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L9823

Octal Low-Side Driver for bulb, resistive and inductive loads with

serial input control, output protection and diagnostic

s

s

s

s

s

s

s

s

s

s

s

s

OUTPUTS CURRENT CAPABILITY UP TO

0.5A

CASCADABLE SPI CONTROL FOR

OUTPUTS

RESET FUNCTION WITH RESET SIGNAL OR

UNDERVOLTAGE AT V

DD

PROGRAMMABLE INTRINSIC OUTPUT

VOLTAGE CLAMPING AT TYP. 50V FOR

INDUCTIVE SWITCHING

OVERCURRENT SHUTDOWN WITH LATCH-

OFF FOR EVERY WRITE CYCLE (SFPD = LOW)

INDEPENDENT THERMAL SHUTDOWN OF

OUTPUTS (SOA PROTECTION)

OUTPUT STATUS DATA AVAILABLE ON THE

SPI USING 8-BIT I/O PROTOCOL UP TO 3.0MHZ

LOW STANDBY CURRENT WITH RESET =

LOW (TYP 35碌A(chǔ) @ VDD)

OPEN LOAD DETECTION (OUTPUTS OFF)

SINGLE V

DD

LOGIC SUPPLY

HIGH EMS IMMUNITY AND LOW EME

(CONTROLLED OUTPUT SLOPES)

FULL FUNCTIONALITY OF THE REMAINING

DEVICE AT NEGATIVE VOLTAGE DROP ON

VDD

OL0

SO24 (20+2+2)

ORDERING NUMBER: L9823

s

OUTPUTS (-1,5V OR -3,0A)

OUTPUT MODE PROGRAMMABLE FOR

SUSTAINED CURRENT LIMIT OR

SHUTDOWN

DESCRIPTION

L9823 is a Octal Low-Side Driver Circuit, dedicated

for automotive applications. Output voltage clamping

is provided for flyback current recirculation, when in-

ductive loads are driven. Chip Select and cascadable

Serial 8-bit Interface for outputs control and diagnos-

tic data transfer.

BLOCK DIAGRAM

16

SFPD

15

-

+

OUT0

VDG

=

24

IOL

SPI

Interface

Output Latch

CSB

10

SCLK

3

Shift Register

Q0

Q1

Q2

Q3

Q4

Q5

Q6

Q7

Q0

ISCB 0

OT0

Diag0

Gate

Control

+

-

Over

Temperature

Detect

-

+

=

CH0

CH1

CH2

CH3

CH4

CH5

CH7

CH7

OUT1

23

SI

4

SO

9

Diag0

Q1

Diag1

Diag1

Diag2

Q2

Diag3

Diag2

Diag4

Diag5

Q3

Diag6 Diag3

Diag7

Q4

Diag4

Q5

Diag5

OUT2

14

OUT3

13

OUT4

12

OUT5

11

Reset

22

Reset

Undervoltage

RESET

Reset

Q6

Diag6

Q7

Diag7

OUT6

2

OUT7

1

GND

5 -8

17 - 20

April 2003

1/12

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L9823相關(guān)型號PDF文件下載

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