Build with L293D — Datasheet Specs & AI Design Help

00 — Overview

What the L293D does

The L293D and L293DD are four-channel push-pull drivers with internal clamp diodes designed to drive inductive loads like relays, solenoids, and DC motors. These devices accept standard DTL or TTL logic levels and feature enable inputs for simplified bridge configurations. Each channel supports 600 mA continuous output current with 1.2 A peak capability. The L293D operates in a 16-lead plastic package while the L293DD uses a 20-lead surface mount package. Both variants include overtemperature protection and handle supply voltages up to 36 V. They are suitable for switching applications at frequencies up to 5 kHz, making them ideal for controlling motor direction and speed in industrial and consumer electronics.

Next step

Start building with L293D → Every number above is cited straight from the datasheet — ask what they mean for your design, and the assistant answers from the same source documents.

01 — Key specifications

Datasheet parameters

Datasheet parameters for L293D
Parameter	Min	Typ	Max	Conditions	Source
quiescent current	—	2 mA	6 mA	Vi = L; IO = 0; Ven = H; is(pin 10); THERMAL DATA	ST datasheet, p. 3 — THERMAL DATA
output current	—	600 mA	—		ST datasheet, p. 1
supply voltage range	—	—	36 V	vs(pin 10); THERMAL DATA	ST datasheet, p. 3 — THERMAL DATA
operating temperature (abs max)	-40 °C	—	150 °C		ST datasheet, p. 2 — ABSOLUTE MAXIMUM RATINGS
power dissipation (abs max)	—	—	4 W	ptot; ABSOLUTE MAXIMUM RATINGS	ST datasheet, p. 2 — ABSOLUTE MAXIMUM RATINGS
rise time	—	250 ns	—	0.1 to 0.9 VO; tr(*); THERMAL DATA	ST datasheet, p. 3 — THERMAL DATA
fall time	—	250 ns	—	0.9 to 0.1 VO; tf(*); THERMAL DATA	ST datasheet, p. 3 — THERMAL DATA
driver count	—	4	—		ST datasheet, p. 1

02 — Alternatives

Closest matches to L293D

DRV8803 2.5× higher output current, 1.7× higher supply voltage range, 1.4× lower fall time

DRV8803DW 2.5× higher output current, 1.7× higher supply voltage range, 1.4× lower fall time

DRV8803PWPR 3.3× higher output current, 1.7× higher supply voltage range, 1.4× lower fall time

L6201 1.8× higher supply voltage range, 1.2× lower fall time, 1.2× lower rise time

DRV8833 3.0× lower supply voltage range, 2.5× higher output current, 2.4× lower operating temperature

DRV8844 2.8× lower fall time, 2.8× lower rise time, 2.0× lower quiescent current

A4988 3.3× higher output current, 2.0× higher quiescent current, 1.7× lower operating temperature

TB67S109AFNG 10.1× lower supply voltage range, 6.7× higher output current, 3.1× lower rise time

03 — FAQ

Frequently asked questions

What is the driver count for the L293D?

The driver count is 4.

What is the fall time (0.9 to 0.1 VO) under thermal data conditions?

The fall time is 250 ns.

What is the maximum operating temperature of the L293D?

The maximum operating temperature is 150 °C.

What is the output current of the L293D?

The output current is 600 mA.

What is the absolute maximum total power dissipation (ptot) for the L293D?

The absolute maximum total power dissipation (ptot) is 4 W.

What is the quiescent current when Vi = L, IO = 0, Ven = H, and measuring pin 10 under THERMAL DATA conditions?

The quiescent current is 2 mA.

What is the rise time (tr) from 0.1 to 0.9 VO under thermal data conditions?

The rise time is 250 ns.

What is the supply voltage range for the L293D at vs(pin 10) under THERMAL DATA conditions?

The supply voltage range is 36 V.