ST L9337MD User Manual

®

WIDE INPUT VOLTAGE RANGE FROM -24V
UP TO +45V

WIDE OPERATING SUPPLY VOLTAGE
RANGE FROM 4.5V UP TO 32V

REVERSE BIASING PROTECTED (VS = -24V)
VERY LOW STANDBY QUIESCENT CUR-

RENT < 2µA
PROGRAMMABLE SIGNAL TRANSFER POLARITY
TTL AND CMOS COMPATIBLE INPUTS
DEFINED OUTPUT OFF STATE OFF FOR

OPEN INPUTS
THREE OPEN DRAIN DMOS OUTPUTS,

WITH R

= 1.5 Ω at 25°C and VS > 6V

DSon

OUTPUT CURRENT LIMITATION
CONTROLLED OUTPUT SLOPE FOR LOW EMI
OVER TE M PERATU RE SHUT-DO W N
INTEGRATED OUTPUT CLAMPING FOR

FAST INDUCTIVE RECIRCULATION V

> 45V

FB

STATUS MONITORING FOR

- OVERTEMPERAT UR E

L9337MD

TRIPLE LOW SIDE DRIVER

SO20 (12+4+4)

ORDERING NUMBER:

- DISCONNECTED GROUND OR SUPPLY
VOLTAGE

ESD: ALL PINS ARE GUARANTEED TILL 2kV
HUMAN BODY MODEL

DESCRIPTION

The L9337MD is a monolithic integrated triple low
side driver realized in advanced Multipower-BCD
technology. It is intended to drive lines, lamps or
relais in automotive or industrial applications.

L9337MD

BLOCK DIAGRAM

IN1

PRG

EN

CHANNEL 3

CHANNEL 1

= &

THERMAL

SHUTDOWN

4

DIAGNOSTIC

LOGIC

REFERENCE

VSGND

OUT1

DIAG

Vint

Vlogic

D97AT370

March 2000

1/8

L9337MD

ABSOLUTE MAXIMUM RATINGS

(no damage or latch)

Symbol Parameter Value Unit

V

S

Supply voltage -24 to 45 V

Pin voltages

V

IN

V

OUT

V

DIAG

PIN CONNECTIONS

Input, enable, program -24 to 45 V
Output -0.3 to 45 V
Diagnostic output -0.3 to 45 V

(Top view)

IN1
IN2

DIAG

GND
GND
GND
GND

VS

IN3 NC

NC EN

2
3
4
5
6
7
8
9
10

D97AT371A

20
19
18
17
16
15
14
13
12
11

PRG1
OUT1
OUT2
GND
GND
GND
GND
OUT3

PIN DESCRIPTION

SO 12+4+4

N

o

8 VS SUPPLY VOLTAGE

4,5,6,7,14,

15,16,17

11 EN ENABLE
20 PRG PROGRAM

3 DIAG DIAGNOSTIC
1 IN1 INPUT 1
2 IN2 INPUT 2

9 IN3 INPUT 3
19 OUT 1 OUTPUT 1
18 OUT 2 OUTPUT 2
13 OUT 3 OUTPUT 3

10, 12 NC NOT CONNECTED

2/8

Pin Name Function

GND GROUND

THERMAL DATA

L9337MD

Symbol Parameter SO20

R

th (j-pins )

R

th (j-amb)

Thermal resistance junction to pin – 14 (Typ.) °C/W
Thermal resistance junction to ambient mounted on

77 to 97 – °C/W

(2)

SO(12+4+4)

(1)

SMPCB2 board

T

jMon

(1) See SGS-THOMSON Microelec tronics dat abook:" Ther mal Manageme nt in Surface Mount Tec hnology"
(2) See SGS-THOMSON Microelec tronics dat abook:" Ther mal charact e ri stic s of SO20"

OPERATING CONDITIONS

ranges, unless otherwise specified. The function will be guaranted by design until T

Temperature-monitoring
Switch-off-level
Switch-on-level

(The electrical characteristics are valid within the below defined operating

160 to 190
140 to 170

jMON

switch-OFF-level.

Symbol Parameter Value Unit

V

S

V

IN

V

EN

, V

V

OUT

T

j

ELECTRICAL CHARACTERISTICS

Supply Voltage 4.5 to 32 V
Input pin voltage -24 to 45 V
Enable pin voltage -24 to 45 V
Output pin voltage -0.3 to 45 V

D

Junction temperature -40 to 150 °C

(Refer to the test circuit, unless otherwise specified.)

Symbol Parameter Test Condition Min. Typ. Max. Unit

I

Q

Quiescent current -0.3V ≤ VEN ≤ 0.5V;

V

= 14V; Tj = 85°C

S

EN = high; V

≤ 14V 1.5 2 mA

S

<2 10 µA

Inputs IN1 - IN3, PRG

V
V

INIlow
INhigh

I

IN

Input voltage LOW -24 2.0 V
Input voltage HIGH 2.8 45 V
Input current -24V ≤ Vi ≤ 10V -10 15 µA

Enable Input EN

V

V

ENhigh

R

ENlow

EN

I

EN

Input voltage LOW -24 1 V
Input voltage HIGH 3.2 VS V
Input impedance -24V < Vi < 2.5V 10 KΩ
Input current 2.5V ≤ Vi ≤ 25V 20 50 µA

Outputs OUT1-OUT3

R

DSon

I

OLeak

V

OClamp

I

OSC

C

O

Output ON-resistor to ground VS ≥ 6V, IO = 0.3A

T

= 25°C

j

T

= 125°C

j

1.7 2.3

3.5
Leakage current VO = VS = 14V; Tj = 85°C ≤15µA
Output voltage during clamping time < 200µs; 10mA ≤ Io ≤ 0.3A 45 52 60 V
Short-circuit current 400 700 1200 mA
Internal output capacities VO ≥ 4.5V 100 pF

Diagnostic output DIAG

V

Dlow

I

Dmax

I

Dleak

Output voltage LOW IDL ≤ 1mA 0.3 0.5 V
Max. Output current Internal current limitation 1 5 15 mA
Leakage current VS = 14V; TJ = 85°C ≤ 0.1 1 µA

Unit

°C
°C

Ω
Ω

3/8