Datasheet SiC951 (Vishay) - 6

SiC951
www.vishay.com Vishay Siliconix
ELECTRICAL SPECIFICATIONS
(PVIN = 12 V, TJ = -40 °C to +125 °C, unless otherwise specified)
LIMITS PARAMETER TEST CONDITIONS UNIT MIN. TYP. MAX. Controller and Timing
Minimum on-time - 50 - ns tON accuracy -10 - 10 % Frequency accuracy Default frequency is 600 kHz 540 600 660 kHz Frequency setting range CCM mode 300 - 1500 Minimum off-time - 250 - ns
VOUT Soft Start / Soft Stop
tON_RISE From VOUT = 0 V to VOUT set point 0 - 127 tON_DELAY From ON_OFF_CONFIG invoked until VOUT set point 0 - 127 From the end of the turn-off ms tOFF_FALL delay time until the voltage is commanded to zero 0 - 127 IOUT_OC_FAULT_LIMIT current must not be exceeded tOFF_DELAY From ON_OFF_CONFIG invoked until VOUT = 0 V 0 - 127
VOUT Faults
Time to detect and set fault registers for OV warn, OV fault, (configurable) - 100 - ns VOUT faults (VOUT UV warning and fault has 78 Hz filtering time) Time to power up the output tON_MAX_FAULT_LIMIT 0 - 127 without reaching the output under voltage fault limit ms Time to power down the output tOFF_MAX_WARN_LIMIT 0 - 127 without reaching 12.5 % of VOUT set point
Power Good
VOUT rising (default value, can be changed by PMBus) - 90 - Power good output threshold VOUT falling (default value, can be changed by PMBus) - 85 - % Power good hysteresis Default rising and falling thresholds - 5 - Power good on resistance - 5.5 - Ω Power good delay time (rising) - 25 - μs Power good delay time (falling) - 30 -
Temperature Monitor and Temperature Shutdown
Resolution - 1 - Range -40 - 150 Accuracy - ± 5 - °C Thermal shutdown - 125 - Thermal shutdown hysteresis - 35 -
Digital Inputs ADDR, SALRT, SCLK, SDA, EN
VIH Input high threshold 2 - - VIL Input low threshold - - 0.8 V VHYST Input hysteresis - 0.1 - CPIN Input C - 5 - pF S23-0736-Rev. C, 12-Sep-2023
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