SOLENOID CONTROLLER SWITCH MODE CURRENT REGULATION COMPATIBLE LOG

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SOLENOID CONTROLLER SWITCH MODE CURRENT REGULATION COMPATIBLE LOG

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L6504
SOLENOID CONTROLLER
SWITCH MODE CURRENT REGULATION COMPATIBLE LOGIC INPUTS DRIVES EXTERNAL POWER TRANSISTORS VERY PRECISE ON-CHIP REFERENCE ANALOG CURRENT CONTROL INPUT ADJUSTABLE CURRENT RISE FALL TIME CONTROL INDEPENDENT SOLENOID SUPPLY VOLTAGE UNDERVOLTAGE LOCKOUT
DESCRIPTION Designed with external powertransistor, L6504 drives hammer solenoid daisywheel printers typewrites. device controlled three logic inputs features switchmode regulation load current. feature device that rise fall time load current external components. Additionally analog input allows load current externalDC voltage. undervoltagelockout circuit guarantees output state switch phase.
DIP14 (Plastic Package) (0.25)
ORDERING NUMBER L6504
CONNECTION (top view)
April 1993
L6504
FUNCTION
Name CONTROL ENABLE ENABLE REFERENCE SENSING SUPPLY VOLTAGE REFERENCE DRIVING OUTPUT DRIVING OUTPUT GROUND Function Compatible Control Input. level activates output, driving load. Internal Pull-up Resistor. Compatible Enable Input. level disables output stage. Compatible Enable Input. high level disables output stage. value this resistor sets slope trailing edge load current. value this resistor sets slope leading edge load current. Output Internal Reference Voltage. value this capacitor duration power transistor switch time. value this capacitor sets slope leading trailing edge load current. Connection Load Current Sense Resistor. Value sets maximum load current Vref/Rs. Supply Voltage Input. Input External Reference Voltage Control Load Current DC-level. Output Control External PNP-transistor Fast Current Discharge. Output Basecharge Discharge External Power Transistor. Ground
Value between open).
BLOCK DIAGRAM
L6504
ABSOLUTE MAXIMUM RATINGS
Symbol Tstg Supply Voltage Enable Input Voltage Range Control Input Voltage Range Sense Voltage Reference Output Current External Reference Voltage Storage Temperature Junction Temperature Operating Temperature Parameter Test Conditions -0.3 -0.3 -0.3 Unit
THERMAL DATA
Symbol j-amb Parameter Thermal Resistance Junction-ambient Max. Test Conditions Unit
ELECTRICAL CHARACTERISTICS
Symbol Vsth Vref Iref VRIN Vsats Vsats VV-I Parameter Operating Supply Voltage Supply Voltage Threshold Output Switch-off Quiescent Current Control Voltage Control Voltage Control Input Current Control Input Current Enable Voltage Enable Voltage Input Current Input Current Driving Voltage Driving Current Sense Voltage Reference Voltage Reference Current Reference Input Charge Current Discharge Current Source Current Source Saturation Voltage Sink Saturation Voltage VI-Converter Voltage Recirculation Time Load Current Current Sense Delay Time (Pin 20k, Pin1L (Pin 20k, Pin1H ISOURCE 0.5mA ISINK 10k< 200k, 1.5ns, 1.26 1.32 32.5 LOW, HIGH Pin1 Highstate State High State State High State State High State State High State R13, State 1.28 1.33 1.38 -0.6 Test Conditions Min. 2.96 Typ. Max. 4.45 Unit
L6504
Figure Timing Diagram Start Phase
APPLICATION INFORMATION Figure Free Running Load Current Leading Trailing Edge Figure
L6504
Figure Slew Rate Loading Edge Controlled Figure
Figure Slew Rate Leading Trailing Edge Controlled
Figure
Figure Free Running Leading Edge Fast Current Slope Trailing Edge
Figure
L6504
DIP14 PACKAGE MECHANICAL DATA
DIM. MIN. 1.27 2.54 0.050 2.54 15.24 0.130 0.100 0.51 1.39 0.25 0.335 0.100 0.600 0.280 0.201 1.65 TYP. MAX. MIN. 0.020 0.055 0.020 0.010 0.787 0.065 inch TYP. MAX.
L6504
Information furnished believed accurate reliable. However, SGS-THOMSON Microelectronics assumes responsibility consequences such information infringement patents other rights third parties which result from use. license granted implication otherwise under patent patent rights SGS-THOMSON Microelectronics. Specifications mentioned this publication subject change without notice. This publication supersedes replaces information previously supplied. SGS-THOMSON Microelectronics products authorized critical components life support devices systems without express written approval SGS-THOMSON Microelectronics. 1994 SGS-THOMSON Microelectronics Rights Reserved SGS-THOMSON Microelectronics GROUP COMPANIES Australia Brazil France Germany Hong Kong Italy Japan Korea Malaysia Malta Morocco Netherlands Singapore Spain Sweden Switzerland Taiwan Thaliand United Kingdom U.S.A.

SOLENOID CONTROLLER SWITCH MODE CURRENT REGULATION COMPATIBLE LOG

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