Hexdriver High Temperature Application Hexdriver includes inverte
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U6807B-FP
Hexdriver High Temperature Application
Hexdriver includes inverted current limited output stages with open collector. Each output sink parallel output operation possible. digital inputs have Schmitt trigger function with pull-up current sources
Features
input comparators with Schmitt trigger
characteristic
Output stages:
Short circuit protected with diode Load dump protected crosstalk adjacent channels Clamping current Jump start possible
Input clamping current capability Integrated protection cells (EMC, ESD,
dedicated input stages
voltage reset with hysteresis protection human body model:
"2000
Block Diagram
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Under voltage detection
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Figure
12407
TELEFUNKEN Semiconductors Rev. 22-Aug-96
U6807B-FP
8194
Figure Pinning
Symbol
Function Output Output Output Ground Output Output Output Input Input Input Supply voltage, Input Input Input
Basic Circuitry
Integrated circuit, U6805B, requires stabilized supply voltage comply with electrical characteristics. external buffer capacitor value recommended. integrated diode between ground protects supply pin.
Current Limitation Output Stages
temperature dependent current limitation between protects stages during short. appropriate heat sink assembly with RthJA and/or further reduction maximum ambient temperature recommended order avoid thermal overstress. Depending numbers output stages which short circuit condition these maximum ratings (with RthJA K/W): Tamb 80°C channels shorted simultaneously Tamb 65°C channels shorted simultaneously Refer hexdriver U6805B thermal shut down required.
input stages provided with integrated pull-up resistor directly connected microcontroller. output stages open collectors each capable sinking Recommended external components: Pull-up resistor, Capacitor GND, figure
Functional General state: level input stage activates corresponding output stage. state: internal pull-up resistor gives high level input comparator deactivates output stage. Z-diodes between each input capable clamping currents without crosstalk adjacent input stages.
Transients Load Dump
integrated Z-diode protects each output stage against transients load dump (Schaffner pulses). With help external resistor output transistor capable corresponding current which flows during each these conditions. Apart from that, outputs short circuit overload protected.
Voltage Detection
When supply voltage switched power reset pulse generated internally, which disables output stages until defined supply voltage level reached. voltage detection provided with hysteresis Vhyst typically. TELEFUNKEN Semiconductors Rev. 22-Aug-96
total clamping current should observed with respect power dissipation.
U6807B-FP
Absolute Maximum Ratings
Parameters Supply voltage Ambient temperature range Storage temperature range Maximum junction temperature Symbol Tamb Tstg Value +125 +150 +150 Unit
reduced output stages shorted sumultaneously (see "remark" page
Thermal Resistance
Parameters Junction ambient Symbol RthJA Value Unit
Electrical Characteristics
Tamb 25_C, reference point (GND), unless otherwise specified, figures Parameters Supply Supply voltage Supply current: Inputs open Inputs closed voltage detection threshold: voltage hysteresis Inputs Pins Vhyst Pins ILeak VSat Ilimit 26.5 VTH(ON) VTH(OFF) Vhyst 4.75 0.55 5.25 14.5 1.05 Test Conditions Pins Symbol Min. Typ. Max. Unit
Z-diode protection voltage Z-diode clamping current Pull-up resistor Switching threshold: Hysteresis Outputs Integrated capacitor Leakage current Saturation voltage Current limitation Propagation delay (470
Z-diode protection voltage
TELEFUNKEN Semiconductors Rev. 22-Aug-96
U6807B-FP
Application Circuit
Microcontroller
7590
VBatt Load
6807
Hexdriver
Figure Schematic Application
Dimensions
Package: SO14
9301
TELEFUNKEN Semiconductors Rev. 22-Aug-96
U6807B-FP
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. 22-Aug-96
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