SIC788 datasheet(4/17 Pages) VISHAY

4 / 17 page

SiC788, SiC788A

www.vishay.com

Vishay Siliconix

S20-0486-Rev. D, 29-Jun-2020

Document Number: 62985

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

Notes

(1) Typical limits are established by characterization and are not production tested

(2) Guaranteed by design

ELECTRICAL SPECIFICATIONS



(DSBL# = SMOD# = 5 V, VIN = 12 V, VDRV and VCIN = 5 V, TA = 25 °C)

PARAMETER

SYMBOL

TEST CONDITION

LIMITS

UNIT

MIN.

TYP.

MAX.

POWER SUPPLY

Control logic supply current

IVCIN

VDSBL# = 0 V, no switching, VPWM = FLOAT

μA

VDSBL# = 5 V, no switching, VPWM = FLOAT

290

VDSBL# = 5 V, fS = 300 kHz, D = 0.1

295

Drive supply current

IVDRV

fS = 300 kHz, D = 0.1

fS = 1 MHz, D = 0.1

VDSBL# = 0 V, no switching

μA

VDSBL# = 5 V, no switching

BOOTSTRAP SUPPLY

Bootstrap diode forward voltage

IF = 2 mA

0.4

PWM CONTROL INPUT (SiC788)

Rising threshold

VTH_PWM_R

3.4

3.7

4.0

Falling threshold

VTH_PWM_F

0.72

0.9

1.1

Tri-state voltage

VTRI

VPWM = FLOAT

2.3

Tri-state rising threshold

VTRI_TH_R

0.9

1.15

1.38

Tri-state falling threshold

VTRI_TH_F

3.1

3.35

3.6

Tri-state rising threshold hysteresis

VHYS_TRI_R

225

Tri-state falling threshold hysteresis

VHYS_TRI_F

325

PWM input current

IPWM

VPWM = 5 V

350

μA

VPWM = 0 V

-350

PWM CONTROL INPUT (SiC788A)

Rising threshold

VTH_PWM_R

2.2

2.45

2.7

Falling threshold

VTH_PWM_F

0.72

0.9

1.1

Tri-state voltage

VTRI

VPWM = FLOAT

1.8

Tri-state rising threshold

VTRI_TH_R

0.9

1.15

1.38

Tri-state falling threshold

VTRI_TH_F

1.95

2.2

2.45

Tri-state rising threshold hysteresis

VHYS_TRI_R

225

Tri-state falling threshold hysteresis

VHYS_TRI_F

275

PWM input current

IPWM

VPWM = 3.3 V

225

μA

VPWM = 0 V

-225

TIMING SPECIFICATIONS

Tri-State to GH/GL rising

propagation delay

tPD_TRI_R

No load, see fig. 4

-30-

Tri-state hold-off time

tTSHO

130

GH - turn off propagation delay

tPD_OFF_GH

-18-

GH - turn on propagation delay

(dead time rising)

tPD_ON_GH

-15-

GL - turn off propagation delay

tPD_OFF_GL

-12-

GL - turn on propagation delay

(dead time falling)

tPD_ON_GL

-8-

DSBL# low to GH/GL falling

propagation delay

tPD_DSBL#_F

Fig. 5

DSBL# high to GH/GL rising

propagation delay

tPD_DSBL#_R

Fig. 5

PWM minimum on-time

tPWM_ON_MIN

DSBL# SMOD# INPUT

DSBL# logic input voltage

VIH_DSBL#

Input logic high

VIL_DSBL#

Input logic low

0.8

SMOD# logic input voltage

VIH_SMOD#

Input logic high

VIL_SMOD#

Input logic low

0.8

PROTECTION

Under voltage lockout

VUVLO

VCIN rising, on threshold

3.7

4.1

VCIN falling, off threshold

2.7

3.1

Under voltage lockout hysteresis

VUVLO_HYST

575

THWn flag set (2)

TTHWn_SET

160

°C

THWn flag clear (2)

TTHWn_CLEAR

135

THWn flag hysteresis (2)

TTHWn_HYST

-25-

THWn output low

VOL_THWn

ITHWn = 2 mA

0.02

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