PT5671 3-Phase MOSFET Gate Driver DESCRIPTION FEATURES It is low consumption by BCD process adoption Driver up to 3-phase half-bridge gates Wide power-supply voltage range: - Motor (VM): 4.5V - 32V Operating temperature range: -40 to +85°C Charge-pump Built-in protection circuits - Shoot-through protection - Under Voltage Lock Out (UVLO) - Thermal Shut Down (TSD) The PT5671 is a three-phase controller for use with N-channel external power MOSFETs and. One logic level input is provided for each of the six power MOSFETs in the 3-phase bridge, allowing motors to be driven with any commutation scheme defined by an external controller. The power MOSFETs are protected from cross-conduction by integrated crossover control. PT5671 uses a new multi-power BCD technology, only requiring a single power supply of VM = 4.5 - 32V and a few external components. APPLICATIONS 3-phase Sensor-Less /hall-sensor controlled BLDC fan motor driver 3-phase BLDC motor BLOCK DIAGRAM VM 5V Regulator PS Power save UVLO TSD Band Gap VCC VG Charge pump CH CL HV Level Shifter UHD UL LV Driver ULD VH HV Level Shifter VHD VL LV Driver VLD WH HV Level Shifter WHD LV Driver WLD UH Shoot-through protection Shoot-through protection Shoot-through protection WL GND Tel: 886-66296288‧Fax: 886-29174598‧ http://www.princeton.com.tw‧2F, No.233-1, Baociao Rd., Sindian Dist., New Taipei City 23145, Taiwan PT5671 APPLICATION CIRCUIT External parts Item Decupling Capacitor for Motor driver power supply Bypass capacitor for Control power supply Charge pump Capacitor 1 Charge pump Capacitor 2 Symbol Capacitor value Min Typ. Max CVM 1.0 CVCC 0.1 - CVG CHL 0.047 0.047 0.1 0.1 0.22 0.22 Unit Remark μF Depends on application of PCB μF Depends on application of PCB μF μF Note: A capacitor of CVM, CVCC should be adjusted by Load current profile, Load Capacitor, resister of wiring on application board. V1.0 2 December 2015 PT5671 ORDER INFORMATION Valid Part Number Package Type Top Code PT5671-TX 20 Pins, TSSOP, 173MIL PT5671-TX PT5671-QF 20Pins, QFN, 4*4 PT5671-QF PIN CONFIGURATION WLD UHD ULD 16 14 GND UH 3 13 CH VH 4 12 WH 5 11 VCC CL PS 10 GND 17 11 CH 9 10 2 9 WLD UHD ULD VM VG GND 15 14 13 12 18 6 7 8 VM 8 GND PS VCC CL 15 WL WHD WHD 16 19 5 1 7 WL VHD VL UH VG VHD VLD VLD 20 19 18 17 6 UL VL 1 2 3 4 UL VH WH QFN20 20 TSSOP20 PIN DESCRIPTION I/O VH I Logic input for high-side gate V-phase driver WH I Logic input for high-side gate W-phase driver 2 5 UL I Logic input for low-side gate U-phase driver 3 6 VL I Logic input for low-side gate V-phase driver 4 7 WL I Logic input for low-side gate W-phase driver 5 8 GND GND GND 6 9 PS I Power-saving terminal 7 10 VCC O Internal 5V Regulator, the power supply of low voltage and logic 8 11 CL O Capacitor connect pin for Charge pump 9 12 CH O Capacitor connect pin for Charge pump 10 13 GND GND GND 11 14 VM Power Power supply for driver 12 15 ULD O Low-side gate driver U-phase output 13 16 UHD O High-side gate driver U-phase output 14 17 WLD O Low-side gate driver W-phase output 15 18 WHD O High-side gate driver W-phase output 16 19 VLD O Low-side gate driver V-phase output 17 20 VHD O High-side gate driver V-phase output 18 1 VG O Capacitor connect pin for regulator 19 2 UH I Logic input for high-side gate U-phase driver 20 3 V1.0 Description Pin No. TSSOP20 QFN20 1 4 Pin Name 3 December 2015 PT5671 IMPORTANT NOTICE Princeton Technology Corporation (PTC) reserves the right to make corrections, modifications, enhancements, improvements, and other changes to its products and to discontinue any product without notice at any time. PTC cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a PTC product. No circuit patent licenses are implied. Princeton Technology Corp. 2F, 233-1, Baociao Road, Sindian Dist., New Taipei City 23145, Taiwan Tel: 886-2-66296288 Fax: 886-2-29174598 http://www.princeton.com.tw V1.0 10 December 2015