L293D
Push-Pull Four Channel Driver with DiodesThe L293D is a push-pull four channel driver with diodes from STMicroelectronics. View the full L293D datasheet below including key specifications, absolute maximum ratings.
Official L293D datasheet (PDF) — the source this page was extracted from.
L293D Key Specifications
| Parameter | Value |
|---|---|
| Fall Time | 250ns typ |
| Rise Time | 250ns typ |
| Protection | Overtemperature protection, internal clamp diodes |
| Turn-On Delay | 750ns typ |
| Turn-Off Delay | 200ns typ |
| Input Low Voltage | -0.3V to 1.5V |
| Input High Voltage | 2.3V to VSS (max 7V) |
| Supply Voltage (VS) | VSS to 36V |
| Switching Frequency | up to 5kHz |
| Logic Supply Voltage (VSS) | 4.5V to 36V |
| Output Current Per Channel | 600mA |
| Clamp Diode Forward Voltage | 1.3V typ |
| Storage And Junction Temperature | -40C to 150C |
| Total Power Dissipation (Tpins=90C) | 4W |
| Thermal Resistance Junction-Case (DIP) | 14C/W |
| Sink Output Saturation Voltage (IO=+0.6A) | 1.2V typ, 1.8V max |
| Thermal Resistance Junction-Ambient (DIP) | 80C/W |
| Peak Output Current (Non-Repetitive, 100us) | 1.2A |
| Source Output Saturation Voltage (IO=-0.6A) | 1.4V typ, 1.8V max |
L293D Overview
Part: L293D L293DD, STMicroelectronics
Type: Four Channel Push-Pull Driver
Description: The L293D/L293DD is a high voltage, high current four channel driver designed to accept DTL/TTL logic levels and drive inductive loads, offering 600mA output current capability per channel, 1.2A peak output current, and internal clamp diodes, suitable for switching applications up to 5 kHz.
Operating Conditions:
- Supply voltage: 4.5–36 V
- Operating temperature: -40 to 150 °C (Junction Temperature)
- Max switching frequency: 5 kHz
Absolute Maximum Ratings:
- Max supply voltage: 36 V (VS, VSS)
- Max continuous current: 600 mA (per channel)
- Max peak output current: 1.2 A (100 ms non repetitive)
- Max junction/storage temperature: -40 to 150 °C
Key Specs:
- Logic Supply Voltage (VSS): 4.5 V to 36 V
- Input Low Voltage (VIL): -0.3 V to 1.5 V
- Input High Voltage (VIH): 2.3 V to VSS (or 7 V if VSS > 7V)
- Source Output Saturation Voltage (VCE(sat)H): 1.8 V (max) at IO = -0.6 A, VS = 24 V, VSS = 5 V, Tamb = 25 °C
- Sink Output Saturation Voltage (VCE(sat)L): 1.8 V (max) at IO = +0.6 A, VS = 24 V, VSS = 5 V, Tamb = 25 °C
- Clamp Diode Forward Voltage (VF): 1.3 V (typ) at IO = 600nA
- Turn-on Delay (ton): 750 ns (typ)
- Total Quiescent Supply Current (IS): 24 mA (max) at Vi=H, IO=0, Ven=H, VS = 24 V, VSS = 5 V, Tamb = 25 °C
Features:
- 600mA OUTPUT CURRENT CAPABILITY PER CHANNEL
- 1.2A PEAK OUTPUT CURRENT (non repetitive) PER CHANNEL
- ENABLE FACILITY
- OVERTEMPERATURE PROTECTION
- LOGICAL "0" INPUT VOLTAGE UP TO 1.5 V (HIGH NOISE IMMUNITY)
- INTERNAL CLAMP DIODES
Applications:
- Relays
- Solenoids
- DC motors
- Stepping motors
- Switching power transistors
Package:
- 16 lead plastic package (L293D)
- 20 lead surface mount (L293DD)
L293D Absolute Maximum Ratings
| Symbol | Parameter | Value | Unit |
|---|---|---|---|
| V S | Supply Voltage | 36 | V |
| V SS | Logic Supply Voltage | 36 | V |
| V i | Input Voltage | 7 | V |
| V en | Enable Voltage | 7 | V |
| I o | Peak Output Current (100 m s non repetitive) | 1.2 | A |
| P tot | Total Power Dissipation at T pins = 90 C | 4 | W |
| T stg , T j | Storage and Junction Temperature | - 40 to 150 | C |
L293D Thermal Information
| Symbol | Decription | DIP | SO | Unit |
|---|---|---|---|---|
| R th j-pins | Thermal Resistance Junction-pins | - | 14 | C/W |
| R th j-amb | Thermal Resistance junction-ambient | 80 | 50 (*) | C/W |
| R th j-case | Thermal Resistance Junction-case | 14 | - |
ELECTRICAL CHARACTERISTICS (for each channel, VS = 24 V, VSS = 5 V, Tamb = 25 C, unless otherwise specified)
| Symbol | Parameter | Test Conditions | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|---|
| V S | Supply Voltage (pin 10) | V SS | 36 | V | ||
| V SS | Logic Supply Voltage (pin 20) | 4.5 | 36 | V | ||
| I S | Total Quiescent Supply Current (pin 10) | V i = L ; I O = 0 ; V en = H | 2 | 6 | mA | |
| I S | Total Quiescent Supply Current (pin 10) | V i = H ; I O = 0 ; V en = H | 16 | 24 | mA | |
| I S | Total Quiescent Supply Current (pin 10) | V en = L | 4 | mA | ||
| I SS | Total Quiescent Logic Supply Current (pin 20) | V i = L ; I O = 0 ; V en = H | 44 | 60 | mA | |
| I SS | Total Quiescent Logic Supply Current (pin 20) | V i = H ; I O = 0 ; V en = H | 16 | 22 | mA | |
| I SS | Total Quiescent Logic Supply Current (pin 20) | V en = L | 16 | 24 | mA | |
| V IL | Input Low Voltage (pin 2, 9, 12, 19) | - 0.3 | 1.5 | V | ||
| V IH | Input High Voltage (pin 2, 9, 12, 19) | V SS £ 7 V | 2.3 | V SS | V | |
| V IH | Input High Voltage (pin 2, 9, 12, 19) | V SS > 7 V | 2.3 | 7 | V | |
| I IL | Low Voltage Input Current (pin 2, 9, 12, 19) | V IL = 1.5 V | - 10 | m A | ||
| I IH | High Voltage Input Current (pin 2, 9, 12, 19) | 2.3 V £ V IH £ V SS - 0.6 V | 30 | 100 | m A | |
| V en L | Enable Low Voltage (pin 1, 11) | - 0.3 | 1.5 | V | ||
| V en H | Enable High Voltage (pin 1, 11) | V SS £ 7 V | 2.3 | V SS | V | |
| V en H | Enable High Voltage (pin 1, 11) | V SS > 7 V | 2.3 | 7 | V | |
| I en L | Low Voltage Enable Current (pin 1, 11) | V en L = 1.5 V | - 30 | - 100 | m A | |
| I en H | High Voltage Enable Current (pin 1, 11) | 2.3 V £ V en H £ V SS - 0.6 V | - 10 | m A | ||
| V CE(sat)H | Source Output Saturation Voltage (pins 3, 8, 13, 18) | I O = - 0.6 A | 1.4 | 1.8 | V | |
| V CE(sat)L | Sink Output Saturation Voltage (pins 3, 8, 13, 18) | I O = + 0.6 A | 1.2 | 1.8 | V | |
| V F | Clamp Diode Forward Voltage | I O = 600nA | 1.3 | V | ||
| t r | Rise Time (*) | 0.1 to 0.9 V O | 250 | ns | ||
| t f | Fall Time (*) | 0.9 to 0.1 V O | 250 | ns | ||
| t on | Turn-on Delay (*) | 0.5 V i to 0.5 V O | 750 | ns | ||
| t off | Turn-off Delay (*) | 0.5 V i to 0.5 V O | 200 | ns |
(*) See fig. 1.
ELECTRICAL CHARACTERISTICS (for each channel, VS = 24 V, VSS = 5 V, Tamb = 25 C, unless otherwise specified)
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All Diodes datasheetsAll STMicroelectronics datasheets (808)
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