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
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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
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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
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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