L99UDL01 datasheet(33/88 Pages) STMICROELECTRONICS

33 / 88 page

DS12511 Rev 5

33/88

L99UDL01

Electrical characteristics

4.3.4

Integrated half bridge

4.3.5

Integrated half bridge current control loop

Table 9. Integrated half-bridge DC parameters

Electrical characteristics (-40°C < TJ < 130°C, 6V < VS < 18V unless otherwise specified)

Req ID

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

D.001

Ron_HS

Static on resistance High

side switch RDS(on)

25°C, IOUT=2 A



D.002

-40°C < TJ < 125°C, IOUT=2 A

180

D.003

Ron_LS

Static on resistance Low

side switch RDS(on)

25°C, IOUT=2 A



D.004

-40°C < TJ < 125°C, IOUT=2 A

180

D.005

IOUTLEAK Output pulled to Ground

-40°C < TJ < 25°C, All outputs off

A

D.006

25°C < TJ < 125°C, All outputs off

D.007

IOUTLEAK Output pulled to Ground At least one output on

180

250

A

D.008

IOUTLEAK Output pulled to VSx

At least one output on

A

D.009

IOUTLEAK Output pulled to VSx

-40°C < TJ < 125°C



All outputs off

-55

-35

A

D.012

VOUT_th

Dynamic output voltage

threshold

1.5

1.8

2.1

D.013

IREG Range Current regulation range

OCPx(0;3) = 0 to F

One output only,

Max ripple = 20%

D.014

IREG_STEP

Current regulation step

size

200

D.015

IREG_TOL

Current Regulation

Tolerance

OCPx(0:3) = 7h

-15

Table 10. Integrated half-bridge current control parameters

Electrical characteristics (-40°C < TJ < 130°C, 6V < VS < 18V unless otherwise specified)

Req ID

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

D.016

Integral gain factor 2Ki

3 bits from 2-7 to 20

Tested by scan

D.017

Proportional gain factor

2Kp

3 bits from 21 to 28

Tested by scan

D.018

KFB

Current feedback

conversion per LSB



RegX[1-10] x KFB = Imeasure

RegX[1-10] = Values read in

registers 13H- 18H

6.25

mA /

bit

D.019

KFB_tol

Current feedback

conversion tolerance

Values read in registers 13H-

18H

-15

+15

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