L9347PD datasheet(1/21 Pages) STMICROELECTRONICS

Il numero della parte	L9347PD

Spiegazioni elettronici	INTELLIGENT QUAD 2X5A/2X2.5A LOW-SIDE SWITCH

PDF	21 Pages

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Produttore elettronici	STMICROELECTRONICS [STMicroelectronics]

Homepage	http://www.st.com

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L9347

June 2002

s

Quad low-side switch

s

2 x 5A designed as conventional switch

s

2 x 2.5A designed as switched current-regulator

s

Low ON-resistance 2 x 0.2

Ω, 2 x 0.35Ω (typ.)

s

Power SO-36 - package with integrated

cooling area

s

Integrated free-wheeling and clamping Z-diodes

s

Output slope control

s

Short circuit protection

s

Selective overtemperature shutdown

s

Open load detection

s

Ground and supply loss detection

s

External clock control

s

Recirculation control

s

Regulator drift detection

s

Regulator error control

s

Regulator resolution 5mA

s

Status monitoring

s

Status push-pull stages

s

Electrostatic discharge (ESD) protection

DESCRIPTION

The L9347 is an integrated quad low-side power

switch to drive inductive loads like valves used in

ABS systems. Two of the four channels are current

regulators with current range from 250mA to 2.25A

and an accuracy of 10%.

All channels are protected against fail functions.

They are monitored by a status output.

Figure 1. Pin Connection

36

N.C.

35

IN3

ST4

34

PGND3

33

32

PGND3

Q3

31

Q3

30

29

D3

28

Q2

27

26

Q2

PGND2

25

PGND2

24

23

VS

VDD

22

VCC

21

20

IN2

ST1

19

GND

1

IN4

2

3

ST3

PGND4

4

PGND4

5

6

Q4

7

D4

8

9

D4

Q1

10

Q1

11

12

PGND1

13

EN

14

15

CLK

IN1

16

ST2

17

18

TEST

99AT0060

PowerSO-36

BARE DIE

ORDERING NUMBERS:

L9347PD

L9347DIE1

INTELLIGENT QUAD (2X5A/2X2.5A) LOW-SIDE SWITCH

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