The L6204 is a dual full bridge driver for motor control applications realized in BCD technology which combines isolated DMOS power transistors with CMOS and Bipolar circuits on the same chip. By using mixed technology it has been possible to optimize the logic circuitry and the power stage to achieve the best possible performance. The logic inputs are TTL/CMOS compatible. Both channels are controlled by a separate Enable. Each bridge has a sense resistor to control the current level. The L6204 is mounted in an 20-lead Powerdip and SO 24+2+2 packages and the four center pins are used to conduct heat to the PCB. At normal operating temperatures no external heatsink is required.
The L6204 dual full‑bridge driver integrates isolated DMOS power transistors with CMOS logic on a single chip, providing high‑efficiency chopping for DC and stepper motor applications. It supports supply voltages up to 48 V, TTL/CMOS compatible inputs, cross‑conduction protection, and thermal shutdown.
The document includes a block diagram, pin‑out and description, absolute maximum ratings, electrical characteristics, and application notes such as recirculation handling, power dissipation calculations, and mechanical dimensions. It also details protection mechanisms like dead‑time insertion and thermal shutdown, and provides guidelines for PCB layout and bootstrap capacitor selection.
| Supply Voltage (Vs) | 12 V – 48 V |
|---|---|
| Pulsed Output Current (Ip) | 3 A |
| Total Quiescent Current (Is) | 10 mA |
| On‑Resistance (Rds(on)) | 1.2 Ω |
| Thermal Shutdown Temperature | 150 °C |
| Maximum Power Dissipation | 5 W |
The device operates with a supply voltage up to 48 V.
The typical on‑resistance is 1.2 Ω.
It provides two sense pins, SENSE1 and SENSE2, for current feedback.