Radiator Controlled Timer bipolar integrated circuit, U6049B, des

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Radiator Controlled Timer bipolar integrated circuit, U6049B, des

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U6049B
Radiator Controlled Timer
bipolar integrated circuit, U6049B, designed radiator controlled timer. After ignition switched off, thermal switch engine activate radiator relay preset period support cooling process.
Features
Delay time range: Cooling time starts when thermal switch closed RC-oscillator determines switching characteristics Relay driver with Z-diode Debounced input coolant temperature switch
debounced input ignition (Terminal Load-dump protection interference protected Protection according ISO/TR 7637-1 (VDE 0839)
Ordering Information
Extended Type Number U6049B U6049B-FP Package DIP8 Remarks
Block Diagram
Oscillator Vstab VBatt
Stabilization Power-on reset Load-dump detection
Frequency divider
Debouncing
Monoflop
Logic
Relay control output
Output
Thermal switch
Ignition Programming
8748
VBatt
Terminal
Figure Block diagram with external circuit
TELEFUNKEN Semiconductors Rev. 04-Feb-97
U6049B
Configuration
Symbol Output Ignition Program Vstab Function Reference point, ground Relay control output Signal input, ignition Thermal switch, input Programming input oscillator input Stabilized voltage Supply voltage Output Vstab Program
13313
U6049B
Ignition
Figure Pinning
Functional Power Supply,
reasons interference protection surge immunity, supply voltage (Pin must provided with circuit shown figure Dropper resistor, limits current case overvoltage, whereas smoothes supply voltage Recommended values are: integrated Z-diode protects supply voltage,VS. Therefore, operation possible between supplied VBatt. However possible operate integrated circuit with supply, should free interference voltages. this case, connected shown figure R1C1 circuit omitted.
VBatt
VBatt
U6049B U6049B
13312 13311
Figure Basic circuit voltage supply oscillator
Figure Basic circuit
TELEFUNKEN Semiconductors Rev. 04-Feb-97
U6049B
Oscillator,
Oscillator frequency, determined mainly R2C2-circuit. Resistance determines charge time, whereas integrated resistance responsible discharge time. stability oscillator frequency, recommended select much greater than internal resistance kW), because temperature response tolerances integrated resistance considerably greater than external resistance value. Oscillator frequency, calculated follows:
Power-on Reset
When operating voltage switched internal power-on reset pulse (POR) generated which sets logic circuits defined initial condition. relay control output disabled.
Ignition Terminal
8813
where charge time discharge time
Figure Input circuit ignition (Pin
constants 0.833 1.551 when 0.746 1.284 when 4700 Debounce time, delay time, depend oscillator frequency, follows:
8815
73728
Figure Input circuit
Table shows relationships between frequencies from kHz.
Output,
Output open-collector Darlington circuit with integrated 23-V Z-diode limitation inductive cut-off pulse relay coil. maximum static collector current must exceed saturation voltage typically
Relay Control Output behavior,
U6049B controls cooling motor automobile means relay. Figure shows internal input circuit ignition (Pin integrated pull-down resistor kW), RF-capacitor Z-diode. reacts voltages greater than programming input, thermal switch input, there neither pull-up pull-down resistor integrated internally (see figure reduce standby current through internal Z-diode selecting higher value resistance (see figure kW). Resistance determines contact current through thermal control switch, Sth. Ignition input (terminal debounced. Debouncing achieved external circuit (R3,C3) connected (see figures
Interference Voltages Load-Dump
supply protected integrated Z-diode, while inputs protected series resistor, integrated Z-diode RF-capacitor. relay control output protected integrated 23-V Z-diode case short interference peaks. switched conductive condition battery voltage greater than approx. case load-dump. output transistor dimensioned that withstand current produced.
TELEFUNKEN Semiconductors Rev. 04-Feb-97
U6049B
VBatt
Ignition closed open
Delay time (internal) Relay 5=Vstab: Relay GND:
8817
Programming
stopped, open
Figure Timing waveform
programming input (Pin high-ohmic should therefore connected (Vstab) GND. relay control output shown according connection. Thermal switch input, debounced (see figure Relay control output, disabled when battery voltage, VBatt, applied. Relay control output follows conditions switch, Sth, only when ignition switched-ON. This possible only after debounce time, this case connected Timing waveforms shown figure Total delay time, ON-pulses caused thermostatic switching. This down once parts. (Pin open, oscillator stopped (switched-off) internally, when starts (Sth closed), delay time, starts running again. case renewed switching ignition, counter delay time reset.
VBatt
U6049B
Thermal switch
8812
Terminal Figure Basic circuit
TELEFUNKEN Semiconductors Rev. 04-Feb-97
U6049B
Absolute Maximum Ratings
Parameters Operating voltage, static, Ambient temperature range Storage temperature range Junction temperature Symbol VBatt Tamb Tstg Value +125 +125 Unit
Thermal Resistance
Parameters Junction ambient DIP8 Symbol RthJA RthJA Maximum Unit
Electrical Characteristics
VBatt =13.5 Tamb 25°C, reference point ground, figure unless otherwise specified Parameters Operating voltage Test Conditions Without figure Pins Power-on reset Push buttons open
Symbol VBatt
supply Stabilized voltage Undervoltage threshold Supply current Internal Z-diode Relay output Saturation voltage
13.5
Unit
Leakage current Ilkg Output current Output pulse current Load dump pulse Internal Z-diode Oscillator input 0.001 kHz, table Internal discharge resistance Switching voltage Lower Upper Input current Switching times Debounce time Delay time Inputs Switching threshold V3,4,5 Internal Z-diode V3,4,5 Ignition input Pull-down resistance Switched VBatt Thermal switch Input current Programming input Input current
74752
cycles cycles
72704
TELEFUNKEN Semiconductors Rev. 04-Feb-97
U6049B
Table
Oscillator frequency, debounce time, delay time. dimensioning
Debounce time 6000 3000 2000 1500 1200 1000 Delay time Frequency 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 11000 12000 13000 14000 15000 16000 17000 18000 19000 20000 Debounce time 10.00 9.00 8.00 7.00 6.00 3.00 2.00 1.50 1.20 1.00 0.86 0.75 0.67 0.60 0.55 0.50 0.46 0.43 0.40 0.38 0.35 0.33 0.32 0.30 Delay time
Frequency
1229
4700 1000 1000 1000 1000 1000 1000 1000 1000 1000
TELEFUNKEN Semiconductors Rev. 04-Feb-97
U6049B
Package Information
Package DIP8
Dimensions
1.64 1.44 7.77 7.47
0.58 0.48 7.62 2.54 0.36
technical drawings according specifications 13021
Package
Dimensions
5.00 4.85 1.27 3.81 0.25 0.10 6.15 5.85
technical drawings according specifications 13034
TELEFUNKEN Semiconductors Rev. 04-Feb-97
U6049B
Ozone Depleting Substances Policy Statement
policy TEMIC TELEFUNKEN microelectronic GmbH Meet present future national international statutory requirements. Regularly continuously improve performance products, processes, distribution operating systems with respect their impact health safety employees public, well their impact environment. particular concern control eliminate releases those substances into atmosphere which known ozone depleting substances ODSs). Montreal Protocol 1987) London Amendments 1990) intend severely restrict ODSs forbid their within next years. Various national international initiatives pressing earlier these substances. TEMIC TELEFUNKEN microelectronic GmbH semiconductor division been able policy continuous improvements eliminate ODSs listed following documents. Annex list transitional substances Montreal Protocol London Amendments respectively Class ozone depleting substances Clean Amendments 1990 Environmental Protection Agency EPA) Council Decision 88/540/EEC 91/690/EEC Annex transitional substances respectively. TEMIC certify that semiconductors manufactured with ozone depleting substances contain such substances.
reserve right make changes improve technical design without further notice. Parameters vary different applications. operating parameters must validated each customer application customer. Should buyer TEMIC products unintended unauthorized application, buyer shall indemnify TEMIC against claims, costs, damages, expenses, arising directly indirectly, claim personal damage, injury death associated with such unintended unauthorized use. TEMIC TELEFUNKEN microelectronic GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany Telephone: 7131 2831, number: 7131 2423
TELEFUNKEN Semiconductors Rev. 04-Feb-97

Radiator Controlled Timer bipolar integrated circuit, U6049B, des

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