Datasheet SiC931 (Vishay) - 4
| Manufacturer | Vishay |
| Description | 4.5 V to 18 V Input, 20 A MicroBRICK DC/DC Regulator Module |
| Pages / Page | 22 / 4 — SiC931. ELECTRICAL SPECIFICATIONS. PARAMETER SYMBOL. TEST. CONDITIONS. … |
| File Format / Size | PDF / 3.6 Mb |
| Document Language | English |
SiC931. ELECTRICAL SPECIFICATIONS. PARAMETER SYMBOL. TEST. CONDITIONS. MIN. TYP. MAX. UNIT. Power Supplies. Controller and Timing
Model Line for this Datasheet
Text Version of Document
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
