STMicroelectronics L9337MD Triple low side driver Datasheet

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
PROGRAMMABLESIGNALTRANSFER 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 VS > 6V
OUTPUT CURRENT LIMITATION
CONTROLLEDOUTPUTSLOPE 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
SHUTDOWN
CHANNEL 1
DIAG
4
PRG
DIAGNOSTIC
LOGIC
EN
Vint
REFERENCE Vlogic
GND VS
March 2000
D97AT370
1/8
L9337MD
ABSOLUTE MAXIMUM RATINGS (no damage or latch)
Symbol
VS
Parameter
Supply voltage
Value
Unit
-24 to 45
V
Pin voltages
Input, enable, program
-24 to 45
V
V OUT
Output
-0.3 to 45
V
VDIAG
Diagnostic output
-0.3 to 45
V
VIN
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
No
2/8
Pin Name
Function
8
VS
4,5,6,7,14,
15,16,17
GND
SUPPLY VOLTAGE
GROUND
11
EN
ENABLE
20
PRG
PROGRAM
3
DIAG
DIAGNOSTIC
1
IN1
INPUT 1
2
IN2
INPUT 2
9
IN3
19
OUT 1
OUTPUT 1
18
OUT 2
OUTPUT 2
13
OUT 3
OUTPUT 3
10, 12
NC
INPUT 3
NOT CONNECTED
L9337MD
THERMAL DATA
Symbol
Parameter
R th (j-pins)
Thermal resistance junction to pin
Rth (j-amb)
Thermal resistance junction to ambient mounted on
SMPCB2 board
TjMon
SO20 (2)
SO(12+4+4) (1)
Unit
–
14 (Typ.)
°C/W
77 to 97
–
°C/W
Temperature-monitoring
Switch-off-level
Switch-on-level
°C
°C
160 to 190
140 to 170
(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 guarantedby 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
V EN
Enable pin voltage
-24 to 45
V
VOUT, VD
Output pin voltage
-0.3 to 45
V
Junction temperature
-40 to 150
°C
Tj
ELECTRICAL CHARACTERISTICS (Refer to the test circuit, unless otherwise specified.)
Symbol
IQ
Parameter
Quiescent current
Typ.
Max.
Unit
-0.3V ≤ VEN ≤ 0.5V;
VS = 14V; Tj = 85°C
Test Condition
Min.
<2
10
µA
EN = high; VS ≤ 14V
1.5
2
mA
2.0
V
Inputs IN1 - IN3, PRG
VINIlow
Input voltage LOW
VINhigh
Input voltage HIGH
IIN
Input current
-24
-24V ≤ Vi ≤ 10V
2.8
45
V
-10
15
µA
V
Enable Input EN
VENlow
Input voltage LOW
-24
1
VENhigh
Input voltage HIGH
3.2
VS
10
V
R EN
Input impedance
-24V < Vi < 2.5V
KΩ
IEN
Input current
2.5V ≤ Vi ≤ 25V
20
50
µA
VS ≥ 6V, IO = 0.3A
Tj = 25°C
Tj = 125°C
1.7
2.3
3.5
Ω
Ω
Outputs OUT1-OUT3
RDSon
IOLeak
VOClamp
Output ON-resistor to ground
Leakage current
VO = VS = 14V; Tj = 85°C
Output voltage during clamping
time < 200µs; 10mA ≤ Io ≤ 0.3A
IOSC
Short-circuit current
CO
Internal output capacities
≤1
5
µA
45
52
60
V
400
700
1200
mA
100
pF
0.3
0.5
V
5
15
mA
≤ 0.1
1
µA
VO ≥ 4.5V
Diagnostic output DIAG
VDlow
Output voltage LOW
IDL ≤ 1mA
IDmax
Max. Output current
Internal current limitation
IDleak
Leakage current
VS = 14V; TJ = 85°C
1
3/8
L9337MD
ELECTRICAL CHARACTERISTICS (Continued)
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
2.5
3.5
µs
3
4.5
µs
10
µs
Timing (see Fig. 1)
td,on
On delay time
td,off
Off delay time
tset
Enable settling time
td,DIAG
VS = 14V, C ext = 0pF
10mA ≤ IO ≤ 200mA
On or Off diagnostic delay time
Output slopes
Sout
2.5
9
10
µs
16
V/µs
Figure 1
VEN
VINhigh
VINlow
active
t
VPRG
Non-Inverting Mode
VINhigh
Inverting Mode
VINlow
t
VIN
VINhigh
VINlow
t
VOUT
VS
1/2VS
t
tset
td,off
td,on
No controlled output slope for enable low
4/8
td,off
td,on
td,off
td,on
tset
D95AT150
L9337MD
CIRCUIT DESCRIPTION
The L9337 is a triple 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. 100mV.
Each input stage has an input voltage protection
from -24V to 10V. The device can be activated
with a ’high’ signal on ENable input. ENable ’low’
switches the device into the sleep mode. In this
mode the quiescent current is less than 10µA. A
high signal on PRoGramming input changes the
signal transfer polarity from noninverting into the
inverting mode. Normally this pin is connected to
VS or GND. These pins (PRG and EN) are internally fixed at low status by open input condition.
Independent of the PRoGramming input, the
OUTput switches off, if the signal INput pin is not
connected.
Each output driver has a current limitation of min
0.4A and a seperate thermal shut-down. The thermal shut-down deactivates that output which ex-
ceeds 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 285mA without activating thermal shut-down at 85°C ambient temperature (SO20). The slew rate of the output is
limited to max. 14V/µs to reduce the electromagnetic interference, but not for the enable transfer
characteristic (see fig. 1). An integrated active flyback voltage limitation clamps the output voltage
during the flyback phase of inductive loads to typ.
50V. The power DMOS switches ON, if the device
is enabled and the OUTput swings below ground.
This protection avoids the activation of parasitics
inside the power DMOS.
The DIAGnostic 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 overtemperature.
DIAGNOSTIC TABLE
Pins
Normal function
EN
PRG
IN
OUT
DIAG
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)
Overtemperature,
disconnected ground or
supply voltage
H
L
X
H (off) *
H (off)
Overtemperature
H
H
X
H (off) *
L (on)
X = not relevant * selective for each channel at overtemperature
5/8
L9337MD
Figure 2: Application circuit for inverting transfer polarity.
BOARD VOLTAGE 14 V
VCC = 5V
10µF
VCC
PRG
INT
VS
MICROCONTROLLER
DIAG
A 0:8
8
Adressdecoder
VCC = 5V
EN
2W
D0
IN 1
OUT 1
D1
IN 2
OUT 2
D2
IN 3
12 mH
240 Ω
VCC
OUT 3
D3
IN
50 kHz
GND
6/8
GND
10µH
50pF
GND
L9337MD
mm
DIM.
MIN.
TYP.
inch
MAX.
MIN.
TYP.
MAX.
A
2.35
2.65
0.093
0.104
A1
0.1
0.3
0.004
0.012
B
0.33
0.51
0.013
0.020
C
0.23
0.32
0.009
0.013
D
12.6
13
0.496
0.512
E
7.4
7.6
0.291
0.299
e
1.27
OUTLINE AND
MECHANICAL DATA
0.050
H
10
10.65
0.394
0.419
h
0.25
0.75
0.010
0.030
L
0.4
1.27
0.016
0.050
SO20
K
0° (min.)8° (max.)
L
h x 45°
A
B
e
A1
K
C
H
D
20
11
E
1
1
0
SO20MEC
7/8
L9337MD
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of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is
granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specification mentioned in this publication are
subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products
are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics.
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