L9954LXPTR Datasheet L9954LXPTR | P1-P3

September 2013 Doc ID 16186 Rev 3 1/35

L9954LXP

Door actuator driver

Features

■

Three half bridges for 0.75 A loads

DSon

= 1600 mΩ)

■

Two configurable high-side driver for up to 1.5A

load (R

DSon

=500mΩ) or 0.35 A load

= 1800 mΩ)

■

One high-side driver for 6 A load

DSon

= 100 mΩ)

■

Programmable soft start function to drive loads

with higher inrush currents (i.e. current > 6 A,

current > 1.5 A)

■

Very low current consumption in standby mode

< 6 µA typ; T

≤ 85 °C)

■

All outputs short circuit protected

■

Current monitor output for high-side OUT1,

OUT4, OUT5 and OUT6

■

All outputs over temperature protected

■

Open-load diagnostic for all outputs

■

Overload diagnostic for all outputs

■

PWM control of all outputs

■

Charge pump output for reverse polarity

protection

Applications

■

Door actuator driver with bridges for mirror axis

control and high-side driver for mirror defroster

and two 10 W light bulbs and/or LEDs.

Description

The L9954LXP is a microcontroller driven

multifunctional door actuator driver for automotive

applications. Up to two DC motors and three

grounded resistive loads can be driven with three

half bridges and three high-side drivers. The

integrated standard Serial Peripheral Interface

(SPI) controls all operation modes (forward,

reverse, brake and high impedance). All

diagnostic information is available via SPI.

PowerSSO-36

Table 1. Device summary

Package

Order codes

Tube Tape and reel

PowerSSO-36 L9954LXP L9954LXPTR

www.st.com

Contents L9954LXP

2/35 Doc ID 16186 Rev 3

Contents

1 Block diagram and pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.2 ESD protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.3 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.5 SPI - electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.1 Dual power supply: VS and VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.2 Standby mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.3 Inductive loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.4 Diagnostic functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.5 Overvoltage and under voltage detection . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.6 Charge pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.7 Temperature warning and thermal shutdown . . . . . . . . . . . . . . . . . . . . . . 21

3.8 Open-load detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.9 Overload detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.10 Current monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

3.11 PWM inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

3.12 Cross-current protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

3.13 Programmable soft start function to drive loads with higher inrush current

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

4 Functional description of the SPI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

4.1 Serial Peripheral Interface (SPI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

4.2 Chip Select Not (CSN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

4.3 Serial Data In (DI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

4.4 Serial Data Out (DO) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

4.5 Serial Clock (CLK) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

4.6 Input Data Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

L9954LXP Contents

Doc ID 16186 Rev 3 3/35

4.7 Status register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

4.8 SPI - input data and status registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

5 Packages thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

6 Package and packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

6.1 ECOPACK

packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

6.2 PowerSSO-36 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

6.3 PowerSSO-36 packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

7 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

P1-P3 P4-P6 P7-P9 P10-P12 P13-P15 P16-P18 P19-P21 P22-P24 P25-P27 P28-P30 P31-P33 P34-P35

L9954LXPTR

Mfr. #:

Buy L9954LXPTR

Manufacturer:

STMicroelectronics

Description:

Motor / Motion / Ignition Controllers & Drivers Door Actuator Driver 0.75A 1600mOhm

Lifecycle:

New from this manufacturer.

Delivery:

DHL FedEx Ups TNT EMS

Payment:

T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet

L9954LXPTR