Datasheet > L9951_10

L9951_10

更新时间： 2022-12-23 07:29:23

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		驱动
页数	文件大小	规格书
36页	535K
描述
Rear door actuator driver

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数据手册

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L9951_10 数据手册

L9951

L9951XP

Rear door actuator driver

Features

(2)

Type

Outputs⁽¹⁾

R_on

I_OUT

V_S

OUT1

OUT2

OUT3

OUT4

OUT5

150 mΩ

200 mΩ

800 mΩ

7.4 A

5 A

L9951

5 A

28 V

L9951XP

1.25 A

PowerSSO-36

PowerSO-36

1. See block diagram.

2. Typical values.

Applications

■ Rear door actuator driver with bridges for door

lock and safe lock and two 5W or 10W - light

bulbs.

■ One half bridge for 7.4 A load (R = 150 mΩ)

■ Two half bridges for 5 A load (R = 200 mΩ)

■ Two highside drivers for 1.25 A load

(R = 800 mΩ)

Description

■ Programmable softstart function to drive loads

with higher inrush currents (i.e.current > 7.4A,

>5A, >1.25A)

The L9951 and L9951XP are microcontroller

driven, multifunctional rear door actuator drivers

for automotive applications. Up to two DC motors

and two grounded resistive loads can be driven

with three half bridges and two hide side drivers.

The integrated standard serial peripheral interface

(SPI) controls all operation modes (forward,

reverse, brake and high impedance). All

■ Very low current consumption in standby mode

(I < 3µA, typ. T ≤ 85°C)

■ All outputs short circuit protected

■ Current monitor output for all highside drivers

■ All outputs over temperature protected

■ Open-load diagnostic for all outputs

■ Overload diagnostic for all outputs

diagnostic information is available via the SPI.

■ Programmable PWM control of all outputs

■ Charge pump output for reverse polarity

protection

Table 1.

Device summary

Package

Order codes

Tape and reel

Tube

PowerSO-36

L9951

L9951TR

PowerSSO-36

L9951XP

L9951XPTR

May 2010

Doc ID 14173 Rev 8

1/36

www.st.com

12 3 4 5 6 7...36

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