LB1943 datasheet(2/5 Pages) SANYO

2 / 5 page

No. 58062/5

LB1943

Continued from preceding page.

Note: Items marked with an asterisk (*) are design target values, and are not tested.

Input levels: VH: Over 4.2 V

VM: 2.0 to 3.0 V

VL: Under 1.0 V

IN1 and IN2 go to 2.5 V when left open.

LB1943 operation is equivalent to that of the LB1641.

Pin Assignment

Parameter

Symbol

Conditions

Ratings

Unit

min

typ

max

VOUT1

RL = 60 Ω, VC = 2.5 V

4.4

4.95

5.4

Output voltage

VIN1 = 2.5 V, VIN2 = 0 V

VOUT2

RL = 60 Ω, VC = 2.5 V

4.4

4.95

5.4

VIN1 = 2.5 V, VIN2 = 5.0 V

Output leakage current

IOL

RL = ∞

0.01

1.0

Saturation voltage (upper)

V (sat)11

VCC = 12V, IOUT = 300 mA

1.9

2.2

V (sat)12

VCC = 12V, IOUT = 500 mA

1.9

2.3

Saturation voltage (lower)

V (sat)21

VCC = 12V, IOUT = 300 mA

0.25

0.5

V (sat)22

VCC = 12V, IOUT = 500 mA

0.4

0.65

Reference power supply

VREF

6.0

6.35

6.8

Reference voltage load characteristics

∆VREF/∆IREF

IREF = 0 to –2.0 mA

0.05

0.1

V/mA

Control-to-output gain

VOUT/VC, VC = 2.5 V, RL = 60 Ω

1.5

1.9

2.4

TSD operating temperature

TSTD

150

180

°C

-25

0.4

0.6

0.8

1.0

1.2

1.4

100

Pd max – Ta

Ambient temperature, Ta –

°C

0.6

Tj = 125

°C

Truth Table

Input

Output voltage

Operation

IN1

IN2

OUT1

OUT2

FULL

Forward (reverse) operation

VC × 2

Forward (reverse) operation

VC × 2

Forward (reverse) operation

OFF

Braking

OFF

Braking

OFF

Braking

FULL

Reverse (forward) operation

VC × 2

Reverse (forward) operation

VC × 2

Reverse (forward) operation

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