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L6243

Features: ·12V/5V OPERATION·PARKING FUNCTION FOR HARD DISK HEAD ACTUATOR·OUTPUT CURRENT UP TO 2A DC, 2.5A PEAK·LOW SATURATION VOLTAGE·LOGIC AND POWER SUPPLY MONITOR·LINEAR CONTROL·THERMAL PROTECTION·ENABLE FUNCTION·CURRENT SENSE RESISTOR CONNECTIONSPinoutSpecifications Symbol Parameter ...

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SeekIC No. : 004389256 Detail

L6243: Features: ·12V/5V OPERATION·PARKING FUNCTION FOR HARD DISK HEAD ACTUATOR·OUTPUT CURRENT UP TO 2A DC, 2.5A PEAK·LOW SATURATION VOLTAGE·LOGIC AND POWER SUPPLY MONITOR·LINEAR CONTROL·THERMAL PROTECTION...

L6243 Data Sheet

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Part Number:
L6243
Supply Ability:
5000

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  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2025/1/11

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Product Details

Description



Features:

·12V/5V OPERATION
·PARKING FUNCTION FOR HARD DISK HEAD ACTUATOR
·OUTPUT CURRENT UP TO 2A DC, 2.5A PEAK
·LOW SATURATION VOLTAGE
·LOGIC AND POWER SUPPLY MONITOR
·LINEAR CONTROL
·THERMAL PROTECTION
·ENABLE FUNCTION
·CURRENT SENSE RESISTOR CONNECTIONS


Pinout

Connection Diagram


Specifications

Symbol
 Parameter
Value
Unit
VS
 Supply Voltage
18
V
VIN
 Input Voltage
0.3V to VS
VID
 Differential Input Voltage
±VS
IO
 DC Output Current
2
A
IP
 Peak Output Current (non repetitive)
2.5
A
Ptot
 Total Power Dissipation (Tamb = 70°C) for L6243
for L6243D
2
1.2
W
W
Tstg
 Storage and Junction Temperature
-55 to +150
°C



Description

The L6243/D is a Bipolar IC developed for use in Hard Disk Head Actuator positioning applications. The Power Op-Amp Output Bridge, Differential Amplifier, and Error Amplifier, are controlled by TTL/CMOS, input compatible, Digital Logic, and an Analog Current Control Voltage. A simple RC compensation network, tied to the output of the Error Amp, will configure the system to work as a Transconductance Amplifier to drive a Voice Coil Motor in LinearMode.

Additional L6243 features include Power On Reset Delay, Enable and Park, as well as a general purpose Operational Amplifier. A logic low at the Park input activates the parking function. Holding the Enable input low will disable the device by forcing the outputs into a tristate mode. Power Fail Monitors for the logic and power supplies initiate an automatic parking sequence during a power failure. A resistor programmed parking voltage enables a constant velocity head retract.




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