L293B ,PUSH-PULL FOUR CHANNEL DRIVERSL293BL293EPUSH-PULL FOUR CHANNEL DRIVERS. OUTPUT CURRENT 1A PER CHANNEL. PEAK OUTPUT CURRENT 2A PER ..
L293C ,PUSH-BRIDGE DRIVER PUSH-PULL FOUR CHANNEL/DUALL293CPUSH-PULL FOUR CHANNEL/DUALH-BRIDGE DRIVERPRELIMINARY DATA. 600 mA OUTPUT CURRENT CAPABILITYPE ..
L293D ,PUSH-PULL FOUR CHANNEL DRIVER WITH DIODESL293DL293DDPUSH-PULL FOUR CHANNEL DRIVER WITH DIODES600mA OUTPUT CURRENT CAPABILITYPER CHANNEL 1.2A ..
L293DD ,PUSH-PULL FOUR CHANNEL DRIVER WITH DIODESBLOCK DIAGRAMJune 1996 1/7L293D - L293DD
L293DD013TR ,PUSH-PULL FOUR CHANNEL DRIVER WITH DIODESL293DL293DD®PUSH-PULL FOUR CHANNEL DRIVER WITH DIODES600mA OUTPUT CURRENT CAPABILITYPER CHANNEL 1.2 ..
L293DNE ,Quadruple Half-H DriversFeatures 3 DescriptionThe L293 and L293D devices are quadruple high-1• Wide Supply-Voltage Range: 4 ..
LB11867FV-TLM-E , For Fan Motor Variable Speed Single-phase Full-wave Pre-driver
LB11867FV-TLM-E , For Fan Motor Variable Speed Single-phase Full-wave Pre-driver
LB11870 ,Three-Phase Brushless Motor Driver for Polygonal Mirror MotorsAbsolute Maximum Ratings at Ta = 25°CParameter Symbol Conditions Ratings UnitSupply voltage V max 3 ..
LB11870 ,Three-Phase Brushless Motor Driver for Polygonal Mirror MotorsOrdering number : ENN7256Monlithic Digital ICLB11870Three-Phase Brushless Motor Driver for Polygona ..
LB11880 ,Three-Phase Sensorless Motor Driver with Loading Motor DriverOrdering number : ENN6470Monolithic Digital ICLB11880Three-Phase Sensorless Motor Driver with Loadi ..
LB11923V ,Brushless Motor Drivers (3-phase drive): PPC and printer paper feed and drum motor driverAbsolute Maximum Ratings at Ta = 25°CParameter Symbol Conditions Ratings UnitMaximum supply voltage ..
L293B-L293E
PUSH-PULL FOUR CHANNEL DRIVERS
L293B
L293 EApril 1993
PUSH-PULL FOUR CHANNEL DRIVERS OUTPUT CURRENT 1A PER CHANNEL. PEAK OUTPUT CURRENT 2A PER CHANNEL
(non repetitive). INHIBIT FACILITY. HIGH NOISE IMMUNITY. SEPARATE LOGIC SUPPLY. OVERTEMPERATURE PROTECTION
DESCRIPTIONThe L293B and L293E are quad push-pull drivers
capable of delivering output currents to 1A per chan-
nel. Each channel is controlled by a TTL-compatible
logic input and each pair of drivers (a full bridge) is
equipped with an inhibit input which turns off all four
transistors. A separate supply input is provided for
the logic so that it may be run off a lower voltage to
reduce dissipation.
Additionally, the L293E has external connection of
sensing resistors, for switchmode control.
The L293B and L293E are package in 16 and 20-pin
plastic DIPs respectively ; both use the four center
pins to conduct heat to the printed circuit board.
PIN CONNECTIONS1/12
BLOCK DIAGRAMS
L293B - L293E2/12
SCHEMATIC DIAGRAM(*) In the L293 these points are not externally available. They are internally connected to the ground (substrate).
O Pins of L293 () Pins of L293E.
L293B - L293E3/12
THERMAL DATA
ELECTRICAL CHARACTERISTICSFor each channel, VS = 24V, VSS = 5V, Tamb = 25o C, unless otherwise specified See figure 1
** Referred to L293E
ABSOLUTE MAXIMUM RATINGS
TRUTH TABLE(*) High output impedance
(**) Relative to the considerate channel
L293B - L293E4/12
Figure 1 : Switching Timers
Figure 3 : Source Saturation Voltage versus
Ambient Temperature
Figure 5 : Quiescent Logic Supply Current
versus Logic Supply Voltage
Figure 2 : Saturation voltage versus Output
Current
Figure 4 : Sink Saturation Voltage versus
Ambient Temperature
L293B - L293E5/12
Figure 6 : Output Voltage versus
Input Voltage
Figure 7 : Output Voltage versus
Inhibit Voltage
APPLICATION INFORMATION
Figure 8 : DC Motor Controls
(with connection to ground and
to the supply voltage)
Figure 9 : Bidirectional DC Motor Control
L = Low H = High X = Don’t Care
L = Low H = High X = Don’t Care
L293B - L293E6/12
