Driver with Thermal Monitoring driver includes non-inverted curre

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Driver with Thermal Monitoring driver includes non-inverted curre

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U6805B
Driver with Thermal Monitoring
driver includes non-inverted currentlimited output stages with open collector. Common thermal shutdown protects outputs against critical junction temperature. Each output sink current parallel output operation possible. digital inputs have Schmitttrigger function with pull-up resistors
Features
input comparators with Schmitt-trigger
characteristic
protection according human body model: Output stages:
Input clamping current capability
dedicated input stages
"2000
Integrated protection cells (EMC, ESD, Common shutdown junction-temperature monitor Reset with hysteresis voltage
Short-circuit protected
Load-dump protected crosstalk adjacent channels Jump start possible
Ordering Information
Extended Type Number U6805B-FP Package SO14 Remarks
Block Diagram
Thermal shutdown
Undervoltage detection VS=5 Figure
13334
TELEFUNKEN Semiconductors Rev. 02-Jul-97
U6805B
13335
Symbol
Function Output Output Output Ground Output Output Output Input Input Input Supply voltage, Input Input Input
Figure Pinning
Basic Circuitry
integrated circuit U6805B requires stabilized supply voltage comply with electrical characteristics. external buffer capacitor value recommended. integrated 14-V diode between ground protects supply pin.
Current Limitation Output Stages Overtemperature Shutdown
temperature-dependent current limitation range protects stages case short. Additionally, chip temperature monitored. Tchip 148_C, outputs disabled automatically enabled with hysteresis DTChip Refer driver U6807B temperature shutdown required.
input stages provided with integrated 250-kW pull-up resistor directly connected microcontroller. output stages open collectors each capable sinking Recommended external components: Pull-up resistor, Capacitor GND, figure
Transients Load Dump
integrated 28-V diode protects each output stage against transients load-dump (Schaffner pulses). With help external 1-kW resistor, output transistor capable handle corresponding current which flows during each these conditions. Apart from that, outputs short circuit overload protected.
Functional General state: level input stage activates corresponding output stage. state: internal pull-up resistor provides high level input comparator deactivates output stage. diodes between each input capable clamping currents without crosstalk adjacent input stages.
Low-Voltage Detection
When supply voltage switched power-on reset pulse generated internally which disables output stages until defined supply-voltage level reached. low-voltage detection provided with hysteresis Vhyst typically.
total clamping current should observed with respect power dissipation.
TELEFUNKEN Semiconductors Rev. 02-Jul-97
U6805B
Absolute Maximum Ratings
Parameters Supply voltage Ambient temperature range Storage temperature range Maximum junction temperature Symbol Tamb Tstg Value +125 +150 +150 Unit
Thermal Resistance
Parameters Junction ambient Symbol RthJA Value Unit
Electrical Characteristics
Tamb 27_C, reference point (GND), unless otherwise specified, figure Parameters Supply Supply voltage Supply current Low-voltage detection threshold Low-voltage hysteresis Temperature shutdown Temperature shutdown hysteresis Inputs Pins Pins ILeak VSat Ilimit 26.5 Vhyst Inputs open Inputs closed VTH(ON) VTH(OFF) Vhyst TChip Thyst 4.75 0.55 5.25 1.05 Test Conditions Pins Symbol Min. Typ. Max. Unit
diode protection voltage diode clamping current Pull-up resistor Switching threshold Hysteresis Outputs Integrated capacitor Leakage current Saturation voltage Current limitation Propagation delay
diode protection voltage
TELEFUNKEN Semiconductors Rev. 02-Jul-97
U6805B
Application Circuit
VS=5 Microcontroller VBatt Load
U6805B
13336
Figure Application schematic
Package Information
Package SO14
Dimensions
8.75
1.27 7.62 0.25 0.10 6.15 5.85
technical drawings according specifications 13035
TELEFUNKEN Semiconductors Rev. 02-Jul-97
U6805B
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. 02-Jul-97

Driver with Thermal Monitoring driver includes non-inverted curre

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