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TLE9185QXV33 Datasheet(PDF) 51 Page - Infineon Technologies AG |
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TLE9185QXV33 Datasheet(HTML) 51 Page - Infineon Technologies AG |
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51 / 192 page  Datasheet 51 Rev. 1.0 2021-01-21 TLE9185QXV33 BLDC Driver Gate Drivers Post-charge A post-charge is initiated if POCHGDIS is set to 0 (GENCTRL) to reach the minimum MOSFET Rdson: • POCHGDIS = 0: After the charge phase, the control signal for the charge current of LSx is increased by one current step at every bridge driver clock cycle (BDFREQ) to ICHGMAXx. Refer to Figure 27 • POCHGDIS = 1: The post-charge phase is disabled. The charge current is kept to the ICHGx Figure 27 PWM overview - AGC = 10B or 11B, POCHGDIS=0 (post-charge enabled) Figure 28 PWM overview - AGC = 10B or 11B, POCHGDIS=1 (post-charge disabled) Table 18 Abbreviations for adaptive turn-on and turn-off phases in PWM configuration Abbreviation Definition Suffix x Related to the half-bridge x. VGS_HSx Gate-Source voltage of high-side MOSFET x. IGS_HSx Gate current of high-side MOSFET x. IGS_HSx is positive when the current flows out of GHx. VGS_LSx Gate-Source voltage of low-side MOSFET x. IGS_LSx Gate current of low-side MOSFET x. IGS_LSx is positive when the current flows out of GLx. tPWM_SYNCH Synchronization delay between external and internal PWM signal. tHBxCCP ACTIVE Active cross-current protection time of HBx. See control register CCP_BLK. tHBxBLANK ACTIVE Active Drain-source overvoltage blank time of HBx. See control register and CCP_BLK. tHBxCCP FW Freewheeling cross-current protection time of HBx. See control register CCP_BLK. IGS IPRECHGx - IPREDCHGx ICHGMAXx - IDCHGx ICHGx Post-charge 0 tPDCHGx t tHBxCPP active tPCHGx tBLANK active Precharge Predischarge Turn-on of: PWM MOSFET if EN_GEN_CHECK = 0 Active MOSFET if EN_GEN_CHECK =1 Turn-off of: PWM MOSFET if EN_GEN_CHECK = 0 Active MOSFET if EN_GEN_CHECK =1 IGS IPRECHGx - IPREDCHGx - IDCHGx ICHGx 0 Turn-on of: PWM MOSFET if EN_GEN_CHECK = 0 Active MOSFET if EN_GEN_CHECK =1 t tHBxCPP Active tBLANK Active tPDCHGx tPCHGx Precharge Predischarge Turn-off of: PWM MOSFET if EN_GEN_CHECK = 0 Active MOSFET if EN_GEN_CHECK =1 |
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