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L293N Datasheet(PDF) 9 Page - Texas Instruments |
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L293N Datasheet(HTML) 9 Page - Texas Instruments |
9 / 21 page 24 V 5 V 10 k Ω VCC1 VCC2 Control A Control B 4, 5, 12, 13 GND Thermal Shutdown Motor 16 8 3 6 11 14 4Y 3Y 2Y 1Y 1,2EN 1A 2A 3,4EN 3A 4A 15 10 9 7 2 1 L293, L293D www.ti.com SLRS008D – SEPTEMBER 1986 – REVISED JANUARY 2016 9 Application and Implementation NOTE Information in the following applications sections is not part of the TI component specification, and TI does not warrant its accuracy or completeness. TI’s customers are responsible for determining suitability of components for their purposes. Customers should validate and test their design implementation to confirm system functionality. 9.1 Application Information A typical application for the L293 device is driving a two-phase motor. Below is an example schematic displaying how to properly connect a two-phase motor to the L293 device. Provide a 5-V supply to VCC1 and valid logic input levels to data and enable inputs. VCC2 must be connected to a power supply capable of supplying the needed current and voltage demand for the loads connected to the outputs. 9.2 Typical Application Figure 6. Two-Phase Motor Driver (L293) 9.2.1 Design Requirements The design techniques in the application above as well as the applications below should fall within the following design requirements. 1. VCC1 should fall within the limits described in the Recommended Operating Conditions. 2. VCC2 should fall within the limits described in the Recommended Operating Conditions. 3. The current per channel should not exceed 1 A for the L293 (600mA for the L293D). 9.2.2 Detailed Design Procedure When designing with the L293 or L293D, careful consideration should be made to ensure the device does not exceed the operating temperature of the device. Proper heatsinking will allow for operation over a larger range of current per channel. Refer to the Power Supply Recommendations as well as the Layout Example. Copyright © 1986–2016, Texas Instruments Incorporated Submit Documentation Feedback 9 Product Folder Links: L293 L293D |
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