L99DZ81EP datasheet(1/4 Pages) STMICROELECTRONICS

Part #	L99DZ81EP

Description	Door actuator driver

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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Data brief

For further information contact your local STMicroelectronics sales office.

November 2011

Doc ID 022498 Rev 1

1/4

1

L99DZ81EP

Door actuator driver

Features

■ One full bridge for 6 A load (RON = 150 mΩ)

■ One half bridge for 3 A load (RON =300 mΩ)

■ One configurable highside driver for up to 1.5 A

(RON = 500 mΩ) or 0.4 A (RON = 1600 mΩ)

load

■ One configurable high-side driver for 0.8 A

(RON = 800 mΩ) or 0.4 A (RON = 1600 mΩ)

load

■ Two high-side drivers for 0.5 A load

(RON = 1600 mΩ)

■ Programmable softstart function to drive loads

with higher inrush currents as current limitation

value

■ Very low VS current consumption in standby

mode (IS < 6 µA typ. Tj ≤ 85°C)

■ Current monitor output for all high-side drivers

■ Central two-stage charge pump

■ Motor bridge driver with full Rdson down to 6 V

■ Device contains temperature warning and

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

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.

TQFP-64

Table 1.

Device summary

Package

Order codes

Tray

Tape and reel

TQFP-64

L99DZ81EP

L99DZ81EPTR

www.st.com

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