September 2013 Doc ID 14279 Rev 4 1/37
1
L9954
L9954XP
Door actuator driver
Features
Three half bridges for 1.5A load (R
on
=800mΩ)
One highside driver for 6A load (R
on
=100mΩ)
Two highside drivers for 1.5A load (R
on
=800m
Ω
)
Programmable softstart function to drive loads
with higher inrush currents (i.e. current >6A,
>1.5A)
Very low current consumption in standby mode
(I
S
< 6µA typ; T
j
85 °C)
All outputs short circuit protected
Current monitor output for highside 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 highside driver for mirror defroster
and two 10W-light bulbs.
Description
The L9954 and L9954XP are microcontroller
driven, multifunctional door actuator drivers for
automotive applications. Up to two DC motors
and three grounded resistive loads can be driven
with three half bridges and three highside drivers.
The integrated standard serial peripheral interface
(SPI) controls all operation modes (forward,
reverse, brake and high impedance). All
diagnostic information is available via the SPI.
PowerSO-36
PowerSSO-36
Table 1. Device summary
Package
Order codes
Tube Tape and reel
PowerSO-36 L9954 L9954TR
PowerSSO-36 L9954XP L9954XPTR
www.st.com
Contents L9954 / L9954XP
2/37 Doc ID 14279 Rev 4
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.1 Dual power supply: VS and VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.2 Standby mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.3 Inductive loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.4 Diagnostic functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.5 Overvoltage and undervoltage detection . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.6 Charge pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.7 Temperature warning and thermal shutdown . . . . . . . . . . . . . . . . . . . . . . 20
3.8 Open-load detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.9 Over load detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.10 Current monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.11 PWM inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.12 Cross-current protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.13 Programmable softstart function to drive loads with higher inrush current 22
4 Functional description of the SPI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.1 Serial Peripheral Interface (SPI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.2 Chip Select Not (CSN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.3 Serial Data In (DI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.4 Serial Data Out (DO) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.5 Serial clock (CLK) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.6 Input data register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.7 Status register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
L9954 / L9954XP Contents
Doc ID 14279 Rev 4 3/37
4.8 SPI - Input data and status registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5 Packages thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
6 Package and packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
6.1 ECOPACK
®
packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
6.2 PowerSO-36™ package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
6.3 PowerSSO-36™ package information . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
6.4 PowerSO-36™ packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
6.5 PowerSSO-36™ packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
7 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

L9954

Mfr. #:
Manufacturer:
STMicroelectronics
Description:
IC DVR DOOR ACTUATOR POWERSO-36
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet