u6044b ETC-unknow, u6044b Datasheet

no-image

u6044b

Manufacturer Part Number
u6044b
Description
Radiator Controlled Timer
Manufacturer
ETC-unknow
Datasheet
Radiator fan controlled timer
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
Features
D
D
D
D
D
Cases:
TELEFUNKEN Semiconductors
Rev. A1: 12.12.1994
Delay time range: 4 s to 20 h
Cool-off time starts when thermal switch is closed
RC oscillator determines switching characteristics
Relay driver with Z-diode
Debounced input for coolant temperature switch
Thermal switch
300 k
1 k
Debouncing
R
R
W
W
6
4
DIP 8, SO 8
C
OSC
Oscillator
Frequency divider
2
4 Air condition 5
6
300 k
x
1 k
Monoflop
R
W
W
5
Figure 1 Block diagram with external circuit
R
R
7
2
100 nF
C
4
Ignition 3
R
Logic
3
V
stab
Load dump detection
20 k
Terminal 15
100 nF
C
Power-on reset
3
Stabilization
W
7
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.
D
D
D
D
D
10
Not debounced input for ignition key (Terminal 15)
Low standby current
Load dump protection
RF interference protected
Protection according to ISO/TR 7637-1 (VDE 0839)
Relay control
m
F
output
V
S
8
94 9232
C
1
510
R
1
2
GND
1
W
U 6044 B
x
V
Batt
1

Related parts for u6044b

u6044b Summary of contents

Page 1

TELEFUNKEN Semiconductors Radiator fan controlled timer 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 Features D Delay ...

Page 2

U 6044 B Pin Configuration Pin Symbol Function 1 GND Reference point, ground 2 Output Relay control output 3 Ignition Signal input, ignition 4 S Thermal switch, input Air condition input 6 OSC RC oscillator input 7 ...

Page 3

TELEFUNKEN Semiconductors Oscillator, Pin 6 Oscillator frequency determined mainly -circuit. Resistance determines the charge time whereas the integrated resistance ( discharge time. For the stability of the oscillator ...

Page 4

U 6044 B V Batt Ignition Closed S th Open Closed AC Open Delay time t d Relay 93 7746 e Relay control output behaviour, Pin 2, figure 4 Integrated circuit controls the cooling fan motor in automobile by means ...

Page 5

TELEFUNKEN Semiconductors Absolute Maximum Ratings Parameters Operating voltage Ambient temperature range Storage temperature range Junction temperature Thermal Resistance Parameters Junction ambient DIP Electrical Characteristics V =13 reference point ground, figure 2, unless ...

Page 6

U 6044 B Table 1 Oscillator Fre- De- Delay time quency bounce time min s 1 6000 1229 2 3000 614 3 2000 410 4 1500 307 5 1200 246 6 1000 205 ...

Page 7

TELEFUNKEN Semiconductors Dimensions in mm Package: DIP 8 Package reserve the right to make changes to improve technical design without further notice. Parameters can vary in different applications. All operating parameters must be validated for each customer ...

Related keywords