Temperature monitoring
Input current
I = 5 mA
1
V > V
Pin 1 – 2
Pin 1 – 16
Pin 4
V
1.0
8.6
V
V
4
T80
Sat
V ≤ V
V
limit
4
T80
I
500
450
375
nA
mV
mV
V
I
80%-threshold
V
390
325
420
350
V – 1.8
S
T80
T100
TOFF
100%-threshold
Switch-off threshold
Operation mode selection
Voltage
V
V
Pin 5
Pin 5 open (I = 0)
V
V /2
S
5
5
Input current
V = V
V = V
5
I
I
15
15
A
A
5
16
12
–I
I
Oscillator
Input current
Source voltage
Upper saw tooth threshold
Lower saw tooth threshold
Pin 6
Pin 6
Pin 7
Pin 7
I
V
V
Tmax
1
40
A
V
V
V
I
I = – 10 A
6
0.9
9
1.8
6
V
Tmin
6 (9)
TELEFUNKEN Semiconductors
Rev. A1, 29-May-96
U2350B-FP
Parameters
Oscillator frequency
Test Conditions / Pins
C = C = 220 nF,
Symbol
f
osc
Min.
Typ.
1.1
Max.
Unit
Hz
4
osc
see figure 2
= R = 120 k
Pin 7
R
11
osc
Blink frequency
Switching frequency
V
< V ≤ V
Pin 1
Pin 14
f
blink
2.2
1.1
Hz
Hz
T100
4
T80
V = V
5
f
s
16
interval operation
Pulse ratio switch
Pin 14
t /T
p
0.2
0.23
0.26
–
14
10
8
C =100nF
4
Mains Supply
Oscillator Frequency
12
10
8
Rectified Voltage at C
f
osc
= f
blink
/ 2 = t
6
s
6
330nF
220nF
680nF
6
4
2
0
470nF
4
2
0
200
100
0
40
80
120
)
160
0
20
40
60
)
80
95 10299
R
( k
95 10301
R ( k
11
1
Figure 5.
Figure 7.
100
80
Mains Supply
Rectified Voltage
V
=230V–15%
M
60
40
20
0
14
0
2
4
6
8
10
12
95 10300
I
tot
( mA )
Figure 6.
TELEFUNKEN Semiconductors
7 (9)
Rev. A1, 29-May-96
U2350B-FP
Dimensions in mm:
Package: SO16
94 8875
8 (9)
TELEFUNKEN Semiconductors
Rev. A1, 29-May-96
U2350B-FP
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
9 (9)
Rev. A1, 29-May-96
相关型号：
U23J37ZQE22
Rocker Switch, DPDT, Latched, 5A, 28VDC, Solder Terminal, Rocker With Frame Actuator, Panel Mount, ROHS COMPLIANT
ITT
©2020 ICPDF网 联系我们和版权申明