SC419 datasheet(5/24 Pages) SEMTECH

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SC419

Electrical Characteristics (continued)

Parameter

Conditions

Min

Typ

Max

Units

Logic Inputs/Outputs

Logic Input High Voltage - EN

1.0

Logic Input High Voltage - PSV

Forced continuous mode (PSV pulled to VDDA);

PSV with respect to VDDA

-0.4

Logic Input Low Voltage - EN

With respect to VDDA

0.4

EN Input Bias Current

EN = VDDA or AGND

-10

+10

μA

FB Input Bias Current

FB = VDDA or AGND

-1

μA

PSV Input Bias Current

PSV = VDDA

μA

High-Side Driver (DH, BST, LX)

Peak Current(1)

2.0

On Resistance

DH_PULL-UP, LX < 0.5V

3.0

6.0

Ω

DH_PULL-UP, LX > 0.5V

1.0

2.0

Ω

DH_PULL-DOWN

0.6

1.2

Ω

Rise Time(1)

DH-LX = 3nF

Fall Time(1)

DH-LX = 3nF

Propagation Delay(1)

From FB Comparator Input to DH

Shoot-thru Protection Delay(1)

Bootstrap Switch On Resistance

Low-Side Driver (DL, VDDP, PGND)

Peak Current(1)

4.0

On Resistance

DL_PULL-UP

1.3

2.1

Ω

DL_PULL-DOWN

0.50

0.86

Ω

Rise Time(1)

DL = 3nF

Fall Time(1)

DL = 3nF

3.5

Notes:

(1) Guaranteed by design.

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