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U6044B の電気的特性と機能

U6044BのメーカーはTEMIC Semiconductorsです、この部品の機能は「Radiator fan controlled timer」です。


製品の詳細 ( Datasheet PDF )

部品番号 U6044B
部品説明 Radiator fan controlled timer
メーカ TEMIC Semiconductors
ロゴ TEMIC Semiconductors ロゴ 




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U6044B Datasheet, U6044B PDF,ピン配置, 機能
TELEFUNKEN Semiconductors
Radiator fan controlled timer
U 6044 B
Description
The bipolar integrated circuit, U 6044 B, is designed as a
radiator fan controlled timer. After the ignition is switched
off, the thermal switch of the engine can activate the
radiator fan via relay for a preset period, to support the
cool-off process. In addition, an air-conditioning contact
can switch on the radiator fan at any time.
Features
D Delay time range: 4 s to 20 h
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D Cool-off time starts when thermal switch is closed
D RC oscillator determines switching characteristics
D Relay driver with Z-diode
D Debounced input for coolant temperature switch
D Not debounced input for ignition key (Terminal 15)
D Low standby current
D Load dump protection
D RF interference protected
D Protection according to ISO/TR 7637-1 (VDE 0839)
Cases:
DIP 8, SO 8
C2
OSC 6
R2
10 mF
C1 R1
Vstab 7
VS 8
510 W
x
VBatt
Oscillator
Stabilization
Power-on reset
Load dump detection
1
GND
Frequency divider
Debouncing
Monoflop
Logic
Relay control 2
output
Thermal switch
300 kRW4
4 Air condition 5
300 kRW5
Ignition 3
C4
100 nF
C3
1 kRW6
1 kW R7
100 nF
R3 20 kW
94 9232
Terminal 15
x
Figure 1 Block diagram with external circuit
Rev. A1: 12.12.1994
1

1 Page





U6044B pdf, ピン配列
TELEFUNKEN Semiconductors
U 6044 B
Oscillator, Pin 6
Oscillator frequency, f, is determined mainly by
R2C2-circuit. Resistance, R2, determines the charge time,
whereas the integrated resistance (2 kW ) is responsible for
discharge time. For the stability of the oscillator frequency,
it is recommended to select R2 much greater than internal
resistance (2 kW ), because the temperature response and
the tolerances of the integrated resistance are considerably
greater than the external resistance value.
Oscillator frequency, f, is calculated as follows:
www.DataSheet4U.com
+ )f
1
t1 t2
where
@t1 = charge time = a 1@R2@C2
t2 = discharge time = a 2 2 kW @C2
a 1 and a 2 are constants and has
a 1 = 0.833 and a 2 = 1.551 when C2 = 470 pF to 10 nF
a 1 = 0.746 and a 2 = 1.284 when C2 = 10 nF to 4700 nF
Debounce time, t3, and the delay time, td, depend on the
oscillator frequency, f, as follows:
t3
+
6@
1
f
td
+
73728 @
1
f
Table 1 shows relationships between t3, td, C2, R2 and
frequencies from 1 Hz to 20 kHz.
Output, Pin 2
Output Pin 2 is an open collector Darlington circuit with
integrated 23-V Z-diode for limitation of the inductive
cut–off pulse of the relay coil. The maximum static
collector current must not exceed 300 mA and the
saturation voltage is typically 1.1 V @ 200 mA.
The output stage can be activated
D directly with the AC input independent of the ignition
input and Sth input
D during the delay time which is started by the ignition
input with the Sth input
Interference voltages and load dump
The IC supply is protected by R1, C1, and an integrated
Z-diode, while the inputs are protected by a series resistor,
integrated Z-diode and RF-capacitor (refer to Figure 3).
The relay control output is protected via the integrated
23-V Z-diode in the case of short interference peaks. It is
switched to conductive condition for a battery voltage of
greater than approx. 40 V in the case of load dump. The
output transistor is dimensioned so that it can withstand the
current produced.
Power-on reset
When the operating voltage is switched on, an internal
power-on reset pulse (POR) is generated which sets the
logic of the circuits to a defined initial condition. The relay
control output is disabled.
Input stages
Ignition
20 k W
Terminal 15
100 nF
Pin 3
7V
2V
+
15 pF
20 kW
94 8813
Figure 3a Input circuit for ignition (Pin 3)
Pin 4, 5
VS (Pin 8)
+
15 pF
94 8815
Figure 3b Input circuit Pin 4 and Pin 5
Figure 3a shows the internal input circuit of ignition
(Pin 3). It has an integrated pull-down resistor (20 kW),
RF-capacitor (15 pF) and 7-V Z-diode. It reacts to voltages
greater than 2 V.
The thermal switch input, Sth, is internally debounced and
only needs an external protection resistor. The air
conditioning input, AC, and the signal input, ignition, are
not debounced and external R/C filters are recommended
to prevent the integrated circuit from unintentional
activation by transients.
The ignition input is switched to VBatt, the Sth and AC
inputs are switched to GND and need pull up resistors
externally (figure 3b).
The detection threshold voltage of all three input stages is
typically 2 V.
Ignition input (terminal 15) is not debounced. Debouncing
can be achieved by external circuit (R3,C3) connected to
Pin 3 (see figures 1 and 5).
Rev. A1: 12.12.1994
3


3Pages


U6044B 電子部品, 半導体
U 6044 B
TELEFUNKEN Semiconductors
Table 1 Oscillator frequency, debounce and delay time dimensioning
Fre-
quency
f
Hz
1
2
www.DataSheet43U.com
4
5
6
7
8
9
10
20
30
40
50
60
70
80
90
100
200
300
400
500
De-
bounce
time
t3
ms
6000
3000
2000
1500
1200
1000
857
750
667
600
300
200
150
120
100
86
75
67
60
30
20
15
12
Delay time
td
min
1229
614
410
307
246
205
176
154
137
123
61
41
31
25
20
18
15
14
12
s
369
246
184
147
C2
nF
4700
1000
1000
1000
1000
1000
1000
1000
1000
1000
100
100
100
100
100
100
100
100
100
10
10
10
10
R2
kW
280
650
440
330
260
220
190
160
140
130
650
440
330
260
220
190
160
140
130
600
400
300
240
Fre-
De-
Delay time
C2
R2
quency bounce
f time
td
t3
Hz ms min s nF kW
600 10
123 10 200
700 9
105 10 170
800 8
92 10 150
900 7
82 10 130
1000
6
74 10 120
2000
3.00
37 1 600
3000
2.00
25 1 400
4000
1.50
18 1 300
5000
1.20
15 1 240
6000
1.00
12 1 200
7000
.86
11 1 170
8000
.75
9 1 150
9000
.67
8 1 130
10000
.60
7 1 120
11000
.55
6.7 1 110
12000
.50
6.1 1
99
13000
.46
5.7 1
91
14000
.43
5.3 1
85
15000
.40
4.9 1
79
16000
.38
4.6 1
74
17000
.35
4.3 1
70
18000
.33
4.1 1
66
19000
.32
3.9 1
62
20000
.30
3.7 1
59
6 Rev. A1: 12.12.1994

6 Page



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部品番号部品説明メーカ
U6044B

Radiator fan controlled timer

TEMIC Semiconductors
TEMIC Semiconductors


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