A5949GETTR-T

A5949/A5939 Three Phase Sinusoidal Fan Controller FEATURES AND BENEFITS  AEC-Q100 qualified – K version  Sinusoidal Drive For Low Audible Noise  Quiet StartUp  Proprietary High Efficiency Control Algorithm  Adjustable Current Source Based Gate Drive  Speed Input • PWM – A5949 • Analog – A5939  Windmill Detection  Hall Element or Hall Latch Compatible  FG Speed Output  Lock Detection  Overcurrent Limit (OCL)  Short Circuit Protection (OCP)  Direction Input  Brake Input DESCRIPTION The A5939/A5949 three phase motor controller incorporates sinusoidal drive to minimize audible noise and vibration for high power fans. A sinusoidal voltage profile is applied to the windings of the motor at startup to quietly startup and gradually ramp up the motor to desired speed. 深 w 圳市 w 钧 w .ju 敏 nm 科 in 技有 te 限 ch 公 .c 司 om For A5949, The motor speed is controlled by applying a Duty cycle command to the SPD input The SPD input is allowed to operate over a wide frequency range. For the A5939, speed is controlled with analog voltage in range 250mv to 2.5V. The A5949 and A5939 are available in a 28L ETSSOP package, suffix “LP”, and a 28Lead QFN, suffix “ET”. .1uF X5R 10V CP1 CP2 .1uF X5R 10V 9 SPD A/D 9 VREF SEL Demand CPUMP Demand Control VCP VBB 12 or 24V PWM to Duty nFAULT 47uf GHA GHB GHC X BRAKE VREF Sine Drive Waveshape DIR HA+ 6 GATE DRIVE HA- X X GLA GLB HALL HB+ SA SB SC Comm Logic GLC HALL LSS HBHC+ GND PWM OSC ISET HALL VREF HC.1uF X5R 10V FG TSD OCL 2p8 VREG VREF Typical Application Preliminary Datasheet 1/26/2015 Three Phase Sinusoidal Fan Controller A5939/5949 SELECTION GUIDE Part Number Ambient Temperature A5949GLPTR-T -40 to 105C A5949GETTR-T -40 to 105C A5949KLPTR-T (Note1) -40 to 125C A5939GLPTR-T -40 to 105C A5939GETTR-T -40 to 105C A5939KLPTR-T (Note1) -40 to 125C Package Packing 1. Contact factory for availability ABSOLUTE MAXIMUM RATINGS Supply Voltage Logic Input Voltage Range (SPD, BRAKE, DIR) Logic Output – FG, nFAULT LSS Output Voltage ISET VCP CP1 CP2 Hall Inputs Junction Temperature Storage Temperature Range Operating Temperature Range Symbol Conditions Min. Max. Units 50 V -.3 6 V -500 -4 -2 -.3 VBB-.3 -.3 VBB-.3 -.3 6 500 4 VBB+2 5.5 VBB+8 VBB+.3 VCP+.3 6 V mV V V V V V V V -55 -40 -40 150 150 105 125 °C °C °C °C 深 w 圳市 w 钧 w .ju 敏 nm 科 in 技有 te 限 ch 公 .c 司 om Parameter Typ. VBB VIN Vo VLSS VOUT FG (I