Datasheet SiC450, SiC451, SiC453 (Vishay) - 4

SiC450, SiC451, SiC453
www.vishay.com Vishay Siliconix
ELECTRICAL SPECIFICATIONS
(PVIN = 12 V, TJ = -40 °C to +125 °C, unless otherwise specified)
LIMITS PARAMETER SYMBOL TEST CONDITIONS UNIT MIN. TYP. MAX. Power Supplies
PVIN, VIN PVIN, VIN 4.5 - 20 VIN_ON, default VIN_ON Default setting - 10 - VIN_OFF, default VIN_OFF Default setting - 9 - V PVCC supply VPVCC VIN = 4.5 V to 20 V 4.5 5 5.5 VDD supply VDD Logic supply voltage 4.5 5 5.5 PVCC UVLO threshold VPVCC_UVLO_TH 3.4 3.6 3.8 PVCC UVLO hysteresis VPVCC_UVLO_HYS - 300 - mV T Input current I J = 25 °C, non-switching, no load, VOUT > VSET, VIN - 3.5 6 IPVCC + IPVDD + IPVIN mA Shutdown current IVIN_SDN EN = 0 V, IPVCC + IPVDD + IPVIN - 2.5 6
PVIN Monitoring
PVIN monitor accuracy VPVIN_MON_ACC - 3 - % PVIN min. monitor resolution VPVIN_MON_RSO - 70 - mV PVIN monitor full scale VPVIN_MON_SCL - - 28 V PVIN read frequency tPVIN_RSP - 78 - Hz
IIN Fault Response Time
IIN fault response time tIIN_RSP IIN_OC_WARN - 78 - Hz
Pin (Input power)
Pin sense accuracy PPVIN_SNS_ACC 5 W to 160 W - 5 - % Pin sense resolution PPVIN_SNS_RSO - 0.5 - W
Output Voltage
VOUT default set-point VOUT VSET resistor = OPEN or SHORT - 0.6 - V VOUT set-point accuracy VOUT_ACC Measured as ΔV (VSEN+ – VSEN-) -1 - 1 % VOUT set-point range VOUT_RNG 0.3 - 12 V VOUT set-point resolution VOUT_RSO - 2 - mV Line regulation VOUT_REG - 1 - % Load regulation VOUT_REG - 1 - VOUT min. monitor resolution VOUT_MON_RSO VOUT scale loop = 1 - 5 - mV VOUT start up delay range tS_DLY_RNG From PVIN valid until 1st PWM pulse - 0 - ms VSEN+ common mode range VVSNS_RNG -0.2 - 12 V VSEN- common mode range VVSNS_RNG -200 - 200 mV VOUT read conversion frequency tVOUT_RSP - 78 - Hz
Controller and Timing
Minimum on-time tON_MIN - 50 - ns Minimum off-time tOFF_MIN - 250 - tON accuracy tON_ACC -10 - 10 % Frequency, default fSW 540 600 660 kHz Frequency setting range fSW_RNG CCM mode 300 - 1500
VOUT Soft Start / Soft Stop
tON rise, default tON_RISE From VOUT = 0 V to VOUT set point - 5 - tON rise, setting range tON_RNG 0 - 127 tOFF fall, default tSSP - 5 - tOFF fall, setting range tSSP,RNG 0 - 127 tON delay, default tON_DLY From VOUT = 0 V to VOUT set point - 0 - ms tON delay, setting range tON_DLY,RNG 0 - 127 tOFF delay, default tOFF_DLY - 0 - tOFF delay, setting range tOFF_DLY,RNG 0 - 127 tON max. fault limit, default tmax_FLT - 20 - tON max. fault limit, setting range tmax_FLT,RNG 0 - 127 S21-0213-Rev. B, 08-Mar-2021
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Document Number: 77863 For technical questions, contact: powerictechsupport@vishay.com THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000