LB11948T

No.7947-2/13

Recommended Operating Conditions at Ta = 25

°C

Parameter

Symbol

Conditions

Ratings

Unit

VS supply voltage

VS

3.0 to 15

V

VCC supply voltage

VCC

3.0 to 15

V

VCC ≤ 4V

0.0 to 1.0

V

Reference voltage

VREF

VCC > 4V

0.0 to 1.5

V

Electrical Characteristics Ta = 25

°C, VS = VCC = 5V, VREF = 0.3V

Ratings

Parameter

Symbol

Conditions

min

typ

max

Unit

[Output Block]

IVS OFF

PH1 = PH2 = 0V, EN1 = EN2 = 3.0V, ST = 3.0V

5

μA

IVS ON

PH1 = PH2 = EN1 = EN2 = 0V, ST = 3.0V

28

40

52

mA

VS system supply current

IVS wt

PH1 = PH2 = EN1 = EN2 = ST = 0V

1

μA

Output saturation voltage 1

VO (sat) 1

IO = +0.2A (source)

0.2

0.4

V

Output saturation voltage 2

VO (sat) 2

IO = +0.4A (source)

0.3

0.5

V

Output saturation voltage 3

VO (sat) 3

IO = -0.2A (sink)

0.2

0.4

V

Output saturation voltage 4

VO (sat) 4

IO = -0.4A (sink)

0.3

0.5

V

IO1 (leak)

VO = VBB (sink)

50

μA

Output leakage current

IO2 (leak)

VO = 0V (source)

-50

μA

Upper and lower side output diodes

Forward voltage 1 (upper side)

VF1

I = 400mA

0.9

1.1

1.3

V

Forward voltage 2 (lower side)

VF2

I = 400mA

0.9

1.1

1.3

V

[Logic Block]

ICC OFF

PH1 = PH2 = 0V, EN1 = EN2 = 3.0V, ST = 3.0V

6.5

10

13.5

mA

ICC ON

PH1 = PH2 = EN1 = EN2 = 0V, ST = 3.0V

7

11

15

mA

VCC system supply current

ICC wt

PH1 = PH2 = EN1 = EN2 = ST = 0V

1

μA

VI on

2.0

V

Input voltage

VI off

0.8

V

Input current

IIN

VIN = 5V

70

100

130

μA

Reference voltage : 1V

V1V

IO = 1mA

0.95

1

1.05

V

Current setting reactive current

IE

-22

-17

-10.5

mA

Reference current

IREF

VREF = 0.3V, VE = 0.3V

-1

μA

CR pin current 1

ICR1

CR = 0.5V

-2

μA

CR pin current 2

ICR2

CR = 3V

1.65

2.2

2.75

mA

Sense voltage 1

VSEN1

VREF = 0.5V

0.475

0.5

0.525

V

Thermal shutdown temperature *

TS

*

170

°C

Note * : Design guarantee value

Truth Table

Channel 1

Channel 2

Input

Input

Output

Input

Output

ST

PHASE1

ENABLE1

OUT1-

OUT1

PHASE2

ENABLE2

OUT2-

OUT2

H

L

L

H

L

L

L

H

L

H

H

L

L

H

H

L

L

H

H

*

H

OFF

OFF

*

H

OFF

OFF

L

*

*

OFF

OFF

*

*

OFF

OFF

Note * : Levels shown as an asterisk (*) can be set to be either high or low.