Datasheet SiC931 (Vishay) - 4
| Hersteller | Vishay |
| Beschreibung | 4.5 V to 18 V Input, 20 A MicroBRICK DC/DC Regulator Module |
| Seiten / Seite | 22 / 4 — SiC931. ELECTRICAL SPECIFICATIONS. PARAMETER SYMBOL. TEST. CONDITIONS. … |
| Dateiformat / Größe | PDF / 3.6 Mb |
| Dokumentensprache | Englisch |
SiC931. ELECTRICAL SPECIFICATIONS. PARAMETER SYMBOL. TEST. CONDITIONS. MIN. TYP. MAX. UNIT. Power Supplies. Controller and Timing
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SiC931
www.vishay.com Vishay Siliconix
ELECTRICAL SPECIFICATIONS
(VIN = 12 V, VEN = 5 V, TJ = -40 °C to +125 °C, unless otherwise stated)
PARAMETER SYMBOL TEST CONDITIONS MIN. TYP. MAX. UNIT Power Supplies
VDD supply VDD VIN = 6 V to 18 V 4.75 5 5.25 V VDD UVLO threshold, rising VDD_UVLO 3.3 3.6 3.9 VDD UVLO hysteresis VDD_UVLO_HYST - 300 - mV Maximum VDD current IDD VIN = 6 V to 18 V 3 - - mA VDRV supply VDRV VIN = 6 V to 18 V 4.75 5 5.25 V Maximum VDRV current IDRV VIN = 6 V to 18 V 50 - - mA Input current IIN Non-switching, VFB > 0.6 V - 75 125 μA Shutdown current IIN_SHDN VEN = 0 V - 0.5 3
Controller and Timing
T Feedback voltage V J = 25 °C 597 600 603 FB m/V TJ = -40 °C to +125 °C (1) 594 600 606 VFB input bias current IFB - 2 - nA Minimum on-time tON_MIN. - 40 50 ns tON accuracy tON_ACCURACY -10 - 10 % On-time range tON_RANGE 65 - 2250 ns Minimum off-time tOFF_MIN. 205 250 305
Fault Protections
Over current protection (inductor valley I current) OCP TJ = -10 °C to +125 °C -20 - 20 % Output OVP threshold VOVP - 20 - VFB with respect to 0.6 V reference Output UVP threshold VUVP - -80 - T Over temperature protection OTP_RISING Rising temperature - 150 - °C TOTP_HYST Hysteresis - 25 -
Power Good
V Power good output threshold FB_RISING_VTH_OV VFB rising above 0.6 V reference - 20 - % VFB_FALLING_VTH_UV VFB falling below 0.6 V reference - -10 - Power good hysteresis VFB_HYST - 45 - mV Power good on resistance RON_PGOOD - 14 20 Power good delay time tDLY_PGOOD 15 25 35 μs
EN / MODE / Ultrasonic Threshold
EN logic high level VEN_H 1.6 - - V EN logic low level VEN_L - - 0.4 EN pull down resistance REN - - - M
Switching Frequency
fSW = 600 kHz - 51 55 f MODE1 (switching frequency) R SW = 1 MHz 90 100 110 MODE1 k fSW = 1.5 MHz 180 200 220 fSW = 2 MHz 450 499 -
Soft Start
Connect RMODE2 between 1.8 3 4.2 MODE2 and A Soft start time t GND ss ms Connect RMODE2 between 3.6 6 8.4 MODE2 and VDD
Over Current Protection
IOCP = 32 A 450 499 - I MODE2 (over current protection) R OCP = 24.8 A 180 200 220 MODE2 k IOCP = 17.3 A 90 100 110 IOCP = 9.6 A - 51 55
Note
(1) Guaranteed by design S23-0880-Rev. G, 23-Oct-2023
4
Document Number: 79602 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
www.vishay.com Vishay Siliconix
ELECTRICAL SPECIFICATIONS
(VIN = 12 V, VEN = 5 V, TJ = -40 °C to +125 °C, unless otherwise stated)
PARAMETER SYMBOL TEST CONDITIONS MIN. TYP. MAX. UNIT Power Supplies
VDD supply VDD VIN = 6 V to 18 V 4.75 5 5.25 V VDD UVLO threshold, rising VDD_UVLO 3.3 3.6 3.9 VDD UVLO hysteresis VDD_UVLO_HYST - 300 - mV Maximum VDD current IDD VIN = 6 V to 18 V 3 - - mA VDRV supply VDRV VIN = 6 V to 18 V 4.75 5 5.25 V Maximum VDRV current IDRV VIN = 6 V to 18 V 50 - - mA Input current IIN Non-switching, VFB > 0.6 V - 75 125 μA Shutdown current IIN_SHDN VEN = 0 V - 0.5 3
Controller and Timing
T Feedback voltage V J = 25 °C 597 600 603 FB m/V TJ = -40 °C to +125 °C (1) 594 600 606 VFB input bias current IFB - 2 - nA Minimum on-time tON_MIN. - 40 50 ns tON accuracy tON_ACCURACY -10 - 10 % On-time range tON_RANGE 65 - 2250 ns Minimum off-time tOFF_MIN. 205 250 305
Fault Protections
Over current protection (inductor valley I current) OCP TJ = -10 °C to +125 °C -20 - 20 % Output OVP threshold VOVP - 20 - VFB with respect to 0.6 V reference Output UVP threshold VUVP - -80 - T Over temperature protection OTP_RISING Rising temperature - 150 - °C TOTP_HYST Hysteresis - 25 -
Power Good
V Power good output threshold FB_RISING_VTH_OV VFB rising above 0.6 V reference - 20 - % VFB_FALLING_VTH_UV VFB falling below 0.6 V reference - -10 - Power good hysteresis VFB_HYST - 45 - mV Power good on resistance RON_PGOOD - 14 20 Power good delay time tDLY_PGOOD 15 25 35 μs
EN / MODE / Ultrasonic Threshold
EN logic high level VEN_H 1.6 - - V EN logic low level VEN_L - - 0.4 EN pull down resistance REN - - - M
Switching Frequency
fSW = 600 kHz - 51 55 f MODE1 (switching frequency) R SW = 1 MHz 90 100 110 MODE1 k fSW = 1.5 MHz 180 200 220 fSW = 2 MHz 450 499 -
Soft Start
Connect RMODE2 between 1.8 3 4.2 MODE2 and A Soft start time t GND ss ms Connect RMODE2 between 3.6 6 8.4 MODE2 and VDD
Over Current Protection
IOCP = 32 A 450 499 - I MODE2 (over current protection) R OCP = 24.8 A 180 200 220 MODE2 k IOCP = 17.3 A 90 100 110 IOCP = 9.6 A - 51 55
Note
(1) Guaranteed by design S23-0880-Rev. G, 23-Oct-2023
4
Document Number: 79602 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