L9925 datasheet(4/9 Pages) STMICROELECTRONICS

4 / 9 page

Logic Levels

All inputs are positive, non inverting logic

Logic State

Voltage Range

-0.3 to 1.5V

3.5 to 6.0V

Truth Table

Enable/ Disable

EN1

EN0

Bridge 1

Bridge 2

Disabled

<200

µA

Disabled

Enabled

<12mA

Enabled

Disabled

<12mA

Enabled

<12mA

General Operation

With the bridge enabled, each input INx, maps di-

rectly to the corresponding output OUTx.

The output voltage will be equal to the difference

between the supply rail and the product of the

load current ad the on resistance of the output

switch.Vout =Vsupply -(RDS,ON

⋅ ILOAD).

Sourced load currents are positive.

IN1

OUT1

IN2

OUT2

IN3

OUT3

IN4

OUT4

000

1VS

10%

tdSB

OUT1

IN2

IN1

EN1

EN2

OUT2

tdSB

D99AT425

STANDBY MODE

OPERATING MODE

OVERTEMPERATURE

STANDBY MODE

tdOFF

tdSB

tdON

90%

50%

Tristate

Figure 1. Timing Diagram

-40

D99AT426

RON

(

Ω)

VVS=6V

VVS=12V

-20

100 120 140 160

°C)

Figure 2. Typical RON - Characteristics of Source

and Sink Stage

1.5

0.75

0.9

1.9

D99AT427

RON

(

Ω)

max for TJ≤125°C

IOUT1/2=±0.3A

typ. for TJ=25°C

16.5

VVS(V)

Figure 3. ON - Resistance vs Supply Voltage

L9925

4/9

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