L6234 STMicroelectronics

L6234 Three-phase motor driver Datasheet - production data Description The L6234 is a triple half bridge to drive a brushless DC motor. It is realized in BCDmultipower technology which combines isolated DMOS power transistors with CMOS and bipolar circuits on the same chip. 1PXFS40 By using mixed technology it has been possible to optimize the logic circuitry and the power stage to achieve the best possible performance. Features The output DMOS transistors can sustain a very high current due to the fact that the DMOS Supply voltage from 7 to 52 V structure is not affected by the second breakdown 5 A peak current effect, the RMS maximum current is practically R 0.3 typ. value at 25 C limited by the dissipation capability of the DSon package. Cross conduction protection All the logic inputs are TTL, CMOS and P TTL compatible driver compatible. Each channel is controlled by two Operating frequency up to 150 kHz separate logic inputs. Thermal shutdown The L6234 device is available in a 20-pin Intrinsic fast free wheeling diodes PowerSO20 package. Input and enable function for each half bridge Table 1. Device summary 10 V external reference available Order code Package Packing L6234PD PowerSO20 Tube L6234PD013TR PowerSO20 Tape and reel March 2017 DocID1107 Rev 11 1/15 This is information on a product in full production. www.st.comContents L6234 Contents 1 Block diagram 3 2 Pin connections . 4 3 Thermal data . 5 4 Maximum ratings 6 Recommended operating conditions . 6 5 Electrical characteristics . 7 6 Circuit description . 8 7 Typical characteristics . 9 8 Package information 12 8.1 PowerSO20 package information . 12 9 Revision history . 14 2/15 DocID1107 Rev 11