L293DD
L293DD is PUSH-PULL FOUR CHANNEL DRIVER manufactured by STMicroelectronics.
- Part of the L293D comparator family.
- Part of the L293D comparator family.
DESCRIPTION
The Device is a monolithic integrated high voltage, high current four channel driver designed to accept standard DTL or TTL logic levels and drive inductive loads (such as relays solenoides, DC and stepping motors) and switching power transistors.
To simplify use as two bridges each pair of channels is equipped with an enable input. A separate supply input is provided for the logic, allowing operation at a lower voltage and internal clamp diodes are included.
This device is suitable for use in switching applications at frequencies up to 5 k Hz.
BLOCK DIAGRAM
SO(12+4+4)
Powerdip (12+2+2)
ORDERING NUMBERS:
L293D
The L293D is assembled in a 16 lead plastic packaage which has 4 center pins connected together and used for heatsinking
The L293DD is assembled in a 20 lead surface mount which has 8 center pins connected together and used for heatsinking.
July 2003
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L293D
- L293DD
ABSOLUTE MAXIMUM RATINGS
Symbol VS VSS Vi Ven Io Ptot
Tstg, Tj
Parameter Supply Voltage Logic Supply Voltage Input Voltage Enable Voltage Peak Output Current (100 µs non repetitive) Total Power Dissipation at Tpins = 90 °C Storage and Junction Temperature
PIN CONNECTIONS (Top view)
Value
Unit
- 40 to 150
°C
SO(12+4+4)
THERMAL DATA
Symbol Rth j-pins Rth j-amb Rth j-case
Decription Thermal Resistance Junction-pins Thermal Resistance junction-ambient Thermal Resistance Junction-case
(- ) With 6sq. cm on board heatsink.
Powerdip(12+2+2)
DIP max.
- max.
80 max.
SO 14 50 (- )
- Unit °C/W °C/W
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L293D
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