U2044B-FP

U2044B TEMIC | Alldatasheet

Document overview

• Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
• PDF pages: 6

Technical content

Features

/C0068Temperature and supply voltage compensated flashing frequency /C0068Frequency doubling indicates lamp outage /C0068Two relay driver outputs with high current-carrying capacity and low saturation voltage /C0068Minimum lamp load for flasher operation: /C01191 W /C0068Very low susceptibility to EMI /C0068Protection according to ISO/TR7637/1 level 4 /C0068Extremly low current consumption < 10 /C0109A (@switches open) /C0068Reverse polarity protection /C0068Three control inputs: left, right and hazard warning

Ordering Information

Extended Type Number Package Remarks U2044B DIP14 U2044B-FP SO14 Pin Description Pin Symbol Function

1 OSC Oscillator

2 SIL Start input left

3 SIR Start input right

4 SIHW Start input hazard warning

5 V S V S

6 CR1 Control input relay 1

7 CR2 Control input relay 2

8 LD Lamp failure detection

9 V S V S

10 GND IC ground

11 OR1 Output relay 1

12 V S V S

13 OR2 Output relay 2

14 OSC Oscillator

Figure 1. Pinning

Figure 2. Application circuit and R4 are protection resistors for the input stage. is a voltage drop of V /C0091 6.9 V at the pull-down resistor. switch is in ON-position as shown in figure 2.

Rev. A1, 25-Feb-97 3 (6) a low-side type. The pull-up resistor R10 provides the off- state. R3 is a protection resistor for the input stage. Hazard warning can be activated independent of the igni- tion switch position. Pin 5, Supply voltage sense This pin supplies the lamp outage comparator at Pin 8 and is externally connected to the battery (Kl 30). Pin 6 and 7, Control input relay 1 and 2 The feedback detects the bright phase and the dark phase and enables the oscillator. Pin 8, Lamp outage detection The lamp current is monitored via an external shunt resistor, R Shunt and an internal comparator K1 with its reference voltage of typ. 81 mV (VS = 12 V). The outage of one lamp out of two lamps is detected according to the following calculation: Nominal current of 1 lamp: 21 W / (V S = 12 V): Ilamp = 1.75 A Nominal current of 2 lamps: 2 x 21 W / (VS = 12 V): Ilamp = 3.5 A. The detection threshold is recommended to be set in the middle of the current range: I outage /C0091 2.7 A Thus the shunt resistor is calculated as: R Shunt = VT (K1) / Ioutage R Shunt = 81 mV/2.7 A = 30 m/C0087. Comparator K1‘s reference voltage is matched to the characteristics of filament lamps (see “control signal threshold” in the data part). The combination of shunt resistor and resistance of wire harness prevents Pin 8 from a too high voltage in the case of shortet lamps. Pin 9, Supply voltage This pin supplies the oscillator, the comparators and the logic parts of the IC. Pin 10, GND The integrated circuit is protected against transients according to ISO–TR 7637–3 level 3 via resistor R 2 to ground (–31). An integrated protection circuit together with external resistors R 2, R 3, R 4, R 6, R 8 and R9 limits the current pulses in the IC. Against reversed battery the IC is also protected . Pin 11 and 13, Control output relay 1 and 2 The relay control outputs are high-side driver with a low saturation voltage and capable to drive a typical automotive relay with a coil resistance of 60 /C0087/C0046 Pin 12, Supply voltage power This pin supplies the relay drivers connected directly to the battery (Kl 30). It is internally clamped by a 27-V Z-diode. Absolute Maximum Ratings Reference point ground (terminal 31), with external circuitry. Parameters Symbol Value Unit Supply voltage, 1 min Pins 5, 9, 12 V S 24 V Junction temperature Tj 150 °C Storage temperature range Tstg –55 to +150 °C Ambient temperature range Tamb –40 to +100 °C Thermal Resistance Parameters Symbol Value Unit Junction ambient DIP14 SO14 R thJA R thJA 120 K/W K/W

Rev. A1, 25-Feb-97 4 (6)

Electrical Characteristics

Typical values under normal operation in application circuit figure 1, VS (+30) = 12 V . Reference point ground (–31), Tamb = 25°C, unless otherwise specified. Parameters Test Conditions / Pins Symbol Min. Typ. Max. Unit Supply voltage range Pins 5, 9, 12V S 8 18 V Supply current, switches open Pins 5, 9, 12IS 10 /C0109A Output current for relay driver Pins 11, 13IO 300 mA Saturation voltage R L = 82 /C0087 Pins 11, 13 V S = 8 V V S = 12 V V O 1.0 1.2 V V Relay coil resistance R L 60 /C0087 Relay output, reverse current Pins 11, 13IO 0.1 mA Start delay (first bright phase) tON 10 ms Control signal threshold V S = 9 V Pin 8 V S = 13.5 V V S = 16 V V S 70.6 85.0 93.0 mV mV mV Tolerance of control signal threshold V S = 9 to 16 V , Pin 8 Tamb = –40 to +100°C –6 +6 % Temperature coefficient of control signal threshold V S = 13.5 V Pin 8 TK 10 /C0109V/K Clamping voltage Tamb = –40 to +100°C V 12 25.0 27.5 30.0 V Relay output overvoltage detection (relay disabled) Tamb = –40 to +100°C V 12 18 20 22 V Tolerances V S = 9 to 18 V , Tamb = –40 to +100°C Parameters Test Conditions / Pins Symbol Min. Typ. Max. Unit Frequency determining resistor R 1 6.8 510 k/C0087 Frequency determining capacitor C 1 47 /C0109F Frequency tolerance (normal flashing basic fre- quency f 1 not including the tolerance of the external components R 1 and C1) /C0068f1 –5 +5 % Bright period (basic fre- quency f1) /C0068F1 47 53 % Bright period (control frequency f2) /C0068f2 37 45 % Frequency increase (lamp failure) f2 2.15 /C0032 f1 2.3 /C0032 f1 Hz Lamp load PL 1 W

Rev. A1, 25-Feb-97 5 (6)

Package Information

4.8 max Dimensions in mm 20.0 max 1.64 1.44 3.30.5 min 0.58 0.48 2.54 15.24 14 8 7.77 7.47 6.4 max 0.36 max 9.8 8.2 13035 technical drawings according to DIN specifications Dimensions in mm 0.25 0.10 8.75 0.4 1.27 7.62 1.4 5.2 4.8 3.7 3.8 6.15 5.85 0.2 14 8 14 8

Rev. A1, 25-Feb-97 6 (6) 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