Hex-Driver with Thermal Monitoring hex-driver includes non-invert
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U6805B
Hex-Driver with Thermal Monitoring
hex-driver includes non-inverted current limited output stages with open collector. Common thermal shutdown protects outputs against critical junction temperature. 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
protection human body model: Output stages:
Input clamping current capability
dedicated input stages
"2000
Integrated protection cells (EMC, ESD, Common shutdown junction temperature monitor voltage reset with hysteresis
Short circuit protected with diode Load-dump protected Clamping current Jump start possible
crosstalk adjacent channels
Ordering Information
Extended Type Number U6805B-FP Package SO14 Remarks
Block Diagram
Thermal shutdown
Under voltage detection VS=5 Figure
13334
TELEFUNKEN Semiconductors Rev. 10-Feb-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 Z-diode between ground protects supply pin.
Current Limitation Output Stages Overtemperature Shut-down
temperature dependent current limitation between protects stages during short. Additionally chip temperature monitored. Tchip 148_C outputs disabled automatically enabled with hysteresis DTChip Refer hexdriver U6807B temperature 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
Transients Load-Dump
integrated 28-V Z-diode protects each output stage against transients load-dump (Schaffner pulses). With help external 1-kW resistor output transistor capable 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 gives high level input comparator deactivates output stage. Z-diodes between each input capable clamping currents without crosstalk adjacent input stages.
Voltage Detection
When supply voltage switched power-on reset pulse generated internally, which disables output stages until defined supply voltage level reached. voltage detection provided with hysteresis Vhyst typically.
total clamping current should observed with respect power dissipation.
TELEFUNKEN Semiconductors Rev. 10-Feb-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 25_C, reference point (GND), unless otherwise specified, figure Parameters Supply Supply voltage Supply current: Inputs open Inputs closed voltage detection threshold: voltage hysteresis Temperature shut down Temperature shut-down hysteresis Inputs Pins Vhyst Pins ILeak VSat 26.5 VTH(ON) VTH(OFF) Vhyst TChip Thyst 4.75 0.55 5.25 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
Z-diode protection voltage
TELEFUNKEN Semiconductors Rev. 10-Feb-97
U6805B
Parameters Current limitation Propagation delay (470 Test Conditions Pins Symbol Ilimit Min. Typ. Max. Unit
Application Circuit
VS=5 Micro controller
13336
VBatt Load
U6805B
Hexdriver
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. 10-Feb-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. 10-Feb-97
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