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L9338MDTR;L9338MD;L9338D;L9338DTR;E-L9338MD;中文规格书,Datasheet资料

This is information on a product in full production.

April 2012

Doc ID 1766 Rev 41/14

L9338

Quad low side driver

Datasheet production data

Features

■Wide input voltage range from -24 V up to +45 V ■Wide operating supply voltage range from 4.5V up to 32V

■Reverse biasing protected (V S = -24 V)■Very low standby quiescent current < 2 μA ■Programmable signal transfer polarity ■TTL and CMOS compatible inputs ■Defined output off state off for open inputs ■Three open drain DMOS outputs, with R DSon =1.5 Ω. at 25 °C and V S > 6 V ■Output current limitation

■Controlled output slope for low EMI ■Over temperature shut-down

■Integrated output clamping for fast inductive recirculation V FB > 45 V

Status monitoring for:–Over temperature

–Disconnected ground or supply voltage

ESD: all pins are guaranteed till 2 kV human body mode

Description

The L9338 is a monolithic integrated quad low side driver realized in advanced Multipower-BCD technology. It is intended to drive lines, lamps or relays in automotive or industrial applications.

Table 1.

Device summary

Order code Package Packing E-L9338MD SO20Tube E-L9338MD/TR

SO20

T ape and reel

https://www.wendangku.net/doc/651095878.html,

Contents L9338

Contents

1Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2Pins description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3.1Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3.2Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3.3Operating condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3.4Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 4Circuit description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 5Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 6Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2/14Doc ID 1766 Rev 4

L9338List of tables List of tables

Table 1.Device summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Table 2.Pins function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Table 3.Absolute maximum ratings (no damage or latch). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Table 4.Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Table 5.Operating condition. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Table 6.Electrical characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Table 7.Diagnostic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Table 8.Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Doc ID 1766 Rev 43/14

List of figures L9338 List of figures

Figure 1.Block diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Figure 2.Pins connection diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Figure 3.Timing diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Figure 4.Application circuit for inverting transfer polarity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Figure 5.SO20 mechanical data and package dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 4/14Doc ID 1766 Rev 4

L9338Block diagram

Doc ID 1766 Rev 45/14

1 Block diagram

Pins description L9338

6/14Doc ID 1766 Rev 4

2 Pins description

Table 2.

Pins function

Pin #

Pin name

Function

1 IN1 Input 1

2 IN2 Input 2

3 DIAG Diagnostic

4,5,6,7,14, 15,16,17

GND

Ground

8 VS Supply voltage 9 IN3 Input 3 10 IN4 Input 4 11 EN Enable 12 OUT 4 Output 4 13 OUT 3 Output 3 18 OUT 2 Output 2 19 OUT 1 Output 1 20 PRG Program

Doc ID 1766 Rev 47/14

3 Electrical specifications

3.1

Absolute maximum ratings

3.2 Thermal data

3.3 Operating condition

The electrical characteristics are valid within the below defined operating ranges, unless

otherwise specified. The function will be guaranteed by design until T jMON switch-OFF-level.

Table 3.

Absolute maximum ratings (no damage or latch)

Symbol Parameter

Value Unit V S

Supply voltage

-24 to 45

V

Pin voltages

V IN Input, enable, program

-24 to 45

V

V OUT Output -0.3 to 45 V V DIAG

Diagnostic output

-0.3 to 45

V

Table 4.

Thermal data

Symbol Parameter

Value Unit R th (j-pins)Thermal resistance junction-to-pin 14 (T yp.) °C/W T jMon

T emperature-monitoring

Switch-off-level Switch-on-level

160 to 190140 to 170

°C °C

Table 5.

Operating condition

Symbol Parameter

Value Unit V S Supply voltage 4.5 to 32 V V IN Input pin voltage -24 to 45 V V EN

Enable pin voltage

-24 to 45 V V OUT , V D Output pin voltage

-0.3 to 45 V T j

Junction temperature

-40 to 150

°C

3.4 Electrical

characteristics

Table 6.Electrical characteristics

Symbol Parameter Test Condition Min. Typ.Max.Unit

I Q Quiescent

current -0.3V ≤ V EN≤ 0.5V;

V S = 14V; T j = 85°C

-< 2 10 μA EN = high; V S≤ 14V - 1.5 2 mA

Inputs IN1 - IN3, PRG

V INIlow Input voltage low --24 - 2.0 V

V INhigh Input voltage high - 2.8 -45 V

I IN Input current -24 V ≤ V i≤ 10 V -10 -15 μA Enable input EN

V ENlow Input voltage low --24 - 1 V

V ENhigh Input voltage high - 3.2 -V S V R EN Input impedance -24V < V i < 2.5V10 --kΩ

I EN Input current 2.5V ≤ V i≤ 25V -20 50 μA Outputs OUT1-OUT3

R DSon Output on-resistor to ground V S≥ 6 V, I O= 0.3 A

T j = 25 °C

T j = 125 °C

- 1.7 2.3

3.5

Ω

Ω

I OLeak Leakage current V O = V S = 14 V; T j = 85 °C -≤1 5 μA

V OClamp Output voltage during clamping time < 200 μs; 10 mA ≤ Io ≤ 0.3 A 45 52 60 V

I OSC Short-circuit

current -400 700 1200 mA

C O Internal output capacities V O≥ 4.5V--100 pF Diagnostic output DIAG

V Dlow Output voltage low I DL≤ 1 mA -0.3 0.5 V

I Dmax Max. Output current Internal current limitation 1 5 15 mA

I Dleak Leakage current V S = 14 V; T J = 85 °C -≤0.1 1 μA Timing (see Figure3)

t d,on On delay time

V S = 14 V, C ext = 0 pF

10 mA ≤ I O≤ 200m A - 2.5 3.5 μs

t d,off Off delay time - 3 4.5 μs t set Enable settling time --10 μs t d,DIAG On or off diagnostic delay time --10 μs S out Output

slopes 2.5 9 16 V/μs

8/14Doc ID 1766 Rev 4

Doc ID 1766 Rev 49/14

Circuit description L9338

10/14Doc ID 1766 Rev 4

4 Circuit description

The L9338 is a quad low side driver for lines, lamps or inductive loads in automotive and

industrial applications.

All inputs are TTL or CMOS compatible. This allows the device to be driven directly by a microcontroller. For the noise immunity, all inputs have a Schmitt-trigger with a hysteresis of typ. 100 mV .

Each input stage has an input voltage protection from -24 V to 45 V. The device can be activated with a ’high’ signal on Enable (EN) input. Enable ’low’ switches the device into the sleep mode. In this mode the quiescent current is less than 10 mA. A high signal on

programming (PRG) input changes the signal transfer polarity from non inverting into the inverting mode. Normally this pin is connected to V S or GND. These pins (PRG and EN) are internally fixed at low status by open input condition.

Independent of the programming input, the output (OUT) switches off, if the signal input (IN) pin is not connected.

Each output driver has a current limitation of min. 0.4 A and a separate thermal shut-down. The thermal shut-down deactivates that output which exceeds temperature switch off level. About 20K below this temperature threshold the output will be activated again. This means, that each output is able to sink continuously 285 mA without activating thermal shut-down at 85 °C ambient temperature. The slew rate of the output is limited to max. 14 V/ms to reduce the electromagnetic interference, but not for the enable transfer characteristic (see

Figure 3). An integrated active flyback voltage limitation clamps the output voltage during the flyback phase of inductive loads to typ. 50 V . The power DMOS switches ON, if the

device is enabled and the output swings below ground. This protection avoids the activation of parasitic inside the power DMOS.

The diagnostic (DIAG) is an open drain output. The logic status depends on the

programming pin. If the PRG pin is ’low’ the DIAG output becomes low, if the device works correctly.

At thermal shut-down of one channel, disconnected ground or supply voltage the diagnostic output becomes high. If the PRG pin is ’high’ this output is switched off at normal function and switched on at over temperature.

Table 7.

Diagnostic

Pins EN PRG IN OUT DIAG

Normal function

H

L

L

L (on)

L (on)

H L H H (off) L (on)

H H L H (off) H (off) H H H L (on) H (off)

L X X H (off) H (off)

Over temperature, disconnected ground or supply voltage

H L X H (off)

(1)

1.Selective for each channel at over temperature.X = not relevant.

H (off) Over temperature H H X H (off)

(1) L (on)

分销商库存信息:

STM

L9338MD/TR L9338MD L9338D

L9338DTR E-L9338MD E-L9338MD/TR

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