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PDF U6044B Data sheet ( Hoja de datos )
| Número de pieza | U6044B | |
| Descripción | Radiator fan controlled timer | |
| Fabricantes | TEMIC Semiconductors | |
| Logotipo |  |
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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  
TELEFUNKEN Semiconductors
U 6044 B
Absolute Maximum Ratings
Operating voltage
Parameters
Ambient temperature range
Storage temperature range
Junction temperature
t = 1 min
t = 60 min
Symbol
VBatt
Tamb
Tstg
Tj
Value
24
18
–40 to +125
–55 to +125
150
Thermal Resistance
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Junction ambient
Parameters
DIP 8
SO 8
Symbol
RthJA
RthJA
Maximum
110
160
Electrical Characteristics
VBatt =13.5 V, Tamb = 25°C, reference point ground, figure 2, unless otherwise specified
Parameters
Operating voltage
Test Conditions / Pin
R1 w 510 W
t = 1 min
t = 60 min
Symbol
VBatt
Min
6
5 V supply
Without R1, C1
V8, V7
figure 2b
Pins 7 and 8
4.3
Stabilized voltage
Undervoltage threshold
Supply current
Internal Z-diode
Relay output
Pin 7
Power on reset
Push-buttons open Pin 8
I8 = 10 mA
Pin 8
Pin 2
V7
VS
IS
VZ
5.0
2.4
13.5
Saturation voltage
Leakage current
Output current
Output pulse current
I2 = 200 mA
I2 = 300 mA
V2 = 14 V
V2
Ilkg
I2
Load dump pulse
Internal Z-diode
Oscillator input
I2 = 10 mA
f = 0.001 to 40 kHz, see table 1 Pin 6
I2
V2
20
Internal discharge resistance
Switching voltage
Input current
Switching times
Lower
Upper
V6 = 0 V
R6 1.6
V6L 0.9
V6H 2.8
–I6
Debounce time
Delay time
Inputs
cooling off period
Pin 3, 4, 5
t3 5
td 72704
Switching threshold
Ignition input
Pin 3
V3,4,5
1.6
Pull-down resistance
Protective diode
Thermal switch
Switched to VBatt (15)
I3 = 10 mA
Pin 4
R3 13
V3 6.5
Input current
Air condition input
V4 = 0 V
Pin 5
– I4
Input current
V5 = 0 V
– I5
Typ
5.2
14
1.2
2
23
2.0
1.1
3.1
2.0
20
7.1
Max
16
24
18
6.0
5.4
4.2
1.0
16
1.5
100
300
1.5
24
2.4
1.4
3.5
1
7
74752
2.4
50
8.0
2
2
Unit
V
°C
°C
°C
Unit
K/W
K/W
Unit
V
V
V
V
mA
V
V
mA
mA
A
V
kW
V
mA
cycles
cycles
V
kW
V
mA
mA
Rev. A1: 12.12.1994
5
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet U6044B.PDF ] | |
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