U6807B Hex-Driver for High Temperature Application Description The hexdriver IC includes 6 non-inverted and current limited output stages with an open collector. Each output can sink 20 mA, parallel output operation is possible. The digital inputs have Schmitt-trigger function with pull-up current sources to 5 V. Features D Output stages: D Six input comparators with Schmitt-trigger characteristic " – Short circuit protected with diode D Input clamping current capability to 10 mA D Integrated protection cells (EMC, ESD, RF) – Load-dump protected @ 1 kW dedicated to all input stages – No crosstalk on adjacent channels D Low voltage reset with hysteresis D ESD protection to human body model: – Clamping current @ – 2 mA "2000 V (C = 100 pF, R = 1.5 kW) – Jump start possible Extended Type Number U6807B–FP Package SO14 Remarks Block Diagram VO1 VO2 VO3 VO4 VO5 VO6 1 2 5 7 3 6 4 VS 11 GND Under voltage detection VS=5 V 14 VI1 13 VI2 12 VI3 10 VI4 VS 9 VI5 8 VI6 13340 Figure 1. TELEFUNKEN Semiconductors Rev. A2, 28-Apr-97 1 (5) U6807B Pin Description VO1 1 14 VI1 VO2 2 13 VI2 VO3 3 12 VI3 GND 4 11 VS VO4 5 10 VI4 VO5 6 9 VI5 VO6 7 8 VI6 Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Symbol VO1 VO2 VO3 GND VO4 VO5 VO6 VI6 VI5 VI4 VS VI3 VI2 VI1 Function Output 1 Output 2 Output 3 Ground Output 4 Output 5 Output 6 Input 6 Input 5 Input 4 Supply voltage, 5 V Input 3 Input 2 Input 1 13335 Figure 2. Pinning Basic Circuitry The integrated circuit, U6805B, requires a stabilized supply voltage (VS = 5 V 5%) to comply with its electrical characteristics. An external buffer capacitor of C = 100 nF value is recommended. An integrated 14-V Z-diode between VS and ground protects the supply pin. " Current Limitation of the Output Stages A temperature dependent current limitation between 25 mA and 100 mA protects the stages during a short. All output stages are open collectors each capable of sinking 20 mA. Recommended external components: Pull–up resistor, R = 1 kW Capacitor to GND, C = 470 pF, see figure 3 An appropriate heat sink assembly with RthJA < 100 K/W and/or a further reduction of the maximum ambient temperature is recommended in order to avoid thermal overstress. Depending on the numbers of output stages which may be in short circuit condition these maximum ratings are (with RthJA < 120 K/W): Tamb max 80°C @ 2 channels shorted simultaneously Tamb max 65°C @ 3 channels shorted simultaneously Refer to hexdriver U6805B if thermal shut down is required. Functional Description Transients and Load-Dump General An integrated 28-V Z-diode protects each output stage against transients and load-dump (Schaffner pulses). With the help of external 1-kW resistor , the output transistor is capable of the corresponding current which flows during each of these conditions. Apart from that, outputs are short circuit and overload protected. All input stages are provided with an integrated 250 kW pull-up resistor and can be directly connected to a microcontroller. ON state: Low level at the input stage activates the corresponding output stage. OFF state: The internal pull-up resistor gives high level to the input comparator and deactivates the output stage. 7 V Z-diodes between each input pin and GND are capable of 10 mA clamping currents without crosstalk on adjacent input stages. " " A total clamping current of 30 mA should be observed with respect to the power dissipation. 2 (5) x x Low Voltage Detection When supply voltage is switched on, a power-on reset pulse is generated internally, which disables all output stages until a defined supply voltage level is reached. The low voltage detection is provided with a hysteresis of Vhyst = 0.5 V typically. TELEFUNKEN Semiconductors Rev. A2, 28-Apr-97 U6807B Absolute Maximum Ratings Parameters Symbol Value Unit VS 7.0 V Ambient temperature range * Tamb –40 to +125 Storage temperature range Tstg –50 to +150 Tj +150 _C _C _C Supply voltage Maximum junction temperature * To be reduced if 2 or 3 output stages are shorted sumultaneously (see “remark” on page 2). Thermal Resistance Parameters Junction ambient Symbol Value Unit RthJA 120 K/W Electrical Characteristics " VS = 5 V 5%, Tamb = 25_C, reference point pin 4 (GND), unless otherwise specified, see figures 1 and 3. Parameters Max. Unit 4.75 5.25 V IS IS 0.8 7 4.2 14.5 mA mA VTH(ON) VTH(OFF) 3.7 3.0 4.6 3.8 V V Vhyst 0.55 1.05 V Z-diode protection voltage VI 6.7 8.5 V Z-diode clamping current II Pull-up resistor RI Supply Test Conditions / Pins Supply current Inputs open Inputs closed to GND Low voltage detection threshold ON OFF Low voltage hysteresis VS Typ. Pins 8, 9, 10, 12, 13 and 14 Switching threshold OFF ON Hysteresis Outputs Min. Pin 11 Supply voltage Inputs Symbol 170 "10 250 305 mA kW VI VI 3.3 1.8 V V Vhyst 1.5 V Pins 1, 2, 3, 5, 6 and 7 Z-diode protection voltage VO 26.5 Integrated capacitor V 5 pF Leakage current ILeak 2.5 mA Saturation voltage (I = 20 mA) VSat 0.7 V Current limitation Ilimit Propagation delay (470 pF, 1 kW, 20 V) TELEFUNKEN Semiconductors Rev. A2, 28-Apr-97 td 25 mA 5 ms 3 (5) U6807B Application Circuit VS=5 V VBatt Load 100 nF VO1 VI2 VO2 VI3 Micro controller R VI1 VI4 VI5 R R R R R 6x 1kΩ VO3 U6807B VO4 Hexdriver IC VO5 VI6 VO6 C C C C C C 6x 470 pF 13341 Figure 3. Application schematic Package Information Package SO14 Dimensions in mm 5.2 4.8 8.75 3.7 1.4 0.25 0.10 0.4 1.27 6.15 5.85 7.62 14 0.2 3.8 8 technical drawings according to DIN specifications 13035 14 4 (5) 8 TELEFUNKEN Semiconductors Rev. A2, 28-Apr-97 U6807B 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 TELEFUNKEN Semiconductors Rev. A2, 28-Apr-97 5 (5)