L6234 three-phase motor driver, supply voltage from 7 to 52 V, peak current 5 A, RDS ON 0.3 Ω typical value at 25 °C, cross conduction protection, TTL compatible driver, operating frequency up to 50 kHz, thermal shutdown, intrinsic fast freewheeling diodes, input and enable function for each half bridge, 10 V external reference available
The L6234 is a triple half‑bridge driver designed to drive brushless DC motors. It operates from a supply voltage of 7 V to 52 V and can deliver up to 5 A peak current per bridge, with TTL, CMOS and µP compatible logic inputs. The device is offered in a 20‑pin POWER DIP (16+2+2) and a PowerSO20 package.
The datasheet details absolute maximum ratings, recommended operating conditions, thermal resistance values, and pin functions. Electrical characteristics such as RDS(on) of 0.3 Ω, VREF of 12 V, and a maximum commutation frequency of 50 kHz are listed, along with mechanical dimensions and packaging information.
| Supply Voltage Range | 7‑52 V |
|---|---|
| Peak Output Current | 5 A |
| RDS(on) (typical) | 0.3 Ω |
| Thermal Shutdown Temperature | 150 °C |
| Reference Voltage (VREF) | 12 V |
| Thermal Resistance (junction‑to‑pin, DIP) | 12 °C/W |
The L6234 operates from 7 V up to 52 V.
The typical RDS(on) is 0.3 Ω.
Each bridge can deliver up to 5 A peak current.
It is available in a 20‑pin POWER DIP (16+2+2) and a PowerSO20 package.