L6382DTR STMicroelectronics

L6382D Power management unit for LED drivers Datasheet - production data Applications Dimmable / non-dimmable LED drivers SO-20 Description The L6382D device is suitable for LED drivers Features embedding a PFC stage and a half-bridge stage. The L6382D includes 4 MOSFET driving stages Integrated high voltage startup (for the PFC, for the half-bridge, and for the 4 drivers for PFC, half-bridge and auxiliary auxiliary MOSFET) plus a power management MOSFETs unit (PMU) featuring also a reference able to supply the microcontroller in any condition. 3.3 V microcontroller compatible Fully integrate power management for all In addition to increasing application efficiency, the operating modes L6382D device reduces the bill of materials as different tasks (regarding drivers and power Internal two point V regulator CC management) are performed by a single IC, which Overcurrent protection with digital output signal improves application reliability. Cross conduction protection (interlocking) Undervoltage lockout Integrated bootstrap diode Figure 1. Block diagram September 2014 DocID10972 Rev 8 1/21 This is information on a product in full production. www.st.comContents L6382D Contents 1 Device description 3 2 Pin settings 4 2.1 Pin connection 4 2.2 Pin description 4 3 Maximum ratings 6 3.1 Absolute maximum ratings . 6 3.2 Thermal data . 6 4 Electrical characteristics . 7 5 Typical electrical performance 11 6 Application information . 12 6.1 Power management . 12 6.2 Startup mode 12 6.2.1 Save mode . 13 6.2.2 Operating mode . 13 6.2.3 Shutdown 14 7 Block description 16 7.1 Supply section . 16 7.2 3.3 V reference voltage 16 7.3 Drivers . 17 7.4 Internal logic, overcurrent protection (OCP) and interlocking function . 17 8 Package information 18 9 Order codes . 20 10 Revision history . 20 2/21 DocID10972 Rev 8