E-L9823013TR Datasheet E-L9823013TR, E-L9823 | P1-P3

This is information on a product in full production.

September 2013 DocID7791 Rev 7 1/19

L9823

Octal low-side driver for bulb, resistive and inductive loads with

serial input control, output protection and diagnostic

Datasheet - production data

Features

 Outputs current capability up to 0.5 A

 Cascadable SPI control for outputs

 Reset function with reset signal or

undervoltage at V

 Programmable intrinsic output voltage

clamping at typ. 50 V 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 3.0 MHz

 Low standby current with reset = low (typ.

35 µA @ VDD)

 Open load detection (outputs off)

 Single V

logic supply

 High EMS immunity and low EME (controlled

output slopes)

 Full functionality of the remaining device at

negative voltage drop on outputs (-1.5 V or

-3.0 A)

 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 inductive loads are

driven.

Chip select and cascadable serial 8-bit Interface

for outputs control and diagnostic data transfer.

'!0'03

SO24

Table 1. Device summary

Order code Package Packing

L9823 SO24 Tube

E-L9823 SO24 Tube

www.st.com

Contents L9823

2/19 DocID7791 Rev 7

Contents

1 Block diagram and pins description . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.2 Pins description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.4 Power outputs characteristics for flyback current, outputs short circuit

protection and diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

3 Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3.2 Output stages control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3.3 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

4 Applications information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

5 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

6 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

DocID7791 Rev 7 3/19

L9823 List of tables

List of tables

Table 1. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Table 2. Pins description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Table 3. Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Table 4. Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Table 5. Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Table 6. Outputs Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Table 7. Diagnostic for outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Table 8. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

P1-P3 P4-P6 P7-P9 P10-P12 P13-P15 P16-P18 P19-P19

E-L9823013TR

Mfr. #:

Buy E-L9823013TR

Manufacturer:

STMicroelectronics

Description:

Power Switch ICs - Power Distribution Low-Side Octal Driver Serial CTRL

Lifecycle:

New from this manufacturer.

Delivery:

DHL FedEx Ups TNT EMS

Payment:

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E-L9823013TR

E-L9823013TR

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