E-L9338MD [STMICROELECTRONICS]
Quad low side driver;
| 型号： | E-L9338MD |
| 厂家： | 
ST |
| 描述： | Quad low side driver 驱动 CD 光电二极管 接口集成电路 驱动器 |
| 文件： | 总14页 (文件大小：172K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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
4.5 V up to 32 V
■ Reverse biasing protected (V = -24 V)
S
■ Very low standby quiescent current < 2 µA
■ Programmable signal transfer polarity
■ TTL and CMOS compatible inputs
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SO20
■ Defined output off state off for open inputs
■ Three open drain DMOS outputs, with
R
= 1.5 . at 25 °C and V > 6 V
DSon
S
■ ESD: all pins are guaranteed till 2 kV human
■ Output current limitation
body mode
■ Controlled output slope for low EMI
■ Over temperature shut-down
Description
■ Integrated output clamping for fast inductive
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.
recirculation V > 45 V
FB
■ Status monitoring for:
– Over temperature
– Disconnected ground or supply voltage
Table 1.
Device summary
Order code
Package
Packing
E-L9338MD
SO20
SO20
Tube
E-L9338MD/TR
Tape and reel
September 2013
Doc ID 1766 Rev 5
1/14
This is information on a product in full production.
www.st.com
1
Contents
L9338
Contents
1
2
3
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Pins description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.1
3.2
3.3
3.4
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Operating condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4
5
6
Circuit description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
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L9338
List of tables
List of tables
Table 1.
Table 2.
Table 3.
Table 4.
Table 5.
Table 6.
Table 7.
Table 8.
Device summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Pins function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Absolute maximum ratings (no damage or latch) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Operating condition. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Diagnostic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Doc ID 1766 Rev 5
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List of figures
L9338
List of figures
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Pins connection diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Timing diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Application circuit for inverting transfer polarity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
SO20 mechanical data and package dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4/14
Doc ID 1766 Rev 5
L9338
Block diagram
1
Block diagram
Figure 1.
Block diagram
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Pins description
L9338
2
Pins description
Figure 2.
Pins connection diagram
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Table 2.
Pin #
Pins function
Pin name
Function
1
IN1
IN2
Input 1
Input 2
2
3
DIAG
GND
VS
Diagnostic
Ground
4,5,6,7,14, 15,16,17
8
Supply voltage
Input 3
9
IN3
10
11
12
13
18
19
20
IN4
Input 4
EN
Enable
OUT 4
OUT 3
OUT 2
OUT 1
PRG
Output 4
Output 3
Output 2
Output 1
Program
6/14
Doc ID 1766 Rev 5
L9338
Electrical specifications
3
Electrical specifications
3.1
Absolute maximum ratings
Table 3.
Symbol
Absolute maximum ratings (no damage or latch)
Parameter
Value
Unit
VS
Supply voltage
-24 to 45
V
Pin voltages
VIN
Input, enable, program
-24 to 45
-0.3 to 45
-0.3 to 45
V
V
V
VOUT
VDIAG
Output
Diagnostic output
3.2
3.3
Thermal data
Table 4.
Symbol
Thermal data
Parameter
Value
Unit
Rth (j-pins) Thermal resistance junction-to-pin
Temperature-monitoring
14 (Typ.)
C/W
TjMon
Switch-off-level
Switch-on-level
160 to 190
140 to 170
C
C
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 switch-OFF-level.
jMON
Table 5.
Symbol
Operating condition
Parameter
Value
Unit
VS
VIN
VEN
Supply voltage
4.5 to 32
-24 to 45
-24 to 45
-0.3 to 45
-40 to 150
V
V
Input pin voltage
Enable pin voltage
V
VOUT, VD Output pin voltage
Tj Junction temperature
V
C
Doc ID 1766 Rev 5
7/14
Electrical specifications
L9338
Unit
3.4
Electrical characteristics
Table 6.
Symbol
Electrical characteristics
Parameter
Test Condition
-0.3V VEN 0.5V;
Min.
Typ.
Max.
-
-
< 2
1.5
10
2
A
VS = 14V; Tj = 85°C
IQ
Quiescent current
EN = high; VS 14V
mA
Inputs IN1 - IN3, PRG
VINIlow Input voltage low
VINhigh Input voltage high
-
-24
2.8
-10
-
-
-
2.0
45
15
V
V
-
IIN
Input current
-24 V Vi 10 V
A
Enable input EN
VENlow Input voltage low
VENhigh Input voltage high
-
-24
3.2
10
-
-
-
1
VS
-
V
V
-
REN
IEN
Input impedance
Input current
-24V < Vi < 2.5V
-
k
A
2.5V Vi 25V
20
50
Outputs OUT1-OUT3
VS 6 V, IO= 0.3 A
RDSon Output on-resistor to ground
-
1.7
2.3
3.5
Tj = 25 °C
Tj = 125 °C
IOLeak Leakage current
VO = VS = 14 V; Tj = 85 °C
-
45
400
-
1
52
700
-
5
A
V
VOClamp Output voltage during clamping
time < 200 s; 10 mA Io 0.3 A
60
IOSC
CO
Short-circuit current
-
1200
100
mA
pF
Internal output capacities
VO 4.5V
Diagnostic output DIAG
VDlow
IDmax
IDleak
Output voltage low
Max. Output current
Leakage current
IDL 1 mA
-
1
-
0.3
5
0.5
15
1
V
Internal current limitation
VS = 14 V; TJ = 85 °C
mA
A
0.1
Timing (see Figure 3)
td,on
td,off
tset
On delay time
-
-
2.5
3
3.5
4.5
10
s
s
Off delay time
VS = 14 V, Cext = 0 pF
Enable settling time
-
-
s
10 mA IO 200m A
td,DIAG On or off diagnostic delay time
Sout Output slopes
-
-
10
s
2.5
9
16
V/s
8/14
Doc ID 1766 Rev 5
L9338
Electrical specifications
Figure 3.
Timing diagram
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Doc ID 1766 Rev 5
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Circuit description
L9338
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 or GND. These pins (PRG and EN) are
S
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
H
H
H
H
L
L
L
L
H
L
L (on)
H (off)
H (off)
L (on)
H (off)
L (on)
L (on)
H(off)
H(off)
H(off)
Normal function
H
H
X
H
X
Over temperature, disconnected
ground or supply voltage
H
H
L
X
X
H (off) (1)
H (off) (1)
H (off)
L (on)
Over temperature
H
1. Selective for each channel at over temperature.
X = not relevant.
10/14
Doc ID 1766 Rev 5
L9338
Circuit description
Figure 4.
Application circuit for inverting transfer polarity
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Package information
L9338
5
Package information
In order to meet environmental requirements, ST offers these devices in different grades of
®
®
ECOPACK packages, depending on their level of environmental compliance. ECOPACK
specifications, grade definitions and product status are available at: www.st.com.
®
ECOPACK is an ST trademark.
Figure 5. SO20 mechanical data and package dimensions
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12/14
Doc ID 1766 Rev 5
L9338
Revision history
6
Revision history
Table 8.
Date
Document revision history
Revision
Changes
March 2000
10-Apr-2012
16-Sept-2013
3
Document reformatted.
4
5
Updated ordering numbers, see Table 1: Device summary on
page 1.
Updated Disclaimer
Doc ID 1766 Rev 5
13/14
L9338
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Doc ID 1766 Rev 5
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