Features
L99DZ81EP
Door actuator driver
Data brief
■ One full bridge for 6 A load (R
■ One half bridge for 3 A load (R
■ One configurable highside driver for up to 1.5 A
(R
= 500 mΩ) or 0.4 A (RON= 1600 mΩ)
ON
= 150 mΩ)
ON
=300mΩ)
ON
load
■ One configurable high-side driver for 0.8 A
(R
= 800 mΩ) or 0.4 A (RON= 1600 mΩ)
ON
load
■ Two high-side drivers for 0.5 A load
(R
= 1600 mΩ)
ON
■ Programmable softstart function to drive loads
with higher inrush currents as current limitation
value
■ Very low V
mode (I
■ Current monitor output for all high-side drivers
■ Central two-stage charge pump
■ Motor bridge driver with full R
■ Device contains temperature warning and
current consumption in standby
S
< 6 µA typ. Tj≤ 85°C)
S
down to 6 V
dson
protection
■ Open-load detection for all outputs
■ Overcurrent protection for all outputs
■ Separated half bridges for door lock motor
■ Programmable PWM control of all outputs
■ STM standard serial peripheral interface (ST-
SPI 3.0)
■ Prepared for additional fail-safe path for
H-Bridge
*$3*&)7
TQFP-64
Applications
■ Door Actuator Driver with 3 bridges for Double
Door Lock Control, 4 high-side drivers for bulb
and LED control.
■ Motor bridge driver to control four external
power transistors in H-Bridge configuration
Description
The L99DZ81EP is a microcontroller driven
multifunctional door actuator driver for automotive
applications. Up to two DC motors and four
grounded resistive loads can be driven with three
half bridges and four high-side drivers.
Four external MOS transistors in bridge
configuration can be driven. The integrated SPI
controls all operating modes (forward, reverse,
brake and high impedance). Also all diagnostic
information is available via SPI read.
Table 1. Device summary
Package
TQFP-64 L99DZ81EP L99DZ81EPTR
November 2011 Doc ID 022498 Rev 1 1/4
For further information contact your local STMicroelectronics sales office.
Order codes
Tray Tape and re el
www.st.com
1
Package information L99DZ81EP
1 Package information
1.1 ECOPACK
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK
specifications, grade definitions and product status are available at: www.st.com
ECOPACK
®
packages, depending on their level of environmental compliance. ECOPACK®
®
is an ST trademark.
®
.
2/4 Doc ID 022498 Rev 1
L99DZ81EP Revision history
2 Revision history
Table 2. Document revision history
Date Revision Changes
16-Nov-2011 1 Initial release.
Doc ID 022498 Rev 1 3/4
L99DZ81EP
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