ST L9337MD User Manual

®

L9337MD

TRIPLE LOW SIDE DRIVER

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 CURRENT < 2μA

PROGRAMMABLE SIGNAL TRANSFER POLARITY TTL AND CMOS COMPATIBLE INPUTS DEFINED OUTPUT OFF STATE OFF FOR OPEN INPUTS

THREE OPEN DRAIN DMOS OUTPUTS, WITH RDSon = 1.5 Ω at 25°C and V S > 6V OUTPUT CURRENT LIMITATION CONTROLLED OUTPUT SLOPE FOR LOW EMI OVERTEMPERATURE SHUT-DOWN INTEGRATED OUTPUT CLAMPING FOR FAST INDUCTIVE RECIRCULATION VFB > 45V STATUS MONITORING FOR

- OVERTEMPERATURE

SO20 (12+4+4)

ORDERING NUMBER: L9337MD

-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.

BLOCK DIAGRAM

CHANNEL 3

	OUT1
IN1	&
=
	THERMAL
CHANNEL 1	SHUTDOWN
4	DIAG
PRG	DIAGNOSTIC
	LOGIC

EN
	Vint
REFERENCE	Vlogic
GND VS	D97AT370

March 2000	1/8

L9337MD

ABSOLUTE MAXIMUM RATINGS (no damage or latch)

Symbol	Parameter	Value	Unit
VS	Supply voltage	-24 to 45	V
Pin voltages
VIN	Input, enable, program	-24 to 45	V
VOUT	Output	-0.3 to 45	V
VDIAG	Diagnostic output	-0.3 to 45	V

PIN CONNECTIONS (Top view)

IN1	1	20	PRG
IN2	2	19	OUT1
DIAG	3	18	OUT2
GND	4	17	GND
GND	5	16	GND
GND	6	15	GND
GND	7	14	GND
VS	8	13	OUT3
IN3	9	12	NC
NC	10	11	EN

D97AT371A

PIN DESCRIPTION

	SO 12+4+4	Pin Name	Function
	No
	8	VS	SUPPLY VOLTAGE
	4,5,6,7,14,	GND	GROUND
	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

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L9337MD

THERMAL DATA

Symbol	Parameter	SO20 (2)	SO(12+4+4) (1)	Unit
Rth (j-pins)	Thermal resistance junction to pin	–	14 (Typ.)	°C/W
Rth (j-amb)	Thermal resistance junction to ambient mounted on	77 to 97	–	°C/W
	SMPCB2 board
TjMon	Temperature-monitoring			°C
	Switch-off-level	160 to 190
	Switch-on-level	140 to 170		°C

(1)See SGS-THOMSON Microelectronics databook:"Thermal Management in Surface Mount Technology"

(2)See SGS-THOMSON Microelectronics databook:"Thermal characteristics of SO20"

OPERATING CONDITIONS (The electrical characteristics are valid within the below defined operating ranges, unless otherwise specified. The function will be guaranted by design until TjMON switch-OFF-level.

Symbol	Parameter	Value	Unit
VS	Supply Voltage	4.5 to 32	V
VIN	Input pin voltage	-24 to 45	V
VEN	Enable pin voltage	-24 to 45	V
VOUT, VD	Output pin voltage	-0.3 to 45	V
Tj	Junction temperature	-40 to 150	°C

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

Symbol	Parameter	Test Condition	Min.	Typ.	Max.	Unit
IQ	Quiescent current	-0.3V £ VEN £ 0.5V;		<2	10	mA
		VS = 14V; Tj = 85°C
		EN = high; VS £ 14V		1.5	2	mA
Inputs IN1 - IN3, PRG
VINIlow	Input voltage LOW		-24		2.0	V
VINhigh	Input voltage HIGH		2.8		45	V
IIN	Input current	-24V £ Vi £ 10V	-10		15	mA
Enable Input EN
VENlow	Input voltage LOW		-24		1	V
VENhigh	Input voltage HIGH		3.2		VS	V
REN	Input impedance	-24V < Vi < 2.5V	10			KW
IEN	Input current	2.5V £ Vi £ 25V		20	50	mA
Outputs OUT1-OUT3
RDSon	Output ON-resistor to ground	VS ³ 6V, IO = 0.3A
		Tj = 25°C		1.7	2.3	W
		Tj = 125°C			3.5	W
IOLeak	Leakage current	VO = VS = 14V; Tj = 85°C		£1	5	mA
VOClamp	Output voltage during clamping	time < 200ms; 10mA £ Io £ 0.3A	45	52	60	V
IOSC	Short-circuit current		400	700	1200	mA
CO	Internal output capacities	VO ³ 4.5V			100	pF
Diagnostic output DIAG
VDlow	Output voltage LOW	IDL £ 1mA		0.3	0.5	V
IDmax	Max. Output current	Internal current limitation	1	5	15	mA
IDleak	Leakage current	VS = 14V; TJ = 85°C		£ 0.1	1	mA

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